CN111097281A - Air purifying agent, air purifying bag and preparation method and application thereof - Google Patents
Air purifying agent, air purifying bag and preparation method and application thereof Download PDFInfo
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- CN111097281A CN111097281A CN201811257631.6A CN201811257631A CN111097281A CN 111097281 A CN111097281 A CN 111097281A CN 201811257631 A CN201811257631 A CN 201811257631A CN 111097281 A CN111097281 A CN 111097281A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/108—Halogens or halogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/91—Bacteria; Microorganisms
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- Dispersion Chemistry (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention provides an air purifying agent, an air purifying bag, a preparation method and an application thereof, wherein the air purifying agent comprises the following components in percentage by mass: 10 to 45 percent of sodium chlorite and 55 to 90 percent of acid activating carrier. The air purifying agent provided by the invention provides a simpler, more convenient and more effective mode for slowly releasing solid chlorine dioxide, and the air purifying agent is prepared by soaking a porous solid adsorption carrier with a moisture absorption function in an acidic buffer solution with the pH value of 4-6.5, drying and crushing the solid adsorption carrier, mixing the dried and crushed solid adsorption carrier with sodium chlorite powder, and controlling the entry of water vapor and the release amount of chlorine dioxide gas through an externally-coated non-woven fabric breathable bag, so that the effects of stable slow release and long-acting release are achieved.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to an air purifying agent, an air purifying bag, and a preparation method and application thereof.
Background
Numerous researches show that the chlorine dioxide has excellent functions of sterilization, disinfection, aldehyde removal and odor removal, and the chlorine dioxide is gas and has inconvenience in the actual use process, so people adopt various methods to solve the problem, wherein the technology of slowly releasing the chlorine dioxide in a solid state is most convenient. Patent CN201110042144.X adopts slowly-releasing polymer coating with chlorine dioxide and active catalyst cladding in the middle, has isolated external environment and has taken place the material effect to chlorine dioxide, has improved chlorine dioxide's stability. Patent CN03121406.1 adopts a macromolecule coating layer to coat chlorine dioxide, and then the chlorine dioxide is mixed with an acidic activator to obtain a solid stable chlorine dioxide disinfectant.
However, the core of the two methods is to adopt a coating technology, complete coating is difficult to achieve in actual production, the actual application effect is not ideal, and the complexity of production and preparation is increased.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The first purpose of the invention is to provide an air purifying agent, which solves the problems of complexity, unsatisfactory application effect and the like existing in the production of a coating technology.
The second purpose of the invention is to provide a preparation method of the air purifying agent, which has the advantages of convenience, simplicity, easy production and the like.
The third purpose of the invention is to provide an air purifying bag filled with the air purifying agent, the product has the advantages of convenient storage and use, stable amount of released chlorine dioxide gas and long service life, and can be used for occasions of removing formaldehyde in new houses and new vehicles, removing odor in refrigerators and toilets, sterilizing and disinfecting hospital wards and the like.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
an air purifying agent comprises the following components in percentage by mass:
10 to 45 percent of sodium chlorite and 55 to 90 percent of acid activating carrier.
Preferably, the air purifying agent comprises the following components in percentage by mass:
20 to 40 percent of sodium chlorite and 60 to 80 percent of acid activating carrier.
Preferably, the acidic activating carrier is prepared from a porous adsorption carrier and an acidic buffer solution; more preferably, the acidic activating carrier is prepared by mixing, drying and crushing a porous adsorption carrier and an acidic buffer solution.
Preferably, the mass ratio of the acidic buffer solution to the porous adsorption carrier is 2-6: 4-8.
Preferably, the pH of the acidic buffer is 4 to 6.5, and more preferably, the acidic buffer is one selected from a citric acid-sodium citrate buffer solution, a citric acid-sodium hydroxide-hydrochloric acid buffer solution, and a disodium hydrogen phosphate-citric acid buffer solution.
Preferably, the porous adsorption carrier comprises one or a combination of more of diatomite, montmorillonite, zeolite powder, sepiolite powder, molecular sieve and medical stone.
The preparation method of the air purifying agent comprises the following steps:
mixing, drying and crushing the porous adsorption carrier and the acidic buffer solution to obtain an acidic activated carrier, and mixing the acidic activated carrier with sodium chlorite to obtain the air purifying agent.
An air purification bag filled with the air purifying agent according to any one of claims 1 to 6, wherein the amount of the air purifying agent is 50 to 200g per bag, preferably 50 to 150g per bag.
Preferably, the breathable bag is a non-woven fabric breathable bag, more preferably, the non-woven fabric breathable bag is made of one material selected from polypropylene fibers, polyester fibers, chinlon, viscose fibers, acrylic fibers, polyethylene fibers and polyvinyl chloride fibers, and more preferably is made of polypropylene fibers or polyester fibers;
more preferably, the specification of the non-woven fabric breathable bag is 80-150 g/m2More preferably 100-120g/m2。
The air purifying agent or the air purifying bag is applied to removing formaldehyde, eliminating peculiar smell, and sterilizing.
Compared with the prior art, the invention has the beneficial effects that:
(1) the air purifying agent provided by the invention provides a simpler, more convenient and more effective mode for slowly releasing solid chlorine dioxide, and the air purifying agent is prepared by soaking a porous solid adsorption carrier with a moisture absorption function in an acidic buffer solution with the pH value of 4-6.5, drying and crushing the solid adsorption carrier, mixing the dried and crushed solid adsorption carrier with sodium chlorite powder, and controlling the entry of water vapor and the release amount of chlorine dioxide gas through an externally-coated non-woven fabric breathable bag, so that the effects of stable slow release and long-acting release are achieved.
(2) The air purifying agent provided by the invention adopts a porous adsorption carrier with a moisture absorption function, and the adsorption carrier has two effects: on one hand, the chlorine dioxide is used as a carrier for absorbing moisture, on the other hand, the generated chlorine dioxide can be absorbed in the carrier, and the effect of gradual release is achieved
(3) The preparation method of the air purifying agent provided by the invention has the advantages of convenience, simplicity, easiness in production and the like.
(4) The air purifying bag of the air purifying agent provided by the invention has the advantages of convenient storage and use, stable amount of released chlorine dioxide gas and long service life, and can be used for occasions of removing formaldehyde in new rooms and new vehicles, removing odor in refrigerators and toilets, sterilizing and disinfecting hospital wards and the like.
(5) The air purifying bag of the air purifying agent provided by the invention adopts the non-woven fabric breathable bag to control the entering amount of water vapor and the generation amount of chlorine dioxide gas, and achieves the effects of stable slow release and long-acting release.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following detailed description, but those skilled in the art will understand that the following described examples are some, not all, of the examples of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
An air purifying agent comprises the following components in percentage by mass:
10 to 45 percent of sodium chlorite and 55 to 90 percent of acid activating carrier.
The air purifying agent provided by the invention is composed of sodium chlorite and an acidic activating carrier according to a proportion. When the air purifier is used, the acidic activating carrier is adopted to firstly absorb moisture in the air to form an acidic solution, the acidic solution is contacted with sodium chlorite and is decomposed to generate chlorine dioxide gas, and the chlorine dioxide gas can be used for removing and purifying bacteria, chemical volatile matters, formaldehyde and odor in the air.
Preferably, the air purifying agent comprises the following components in percentage by mass:
20 to 40 percent of sodium chlorite and 60 to 80 percent of acid activating carrier.
The ratio of sodium chlorite to acidic activating carrier was further optimized.
Preferably, the acidic activating carrier is prepared from a porous adsorption carrier and an acidic buffer solution; more preferably, the acidic activating carrier is prepared by mixing, drying and crushing a porous adsorption carrier and an acidic buffer solution.
More preferably, the mass ratio of the acidic buffer solution to the porous adsorption carrier is 2-6: 4-8.
The amount of the porous adsorption carrier is ensured to ensure that the water absorption amount is enough to form an acidic buffer solution to promote the sodium chlorite to release chlorine dioxide. The porous adsorption carrier is used as a carrier for adsorbing moisture on one hand, and the generated chlorine dioxide can be adsorbed in the carrier on the other hand, so that the effect of gradual release is achieved.
Preferably, the pH of the acidic buffer is 4 to 6.5, and more preferably, the acidic buffer is one selected from a citric acid-sodium citrate buffer solution, a citric acid-sodium hydroxide-hydrochloric acid buffer solution, and a disodium hydrogen phosphate-citric acid buffer solution.
The acidic activating carrier is obtained by soaking the acidic activating carrier in an acidic buffer solution with the pH value of 4-6.5, so that the reaction is very stable and gentle when the acidic activating carrier reacts with sodium chlorite.
Preferably, the porous adsorption carrier comprises one or a combination of more of diatomite, montmorillonite, zeolite powder, sepiolite powder, molecular sieve and medical stone.
Diatomite, montmorillonite, zeolite powder, sepiolite powder, molecular sieve and medical stone have good moisture absorption effect.
The preparation method of the air purifying agent comprises the following steps:
mixing, drying and crushing the porous adsorption carrier and the acidic buffer solution to obtain an acidic activated carrier, and mixing the acidic activated carrier with sodium chlorite to obtain the air purifying agent.
An air purification bag filled with the air purifying agent according to any one of claims 1 to 6, wherein the amount of the air purifying agent is 50 to 200g per bag, preferably 50 to 150g per bag.
Preferably, the breathable bag is a non-woven fabric breathable bag, more preferably, the material of the non-woven fabric breathable bag is selected from one of polypropylene, polyester, chinlon, viscose fiber, acrylic fiber, polyethylene and polyvinyl chloride, and more preferably, the material is polypropylene or polyester.
The non-woven fabric breathable bag is adopted to control the entering amount of water vapor and the generation amount of chlorine dioxide gas, and the effects of stable slow release and long-acting release are achieved.
More preferably, the specification of the non-woven fabric breathable bag is 80-150 g/m2More preferably 100-120g/m2。
The air purifying agent or the air purifying bag is applied to removing formaldehyde, eliminating peculiar smell, and sterilizing.
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
Example 1
The preparation method of the air purifying agent provided by the embodiment specifically comprises the following steps:
(1) drying and crushing kieselguhr soaked by citric acid-sodium citrate buffer solution with the pH value of 5.5, wherein the mass ratio of the buffer solution to the kieselguhr is 3:7, and preparing to obtain an acidic activation carrier;
(2) 10g of sodium chlorite and 30g of the acidic activated carrier obtained in the step (1) are mixed to obtain the air purifying agent.
Example 2
The preparation method of the air purifying agent provided by the embodiment specifically comprises the following steps:
(1) drying and crushing a montmorillonite carrier soaked by a citric acid-sodium hydroxide-hydrochloric acid buffer solution with the pH value of 5, wherein the mass ratio of the buffer solution to the montmorillonite carrier is 35: 65;
(2) 15g of sodium chlorite and 25g of the acidic activated carrier obtained in the step (1) are mixed to obtain the air purifying agent.
Example 3
The preparation method of the air purifying agent provided by the embodiment specifically comprises the following steps:
(1) drying and crushing a diatomite/molecular sieve mixed carrier soaked by a disodium hydrogen phosphate-citric acid buffer solution with the pH value of 4.5, wherein the mass ratio of the buffer solution to the montmorillonite carrier is 4: 6;
(2) 50g of sodium chlorite and 100g of the acidic activated carrier obtained in the step (1) are mixed to obtain the air purifying agent.
Example 4
The preparation method of the air purifying agent provided by the embodiment specifically comprises the following steps:
(1) drying and crushing a molecular sieve carrier soaked by citric acid-sodium citrate buffer solution with the pH value of 5.5, wherein the mass ratio of the buffer solution to the montmorillonite carrier is 4: 6;
(2) 50g of sodium chlorite and 100g of the acidic activated carrier obtained in the step (1) are mixed to obtain the air purifying agent.
Examples 5 to 8
The air-purifying agents provided in examples 1 to 4 were placed in a size of 100g/m2The PET non-woven fabric breathable bag is sealed to obtain the air purification bag.
Examples 9 to 12
The air-purifying agents provided in examples 1 to 4 were placed in a size of 80g/m2The PP non-woven fabric breathable bag is sealed to obtain the air purification bag.
Examples 13 to 16
The air-purifying agents provided in examples 1 to 4 were placed in a size of 80g/m2The PET non-woven fabric breathable bag is sealed to obtain the air purification bag.
Comparative example 1
The coated chlorine dioxide disinfectant provided by application example 1 in patent document with application number of CN201110042144.X is put into a specification of 100g/m2The PET non-woven fabric breathable bag is sealed to obtain the air purification bag.
Comparative example 2
Adopting citric acid-sodium hydroxide-hydrochloric acid buffer solution with pH of 5, evaporating to dryness, mixing 30g with 10g sodium chlorite, and adding into 100g/m2The PET non-woven fabric breathable bag is sealed to obtain the air purification bag. (without adding porous water-absorbing carrier)
Comparative example 3
The air purifying agent provided in example 1 was directly exposed without sealing in a non-woven fabric permeable bag.
Experimental example 1 Formaldehyde removal test
The air-purifying bags provided in examples 5 to 16 and comparative examples 1 to 3 were set to be relatively closed at 1m3The formaldehyde removal test was performed in a glass test chamber and allowed to stand at a relative humidity of 80% and a temperature of 25 ℃ for 4 hours, the test results being shown in Table 1.
TABLE 1 Formaldehyde removal test results
The experimental result shows that the air purifying bag provided by the application can effectively remove formaldehyde with the removal rate of more than 90%, compared with the comparative example 1, the formaldehyde removal rate is greatly improved, the air purifying agent provided by the invention provides a simpler, more convenient and more effective way for slowly releasing solid chlorine dioxide, the porous solid adsorption carrier with the moisture absorption function is soaked in an acidic buffer solution with the pH value of 4-6.5, the solid adsorption carrier is mixed with sodium chlorite powder after being dried and crushed, and the entry of moisture and the release amount of chlorine dioxide gas are controlled by the wrapped non-woven fabric breathable bag, so that the effects of stable slow release and long-acting release are achieved. In comparative example 2, a porous solid adsorption carrier having a moisture absorption function was not used, and the removal effect was worse. The air purifying agent provided by the invention adopts a porous adsorption carrier with a moisture absorption function, and the adsorption carrier has two effects: on one hand, the chlorine dioxide is used as a carrier for absorbing moisture, and on the other hand, the generated chlorine dioxide can be absorbed in the carrier, so that the effect of gradual release is achieved.
Compared with the comparative example 3, the non-woven fabric breathable bag is adopted to control the entering amount of water vapor and the generation amount of chlorine dioxide gas, and the effects of stable slow release and long-acting release are achieved.
Experimental example 2 air sterilization test
The air-purifying bags provided in examples 5 to 16 and comparative examples 1 to 3 were set to be relatively closed at 1m3The air sterilization test was performed in a glass test chamber, and the sterilization results are shown in table 2.
TABLE 2 air Sterilization test results
The experimental result shows that the air purifying bag provided by the application can effectively kill bacteria in the air, the removal rate is more than 90%, and compared with the comparative example 1, the sterilization rate is greatly improved. In comparative example 2, a porous solid adsorption carrier with a moisture absorption function is not used, and the sterilization effect is worse. The air purifying agent provided by the invention adopts a porous adsorption carrier with a moisture absorption function, and the adsorption carrier has two effects: on one hand, the chlorine dioxide is used as a carrier for absorbing moisture, and on the other hand, the generated chlorine dioxide can be absorbed in the carrier, so that the effect of gradual release is achieved.
While particular embodiments of the present invention have been illustrated and described, it will be appreciated that the above embodiments are merely illustrative of the technical solution of the present invention and are not restrictive; those of ordinary skill in the art will understand that: modifications may be made to the above-described embodiments, or equivalents may be substituted for some or all of the features thereof without departing from the spirit and scope of the present invention; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; it is therefore intended to cover in the appended claims all such alternatives and modifications that are within the scope of the invention.
Claims (10)
1. The air purifying agent is characterized by comprising the following components in percentage by mass:
10 to 45 percent of sodium chlorite and 55 to 90 percent of acid activating carrier.
2. The air purifying agent as claimed in claim 1, which comprises the following components in percentage by mass:
20 to 40 percent of sodium chlorite and 60 to 80 percent of acid activating carrier.
3. The air purifying agent according to claim 1 or 2, wherein the acidic activating carrier is prepared from a porous adsorption carrier and an acidic buffer solution; preferably, the acidic activating carrier is prepared by mixing, drying and crushing a porous adsorption carrier and an acidic buffer solution.
4. The air purifying agent according to claim 3, wherein the mass ratio of the acidic buffer solution to the porous adsorption carrier is 2-6: 4-8.
5. The air purifying agent according to claim 3, wherein the pH value of the acidic buffer solution is 4-6.5, and preferably, the acidic buffer solution is one selected from citric acid-sodium citrate buffer solution, citric acid-sodium hydroxide-hydrochloric acid buffer solution and disodium hydrogen phosphate-citric acid buffer solution.
6. The air purifying agent as claimed in claim 3, wherein the porous adsorption carrier comprises one or more of diatomite, montmorillonite, zeolite powder, sepiolite powder, molecular sieve and medical stone.
7. The method for preparing an air purifying agent according to any one of claims 1 to 6, comprising the steps of:
mixing, drying and crushing the porous adsorption carrier and the acidic buffer solution to obtain an acidic activated carrier, and mixing the acidic activated carrier with sodium chlorite to obtain the air purifying agent.
8. An air purification bag filled with the air purifying agent according to any one of claims 1 to 6, wherein the amount of the air purifying agent is 50 to 200g per bag, preferably 50 to 150g per bag.
9. The air purification bag according to claim 8, wherein the air permeable bag is a non-woven fabric air permeable bag, preferably, the non-woven fabric air permeable bag is made of one material selected from polypropylene fiber, polyester fiber, nylon, viscose fiber, acrylic fiber, polyethylene fiber and polyvinyl chloride fiber, and more preferably, the non-woven fabric air permeable bag is made of polypropylene fiber or polyester fiber;
preferably, the specification of the non-woven fabric breathable bag is 80-150 g/m2Preferably 100-120g/m2。
10. Use of the air purifying agent according to any one of claims 1 to 6 or the air purifying bag according to claim 8 or 9 for removing formaldehyde, removing odor, sterilizing and disinfecting.
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| CN111659240A (en) * | 2020-06-18 | 2020-09-15 | 青岛贝斯迈特化工有限公司 | Controllable slow-release chlorine dioxide air purification micro powder and preparation method thereof |
| CN113197219A (en) * | 2021-04-24 | 2021-08-03 | 上海新平精细化学品有限公司 | Stable-state chlorine dioxide gel composition and preparation method thereof |
| CN114470288A (en) * | 2022-03-14 | 2022-05-13 | 浙江宋朝臻选科技有限公司 | Fragrance with relieving effect and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111567555B (en) * | 2020-06-24 | 2021-09-28 | 珠海佰俐生物科技有限公司 | Slow-release disinfectant, slow-release disinfection bag and preparation method thereof |
| CN113197219A (en) * | 2021-04-24 | 2021-08-03 | 上海新平精细化学品有限公司 | Stable-state chlorine dioxide gel composition and preparation method thereof |
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Application publication date: 20200505 |