Adsorption material particle, air purification assembly and air purification device

Abstract

The invention provides an adsorption material particle and a household electrical appliance wherein the adsorption material particle comprises: an activated carbon support having a porous structure; the molecular sieve is arranged on the activated carbon bracket. The adsorption material particle provided by the invention is based on the selective adsorbability of the molecular sieve, and has a relatively strong targeted adsorption effect on VOCs, ammonia, sulfide and other substances in to-be-purified gas in practical application, so that the adsorption material particle provided by the invention can have a relatively high utilization rate and a relatively long service cycle; the gas purification cost is reduced, and the user experience of the product is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of purification equipment, and in particular to an adsorption material particle, an air purification component and an air purification device. Background Art

[0002] In the field of air purification, in order to remove toxic and harmful substances and odors in the air, activated carbon is usually used to adsorb VOCs (Volatile Organic Compounds) and odor sources in the air. However, in actual applications, it is found that the adsorption efficiency and adsorption effect of activated carbon are relatively poor, the odor removal effect is difficult to meet expectations, and the service life is relatively short, which increases the cost of air purification and affects the user experience of the product. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides an adsorbent material particle.

[0005] A second aspect of the present invention provides a household appliance.

[0006] A third aspect of the present invention provides an air purification device.

[0007] In view of this, according to a first aspect of an embodiment of the present application, an adsorption material particle is proposed, comprising:

[0008] An activated carbon support, the activated carbon support is a porous structure;

[0009] Molecular sieve, arranged on an activated carbon support.

[0010] In a feasible embodiment, the molecular sieve is a hydrophobic molecular sieve.

[0011] In a feasible embodiment, the water contact angle of the activated carbon support and / or the molecular sieve is greater than or equal to 90°; and / or

[0012] The water absorption rate of the activated carbon support and / or the molecular sieve is less than or equal to 30%.

[0013] In a feasible embodiment, the specific surface area of ​​the activated carbon support is greater than or equal to 600 m 2 / g.

[0014] In a possible embodiment, at least a portion of the molecular sieve is attached to the outer surface of the activated carbon support.

[0015] In a feasible embodiment, the molecular sieve accounts for a weight percentage of greater than or equal to 2% and less than or equal to 25% of the adsorption material particles.

[0016] In a feasible embodiment, the activated carbon support is formed with a plurality of mesopores, and part of the molecular sieve is located in the mesopores; and / or

[0017] The activated carbon support is formed with a plurality of large pores, and part of the molecular sieve is located in the large pores.

[0018] In a feasible implementation manner, the activated carbon support is coal-based columnar activated carbon or coconut shell activated carbon.

[0019] In a feasible embodiment, the molecular sieve includes at least one of Beta molecular sieve, USY molecular sieve and ZSM-5 molecular sieve.

[0020] In one possible embodiment, the molecular sieve is acidic.

[0021] In a feasible embodiment, the pH value of the molecular sieve is greater than or equal to 3 and less than or equal to 5.

[0022] In a feasible embodiment, the mass ratio of the activated carbon support to the molecular sieve is less than or equal to 4 and greater than or equal to 2.

[0023] In a feasible embodiment, the adsorbent material particles further include:

[0024] The oxidant is disposed on an activated carbon support and / or a molecular sieve.

[0025] In a feasible embodiment, the oxidant is disposed on the outer surface and / or pore wall of the activated carbon support; and / or

[0026] The oxidant is disposed on the outer surface and / or pore wall of the molecular sieve.

[0027] In one possible embodiment, the oxidant includes at least one of a periodate, a transition metal oxide, and chlorine dioxide.

[0028] In a feasible embodiment, the ratio of the mass of the molecular sieve to the mass of the oxidant is greater than or equal to 5 and less than or equal to 100.

[0029] According to a second aspect of an embodiment of the present application, an air purification component is provided, comprising:

[0030] The first filter is used to filter particulate matter in the gas;

[0031] A second filter screen is disposed on one side of the first filter screen;

[0032] The adsorption material particles as proposed in any one of the first aspects are arranged on the second filter screen.

[0033] According to a third aspect of an embodiment of the present application, an air purification device is provided, comprising:

[0034] The shell is formed with an air inlet, an air outlet and an air duct, and the air inlet and the air outlet are both connected to the air duct;

[0035] The air purification component as proposed in any one of the above-mentioned second aspects is arranged in a shell and located in the air duct. Compared with the prior art, the present invention includes at least the following beneficial effects: the adsorption material particles provided in the embodiment of the present application include an activated carbon support and a molecular sieve. In practical applications, the adsorption material particles provided in the embodiment of the present application can be used as an adsorbent, a purifier or a deodorant. For example, the adsorption material particles are used to adsorb substances such as VOCs, ammonia, sulfides, etc. in the gas to be purified, so as to reduce toxic and harmful substances and odors in the gas to be purified; wherein the activated carbon support is a porous structure, and the molecular sieve is arranged on the activated carbon support, and the molecular sieve has a stronger selective adsorption of VOCs. Therefore, during use, the adsorption material particles are affected by the competitive adsorption phenomenon, which enhances the adsorption of VOCs by the adsorption material particles, which is beneficial to improve the adsorption efficiency of the adsorption material particles. The adsorption efficiency of VOCs by the adsorption material particles is high, the amount of toxic and harmful substances in the gas to be purified is reduced, the utilization rate of the adsorption material particles is improved, the replacement cycle of the adsorption material particles is extended, and the cost of gas purification is reduced. The activated carbon bracket can be used to load the aforementioned molecular sieve, and the activated carbon bracket also has an adsorption effect on VOCs, ammonia, sulfides and other substances in the gas to be purified, which is beneficial to further reduce the toxic and harmful substances and odor in the gas to be purified. At the same time, the activated carbon bracket has a porous structure, which can also make the activated carbon bracket have a higher specific surface area, which is beneficial to improve the adsorption performance and adsorption efficiency of the activated carbon bracket, and facilitate the activated carbon bracket to load more powder sieves, thereby improving the overall adsorption effect of the adsorption material particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the exemplary embodiments below. The accompanying drawings are only for the purpose of illustrating exemplary embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0037] Figure 1 A schematic structural diagram of an adsorption material particle according to an embodiment of the present application;

[0038] Figure 2 for Figure 1 A schematic partial enlarged view of the middle A area;

[0039] Figure 3A schematic structural cross-sectional view of an adsorption material particle according to an embodiment of the present application;

[0040] Figure 4 for Figure 3 Schematic partial enlarged view of area B in the middle;

[0041] Figure 5 A schematic structural diagram of an air purification component of an embodiment provided in the present application from a first viewing angle;

[0042] Figure 6 A schematic structural diagram of an air purification component of an embodiment provided in the present application from a second viewing angle;

[0043] Figure 7 for Figure 6 Schematic partial enlargement of area C in the middle.

[0044] in, Figures 1 to 7 The corresponding relationship between the reference numerals and the component names is as follows:

[0045] 100 adsorption material particles; 110 activated carbon support; 120 molecular sieve;

[0046] 200 first filter;

[0047] 300 second filter. DETAILED DESCRIPTION

[0048] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0049] like Figures 1 to 4 As shown, according to the first aspect of the embodiment of the present application, an adsorption material particle 100 is proposed, including: an activated carbon support 110, the activated carbon support 110 is a porous structure; and a molecular sieve 120, which is arranged on the activated carbon support 110.

[0050] The adsorption material particles 100 provided in the embodiment of the present application include an activated carbon support 110 and a molecular sieve 120, wherein the molecular sieve 120 is arranged on the activated carbon support 110, and the molecular sieve 120 has a stronger selective adsorption of VOCs, so that during use, the influence of competitive adsorption on the adsorption material particles 100 can be reduced, and the adsorption specificity of the adsorption material particles 100 to VOCs can be enhanced, which is beneficial to improving the adsorption efficiency of the adsorption material particles 100 to VOCs, reducing the amount of toxic and harmful substances in the gas to be purified, and improving the utilization rate of the adsorption material particles 100, extending the replacement cycle of the adsorption material particles 100, and reducing the gas purification cost.

[0051] In the adsorption material particles 100 provided in the embodiment of the present application, the activated carbon support 110 can be used to load the aforementioned molecular sieve 120, and the activated carbon support 110 also has an adsorption effect on VOCs, ammonia, sulfides and other substances in the gas to be purified, and then cooperate with the aforementioned molecular sieve 120 to further reduce the toxic and harmful substances and odor in the gas to be purified; at the same time, the activated carbon support 110 is a porous structure, which can also make the activated carbon support 110 have a higher specific surface area, which is beneficial to improve the adsorption performance and adsorption efficiency of the activated carbon support 110, and facilitate the activated carbon support 110 to load more molecular sieves 120, thereby improving the overall adsorption effect of the adsorption material particles 100.

[0052] It should be noted that in some examples, some adsorption particles usually only include activated carbon particles. However, the selective adsorption of activated carbon is poor, so in actual applications, the adsorption particles are also prone to adsorb other substances besides harmful substances such as VOCs. For example, when the humidity of the gas to be purified is high, the aforementioned adsorption particles are prone to adsorb more water under the competitive adsorption between water and VOCs, which leads to a low adsorption amount of VOCs and other substances by the activated carbon particles, resulting in low utilization of the adsorption particles, which requires frequent replacement, and increases the cost of gas purification. Compared with the aforementioned adsorption particles that only include activated carbon particles, the adsorption material particles 100 provided in the embodiment of the present application can enhance the selective adsorption of harmful substances such as VOCs by the adsorption material particles 100 by setting a molecular sieve 120 on the activated carbon support 110, which is conducive to improving the utilization rate and effective adsorption efficiency of the adsorption material particles 100, so that the adsorption material particles 100 can more specifically adsorb substances such as VOCs, ammonia, and sulfides, and improve the deodorization effect of the adsorption material particles 100.

[0053] It should be noted that in Figure 1 and Figure 3 In the figure, the dotted area is used to represent the molecular sieve 120, and a plurality of molecular sieves 120 are distributed on the activated carbon support 110. It can be understood that the activated carbon is generally a porous structure. Figure 1 and Figure 3The porous characteristics of the activated carbon support 110 are not illustrated.

[0054] It should be noted that in Figure 2 and Figure 4 In the figure, a porous structure formed by connecting a plurality of hexagons is used to illustrate the molecular sieve 120. It is understandable that the molecular sieve 120 may also be a porous structure, which is beneficial to further increase the specific surface area of ​​the molecular sieve 120, thereby improving the adsorption efficiency of the molecular sieve 120 for the adsorbate.

[0055] like Figures 1 to 4 As shown, the activated carbon support 110 and the molecular sieve 120 can both be granular structures. It can be understood that the molecular sieve 120 is arranged on the activated carbon support 110, that is, the granular molecular sieve 120 is attached to the surface of the granular activated carbon support 110, so that by using the activated carbon support 110 to load the molecular sieve 120, it is also possible to avoid the agglomeration of multiple granular molecular sieves 120, thereby improving the dispersion of the molecular sieve 120, increasing the probability of the molecular sieve 120 contacting VOCs, ammonia, sulfides and other substances, which is beneficial to improving the utilization rate and adsorption efficiency of the adsorption material particles 100; wherein, the particle size of the activated carbon support 110 can be larger than the particle size of the molecular sieve 120, for example, the activated carbon support 110 can be a porous granular structure of millimeter level or micrometer level, and correspondingly, the molecular sieve 120 can be a porous granular structure of micrometer level or nanometer level, so as Figure 1 and Figure 3 As shown, a plurality of molecular sieves 120 can be provided on each activated carbon support 110, that is, a plurality of molecular sieves 120 can be dispersedly attached to the surface of the activated carbon support 110, and thus the molecular sieves 120 can be arranged at a plurality of different positions on the activated carbon support 110, which is beneficial to further increase the probability of the molecular sieve 120 contacting VOCs, ammonia, sulfides and other substances in the gas to be purified, and improve the adsorption efficiency and adsorption effect of the adsorption material particles 100.

[0056] It should be noted that, in practical applications, the adsorption material particles 100 provided in the embodiment of the present application can be used as an adsorbent, a purifier or a deodorizer. For example, the adsorption material particles 100 can be used to adsorb VOCs (Volatile Organic Compounds), ammonia, sulfides and other substances in the gas to be purified to reduce toxic and harmful substances and odors in the gas to be purified.

[0057] For example, in practical applications, the adsorbent material particles 100 provided in the embodiment of the present application can be used as a deodorant for household appliances. It is understood that the aforementioned household appliances include but are not limited to air purifiers, air conditioners, refrigerators, etc. Taking the aforementioned household appliance as an air purifier as an example, the adsorbent material particles 100 provided in the embodiment of the present application can be set in the filter of the air purifier or air conditioner, so that when the air flows through the aforementioned filter, the adsorbent material particles 100 are used to adsorb VOCs, ammonia, sulfides and other substances in the air, thereby improving the purification effect of the air purifier or air conditioner; taking the aforementioned household appliance as a refrigerator as an example, the aforementioned refrigerator may include a deodorizing box for accommodating deodorizing materials, and a certain amount of the adsorbent material particles 100 can be taken and placed in the aforementioned deodorizing box to adsorb VOCs, ammonia, sulfides and other substances contained in the gas in the refrigerator to eliminate the odor in the refrigerator.

[0058] In some examples, the molecular sieve 120 may be a hydrophobic molecular sieve.

[0059] In this technical solution, the molecular sieve 120 can be a hydrophobic molecular sieve, so that the molecular sieve 120 has good hydrophobicity, avoiding the molecular sieve 120 from absorbing excessive moisture during use, further improving the selective adsorption of the molecular sieve 120, reducing the impact of competitive adsorption on the adsorption material particles 100, and achieving further improvement in the utilization rate of the adsorption material particles 100.

[0060] It is understandable that during the preparation of the molecular sieve 120, the molecular sieve 120 can be rendered hydrophobic by modification. For example, the silicon-aluminum ratio of the molecular sieve 120 can be increased during its synthesis, and the molecular sieve 120 with a lower aluminum content can exhibit a certain hydrophobicity.

[0061] In some examples, the water contact angle of the activated carbon support 110 and / or the molecular sieve 120 is greater than or equal to 90°; and / or the water absorption rate of the activated carbon support 110 and / or the molecular sieve 120 is less than or equal to 30%.

[0062] In this technical solution, the water contact angle of the activated carbon support 110 can be greater than or equal to 90°, so that the activated carbon support 110 can be hydrophobic. During use, the activated carbon support 110 can be prevented from absorbing too much water, which is beneficial to further reduce the water absorption of the adsorption material particles 100, and thus enable the adsorption material particles 100 to more specifically adsorb VOCs, ammonia, sulfides and other substances in the gas to be purified, thereby improving the selective adsorption of the adsorption material particles 100, achieving further improvement in the utilization rate of the adsorption material particles 100, improving the purification effect of the adsorption material particles 100 on the gas to be purified, reducing toxic and harmful substances and odors in the gas to be purified, and helping to extend the replacement cycle of the adsorption material particles 100 and reduce the cost of gas purification.

[0063] Alternatively, the water absorption rate of the activated carbon support 110 is less than or equal to 30%, so that the activated carbon support 110 has hydrophobicity. During use, the activated carbon support 110 can be prevented from absorbing too much water, which is beneficial to further reduce the water absorption of the adsorption material particles 100, and thus enable the adsorption material particles 100 to more specifically adsorb VOCs, ammonia, sulfides and other substances in the gas to be purified, thereby improving the selective adsorption of the adsorption material particles 100, achieving further improvement in the utilization rate of the adsorption material particles 100, improving the purification effect of the adsorption material particles 100 on the gas to be purified, reducing toxic and harmful substances and odors in the gas to be purified, and helping to extend the replacement cycle of the adsorption material particles 100 and reduce the cost of gas purification.

[0064] It can be understood that in this technical solution, while setting the water contact angle of the activated carbon support 110 to be greater than or equal to 90°, the water absorption rate of the activated carbon support 110 can be set to be less than or equal to 30%, thereby further improving the hydrophobicity of the activated carbon support 110 and enhancing the selective adsorption of the adsorption material particles 100, thereby achieving further improvement in the utilization rate and adsorption performance of the adsorption material particles 100.

[0065] In this technical solution, the water contact angle of the molecular sieve 120 can be greater than or equal to 90°, so that the molecular sieve 120 can be hydrophobic. During use, the selective adsorption of the adsorption material particles 100 can be further improved, and the water absorption of the molecular sieve 120 can be reduced, so that the adsorption material particles 100 can more specifically adsorb VOCs, ammonia, sulfides and other substances in the gas to be purified, thereby achieving a further improvement in the utilization rate of the adsorption material particles 100, improving the purification effect of the adsorption material particles 100 on the gas to be purified, reducing toxic and harmful substances and odors in the gas to be purified, and helping to extend the replacement cycle of the adsorption material particles 100 and reduce the cost of gas purification.

[0066] Alternatively, the water absorption rate of the molecular sieve 120 can be less than or equal to 30%, so that the molecular sieve 120 has good hydrophobicity. During use, the selective adsorption of the adsorption material particles 100 can be further improved, and the water absorption of the molecular sieve 120 can be reduced, so that the adsorption material particles 100 can be more targeted to adsorb VOCs, ammonia, sulfides and other substances in the gas to be purified, thereby achieving a further improvement in the utilization rate of the adsorption material particles 100, improving the purification effect of the adsorption material particles 100 on the gas to be purified, reducing toxic and harmful substances and odors in the gas to be purified, and helping to extend the replacement cycle of the adsorption material particles 100 and reduce the cost of gas purification.

[0067] It can be understood that in this technical solution, the water contact angle of the molecular sieve 120 can be set to be greater than or equal to 90°, and the water absorption rate of the molecular sieve 120 can be set to be less than or equal to 30%, thereby further improving the hydrophobicity of the activated carbon support 110 and enhancing the selective adsorption of the adsorption material particles 100, thereby achieving further improvement in the utilization rate and adsorption performance of the adsorption material particles 100.

[0068] It can be understood that in this technical solution, the water contact angle of the activated carbon support 110, the water absorption rate of the activated carbon support 110, the water contact angle of the molecular sieve 120 and the water absorption rate of the molecular sieve 120 can all satisfy the corresponding ranges mentioned above, or any one, any two or any three of them can satisfy the above-mentioned ranges.

[0069] It is understandable that in the process of preparing the molecular sieve 120, the molecular sieve 120 can be given hydrophobicity by means of modification treatment. For example, the silicon-aluminum ratio of the molecular sieve 120 can be increased during the synthesis process of the molecular sieve 120, and the molecular sieve 120 with a lower aluminum content can show a certain hydrophobicity, so that the water contact angle and / or water absorption rate of the molecular sieve 120 meet the above-mentioned corresponding ranges. Similarly, in the process of preparing the activated carbon support 110, the activated carbon support 110 can also be given hydrophobicity by means of modification treatment. For example, the activated carbon is treated with some hydrophobic additives to obtain an activated carbon support 110 with a hydrophobic surface, so that the water contact angle and / or water absorption rate of the activated carbon support 110 meet the above-mentioned corresponding ranges.

[0070] In some examples, the specific surface area of ​​the activated carbon support 110 is greater than or equal to 600 m 2 / g.

[0071] In this technical solution, the specific surface area of ​​the activated carbon support 110 can be set to be greater than or equal to 600m 2 / g, thereby ensuring that the activated carbon support 110 has a high specific surface area. On the one hand, it can increase the contact area between the activated carbon support 110 and the gas to be purified during use, thereby increasing the probability of the activated carbon support 110 contacting VOCs, ammonia, sulfides and other substances in the gas to be purified, and improving the adsorption efficiency of the activated carbon support 110, which is beneficial to further improve the adsorption performance and adsorption effect of the adsorption material particles 100, reduce the content and odor of toxic and harmful substances in the gas to be purified, and can improve the utilization rate of the adsorption material particles 100 to a certain extent, and reduce the gas purification cost; on the other hand, it can increase the surface area of ​​the activated carbon support 110, which is beneficial to provide more attachment positions for the molecular sieve 120, thereby improving the distribution of the molecular sieve 120 on the activated carbon support 110, facilitating the arrangement of the molecular sieve 120 at different positions on the activated carbon support 110, and increasing the probability of the molecular sieve 120 contacting VOCs, ammonia, sulfides and other substances, so as to further improve the adsorption effect and deodorization effect of the adsorption material particles 100.

[0072] In some feasible examples, the specific surface area of ​​the activated carbon support 110 is greater than or equal to 600 m 2 / g and less than or equal to 2000m 2 / g, thereby ensuring the adsorption performance of the activated carbon support 110 while avoiding the increase in material cost caused by the excessive specific surface area of ​​the activated carbon support 110, which is beneficial to further reduce the production cost of the adsorption material particles 100 and thus save gas purification costs.

[0073] like Figure 1 and Figure 2 As shown, in some examples, at least a portion of the molecular sieve 120 is attached to the outer surface of the activated carbon support 110 .

[0074] In this technical solution, at least part of the molecular sieve 120 can be attached to the outer surface of the activated carbon support 110. In combination with the foregoing, it can be understood that the molecular sieve 120 and the activated carbon support 110 can both be granular structures, and each porous activated carbon support 110 can be provided with a plurality of molecular sieves 120. Based on the foregoing setting of this solution, at least part of the molecular sieve 120 can be located on the outside of the activated carbon support 110, providing favorable conditions for the molecular sieve 120 to contact the gas to be purified, thereby further increasing the probability of the molecular sieve 120 contacting VOCs, ammonia, sulfides and other substances in the gas to be purified. The molecular sieve 120 has a higher adsorption efficiency for VOCs, which can further improve the adsorption performance and deodorization effect of the adsorption material particles 100, and is conducive to further improving the gas purification effect.

[0075] In some examples, the molecular sieve 120 accounts for a weight percentage of the adsorption material particles 100 that is greater than or equal to 2% and less than or equal to 25%.

[0076] In this technical solution, the content of molecular sieve 120 in the adsorption material particles 100 is restricted, so that on the one hand, the adsorption material particles 100 can contain relatively more molecular sieves 120, which can further improve the adsorption specificity of the adsorption material particles 100 to VOCs, ammonia, sulfides and other substances in the gas to be purified, which is beneficial to improving the utilization rate of the adsorption material particles 100 and the adsorption efficiency of harmful substances; on the other hand, it can also avoid the adsorption material particles 100 containing too much molecular sieve 120, which is beneficial to the distribution of the molecular sieve 120 on the activated carbon support 110 in a more dispersed manner, and ensure the surface coverage effect of the molecular sieve 120 on the activated carbon support 110, prevent the molecular sieves 120 from stacking or agglomerating with each other, and help the molecular sieve 120 to more fully contact the gas to be purified, providing further guarantee for the improvement of the utilization rate of the adsorption material particles 100.

[0077] like Figure 3 and Figure 4 As shown, in some examples, the activated carbon support 110 is formed with a plurality of mesopores, and a portion of the molecular sieve 120 is located in the mesopores; and / or the activated carbon support 110 is formed with a plurality of macropores, and a portion of the molecular sieve 120 is located in the macropores.

[0078] In this technical solution, the activated carbon support 110 can be formed with a plurality of mesopores, and part of the molecular sieve 120 can be arranged in the aforementioned mesopores. In combination with the above, it can be understood that the molecular sieve 120 and the activated carbon support 110 can both be granular structures, and each porous activated carbon support 110 can be provided with a plurality of molecular sieves 120. Based on the above arrangement of the technical solution, part of the molecular sieve 120 can be located on the inner side of the activated carbon support 110, that is, part of the molecular sieve 120 is attached to the pore wall of the aforementioned mesopore, and part of the molecular sieve 120 is attached to the outer surface of the activated carbon support 110, thereby further expanding the molecular sieve 120. 0 is distributed on the activated carbon support 110. During use, if part of the gas to be purified enters the activated carbon support 110 through the aforementioned mesopores, the VOCs, ammonia, sulfide and other substances contained in the gas to be purified can be adsorbed by the activated carbon support 110 and the molecular sieve 120 in the mesopores, thereby improving the overall adsorption performance of the adsorption material particles 100; at the same time, the molecular sieve 120 has a high adsorption efficiency for VOCs, thereby further enhancing the selective adsorption of the adsorption material particles 100 in the mesopore area, improving the utilization rate and adsorption efficiency of the adsorption material particles 100, and being conducive to further improving the gas purification effect.

[0079] Alternatively, the activated carbon support 110 may be formed with a plurality of large pores, and part of the molecular sieve 120 may be arranged in the aforementioned large pores. In combination with the foregoing, it can be understood that the molecular sieve 120 and the activated carbon support 110 may both be granular structures, and each porous activated carbon support 110 may be provided with a plurality of molecular sieves 120. Based on the foregoing arrangement of the technical solution, part of the molecular sieve 120 may be located on the inner side of the activated carbon support 110, that is, part of the molecular sieve 120 is attached to the pore wall of the aforementioned large pores, and part of the molecular sieve 120 is attached to the outer surface of the activated carbon support 110, thereby further expanding the molecular sieve 120 in the activated carbon support. The distribution position on the activated carbon support 110 is such that during use, if part of the gas to be purified enters the interior of the activated carbon support 110 through the aforementioned large holes, the VOCs, ammonia, sulfides and other substances contained in the gas to be purified can be adsorbed by the activated carbon support 110 and the molecular sieve 120 in the large holes, thereby improving the overall adsorption performance of the adsorption material particles 100; at the same time, the molecular sieve 120 has a high adsorption efficiency for VOCs, thereby further enhancing the selective adsorption of the adsorption material particles 100 in the large hole area, improving the utilization rate and adsorption efficiency of the adsorption material particles 100, and facilitating further improvement of the gas purification effect.

[0080] It can be understood that when the activated carbon support 110 is formed with both mesopores and macropores, part of the molecular sieve 120 can be located in the mesopores, and part of the molecular sieve 120 can be located in the macropores, so as to further expand the distribution position of the molecular sieve 120, which is beneficial to enhance the adsorption efficiency and deodorization effect of the adsorption material particles 100.

[0081] It is understood that the activated carbon support 110 is a porous structure, and the sizes of different pores are often different. The aforementioned mesopores refer to pores with a pore size greater than or equal to 2nm and less than 50nm, and the aforementioned macropores refer to pores with a pore size greater than 50nm. Correspondingly, pores with a pore size less than 2nm are called micropores. Therefore, the particle size of the granular molecular sieve 120 can be nanometer-level or micrometer-level, so that the granular molecular sieve 120 can be arranged in the aforementioned mesopores and / or macropores.

[0082] It can be understood that the activated carbon support 110 can also form a plurality of micropores, so that based on the aforementioned setting of the technical solution, the adsorption material particles 100 can further utilize the molecular sieve 120 to enhance the adsorption capacity of the macropores and / or mesopores while retaining the micropore adsorption performance of the activated carbon support 110, thereby more comprehensively enhancing the adsorption selectivity and adsorption efficiency of the adsorption material particles 100, and facilitating the further extension of the service life of the adsorption material particles 100 and reducing the cost of gas purification.

[0083] like Figure 1 and Figure 3As shown, in some examples, the activated carbon support 110 is coal-based columnar activated carbon or coconut shell activated carbon.

[0084] In this technical solution, if Figure 1 and Figure 3 As shown, coal-based columnar activated carbon can be used as the activated carbon support 110. On the one hand, the particle size of the coal-based columnar activated carbon is relatively large, usually between 1.5 mm and 9 mm, so that the adsorption material particles 100 are columnar as a whole and have a relatively large structural size. In practical applications, the convenience of taking and placing the adsorption material particles 100 can be improved, and it is convenient to set the adsorption material particles 100 on the filter of household appliances such as air purifiers and air conditioners, and it is convenient to control the arrangement density of the adsorption material particles 100 on the filter, which is beneficial to improve the production efficiency of the aforementioned household appliances. At the same time, after the use of the adsorption material particles 100, it is also convenient to recycle and process, which is beneficial to improve the convenience of replacing and recycling the adsorption material particles 100; on the other hand, the adsorption capacity cavity of the coal-based columnar activated carbon is beneficial to further improve the adsorption performance of the adsorption material particles 100, which is beneficial to reduce the content of toxic and harmful substances and odor in the gas to be purified during use, and improve the product experience.

[0085] Alternatively, in this technical solution, coconut shell activated carbon can be used as the activated carbon support 110. The particle size of coconut shell activated carbon is relatively small. Therefore, on the one hand, the pores formed on the coconut shell activated carbon are usually small in diameter, which can enhance the adsorption performance of the activated carbon support 110 and further improve the overall adsorption performance of the adsorption material particles 100; on the other hand, in practical applications, the overall particle size of the adsorption material particles 100 can be made smaller, which makes it easier to arrange the adsorption material particles 100 more evenly on the filter of household appliances, which is beneficial to control the distribution uniformity of the adsorption material particles 100 on the filter, thereby improving the purification and deodorization effects of household appliances and improving the user experience of the product.

[0086] In some examples, the molecular sieve 120 includes at least one of a Beta molecular sieve, a USY molecular sieve, and a ZSM-5 molecular sieve.

[0087] In this technical solution, the molecular sieve 120 may include at least one of Beta molecular sieve, USY molecular sieve and ZSM-5 molecular sieve, that is, the molecular sieve 120 may include any one, any two or all of the above three molecular sieves. The Beta molecular sieve, USY molecular sieve and ZSM-5 molecular sieve all have good hydrophobicity, so that during use, the influence of the competitive adsorption phenomenon between water and VOCs in the gas to be purified can be avoided, the adsorption specificity of the adsorption material particles 100 to VOCs can be enhanced, the amount of water adsorbed by the adsorption material particles 100 can be reduced, the influence of the humidity of the gas to be purified on the adsorption performance of the adsorption material particles 100 can be reduced, and the utilization rate of the adsorption material particles 100 can be improved. Among them, Beta molecular sieve has a certain acidity, so it has a good adsorption effect and adsorption speed for alkaline VOCs, ammonia, etc. during use, which is beneficial to further improve the adsorption efficiency and deodorization efficiency of the adsorption material particles 100; USY molecular sieve and ZSM-5 molecular sieve can show strong adsorption effect on sulfides such as hydrogen sulfide, which is also beneficial to improve the adsorption efficiency and deodorization efficiency of the adsorption material particles 100.

[0088] In some examples, molecular sieve 120 is acidic.

[0089] In this technical solution, the molecular sieve 120 can be acidic, that is, the pH value of the molecular sieve 120 is less than 7, so that during use, the adsorption effect and adsorption speed of the molecular sieve 120 on alkaline substances can be further enhanced, and after adsorption, the possibility of desorption of alkaline substances can be reduced through the anchoring effect, which is beneficial to quickly reduce the content of toxic and harmful substances in the gas to be purified while avoiding secondary pollution. It can be understood that the aforementioned alkaline odor substances include but are not limited to alkaline VOCs, ammonia, etc.; accordingly, the adsorption effect and adsorption speed of the molecular sieve 120 on ammonia can also be enhanced, thereby enhancing the deodorization performance of the adsorption material particles 100, which is beneficial to further improve the user experience of the product.

[0090] In some examples, the pH value of molecular sieve 120 is greater than or equal to 3 and less than or equal to 5.

[0091] In this technical solution, the pH value of the molecular sieve 120 is greater than or equal to 3 and less than or equal to 5, so that on the one hand, the molecular sieve 120 can be ensured to be acidic, the adsorption effect and adsorption speed of the molecular sieve 120 on alkaline substances can be enhanced, and the possibility of desorption of alkaline substances can be reduced after adsorption, which is beneficial to quickly reduce the content of toxic and harmful substances in the gas to be purified while avoiding secondary pollution and improving the deodorization effect and deodorization speed of the molecular sieve 120; on the other hand, it can avoid the molecular sieve 120 from being too acidic, which is beneficial in practical applications to reduce the material requirements for the carrier of the adsorption material particles 100, improve the ease of use of the adsorption material particles 100, and help to ensure the stability of the molecular sieve 120. It can be understood that in practical applications, the carrier of the aforementioned adsorption material particles 100 can be the aforementioned filter or deodorizing box, etc.

[0092] In some examples, the mass ratio of the activated carbon support 110 to the molecular sieve 120 is less than or equal to 4 and greater than or equal to 2.

[0093] In this technical solution, the mass ratio of the activated carbon support 110 to the molecular sieve 120 can be less than or equal to 4 and greater than or equal to 2, so that on the one hand, it can ensure that the mass of the activated carbon support 110 is greater than the mass of the molecular sieve 120, so that when the activated carbon support 110 is loaded with the molecular sieve 120, the stability of the molecular sieve 120 can be ensured; on the other hand, it can avoid that the number of molecular sieves 120 is too small, so that the selective adsorption of the molecular sieve 120 can be utilized to more reliably enhance the adsorption targeting of the adsorption material particles 100 to VOCs, ammonia, sulfides and other substances, improve the adsorption efficiency of the adsorption material particles 100 to toxic and harmful substances and odorous substances, improve the utilization rate of the adsorption material particles 100, extend the replacement cycle of the adsorption material particles 100, and reduce the gas purification cost; on the other hand, it can avoid that the number of molecular sieves 120 is too large, which is beneficial to save the material cost of the adsorption material particles 100, and further reduce the gas purification cost.

[0094] In some feasible examples, the mass ratio of the activated carbon support 110 to the molecular sieve 120 is equal to 3.

[0095] like Figure 2 and Figure 4 As shown, in some examples, the adsorption material particles 100 further include: an oxidant disposed in the activated carbon support 110 and / or the molecular sieve 120 .

[0096] In this technical solution, the adsorption material particles 100 may also include an oxidant arranged on the activated carbon support 110, that is, the oxidant may be attached to the surface of the activated carbon support 110, so that part of the surface of the activated carbon support 110 may be loaded with the oxidant, and the activated carbon support 110 may be modified by the aforementioned oxidant. Furthermore, during use, if a part of the area of ​​the activated carbon support 110 loaded with the oxidant adsorbs a substance with stronger activity, the oxidant may be further utilized to anchor the aforementioned substance with stronger activity and promote the oxidation of the aforementioned substance with stronger activity. Furthermore, during use, it is beneficial to further reduce the probability of desorption of the substance adsorbed by the activated carbon support 110 and avoid secondary pollution. Accordingly, it is also beneficial to further enhance the deodorization effect of the adsorption material particles 100 and improve the user experience of the product.

[0097] Alternatively, in this technical solution, the adsorption material particles 100 may also include an oxidant disposed on the molecular sieve 120, that is, the oxidant may be attached to the surface of the molecular sieve 120, so that part of the surface of the molecular sieve 120 may be loaded with the oxidant, and the molecular sieve 120 may be modified by the aforementioned oxidant. Furthermore, during use, if a part of the area of ​​the molecular sieve 120 loaded with the oxidant adsorbs a substance with stronger activity, the oxidant may be further utilized to anchor the aforementioned substance with stronger activity and promote the oxidation of the aforementioned substance with stronger activity. Furthermore, during use, it is beneficial to further reduce the probability of desorption of the substance adsorbed by the molecular sieve 120 and avoid secondary pollution. Accordingly, it is also beneficial to further enhance the deodorization effect of the adsorption material particles 100 and improve the user experience of the product.

[0098] It is understandable that the aforementioned oxidant can be simultaneously provided in the activated carbon support 110 and the molecular sieve 120, so as to utilize the oxidant to modify the activated carbon support 110 and the molecular sieve 120 at the same time, thereby enhancing the anchoring effect of the adsorption material particles 100 on the highly active substances, and being able to utilize the adsorption material particles 100 to oxidize the aforementioned highly active substances, thereby reducing the possibility of secondary pollution and improving the user experience of the product.

[0099] It is understandable that some VOCs are highly active and easily oxidized under the action of oxidants, thereby being converted from toxic, harmful or odorous substances into other substances. At the same time, the injection of inorganic substances such as hydrogen sulfide often also has high activity. Based on the setting of the aforementioned oxidant, the highly active inorganic substances in the gas to be purified can also be treated, which is beneficial to reduce the content of toxic and harmful substances and odorous substances in the gas to be purified.

[0100] It should be noted that, combined with the above-mentioned setting of the adsorption material particles 100, the adsorption material particles 100 can have a rich microporous structure, and when the activated carbon support 110 and the molecular sieve 120 included in the adsorption material particles 100 are hydrophobic, by further loading the activated carbon support 110 and / or the hydrophobic molecular sieve 120 with an oxidant, the adsorption material particles 100 can quickly take effect on low-concentration odors, and target the removal of odorous gases such as ammonia, methyl mercaptan, trimethylamine, and hydrogen sulfide. The adsorption has a short onset time and a rapid reaction. After adsorption, the possibility of odor recurrence is reduced by relying on the micropore potential, and the odor molecules are partially decomposed by the oxidant.

[0101] It should be noted that Figure 2 and Figure 4 Here, ROx is used to schematically represent an oxidant.

[0102] In some examples, the oxidant is loaded on the outer surface and / or pore wall of the activated carbon support 110 ; and / or the oxidant is loaded on the outer surface and / or pore wall of the molecular sieve 120 .

[0103] In this technical solution, the oxidant can be arranged on the outer surface and / or pore wall of the activated carbon support 110, that is, the oxidant can be distributed on the outer surface or in the pores of the activated carbon support 110, so that based on the above-mentioned arrangement, it is convenient for the oxidant to contact with the gas to be purified, and when the activated carbon support 110 adsorbs harmful substances or odorous substances, the oxidant can more quickly anchor and oxidize the above-mentioned harmful substances and odorous substances, thereby increasing the speed at which the adsorption material particles 100 take effect on odors, and reducing the possibility of desorption of harmful substances or odorous substances, which is beneficial to further improve the purification effect of the adsorption material particles 100.

[0104] Alternatively, the oxidant can be set on the outer surface and / or pore wall of the molecular sieve 120, that is, the oxidant can be distributed on the outer surface or in the pores of the molecular sieve 120, so that based on the above-mentioned setting, the oxidant is convenient for contacting with the gas to be purified, and when the molecular sieve 120 adsorbs harmful substances or odorous substances, the oxidant can more quickly anchor and oxidize the aforementioned harmful substances and odorous substances, thereby increasing the speed at which the adsorption material particles 100 take effect on odors, and reducing the possibility of desorption of harmful substances or odorous substances, which is beneficial to further improve the purification effect of the adsorption material particles 100.

[0105] It should be noted that the outer surface of the activated carbon support 110, the pore wall of the activated carbon support 110, the outer surface of the molecular sieve 120 and the pore wall of the molecular sieve 120 can all be provided with an oxidant, or one, two or three of them can be provided with an oxidant. It can be understood that as the number of locations where the oxidant is set increases, the distribution range and action range of the oxidant will also be larger, and the purification performance and onset speed of the adsorption material particles 100 can be further enhanced.

[0106] In some examples, the oxidizing agent includes at least one of a periodate, a transition metal oxide, and chlorine dioxide.

[0107] In this technical solution, the oxidant may include at least one of periodate, transition metal oxide and chlorine dioxide. Periodate, transition metal oxide and chlorine dioxide all have strong oxidizing properties. Therefore, using at least one of periodate, transition metal oxide and chlorine dioxide as an oxidant can enhance the anchoring effect of the adsorbent material particles 100 on the highly active substances in the gas to be purified after the adsorbent material particles 100 adsorb the aforementioned highly active substances, and promote the oxidation reaction of the aforementioned highly active substances, thereby reducing the risk of secondary pollution, which is beneficial to further reduce the content of toxic and harmful substances and odorous substances in the gas to be purified, and improve the user experience of the product.

[0108] In some examples, the ratio of the mass of the molecular sieve 120 to the mass of the oxidant is greater than or equal to 5 and less than or equal to 100.

[0109] In this technical solution, the mass ratio of the molecular sieve 120 to the oxidant is constrained, so that the oxidant content of the adsorption material particles 100 and the content ratio of the oxidant to the molecular sieve 120 can be limited. On the one hand, it can avoid the adsorption material particles 100 containing too little oxidant, which is beneficial to ensure the anchoring effect of the adsorption material particles 100 on the aforementioned highly active substances, and promote the oxidation reaction of the aforementioned highly active substances, thereby reducing the risk of secondary pollution; on the other hand, it can also avoid the adsorption material particles 100 containing too much oxidant, which is beneficial to reduce the production cost of the adsorption material particles 100, and can further reduce the gas purification cost while ensuring the adsorption performance of the adsorption material particles 100; on the other hand, with the cooperation of the molecular sieve 120 and the oxidant, the adsorption targeting of the adsorption material particles 100 to harmful substances and odorous substances can be improved, and the onset speed of the adsorption material particles to low-concentration odors can be increased, which is beneficial to further enhance the odor removal effect and purification effect of the adsorption material particles 100.

[0110] In some possible examples, the ratio of the mass of the molecular sieve 120 to the mass of the oxidant is equal to ten.

[0111] In order to facilitate the production of the adsorption material particles 100 provided in the embodiment of the present application in practical applications, a feasible method for preparing the adsorption material particles 100 is exemplarily proposed, including: adding Xg of oxidant to Wg of water to form a solution J, wherein the oxidant is periodate; adding Yg of molecular sieve 120 to the solution J, and stirring at room temperature for 12 hours to form a suspension K, wherein the molecular sieve 120 is a Beta molecular sieve, X:Y:W=1:10:30, so that the oxidant can be more evenly attached to the surface of the molecular sieve 120; adding Zg of activated carbon support 110 to the suspension K, and stirring at room temperature for 12 hours to form a suspension L, wherein the activated carbon support 110 is a hydrophobic columnar activated carbon, Z:Y=3:1, so that the oxidant and the molecular sieve 120 can be more evenly attached to the surface of the activated carbon support 110; filtering the suspension L to obtain the adsorption material particles 100. The adsorption material particles 100 prepared according to the above process are set on the filter, and an ammonia adsorption test is carried out under the conditions of 25°C and RH (Relative Humidity) 50%. The test time is 15 minutes. It is found that the ammonia removal rate of the filter provided with the adsorption material particles 100 can reach 86.32%; under the same conditions, the ammonia removal rate of the polyurethane-based activated carbon honeycomb cotton filter is 30.12%; under the same conditions, the ammonia removal rate of the filter provided with columnar activated carbon is 42.34%; it can be seen that the adsorption material particles 100 provided in the embodiment of the present application have high adsorption performance and adsorption efficiency, and can perform targeted adsorption on substances such as ammonia and VOCs, and have a high utilization rate.

[0112] like Figures 5 to 7 As shown, according to the second aspect of an embodiment of the present application, an air purification component is proposed, comprising: a first filter 200, for filtering particulate matter in the gas; a second filter 300, arranged on one side of the first filter; and adsorption material particles 100 as proposed in any one of the above-mentioned first aspects, arranged on the second filter.

[0113] The air purification component provided in the embodiment of the present application includes a first filter 200 and a second filter 300, wherein the second filter 300 is arranged on one side of the first filter 200, wherein the first filter 200 is used to filter particulate matter in the gas, such as floating dust carried in the air; the aforementioned adsorption material particles 100 can be arranged on the second filter 300, so that the second filter 300 can be used to carry the adsorption material particles, and when the gas to be purified flows through the second filter 300, the adsorption material particles 100 are used to adsorb substances contained in the gas to be purified that are smaller in size than the aforementioned particulate matter, such as VOCs, ammonia, sulfides and other toxic and harmful substances and odorous substances, thereby improving the purification ability and deodorization ability of the air purification component.

[0114] It is understandable that if Figures 5 to 7 As shown, the second filter 300 can be connected to one side of the first filter 200, so that in actual application, the gas to be purified can pass through the first filter 200 and the second filter 300 in sequence, and then the air purification component can filter the gas at more levels.

[0115] It is understandable that if Figure 6 and Figure 7 As shown, the second filter screen 300 may be a mesh structure, and the adsorption material particles 100 may be disposed on the surface of the second filter screen 300 or in the holes of the second filter screen 300 .

[0116] Therefore, based on the aforementioned configuration, the air purification component provided in the embodiment of the present application can be arranged in an air purification device or as a component of an air purification device in actual applications. Taking the air purification component as a component of an air purification device as an example, the air purification component can be arranged in the air duct of the air purification device, and the first filter 200 can be located between the second filter 300 and the air inlet end of the air purification device. When the gas flows into the air purification device from the aforementioned air inlet end, it can flow through the first filter 200 and the second filter 300 in sequence to purify the gas by using the first filter 200, the second filter 300 and the adsorption material particles 100.

[0117] It can be understood that the aforementioned air purification device can have an air inlet end, an air outlet end and an air duct, and the aforementioned air inlet end and air outlet end are both connected to the air duct. During use, the gas to be purified can flow into the air duct from the aforementioned air inlet end, and then flow out of the air purification device through the aforementioned air outlet end after being purified by the air purification component.

[0118] When the gas to be purified flows through the first filter 200, the particulate matter carried by the gas to be purified can be filtered out by the first filter 200 to reduce the content of particulate matter carried in the gas to be purified; when the gas flows through the second filter 300, the adsorption material particles 100 can be used to adsorb toxic and harmful substances and odor substances such as VOCs, ammonia, sulfides, etc. contained in the gas, thereby reducing the content of toxic and harmful substances and odor substances in the gas to be purified and reducing the odor in the gas to be purified.

[0119] In some feasible examples, the first filter 200 can be a HEPA (High Efficiency Particulate Air) filter, which is beneficial to ensure the filtering effect of the first filter 200 on particulate matter in the gas to be purified, improve the quality of the purified gas, and enhance the purification efficiency of the air purification component, thereby improving the user experience of the product.

[0120] Exemplarily, the aforementioned HEPA filter may include a PET (Polyethylene glycol Terephthalate) layer and a PP (Polypropylene) layer. The PET layer may serve as the skeleton structure of the HEPA filter to provide structural support. The PP layer is disposed on the PET layer and may be used to filter particulate matter in the gas. In actual applications, the PP layer and the PET layer may be pleated together to form a multi-layer folded structure.

[0121] like Figure 6 and Figure 7 As shown, in some feasible examples, the second filter 300 may be an aluminum honeycomb.

[0122] It can be understood that the aforementioned aluminum honeycomb, that is, the aluminum honeycomb panel, has multiple pores, so that the aluminum honeycomb has good gas permeability, which can facilitate the circulation of the gas to be purified during use, improve the gas passing efficiency of the air purification component, and help to further improve the gas purification efficiency of the air purification component; the aforementioned adsorption material particles 100 can be arranged in the pores of the aluminum honeycomb. When gas passes through the aforementioned pores, the adsorption material particles 100 can contact the gas, and then adsorb toxic and harmful substances and odor substances in the gas to achieve gas purification.

[0123] In some feasible examples, the second filter screen 300 may be fiber paper.

[0124] It can be understood that the fiber paper has a strong filtering property, so during use, it can cooperate with the first filter 200 to further filter the particulate matter in the gas to be purified, which is beneficial to improve the quality of the gas after filtration; the aforementioned adsorption material particles 100 can be arranged on the surface of the fiber paper. When the gas flows through the fiber paper, the adsorption material particles 100 can contact the gas, and then adsorb the toxic and harmful substances and odor substances in the gas to achieve gas purification.

[0125] In addition, since the air purification component provided in the embodiment of the present application includes the adsorption material particles 100 as proposed in any one of the first aspects above, it has all the beneficial effects of the adsorption material particles 100, which will not be elaborated here.

[0126] According to the third aspect of the embodiment of the present application, an air purification device is proposed, including: a shell, formed with an air inlet end, an air outlet end and an air duct, the air inlet end and the air outlet end are both connected to the air duct; an air purification component as proposed in any one of the above-mentioned second aspects is arranged in the shell and located in the air duct.

[0127] The air purification device provided in the embodiment of the present application may include a housing and an air purification component as provided in any one of the second aspects above, wherein the housing is formed with an air inlet, an air outlet and an air duct, the air inlet and the air outlet are both connected to the air duct, the air purification component is arranged in the air duct, and during use, the gas to be purified can flow into the air duct from the air inlet, and then flow out of the air purification device through the air outlet after being purified by the air purification component.

[0128] It can be understood that the first filter 200 can be located between the second filter 300 and the air inlet end of the air purification device. When the gas flows into the air purification device from the aforementioned air inlet end, it can flow through the first filter 200 and the second filter 300 in sequence to purify the gas using the first filter 200, the second filter 300 and the adsorption material particles 100.

[0129] In some feasible examples, the air purification device may further include an air supply device, which may be disposed in the aforementioned air duct for supplying air toward the aforementioned air outlet end, thereby facilitating improvement of the gas circulation efficiency of the air purification device, and further improving the purification efficiency.

[0130] In addition, since the air purification device provided in the embodiment of the present application includes an air purification component as proposed in any one of the second aspects above, it has all the beneficial effects of the air purification component, which will not be elaborated here.

[0131] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0132] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0133] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0134] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adsorbent particle, characterized in that: include: An activated carbon support, wherein the activated carbon support is a porous structure; The molecular sieve is arranged on the activated carbon support.

2. The adsorbent particle according to claim 1, characterized in that The molecular sieve is a hydrophobic molecular sieve.

3. The adsorbent particle according to claim 1, characterized in that The water contact angle of the activated carbon support and / or the molecular sieve is greater than or equal to 90°; and / or The water absorption rate of the activated carbon support and / or the molecular sieve is less than or equal to 30%.

4. The adsorbent particle according to claim 1, characterized in that: The specific surface area of ​​the activated carbon support is greater than or equal to 600m 2 / g.

5. The adsorbent particle according to claim 1, characterized in that: At least a portion of the molecular sieve is attached to the outer surface of the activated carbon support.

6. The adsorbent particle according to claim 5, characterized in that The molecular sieve accounts for a weight percentage of the adsorption material particles that is greater than or equal to 2% and less than or equal to 25%.

7. The adsorbent particle according to claim 5, characterized in that: The activated carbon support is formed with a plurality of mesopores, and part of the molecular sieve is located in the mesopores; and / or The activated carbon support is formed with a plurality of large pores, and a portion of the molecular sieve is located in the large pores.

8. The adsorbent particle according to claim 1, characterized in that: The activated carbon support is coal-based columnar activated carbon or coconut shell activated carbon.

9. The adsorbent particle according to claim 1, characterized in that: The molecular sieve includes at least one of Beta molecular sieve, USY molecular sieve and ZSM-5 molecular sieve.

10. The adsorbent particle according to claim 1, characterized in that: The molecular sieve is acidic.

11. The adsorbent particle according to claim 10, characterized in that The pH value of the molecular sieve is greater than or equal to 3 and less than or equal to 5.

12. The adsorbent particle according to claim 1, characterized in that The mass ratio of the activated carbon support to the molecular sieve is less than or equal to 4 and greater than or equal to 2.

13. The adsorbent particle according to any one of claims 1 to 12, characterized in that Also includes: The oxidant is arranged on the activated carbon support and / or the molecular sieve.

14. The adsorbent particle according to claim 13, characterized in that The oxidant is disposed on the outer surface and / or pore wall of the activated carbon support; and / or The oxidant is disposed on the outer surface and / or pore wall of the molecular sieve.

15. The adsorbent particle according to claim 13, characterized in that The oxidizing agent includes at least one of periodate, transition metal oxide, and chlorine dioxide.

16. The adsorbent particle according to claim 13, characterized in that The ratio of the mass of the molecular sieve to the mass of the oxidant is greater than or equal to 5 and less than or equal to 100.

17. An air purification component, characterized in that: include: The first filter is used to filter particulate matter in the gas; a second filter screen, disposed on one side of the first filter screen; The adsorbent material particles according to any one of claims 1 to 16, arranged on the second filter screen.

18. An air purification device, characterized in that: include: The housing is formed with an air inlet, an air outlet and an air duct, wherein the air inlet and the air outlet are both connected to the air duct; The air purification component as described in claim 17 is arranged in the shell and located in the air duct.

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