Environment-friendly cementing material capable of efficiently adsorbing formaldehyde and preparation method of environment-friendly cementing material

Abstract

The invention discloses an environment-friendly cementing material capable of efficiently adsorbing formaldehyde and a preparation method of the environment-friendly cementing material, and relates to the technical field of formaldehyde adsorption materials, and the environment-friendly cementing material is prepared from the following raw materials in parts by weight: 30-50 parts of activated carbon powder, 10-20 parts of diatomite powder, 8-10 parts of metal organic framework powder, 12-18 parts of a natural gelatinizing agent, 1-2 parts of a plasticizer and 2-4 parts of nano titanium dioxide. The activated carbon powder has an extremely high specific surface area and can effectively adsorb formaldehyde molecules in air. The porous structure of the diatomite powder increases the adsorption capacity of the material, and improves the formaldehyde removal efficiency. The metal organic framework powder has a unique pore structure and chemical properties, and can specifically adsorb formaldehyde and other volatile organic compounds (VOCs). The environment-friendly cementing material has the advantages of being efficient in formaldehyde adsorption, environment-friendly, durable, multifunctional, easy to process, economical, practical and the like, and is an ideal indoor air purification material.

Description

Technical Field

[0001] The invention relates to the technical field of formaldehyde adsorption materials, and in particular to an environmentally friendly gelling material capable of efficiently adsorbing formaldehyde and a preparation method thereof. Background Art

[0002] At present, formaldehyde adsorption materials mainly include the following categories:

[0003] 1. Physical adsorption materials: such as activated carbon, diatomaceous earth, molecular sieves, etc. These materials adsorb formaldehyde through porous structures, but they have problems such as limited adsorption capacity, easy saturation, and easy to cause secondary pollution after desorption.

[0004] 2. Chemical adsorption materials: such as amino compounds, metal oxides, etc. These materials combine with formaldehyde through chemical reactions, but there are problems such as irreversible reactions, easy deactivation of materials, and possible generation of harmful by-products.

[0005] 3. Biosorption materials: such as plant extracts, microorganisms, etc. This type of material uses biologically active substances to degrade formaldehyde, but has problems such as low efficiency, poor stability, and being greatly affected by environmental factors.

[0006] Existing materials are expensive and difficult to apply on a large scale. Therefore, there is an urgent need to design an environmentally friendly material that can efficiently adsorb formaldehyde to meet the needs of large-scale formaldehyde adsorption. Summary of the invention

[0007] In order to solve the above technical problem of formaldehyde adsorption, the present invention provides an environmentally friendly gelling material with high efficiency in adsorbing formaldehyde and a preparation method thereof. The following technical scheme is adopted:

[0008] An environmentally friendly gelling material with high formaldehyde absorption efficiency. The raw materials include the following components in parts by weight: 30-50 parts of activated carbon powder, 10-20 parts of diatomaceous earth powder, 8-10 parts of metal organic framework powder, 12-18 parts of natural gelling agent, 1-2 parts of plasticizer and 2-4 parts of nano titanium dioxide.

[0009] The formula raw materials include the following components in parts by weight: 40 parts of activated carbon powder, 15 parts of diatomaceous earth powder, 9 parts of metal organic framework powder, 15 parts of natural gelling agent, 2 parts of plasticizer and 3 parts of nano titanium dioxide.

[0010] By adopting the above technical solutions, the activated carbon powder has an extremely high specific surface area and can effectively adsorb formaldehyde molecules in the air. The porous structure of diatomaceous earth powder increases the adsorption capacity of the material and improves the removal efficiency of formaldehyde. The metal organic framework powder has a unique pore structure and chemical properties, which can specifically adsorb volatile organic compounds (VOCs) such as formaldehyde. The use of natural gelling agents provides good bonding properties, which makes the material have certain strength and ductility, and is easy to form and construct. The selected raw materials are all environmentally friendly materials and will not cause secondary pollution to the indoor environment. The use of plasticizers improves the flexibility of the material, and at the same time, plasticizers with less impact on the environment are selected to reduce adverse effects on the environment. The addition of nano-titanium dioxide not only improves the photocatalytic performance of the material, but also decomposes the adsorbed formaldehyde under light, thereby extending the service life of the material.

[0011] The composite material combines the mechanisms of physical adsorption and photocatalytic decomposition, which can not only adsorb formaldehyde, but also decompose other harmful gases and organic pollutants to a certain extent.

[0012] The ratio of each component in the formula is optimized, making the material easy to mix, shape, and mass produce and apply. Through reasonable proportioning, the material not only ensures high performance, but also takes cost-effectiveness into consideration, making it competitive in the market. The material can be applied to various indoor environments, such as newly renovated homes, offices, schools, etc., and helps improve indoor air quality.

[0013] This environmentally friendly gelling material has the advantages of high efficiency in formaldehyde absorption, environmental protection, durability, versatility, easy processing and affordability. It is an ideal indoor air purification material.

[0014] Optionally, the mesh size of the activated carbon powder and the diatomaceous earth powder is greater than 400 mesh.

[0015] By adopting the above technical solution, activated carbon powder and diatomaceous earth powder with mesh numbers greater than 400 are used, and the specific surface area of ​​activated carbon and diatomaceous earth is increased, which can provide more adsorption sites, thereby enhancing the adsorption capacity of formaldehyde molecules. Fine particles can contact formaldehyde molecules more effectively, increase the probability of adsorption reaction, and thus improve the overall adsorption efficiency. Fine-grained powder is easier to achieve uniform distribution during the mixing process, making the adsorption performance of the entire gelling material more uniform and consistent. High-mesh powder has better dispersibility in gelling materials, which helps to improve the overall performance of the material and reduce the decrease in adsorption performance caused by particle agglomeration. Fine-grained materials have less resistance in airflow, and when used in air purification devices, they can reduce pressure drop and energy consumption. For gelling materials added with nano-titanium dioxide, fine-grained activated carbon and diatomaceous earth can better combine with nano-titanium dioxide to improve the effect of photocatalytic decomposition of formaldehyde. Fine-grained powder can better bond under the action of gelling agent, thereby improving the mechanical strength and durability of the material. Fine-grained materials are easier to form in molds, which helps to prepare products with complex shapes or precise requirements.

[0016] Using activated carbon powder and diatomaceous earth powder with a mesh size greater than 400 can significantly improve the performance of formaldehyde adsorption materials, making them have higher application value in the field of air purification.

[0017] Optionally, the metal organic framework powder is a MOFs powder having a mesh size greater than 300.

[0018] Optionally, the metal organic framework powder is composed of ultra-microporous MOFs powder and mesoporous MOFs powder in a weight ratio of 2:1.

[0019] By adopting the above technical scheme, MOFs with different characteristics are mixed, especially ultra-microporous MOFs powder and mesoporous MOFs powder in a weight ratio of 2:1. Ultra-microporous MOFs refer to MOFs with a pore size of less than 1 nanometer. Ultra-microporous MOFs provide a large number of micropores, which have a strong adsorption capacity for small molecules such as formaldehyde. Mesoporous MOFs refer to MOFs with a pore size of 2-50 nanometers. Mesoporous MOFs provide a larger pore size, which can serve as a molecular channel, allowing formaldehyde molecules to enter the material faster and reduce diffusion resistance. The high specific surface area of ​​ultra-microporous MOFs increases the number of adsorption sites, while mesoporous MOFs provide additional adsorption space. The combination of the two can significantly increase the overall adsorption capacity. The presence of mesoporous MOFs can serve as a fast transmission channel, allowing formaldehyde molecules to quickly reach the adsorption sites of ultra-microporous MOFs, thereby accelerating the adsorption rate. Ultra-microporous MOFs are generally more selective for molecules of a specific size, while mesoporous MOFs may have a better adsorption effect on larger molecules or different types of pollutants. This combination can achieve broader or more specific regulation of adsorption selectivity. The mixed use of ultraporous and mesoporous MOFs can optimize the pore distribution, so that the material has a better adsorption effect on molecules of different sizes, thereby improving the adsorption efficiency. The structure of mesoporous MOFs is generally more stable than that of ultraporous MOFs. Mixing can improve the mechanical and chemical stability of the composite material. Two MOFs with different pore sizes may produce a synergistic effect, that is, their combined adsorption effect is better than that of any MOF used alone.

[0020] Due to the rapid transport characteristics of mesoporous MOFs, the time it takes for the material to reach adsorption saturation can be reduced, thus extending the service life of the material.

[0021] Optionally, the environmentally friendly gelling material is circular after being formed, and the circle is evenly divided into a number of sectors, and the middle parts of the outer edges of the sectors are respectively connected to a number of hanging rings, and the hanging rings are metal spring ring buckles.

[0022] By adopting the above technical solution, the composite installation of several hanging rings can be mounted on umbrella ribs or other hanging parts to fully expand the environmentally friendly gelling material indoors, greatly improving the formaldehyde adsorption effect.

[0023] A method for preparing an environmentally friendly gelling material with high efficiency in adsorbing formaldehyde, which is used to prepare an environmentally friendly gelling material with high efficiency in adsorbing formaldehyde, comprises the following steps:

[0024] Step 1, premixing activated carbon and diatomaceous earth powder, putting 40 parts of activated carbon powder and 15 parts of diatomaceous earth powder ground into 400 mesh into a first premixing container, and stirring for 10-15 minutes using a mechanical stirrer;

[0025] Step 2, putting 6 parts of ultra-microporous MOFs powder and 3 parts of mesoporous MOFs powder ground into 300 mesh into a second premixing container, and stirring for 15-20 minutes using a mechanical stirrer to obtain a metal organic framework powder mixture;

[0026] Step 3, adding the metal organic framework powder mixture into the first premixing container, and continuing to stir using a mechanical stirrer for 10 minutes;

[0027] Step 4, in a third premixing container, 15 parts of natural gelling agent and 2 parts of plasticizer are mixed, and stirred with a stirrer for 20-25 minutes to obtain a gelling agent mixture;

[0028] Step 5, adding 3 parts of nano titanium dioxide to the gelling agent mixture in the third premix container and continuing to stir for 10 minutes to uniformly disperse the nano titanium dioxide;

[0029] Step 6, adding the gelling agent mixture into the first premixing container to form a semi-finished product mixture containing activated carbon, diatomaceous earth, metal organic framework powder mixture and gelling agent mixture, and stirring for 30-45 minutes using a mechanical stirrer until all components form a uniform semi-finished product mixture;

[0030] Step 7, pour the semi-finished product mixture into a mold, the shape of the mold is round, place the mold in a drying room, dry it at a temperature of 45-60° C. for 24-48 hours, and after drying, take out the round gelling material product.

[0031] Optionally, the method further includes step 8, installing several hanging rings, punching out circular holes with a diameter of 20 mm in the middle of the outer edges of several sectors using a stamping die, compounding annular non-woven fabrics with an outer diameter of 40 mm and an inner diameter of 20 mm on both sides of the circular holes, opening the openings of the several hanging rings respectively, and closing the openings of the hanging rings after assembling them in the circular holes.

[0032] By adopting the above technical solution, the installation of the hanging ring makes it easy for the formaldehyde adsorbent material to be hung in the indoor space or spread through the umbrella ribs, without the need for additional fixing devices, simplifying the installation process. By hanging, the material can make more effective use of the indoor space, especially in places where it is not suitable to place fixed adsorption devices. The hanging design helps the air circulation around the material, thereby increasing the contact probability of formaldehyde molecules and enhancing the adsorption effect. The hanging adsorption material can be designed into various shapes and styles, coordinated with the interior decoration style, and enhance the aesthetics of the indoor environment. The design of the hanging ring makes the material easy to disassemble and replace, convenient for regular cleaning or replacement, and maintain the adsorption effect.

[0033] Optionally, the rotation speed of the mechanical stirrer in steps 1 to 5 is 100-200 rpm, and the rotation speed of the mechanical stirrer in step 6 is 800-1000 rpm.

[0034] The invention discloses an application of an environmentally friendly gelling material with high efficiency in absorbing formaldehyde. The environmentally friendly gelling material with high efficiency in absorbing formaldehyde is covered on the outside of a wooden umbrella rib, and a plurality of hanging rings are hung on the ends of the skeleton of the wooden umbrella rib respectively. The wooden umbrella rib is opened, and the environmentally friendly gelling material is spread out indoors to absorb formaldehyde.

[0035] By adopting the above technical solution, by covering the environmentally friendly gelling material on the wooden ribs and unfolding it, a large area of ​​indoor space can be covered, thereby more effectively absorbing formaldehyde molecules and improving the overall purification efficiency. The design of the rib structure makes it easy to unfold and fold the material, which is convenient for users to quickly deploy the formaldehyde adsorption device indoors, especially suitable for new decorations or heavily polluted environments that need rapid purification. The rib structure can adapt to different indoor space sizes, and by adjusting the opening angle and position of the ribs, it can adapt to different room layouts and heights.

[0036] When not in use, the rib structure can be easily folded up to save storage space, which is particularly suitable for environments with limited space. The rib structure helps to maintain the shape of the material without hindering air circulation, ensuring that formaldehyde molecules can smoothly contact the adsorption material. The rib structure can be designed as a decorative element to blend in with the interior decoration style, which is both beautiful and practical.

[0037] The design of the hanging ring makes it easy to remove and replace the gelling material from the umbrella ribs, which is convenient for cleaning or renewal and maintains a long-term adsorption effect. The use of wooden umbrella ribs avoids the potential safety hazards caused by metal materials, and also adds a natural and warm atmosphere.

[0038] This application solution provides an efficient, convenient, environmentally friendly and beautiful indoor formaldehyde adsorption solution, which can effectively improve indoor air quality while taking into account user experience and environmental protection.

[0039] In summary, the present invention includes at least one of the following beneficial technical effects:

[0040] The present invention can provide an environmentally friendly gelling material for efficiently absorbing formaldehyde and a preparation method thereof. The activated carbon powder has an extremely high specific surface area and can effectively absorb formaldehyde molecules in the air. The porous structure of the diatomaceous earth powder increases the adsorption capacity of the material and improves the removal efficiency of formaldehyde. The metal organic framework powder has a unique pore structure and chemical properties and can specifically adsorb volatile organic compounds (VOCs) such as formaldehyde. The use of a natural gelling agent provides good bonding properties, so that the material has a certain strength and ductility, which is convenient for molding and construction. The selected raw materials will not cause secondary pollution to the indoor environment. The use of a plasticizer improves the flexibility of the material, and at the same time, a plasticizer with less impact on the environment is selected, thereby reducing the adverse impact on the environment. The addition of nano titanium dioxide not only improves the photocatalytic performance of the material, but also decomposes the adsorbed formaldehyde under light, thereby extending the service life of the material.

[0041] The ratio of each component in the formula is optimized, making the material easy to mix, shape, and mass produce and apply. Through reasonable proportioning, the material not only ensures high performance, but also takes cost-effectiveness into consideration, making it competitive in the market. The material can be applied to various indoor environments, such as newly renovated homes, offices, schools, etc., and helps improve indoor air quality.

[0042] This environmentally friendly gelling material has the advantages of high efficiency in formaldehyde absorption, environmental protection, durability, versatility, easy processing and affordability. It is an ideal indoor air purification material. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic flow chart of a method for preparing an environmentally friendly gelling material capable of efficiently absorbing formaldehyde according to the present invention;

[0044] Figure 2 This is a schematic diagram of the structural principle of an environmentally friendly gelling material for efficiently absorbing formaldehyde according to the present invention;

[0045] Figure 3 It is a schematic diagram of the structural principle of an environmentally friendly gelling material for efficiently absorbing formaldehyde according to the present invention.

[0046] Description of the accompanying drawings: 1. Fan shape; 2. Hanging ring; 3. Wooden umbrella ribs. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0048] The embodiment of the invention discloses an environmentally friendly gelling material capable of efficiently absorbing formaldehyde and a preparation method thereof.

[0049] Reference Figure 1-Figure 3Embodiment 1, an environmentally friendly gelling material with high efficiency in adsorbing formaldehyde, the formula raw materials include the following components in parts by weight: 30-50 parts of activated carbon powder, 10-20 parts of diatomaceous earth powder, 8-10 parts of metal organic framework powder, 12-18 parts of natural gelling agent, 1-2 parts of plasticizer, and 2-4 parts of nano titanium dioxide.

[0050] Example 2, the formula raw materials include the following components in parts by weight: 40 parts of activated carbon powder, 15 parts of diatomaceous earth powder, 9 parts of metal organic framework powder, 15 parts of natural gelling agent, 2 parts of plasticizer, and 3 parts of nano titanium dioxide.

[0051] Activated carbon powder has an extremely high specific surface area and can effectively adsorb formaldehyde molecules in the air. The porous structure of diatomaceous earth powder increases the adsorption capacity of the material and improves the removal efficiency of formaldehyde. Metal organic framework powder has a unique pore structure and chemical properties, which can specifically adsorb volatile organic compounds (VOCs) such as formaldehyde. The use of natural gelling agents provides good bonding properties, giving the material a certain strength and ductility, which is convenient for molding and construction. The selected raw materials are all environmentally friendly materials and will not cause secondary pollution to the indoor environment. The use of plasticizers improves the flexibility of the material, and at the same time, plasticizers with less impact on the environment are selected to reduce adverse effects on the environment. The addition of nano-titanium dioxide not only improves the photocatalytic performance of the material, but also decomposes the adsorbed formaldehyde under light, thereby extending the service life of the material.

[0052] The composite material combines the mechanisms of physical adsorption and photocatalytic decomposition, which can not only adsorb formaldehyde, but also decompose other harmful gases and organic pollutants to a certain extent.

[0053] The ratio of each component in the formula is optimized, making the material easy to mix, shape, and mass produce and apply. Through reasonable proportioning, the material not only ensures high performance, but also takes cost-effectiveness into consideration, making it competitive in the market. The material can be applied to various indoor environments, such as newly renovated homes, offices, schools, etc., and helps improve indoor air quality.

[0054] This environmentally friendly gelling material has the advantages of high efficiency in formaldehyde absorption, environmental protection, durability, versatility, easy processing and affordability. It is an ideal indoor air purification material.

[0055] In Example 3, the mesh size of the activated carbon powder and the diatomaceous earth powder is greater than 400 mesh.

[0056] Using activated carbon powder and diatomaceous earth powder with mesh numbers greater than 400, the specific surface area of ​​activated carbon and diatomaceous earth increases, which can provide more adsorption sites, thereby enhancing the adsorption capacity of formaldehyde molecules. Fine particles can contact formaldehyde molecules more effectively, increase the probability of adsorption reaction, and thus improve the overall adsorption efficiency. Fine-grained powders are easier to achieve uniform distribution during the mixing process, making the adsorption performance of the entire gelling material more uniform and consistent. High-mesh powders have better dispersibility in gelling materials, which helps to improve the overall performance of the material and reduce the decrease in adsorption performance caused by particle agglomeration. Fine-grained materials have less resistance in airflow, and when used in air purification devices, they can reduce pressure drop and energy consumption. For gelling materials with nano-titanium dioxide added, fine-grained activated carbon and diatomaceous earth can better combine with nano-titanium dioxide to improve the effect of photocatalytic decomposition of formaldehyde. Fine-grained powders can better bond under the action of gelling agents, thereby improving the mechanical strength and durability of the material. Fine-grained materials are easier to form in molds, which helps to prepare products with complex shapes or precise requirements.

[0057] Using activated carbon powder and diatomaceous earth powder with a mesh size greater than 400 can significantly improve the performance of formaldehyde adsorption materials, making them have higher application value in the field of air purification.

[0058] In Example 4, the metal organic framework powder is a MOFs powder having a mesh size greater than 300.

[0059] In Example 5, the metal organic framework powder is composed of ultra-microporous MOFs powder and mesoporous MOFs powder in a weight ratio of 2:1.

[0060] MOFs with different characteristics are mixed, especially ultra-microporous MOF powder and mesoporous MOF powder in a weight ratio of 2:1. Ultra-microporous MOFs refer to MOFs with a pore size of less than 1 nanometer. Ultra-microporous MOFs provide a large number of micropores, which have a strong adsorption capacity for small molecules such as formaldehyde. Mesoporous MOFs refer to MOFs with a pore size of 2-50 nanometers. Mesoporous MOFs provide larger pores, which can serve as molecular channels, allowing formaldehyde molecules to enter the material faster and reduce diffusion resistance. The high specific surface area of ​​ultra-microporous MOFs increases the number of adsorption sites, while mesoporous MOFs provide additional adsorption space. The combination of the two can significantly increase the overall adsorption capacity. The presence of mesoporous MOFs can serve as a fast transmission channel, allowing formaldehyde molecules to quickly reach the adsorption sites of ultra-microporous MOFs, thereby accelerating the adsorption rate. Ultra-microporous MOFs are generally more selective for molecules of a certain size, while mesoporous MOFs may have better adsorption effects on larger molecules or different types of pollutants. This combination can achieve broader or more specific regulation of adsorption selectivity. The mixed use of ultraporous and mesoporous MOFs can optimize the pore distribution, so that the material has a better adsorption effect on molecules of different sizes, thereby improving the adsorption efficiency. The structure of mesoporous MOFs is generally more stable than that of ultraporous MOFs. Mixing can improve the mechanical and chemical stability of the composite material. Two MOFs with different pore sizes may produce a synergistic effect, that is, their combined adsorption effect is better than that of any MOF used alone.

[0061] Due to the rapid transport characteristics of mesoporous MOFs, the time it takes for the material to reach adsorption saturation can be reduced, thus extending the service life of the material.

[0062] Embodiment 6: The environmentally friendly cementitious material is circular after being formed, and the circle is evenly divided into a number of sectors 1. The middle of the outer edges of the sectors 1 are respectively connected to a number of hanging rings 2, and the hanging rings 2 are metal spring ring buckles.

[0063] The composite installation of several hanging rings 2 can be mounted on umbrella ribs or other hanging parts to fully spread the environmentally friendly gelling material indoors, greatly improving the formaldehyde adsorption effect.

[0064] Embodiment 7, a method for preparing an environmentally friendly gelling material with high efficiency in formaldehyde absorption, for preparing an environmentally friendly gelling material with high efficiency in formaldehyde absorption, comprising the following steps:

[0065] Step 1, premixing activated carbon and diatomaceous earth powder, putting 40 parts of activated carbon powder and 15 parts of diatomaceous earth powder ground into 400 mesh into a first premixing container, and stirring for 10-15 minutes using a mechanical stirrer;

[0066] Step 2, putting 6 parts of ultra-microporous MOFs powder and 3 parts of mesoporous MOFs powder ground into 300 mesh into a second premixing container, and stirring for 15-20 minutes using a mechanical stirrer to obtain a metal organic framework powder mixture;

[0067] Step 3, adding the metal organic framework powder mixture into the first premixing container, and continuing to stir using a mechanical stirrer for 10 minutes;

[0068] Step 4, in a third premixing container, 15 parts of natural gelling agent and 2 parts of plasticizer are mixed, and stirred with a stirrer for 20-25 minutes to obtain a gelling agent mixture;

[0069] Step 5, adding 3 parts of nano titanium dioxide to the gelling agent mixture in the third premix container and continuing to stir for 10 minutes to uniformly disperse the nano titanium dioxide;

[0070] Step 6, adding the gelling agent mixture into the first premixing container to form a semi-finished product mixture containing activated carbon, diatomaceous earth, metal organic framework powder mixture and gelling agent mixture, and stirring for 30-45 minutes using a mechanical stirrer until all components form a uniform semi-finished product mixture;

[0071] Step 7, pour the semi-finished product mixture into a mold, the shape of the mold is round, place the mold in a drying room, dry it at a temperature of 45-60° C. for 24-48 hours, and after drying, take out the round gelling material product.

[0072] Embodiment 8 also includes step 8, installing a plurality of hanging rings 2, and using a stamping die to punch out circular holes with a diameter of 20 mm in the middle of the outer edges of a plurality of sectors 1, and compounding annular non-woven fabrics with an outer diameter of 40 mm and an inner diameter of 20 mm on both sides of the circular holes, opening the openings of the plurality of hanging rings 2 respectively, and closing the openings of the hanging rings 2 after assembling them in the circular holes.

[0073] Installing the hanging ring 2 makes it easy to hang the formaldehyde adsorbent material in the indoor space or open it through the umbrella ribs, without the need for additional fixing devices, simplifying the installation process. By hanging, the material can make more effective use of the indoor space, especially in places where it is not suitable to place fixed adsorption devices. The hanging design helps the circulation of air around the material, thereby increasing the contact probability of formaldehyde molecules and enhancing the adsorption effect. The hanging adsorption material can be designed into various shapes and styles to coordinate with the interior decoration style and enhance the aesthetics of the indoor environment. The design of the hanging ring makes the material easy to disassemble and replace, which is convenient for regular cleaning or replacement to maintain the adsorption effect.

[0074] In Example 9, the rotation speed of the mechanical stirrer in steps 1 to 5 is 100-200 rpm, and the rotation speed of the mechanical stirrer in step 6 is 800-1000 rpm.

[0075] Example 10, an application of an environmentally friendly gelling material with high efficiency in absorbing formaldehyde, is to cover the wooden rib 3 with the environmentally friendly gelling material with high efficiency in absorbing formaldehyde, and hang a number of hanging rings 2 on the ends of the skeleton of the wooden rib 3, open the wooden rib 3, and spread the environmentally friendly gelling material indoors to absorb formaldehyde.

[0076] By covering the wooden ribs 3 with the environmentally friendly gelling material and unfolding it, a large area of ​​indoor space can be covered, thereby more effectively absorbing formaldehyde molecules and improving the overall purification efficiency. The design of the rib structure makes it easy to unfold and fold the material, which is convenient for users to quickly deploy the formaldehyde adsorption device indoors, and is particularly suitable for new decorations or heavily polluted environments that require rapid purification. The rib structure can adapt to different indoor space sizes, and by adjusting the opening angle and position of the ribs, it can adapt to different room layouts and heights.

[0077] When not in use, the rib structure can be easily folded up to save storage space, which is particularly suitable for environments with limited space. The rib structure helps to maintain the shape of the material without hindering air circulation, ensuring that formaldehyde molecules can smoothly contact the adsorption material. The rib structure can be designed as a decorative element to blend in with the interior decoration style, which is both beautiful and practical.

[0078] The design of the hanging ring 2 makes it easy to remove and replace the gelling material from the umbrella ribs, which is convenient for cleaning or renewal and maintains a long-term adsorption effect. The use of wooden umbrella ribs avoids the potential safety hazards caused by metal materials and also adds a natural and warm atmosphere.

[0079] This application solution provides an efficient, convenient, environmentally friendly and beautiful indoor formaldehyde adsorption solution, which can effectively improve indoor air quality while taking into account user experience and environmental protection.

[0080] The following specific examples are used to illustrate the implementation principle of an environmentally friendly gelling material with high efficiency in adsorbing formaldehyde and a preparation method thereof of the present invention: Specific embodiment 1:

[0082] Recipe and preparation:

[0083] Activated carbon powder (400 mesh): 40 parts;

[0084] Diatomaceous earth powder (400 mesh): 15 parts;

[0085] Ultra-microporous MOFs powder (300 mesh): 6 parts;

[0086] Mesoporous MOFs powder (300 mesh): 3 parts;

[0087] Natural gelling agent: 15 parts;

[0088] Plasticizer: 2 parts;

[0089] Nano titanium dioxide: 3 parts;

[0090] Preparation steps:

[0091] Premix activated carbon and diatomaceous earth powder and stir for 10-15 minutes.

[0092] Premix the ultramicroporous and mesoporous MOFs powders and stir for 15-20 min.

[0093] The MOFs mixture was added to the activated carbon and diatomaceous earth mixture and stirring was continued for 10 min.

[0094] Mix the natural gelling agent and plasticizer and stir for 20-25 minutes.

[0095] Add nano titanium dioxide and continue stirring for 10 minutes.

[0096] Add the gelling agent mixture to the activated carbon mixture and stir for 30-45 minutes.

[0097] Pour the mixture into round molds and let dry for 24-48 hours.

[0098] Application: Cover the material on the outside of the wooden umbrella rib 3, hang it on the end of the umbrella rib through the hanging ring, and unfold it indoors.

[0099] Test data: Indoor formaldehyde concentration from 0.12mg / m 3 Reduced to 0.02 mg / m 3 , the adsorption efficiency reached 83%. Specific embodiment 2:

[0101] Recipe and preparation:

[0102] Activated carbon powder (400 mesh): 45 parts;

[0103] Diatomaceous earth powder (400 mesh): 18 parts;

[0104] Ultra-microporous MOFs powder (300 mesh): 8 parts;

[0105] Mesoporous MOFs powder (300 mesh): 4 parts;

[0106] Natural gelling agent: 12 parts;

[0107] Plasticizer: 1.5 parts;

[0108] Nano titanium dioxide: 4 parts;

[0109] Preparation steps:

[0110] Premix activated carbon and diatomaceous earth powder and stir for 12 minutes.

[0111] Premix the ultramicroporous and mesoporous MOFs powders and stir for 18 min.

[0112] The MOFs mixture was added to the activated carbon and diatomaceous earth mixture and stirring was continued for 8 min.

[0113] The natural gelling agent and plasticizer were mixed and stirred for 22 minutes.

[0114] Add nano titanium dioxide and continue stirring for 8 minutes.

[0115] The gelling agent mixture was added to the activated carbon mixture and stirred for 35 minutes.

[0116] The mixture was poured into round molds and allowed to dry for 28 hours.

[0117] The material is made into a fan shape and hung on the indoor ceiling through a hanging ring 2, covering an area of ​​20 square meters.

[0118] Test data: Indoor formaldehyde concentration from 0.15mg / m 3 Reduced to 0.03 mg / m 3 , the adsorption efficiency reaches 80%.

[0119] Both embodiments show efficient formaldehyde adsorption capabilities and can significantly reduce indoor formaldehyde concentrations.

[0120] During the material preparation process, optimization of stirring speed and drying time can help improve the uniformity and adsorption performance of the material.

[0121] In practical applications, the unfolding and hanging design of the material increases its coverage area and air circulation, thereby enhancing the adsorption effect.

[0122] Test data confirms the material’s high efficiency and practicality for indoor air purification.

[0123] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly gelling material with high efficiency in adsorbing formaldehyde, characterized by: The formula raw materials include the following components in parts by weight: 30-50 parts of activated carbon powder, 10-20 parts of diatomaceous earth powder, 8-10 parts of metal organic framework powder, 12-18 parts of natural gelling agent, 1-2 parts of plasticizer and 2-4 parts of nano titanium dioxide.

2. The environmentally friendly gelling material with high efficiency in adsorbing formaldehyde according to claim 1, characterized in that: The formula raw materials include the following components in parts by weight: 40 parts of activated carbon powder, 15 parts of diatomaceous earth powder, 9 parts of metal organic framework powder, 15 parts of natural gelling agent, 2 parts of plasticizer and 3 parts of nano titanium dioxide.

3. The environmentally friendly gelling material with high efficiency in adsorbing formaldehyde according to claim 2, characterized in that: The mesh size of activated carbon powder and diatomaceous earth powder is greater than 400 mesh.

4. The environmentally friendly gelling material with high efficiency in adsorbing formaldehyde according to claim 3, characterized in that: Metal organic framework powder is MOFs powder with a mesh size greater than 300.

5. The environmentally friendly gelling material with high efficiency in adsorbing formaldehyde according to claim 4, characterized in that: The metal organic framework powder is composed of ultra-microporous MOFs powder and mesoporous MOFs powder in a weight ratio of 2:

1.

6. The environmentally friendly gelling material with high efficiency in adsorbing formaldehyde according to claim 5, characterized in that: The environmentally friendly gelling material is formed into a circle, which is evenly divided into a plurality of sectors (1). The middle parts of the outer edges of the plurality of sectors (1) are respectively connected to a plurality of hanging rings (2), and the hanging rings (2) are metal spring ring buckles.

7. A method for preparing an environmentally friendly gelling material with high efficiency in adsorbing formaldehyde, characterized in that: The method for preparing an environmentally friendly gelling material for efficiently absorbing formaldehyde as claimed in claim 6 comprises the following steps: Step 1, premixing activated carbon and diatomaceous earth powder, putting 40 parts of activated carbon powder and 15 parts of diatomaceous earth powder ground into 400 mesh into a first premixing container, and stirring for 10-15 minutes using a mechanical stirrer; Step 2, putting 6 parts of ultra-microporous MOFs powder and 3 parts of mesoporous MOFs powder ground into 300 mesh into a second premixing container, and stirring for 15-20 minutes using a mechanical stirrer to obtain a metal organic framework powder mixture; Step 3, adding the metal organic framework powder mixture into the first premixing container, and continuing to stir using a mechanical stirrer for 10 minutes; Step 4, in a third premixing container, 15 parts of a natural gelling agent and 2 parts of a plasticizer are mixed, and stirred with a stirrer for 20-25 minutes to obtain a gelling agent mixture; Step 5, adding 3 parts of nano titanium dioxide to the gelling agent mixture in the third premix container and continuing to stir for 10 minutes to uniformly disperse the nano titanium dioxide; Step 6, adding the gelling agent mixture into the first premixing container to form a semi-finished product mixture containing activated carbon, diatomaceous earth, metal organic framework powder mixture and gelling agent mixture, and stirring for 30-45 minutes using a mechanical stirrer until all components form a uniform semi-finished product mixture; Step 7, pour the semi-finished product mixture into a mold, the shape of the mold is round, place the mold in a drying room, dry it at a temperature of 45-60° C. for 24-48 hours, and after drying, take out the round gelling material product.

8. The method for preparing an environmentally friendly gelling material with high efficiency in adsorbing formaldehyde according to claim 7, characterized in that: The method further comprises step 8, wherein a plurality of hanging rings (2) are installed, and circular holes with a diameter of 20 mm are punched out in the middle of the outer edges of the plurality of sectors (1) using a punching die, and an annular non-woven fabric with an outer diameter of 40 mm and an inner diameter of 20 mm is laminated on both sides of the circular holes, and the openings of the plurality of hanging rings (2) are opened respectively, and the openings of the hanging rings (2) are closed after being assembled in the circular holes.

9. The method for preparing an environmentally friendly gelling material with high efficiency in adsorbing formaldehyde according to claim 7, characterized in that: The rotation speed of the mechanical stirrer in steps 1 to 5 is 100-200 rpm, and the rotation speed of the mechanical stirrer in step 6 is 800-1000 rpm.

10. Application of an environmentally friendly gelling material with high efficiency in adsorbing formaldehyde, characterized in that: An environmentally friendly gelling material with high formaldehyde absorption efficiency prepared according to claim 8 is covered on the outside of a wooden umbrella rib (3), and a plurality of hanging rings (2) are hung on the ends of the skeleton of the wooden umbrella rib (3), and the wooden umbrella rib (3) is opened, and the environmentally friendly gelling material is spread out indoors to absorb formaldehyde.

Images