Multi-pole quantum peculiar smell removing device and method

Abstract

The invention discloses a multipolar quantum peculiar smell removing device and method.The device comprises a shell, an air inlet and an air outlet are oppositely formed in the shell, a filter screen, a first photocatalytic plate, an ultraviolet lamp, a second photocatalytic plate and a fan are sequentially arranged in the shell in the air direction, and the fan is connected to the air outlet. The surfaces of the first photocatalytic plate and the second photocatalytic plate are rough surfaces and are provided with photocatalytic coatings, and the photocatalytic coatings comprise at least three photocatalysts. The peculiar smell removing device is high in purification efficiency, long in service life and capable of effectively removing harmful substances and various peculiar smell molecules in air.

Description

Technical Field

[0001] The invention belongs to the field of odor elimination, and specifically relates to a multipolar quantum odor removal device and method. Background Art

[0002] With the improvement of living standards, people are paying more and more attention to health issues. As one of the important factors affecting human health, indoor air quality is increasingly valued by consumers. Especially for families with elderly people, children or those suffering from respiratory diseases, it is particularly important to keep the indoor air fresh and pollution-free. Therefore, air purifiers, as a device that can effectively remove indoor air pollutants, are gradually favored by consumers.

[0003] Photocatalytic technology is a technology that uses light energy to excite electrons on the surface of a catalyst to produce a redox reaction. In the field of air purifiers, photocatalytic technology has unique advantages. First, photocatalytic technology can decompose harmful gases and microorganisms in the air and convert them into harmless substances such as carbon dioxide and water. Secondly, photocatalytic technology has the advantages of high efficiency, no secondary pollution, and low energy consumption. However, existing photocatalytic purifiers have the problem of low purification efficiency due to the single photocatalytic material.

[0004] Photocatalytic technology can also be combined with other air purification technologies, such as high-efficiency filtration technology, ultraviolet disinfection technology, etc., to form a composite air purification system to further improve the air purification effect. Activated carbon is a carbon material with a developed pore structure, a large specific surface area and abundant surface chemical groups. It is a carbon material with strong adsorption capacity and is often used with purifiers to adsorb indoor formaldehyde. However, conventional activated carbon will absorb a large amount of water while adsorbing, resulting in a sharp decrease in the adsorption capacity for other harmful substances. Therefore, the activated carbon needs to be replaced frequently.

[0005] Therefore, it is particularly important to develop a photocatalytic air purifier with high adsorption capacity and high purification efficiency. Summary of the invention

[0006] The purpose of the present invention is to disclose a multipolar quantum odor removal device and method, which are used to solve the problems existing in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A multipolar quantum odor removal device comprises a shell, an air inlet and an air outlet are arranged opposite to each other on the shell, a filter, a first photocatalytic plate, an ultraviolet lamp, a second photocatalytic plate, and a fan are arranged in sequence inside the shell along the wind direction, and the fan is connected to the air outlet. It is characterized in that the surfaces of the first and second photocatalytic plates are rough surfaces and are provided with photocatalytic coatings, and the photocatalytic coatings contain at least three photocatalysts.

[0008] As a further improvement of the present invention, the photocatalyst includes a metal organic framework UIO-66, and any two or more of the metal oxides BiOI, Bi2O3, and ZnO. The above metal oxides are loaded on UIO-66 to form a heterojunction, which can enhance the mobility of electrons, reduce the recombination of photogenerated electrons and holes in the photocatalyst, and improve the quantum yield of the photocatalyst. The increase in quantum yield symbolizes the improvement in the utilization rate of the photocatalyst and also increases the decomposition rate of pollutants.

[0009] As a further improvement of the present invention, the filter is provided with an interlayer, in which super-hydrophobic activated carbon is placed. The super-hydrophobic activated carbon is used to pre-adsorb harmful substances in the air while isolating water vapor.

[0010] As a further improvement of the present invention, the super-hydrophobic activated carbon includes activated carbon and a layer of super-hydrophobic film wrapped on the outer surface of the activated carbon.

[0011] As a further improvement of the present invention, the hydrophobic activated carbon is prepared by the following steps: (1) Pretreatment of activated carbon; (2) adding 0.01-0.5 parts by mass of a surfactant, 1-2 parts by mass of a hydrophobic polymer, 3-4 parts by mass of ethylenediamine having a mass fraction of 25%-28%, and 1-3 parts by mass of silica sol to 150 parts by mass of water, mixing them evenly, and then adding 0.2-0.4 parts by mass of propyltrimethoxysilane thereto, stirring them thoroughly to obtain a solution A; the hydrophobic polymer is at least one of polydimethylsiloxane, polytetrafluoroethylene, and polyvinylidene fluoride copolymer; (3) Add the activated carbon pretreated in step (1) to solution A, stir thoroughly, filter and dry to obtain super hydrophobic activated carbon.

[0012] As a further improvement of the present invention, in step (1), the pretreatment is: heating the activated carbon at a temperature not lower than 120° C. for 5 to 8 hours until the quality is stable, so as to remove the moisture and impurities contained therein.

[0013] As a further improvement of the present invention, in step (2), the surfactant is polyoxyethylene alkylamine or polyoxyethylene alkylamide.

[0014] A method for removing odor. When the device is started, air enters from the air inlet, and the filter screen filters the dust impurities in the air. At the same time, the hydrophobic activated carbon in the filter screen pre-adsorbs VOCs in the air. After passing through the filter screen, the air is irradiated by an ultraviolet lamp, and the first and second photocatalytic plates photocatalytically degrade the air to remove the remaining odor, odor and organic and inorganic pollutants in the air, and decompose them into water and carbon dioxide that are harmless to the human body, and then lead them out through the air outlet to achieve the purpose of purifying the air.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a multi-pole quantum odor removal device and method. The device mainly purifies the air through a filter screen, a first photocatalytic plate, a second photocatalytic plate and an ultraviolet lamp. Super-hydrophobic activated carbon is placed in the interlayer of the filter screen. The super-hydrophobic modified activated carbon increases its service life and increases the adsorption capacity of harmful substances. The super-hydrophobic activated carbon can greatly reduce the adsorption of water vapor, thereby increasing its adsorption capacity for other harmful substances, even under extremely high humidity conditions. Harmful substances in the air can still be effectively adsorbed for a long time. After the air is pre-filtered by the filter and the super-hydrophobic activated carbon, it contacts the first and second photocatalytic plates. Under the irradiation of ultraviolet light, the photocatalyst forming a heterojunction on the photocatalytic plate can increase the generation and transfer of photogenerated electrons and holes, and then can more quickly undergo redox reactions with odorous substances in the air, so that the odorous substances are converted into products such as carbon dioxide and water. The odor removal device provided by the present invention has high efficiency and long service life, and effectively removes harmful substances and various odor molecules in the air, providing a new solution for indoor purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional diagram of the odor removal device of the present invention; Figure 2 is a three-dimensional diagram of the interior of the odor removal device of the present invention (1); Figure 3 is a three-dimensional diagram of the interior of the odor removal device of the present invention (2); Figure 4 This is a comparison diagram of the activated carbon before and after modification of the present invention. Figure 5 It is the fluorescence spectrum of the ternary composite photocatalyst of Bi2O3, BiOI, UiO-66 and Bi2O3@BiOI@UiO-66 in the present invention; Figure 6 This is a diagram of the photocatalytic mechanism of the Bi2O3@BiOI@UiO-66 ternary composite photocatalyst in the present invention.

[0017] In the figure: 1. housing, 2. filter, 3. fan, 4. ultraviolet lamp, 5. photocatalytic plate, 5-1 first photocatalytic plate, 5-2 second photocatalytic plate, 6. ballast, 7. intelligent control switch DETAILED DESCRIPTION

[0018] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0019] With the development of economy and the progress of society, the indoor environment has undergone tremendous changes. Due to poor ventilation and the release of chemicals from decorative materials, a large amount of pollutants such as formaldehyde, benzene, ammonia and other toxic gases and dust have accumulated indoors, posing a threat to people's health. Most pollutants are transmitted through the air and cause harm to the human body through breathing and skin. Therefore, improving indoor air quality has become a research hotspot.

[0020] Based on the above situation, the present invention discloses a multi-pole quantum odor removal device and method, such as Figure 1-Figure 3 As shown, the device includes a housing 1, a filter 2, a fan 3, a pair of ultraviolet lamps 4, a pair of photocatalytic plates 5, a ballast 6, and an intelligent remote control switch 7. Super-hydrophobic activated carbon is filled in the filter interlayer.

[0021] The intelligent remote control switch 7 is arranged at the top of the housing and is used to turn on or off the odor removal device; Among them, the housing 1 is provided with an air inlet and an air outlet opposite to each other, and the housing 1 is provided with a filter 2, a first photocatalytic plate 5-1, an ultraviolet lamp 4, a second photocatalytic plate 5-2, and a fan 3 in sequence along the wind direction, and the fan 3 is connected to the air outlet, and the surfaces of the first and second photocatalytic plates 5-2 are rough surfaces, and are provided with a photocatalytic coating, and the photocatalytic coating contains at least three photocatalysts. The surfaces of the first and second photocatalytic plates 5-2 are provided with a rough surface, and the purpose is to increase the contact area between the first and second photocatalytic plates 5-2 and the air, so as to purify the air more efficiently.

[0022] The photocatalyst includes a metal organic framework UIO-66, and any two or more of the metal oxides BiOI, Bi2O3, and ZnO. The above metal oxides are loaded on UIO-66 to form a heterojunction, which can enhance the mobility of photogenerated electrons, reduce the recombination of photogenerated electrons and holes in the photocatalyst, and increase the photogenerated electron and hole yields of the photocatalyst. The increase in the photogenerated electron and hole yields symbolizes the improvement in the utilization rate of the photocatalyst and also increases the decomposition rate of pollutants.

[0023] The filter 2 is provided with an interlayer in which super-hydrophobic activated carbon is placed. The super-hydrophobic activated carbon is used to pre-adsorb harmful substances in the air while isolating water vapor. In order to facilitate the cleaning of the filter 2, the filter material is selected to be metal or hard plastic such as PP, PE, ABS, etc.

[0024] The super hydrophobic activated carbon comprises activated carbon and a layer of super hydrophobic film wrapped on the outer surface of the activated carbon.

[0025] The super hydrophobic activated carbon is prepared by the following steps: (1) Pre-treating the activated carbon, which includes heating the activated carbon at a temperature not lower than 120°C for 5 to 8 hours until the quality is stable, in order to remove the moisture and impurities contained therein; (2) Add 0.01-0.5 parts by mass of a surfactant, 1-2 parts by mass of a hydrophobic polymer, 3-4 parts by mass of ethylenediamine with a mass fraction of 25%-28%, and 1-3 parts by mass of silica sol to 150 parts by mass of water, mix them evenly, then add 0.2-0.4 parts by mass of propyltrimethoxysilane, and stir them thoroughly to obtain solution A; the hydrophobic polymer is at least one of polydimethylsiloxane, polytetrafluoroethylene, and polyvinylidene fluoride copolymer; the silica sol used in the present invention is spherical, with a particle size of 4-7 nm and a solid content of 15%; (3) Add the activated carbon pretreated in step (1) to solution A, stir thoroughly, filter and dry to obtain super hydrophobic activated carbon.

[0026] Ordinary columnar activated carbon with a particle size of 4-6 mm can be selected for superhydrophobic modification.

[0027] Furthermore, in step (2), the surfactant is polyoxyethylene alkylamine or polyoxyethylene alkylamide.

[0028] According to the above-mentioned odor removal device, the present invention proposes an odor removal method, in which the intelligent remote control switch 7 is turned on, the device is started, air enters from the air inlet, the filter 2 filters the dust impurities in the air, and at the same time, the super-hydrophobic activated carbon in the filter 2 pre-adsorbs the Vocs and other harmful substances in the air. After passing through the filter 2, the air is irradiated by the ultraviolet lamp, and the first and second photocatalytic plates 5-2 photocatalytically degrade the air to remove the remaining odor, odor and organic and inorganic pollutants in the air, and decompose them into water and carbon dioxide that are harmless to the human body, and then lead them out through the air outlet to achieve the purpose of purifying the air.

[0029] Example 1 The present invention discloses a multipolar quantum odor removal device and method, the device comprises a housing 1, an air inlet and an air outlet are arranged opposite to each other on the housing 1, a filter 2, a first photocatalytic plate 5-1, an ultraviolet lamp 4, a second photocatalytic plate 5-2, and a fan 3 are arranged in sequence inside the housing 1 along the wind direction, the fan 3 is connected to the air outlet, the surface of the first and second photocatalytic plates 5-2 is a rough surface, and a photocatalytic coating is arranged, and the photocatalytic coating contains at least three photocatalysts. The surface of the first and second photocatalytic plates 5-2 is set as a rough surface, the purpose of which is to increase the contact area between the first and second photocatalytic plates 5-2 and the air, so as to purify the air more efficiently.

[0030] The ultraviolet lamp 4 adopts a 12V integrated ultraviolet LED light strip with a wavelength range of 200nm~550nm.

[0031] The photocatalyst includes the metal organic framework UIO-66, and the metal oxides BiOI and Bi2O3. The above metal oxides are loaded on UIO-66 to form a heterojunction, which can enhance the mobility of electrons, reduce the recombination of photogenerated electrons and holes in the photocatalyst, and increase the yield of photogenerated electrons and holes in the photocatalyst. The increase in the yield of photogenerated electrons and holes symbolizes the improvement of the utilization rate of the photocatalyst and also increases the decomposition rate of pollutants.

[0032] The filter 2 is provided with an interlayer in which super-hydrophobic activated carbon is placed. The super-hydrophobic activated carbon is used to pre-adsorb harmful substances in the air while isolating water vapor. In order to facilitate the cleaning of the filter 2, the material of the filter 2 is selected to be metal or hard plastic such as PP, PE, ABS, etc.

[0033] The super hydrophobic activated carbon comprises activated carbon and a layer of super hydrophobic film wrapped on the outer surface of the activated carbon.

[0034] The super hydrophobic activated carbon is prepared by the following steps: (1) Pre-treating the activated carbon, wherein the pre-treatment is to heat the activated carbon at 120°C for 5 hours until the quality is stable, in order to remove the moisture and impurities contained therein; (2) Add 0.01 parts by mass of polyoxyethylene alkylamine, 1 part by mass of polydimethylsiloxane copolymer, 3 parts by mass of ethylenediamine with a mass fraction of 25%-28%, and 1 part by mass of silica sol to 150 parts by mass of water, mix well, add 0.2 parts by mass of propyltrimethoxysilane, and stir thoroughly to obtain solution A; (3) Add the activated carbon pretreated in step (1) to solution A, stir thoroughly, filter and dry to obtain super hydrophobic activated carbon.

[0035] Ordinary columnar activated carbon with a particle size of 4-6 mm can be selected for superhydrophobic modification.

[0036] Table 1 shows the specific surface area and pore structure of superhydrophobic activated carbon. It can be seen from the table that compared with the BET area of ​​ordinary activated carbon, the BET specific surface area of ​​superhydrophobic modified activated carbon has not decreased significantly, but only decreased by 15%. Combined with the pore size distribution, superhydrophobic activated carbon basically retains the adsorption performance of the original activated carbon under dry conditions.

[0037] like Figure 4 As shown, Figure 4 This is a comparison chart of activated carbon before and after super-hydrophobic modification, where Figure 4 (a) is ordinary activated carbon, Figure 4 (b) is superhydrophobic activated carbon; it can be clearly seen from the figure that after superhydrophobic modification, the hydrophobic properties of activated carbon are improved, which can greatly isolate water vapor, thereby increasing the adsorption effect on other harmful substances.

[0038] While reducing the BET specific surface area, the activated carbon obtains stronger hydrophobicity, which means that it can more effectively adsorb the target substance and show higher adsorption selectivity. Therefore, the super hydrophobic activated carbon prepared in this embodiment can effectively complete the adsorption of volatile organic compounds in a high humidity environment;

[0039] like Figure 5 As shown, Figure 5 The fluorescence diagram of the photocatalyst shows that each material has an emission peak at around 648nm. The higher the emission peak, the easier it is for the photogenerated electrons to be excited and transition. The emission peak intensity of Bi2O3@BiOI@UiO-66 is very high, which indicates that the electrons are easily excited. UiO-66 is a medium for electron transmission. The excited photogenerated electrons can be conducted in time and the recombination of electron-hole pairs can be effectively suppressed, indicating that the photocatalytic efficiency of the Bi2O3@BiOI@UiO-66 ternary composite photocatalyst is high. This further indicates that the degradation efficiency of VOCs and other harmful substances in the air is also high.

[0040] like Figure 6 As shown, Figure 6 The photocatalytic mechanism of the Bi2O3@BiOI@UiO-66 ternary composite photocatalyst is demonstrated. By adding UiO-66, it can be combined with BiOI pairs and Bi2O3 semiconductors to enrich and conduct electron-hole pairs generated by the photocatalyst, thus improving the effect of electron transition.

[0041] from Figure 6It can be seen that the bandgap of Bi2O3@BiOI composite materials is smaller than that of Bi2O3 and BiOI monomers, that is, the energy level that electrons need to overcome for transition is lower, so more electron-hole pairs can be generated after the composite material is used. When UiO-66 is used as a carrier for composite, although the bandgap of Ui0-66 is large and the conduction band is high, its porosity and stability improve the surface of the catalyst, stably and effectively migrate excited electrons to the surface, and the holes distributed on the surface effectively form various redox reaction centers, improving the photocatalytic performance of the material.

[0042] According to the above-mentioned odor removal device, the present invention proposes an odor removal method, in which the intelligent remote control switch 7 is turned on, the device is started, air enters from the air inlet, the filter 2 filters the dust impurities in the air, and at the same time, the super-hydrophobic activated carbon in the filter 2 pre-adsorbs the Vocs and other harmful substances in the air. After passing through the filter 2, the air is irradiated by the ultraviolet lamp 4, and the first and second photocatalytic plates 5-2 photocatalytically degrade the air to remove the remaining odor, odor and organic and inorganic pollutants in the air, and decompose them into water and carbon dioxide that are harmless to the human body, and then lead them out through the air outlet to achieve the purpose of purifying the air.

[0043] The above-mentioned super-hydrophobic activated carbon isolates water vapor, thereby increasing the adsorption capacity for other substances, which not only prolongs the service life but also improves the adsorption efficiency.

[0044] In addition, since Bi2O3@BiOI@UiO-66 ternary composite photocatalyst is used on the first and second photocatalytic plates 5-2, the degradation of harmful and unpleasant gases such as odors is greatly improved, and the ability to purify indoor air is greatly improved. The combination of superhydrophobic activated carbon and the above-mentioned photocatalytic plates can quickly and efficiently purify indoor air, ensuring that people breathe healthy air.

[0045] Example 2 The present invention discloses a multipolar quantum odor removal device and method, the device comprises a housing 1, an air inlet and an air outlet are arranged opposite to each other on the housing 1, a filter 2, a first photocatalytic plate 5-1, an ultraviolet lamp 4, a second photocatalytic plate 5-2, and a fan 3 are arranged in sequence inside the housing 1 along the wind direction, the fan 3 is connected to the air outlet, the surface of the first and second photocatalytic plates 5-2 is a rough surface, and a photocatalytic coating is provided, and the photocatalytic coating contains at least three photocatalysts. The surface of the first and second photocatalytic plates 5-2 is set as a rough surface, the purpose of which is to increase the contact area between the first and second photocatalytic plates 5-2 and the air, so as to purify the air more efficiently. The ultraviolet lamp adopts a 12V integrated ultraviolet LED light strip with a wavelength range of 200nm~550nm.

[0046] The photocatalyst includes the metal organic framework UIO-66, and the metal oxides BiOI and ZnO. The above metal oxides are loaded on UIO-66 to form a heterojunction, which can enhance the mobility of electrons, reduce the recombination of photogenerated electrons and holes in the photocatalyst, and increase the yield of photogenerated electrons and holes in the photocatalyst. The increase in the yield of photogenerated electrons and holes symbolizes the improvement of the utilization rate of the photocatalyst and also increases the decomposition rate of pollutants.

[0047] The filter 2 is provided with an interlayer in which super-hydrophobic activated carbon is placed. The super-hydrophobic activated carbon is used to pre-adsorb harmful substances in the air while isolating water vapor. In order to facilitate the cleaning of the filter 2, the material of the filter 2 is selected to be metal or hard plastic such as PP, PE, ABS, etc.

[0048] The super hydrophobic activated carbon comprises activated carbon and a layer of super hydrophobic film wrapped on the outer surface of the activated carbon.

[0049] The super hydrophobic activated carbon is prepared by the following steps: (1) Pre-treating the activated carbon, wherein the pre-treatment is to heat the activated carbon at 120°C for 6 hours until the quality is stable, in order to remove the moisture and impurities contained therein; (2) Add 0.5 parts by mass of polyoxyethylene alkylamide, 2 parts by mass of polytetrafluoroethylene copolymer, 4 parts by mass of ethylenediamine with a mass fraction of 25%-28%, and 3 parts by mass of silica sol to 150 parts by mass of water, mix well, add 0.4 parts by mass of propyltrimethoxysilane, and stir thoroughly to obtain solution A; (3) Add the activated carbon pretreated in step (1) to solution A, stir thoroughly, filter and dry to obtain super hydrophobic activated carbon.

[0050] According to the above-mentioned odor removal device, the present invention proposes an odor removal method, in which the intelligent remote control switch 7 is turned on, the device is started, air enters from the air inlet, and the filter 2 filters the dust impurities in the air. At the same time, the super-hydrophobic activated carbon in the filter 2 pre-adsorbs Vocs and other harmful substances in the air while reducing the absorption of water. Not only is the adsorption capacity large, but the adsorption efficiency is also greatly improved.

[0051] After passing through the filter 2, the air is irradiated by the ultraviolet lamp, and the first and second photocatalytic plates 5-2 perform photocatalytic degradation on the air, using UIO-66 to load BiOI and ZnO to form a heterojunction, which accelerates the transfer of photogenerated electrons and holes of the photocatalyst, and greatly improves the catalytic degradation efficiency of the photocatalyst. The above-mentioned photocatalyst is used to remove the odor, odor and organic and inorganic pollutants in the remaining air, and decompose them into water and carbon dioxide that are harmless to the human body, and then lead out through the air outlet to achieve the purpose of purifying the air.

[0052] Example 3 The present invention discloses a multipolar quantum odor removal device and method, the device comprises a housing 1, an air inlet and an air outlet are arranged opposite to each other on the housing 1, a filter 2, a first photocatalytic plate 5-1, an ultraviolet lamp 4, a second photocatalytic plate 5-2, and a fan 3 are arranged in sequence inside the housing 1 along the wind direction, the fan 3 is connected to the air outlet, the surface of the first and second photocatalytic plates 5-2 is a rough surface, and a photocatalytic coating is provided, and the photocatalytic coating contains at least three photocatalysts. The surface of the first and second photocatalytic plates 5-2 is set as a rough surface, the purpose of which is to increase the contact area between the first and second photocatalytic plates 5-2 and the air, so as to purify the air more efficiently. The ultraviolet lamp 4 adopts a 12V integrated ultraviolet LED light strip with a wavelength range of 200nm~550nm.

[0053] The photocatalyst includes the metal organic framework UIO-66, and the metal oxides Bi2O3 and ZnO. The above metal oxides are loaded on UIO-66 to form a heterojunction, which can enhance the mobility of electrons, reduce the recombination of photogenerated electrons and holes in the photocatalyst, and increase the yield of photogenerated electrons and holes in the photocatalyst. The increase in the yield of photogenerated electrons and holes symbolizes the improvement of the utilization rate of the photocatalyst and also increases the decomposition rate of pollutants.

[0054] The filter 2 is provided with an interlayer in which super-hydrophobic activated carbon is placed. The super-hydrophobic activated carbon is used to pre-adsorb harmful substances in the air while isolating water vapor. In order to facilitate the cleaning of the filter 2, the material of the filter 2 is selected to be metal or hard plastic such as PP, PE, ABS, etc.

[0055] The super hydrophobic activated carbon comprises activated carbon and a layer of super hydrophobic film wrapped on the outer surface of the activated carbon.

[0056] The super hydrophobic activated carbon is prepared by the following steps: (1) Pre-treating the activated carbon, wherein the activated carbon is heated at 120°C for 8 hours until the quality is stable, in order to remove the moisture and impurities contained therein; (2) Add 0.25 parts by mass of polyoxyethylene alkylamide, 1.5 parts by mass of polyvinylidene fluoride copolymer, 3.5 parts by mass of ethylenediamine with a mass fraction of 25%-28%, and 2 parts by mass of silica sol to 150 parts by mass of water, mix well, add 0.3 parts by mass of propyltrimethoxysilane, and stir well to obtain solution A; (3) Add the activated carbon pretreated in step (1) to solution A, stir thoroughly, filter and dry to obtain super hydrophobic activated carbon.

[0057] According to the above-mentioned odor removal device, the present invention proposes an odor removal method. When the intelligent remote control switch is turned on, the device is started, air enters from the air inlet, and the filter screen filters the dust impurities in the air. At the same time, the super-hydrophobic activated carbon in the filter screen pre-adsorbs VOCs and other harmful substances in the air while reducing the absorption of water. Not only is the adsorption capacity large, but the adsorption efficiency is also greatly improved.

[0058] After passing through the filter, the air is irradiated by ultraviolet light, and the first and second photocatalytic plates perform photocatalytic degradation on the air. UIO-66 is used to load BiOI and ZnO to form a heterojunction, which accelerates the transfer of photogenerated electrons and holes of the photocatalyst, greatly improving the catalytic degradation efficiency of the photocatalyst. The above photocatalyst is used to remove odors, odors, and organic and inorganic pollutants in the remaining air, and decompose them into water and carbon dioxide that are harmless to the human body, and then lead them out through the air outlet to achieve the purpose of purifying the air.

[0059] The multipolar quantum odor removal device provided by the present invention can not only effectively adsorb various Vocs small molecules in the room, but also degrade various odor molecules, greatly improving the indoor air quality and improving people's quality of life.

[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-pole quantum odor removal device, comprising a housing, an air inlet and an air outlet are arranged opposite to each other on the housing, a filter, a first photocatalytic plate, an ultraviolet lamp, a second photocatalytic plate, and a fan are arranged in sequence inside the housing along the wind direction, and the fan is connected to the air outlet, characterized in that: The surfaces of the first and second photocatalytic plates are rough surfaces and are provided with photocatalytic coatings, wherein the photocatalytic coatings contain at least three photocatalysts.

2. A multipolar quantum odor removal device according to claim 1, characterized in that: The photocatalyst includes a metal organic framework UIO-66, and any two or more of the metal oxides BiOI, Bi2O3, and ZnO. The above metal oxides are loaded on UIO-66 to form a heterojunction, which can enhance the mobility of electrons, reduce the recombination of photogenerated electrons and holes in the photocatalyst, and improve the quantum yield of the photocatalyst. The increase in quantum yield symbolizes the improvement in the utilization rate of the photocatalyst and also increases the decomposition rate of pollutants.

3. A multipolar quantum odor removal device according to claim 1, characterized in that: The filter screen is provided with an interlayer, in which super-hydrophobic activated carbon is placed. The super-hydrophobic activated carbon is used to pre-adsorb harmful substances in the air while isolating water vapor.

4. A multipolar quantum odor removal device according to claim 4, characterized in that: The super hydrophobic activated carbon comprises activated carbon and a layer of super hydrophobic film wrapped on the outer surface of the activated carbon.

5. A multi-pole quantum odor removal device according to claim 4, characterized in that: The hydrophobic activated carbon is prepared by the following steps: (1) Pretreatment of activated carbon; (2) adding 0.01-0.5 parts by mass of a surfactant, 1-2 parts by mass of a hydrophobic polymer, 3-4 parts by mass of ethylenediamine having a mass fraction of 25%-28%, and 1-3 parts by mass of silica sol to 150 parts by mass of water, mixing them evenly, and then adding 0.2-0.4 parts by mass of propyltrimethoxysilane thereto, stirring them thoroughly to obtain a solution A; the hydrophobic polymer is at least one of polydimethylsiloxane, polytetrafluoroethylene, and polyvinylidene fluoride copolymer; (3) Add the activated carbon pretreated in step (1) to solution A, stir thoroughly, filter and dry to obtain super hydrophobic activated carbon.

6. A multipolar quantum odor removal device according to claim 6, characterized in that: In step (1), the pretreatment is: heating the activated carbon at a temperature not lower than 120° C. for 5 to 8 hours until the quality is stable, so as to remove the moisture and impurities contained therein.

7. A multipolar quantum odor removal device according to claim 6, characterized in that: In step (2), the surfactant is polyoxyethylene alkylamine or polyoxyethylene alkylamide.

8. A method for removing odor, characterized in that: When the device is started, air enters from the air inlet, the filter screen filters the dust impurities in the air, and the hydrophobic activated carbon in the filter screen pre-adsorbs the VOCs in the air. After passing through the filter screen, the air is irradiated by ultraviolet light, and the first and second photocatalytic plates photocatalytically degrade the air to remove the remaining odor, odor and organic and inorganic pollutants in the air, and decompose them into water and carbon dioxide that are harmless to the human body, and then lead them out through the air outlet to achieve the purpose of purifying the air.

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