CN116899534A - Formaldehyde scavenging medicament, preparation method and application - Google Patents
Formaldehyde scavenging medicament, preparation method and application Download PDFInfo
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- CN116899534A CN116899534A CN202311182394.2A CN202311182394A CN116899534A CN 116899534 A CN116899534 A CN 116899534A CN 202311182394 A CN202311182394 A CN 202311182394A CN 116899534 A CN116899534 A CN 116899534A
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 465
- 238000002360 preparation method Methods 0.000 title abstract description 30
- 230000002000 scavenging effect Effects 0.000 title abstract description 28
- 239000003814 drug Substances 0.000 title abstract description 13
- 239000002516 radical scavenger Substances 0.000 claims abstract description 79
- 239000004927 clay Substances 0.000 claims abstract description 29
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 27
- 239000008103 glucose Substances 0.000 claims abstract description 27
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229920000768 polyamine Polymers 0.000 claims abstract description 24
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 22
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 21
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000008367 deionised water Substances 0.000 claims abstract description 19
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000796 flavoring agent Substances 0.000 claims abstract description 18
- 235000013355 food flavoring agent Nutrition 0.000 claims abstract description 18
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000003915 air pollution Methods 0.000 claims abstract description 5
- GUUVPOWQJOLRAS-UHFFFAOYSA-N Diphenyl disulfide Chemical compound C=1C=CC=CC=1SSC1=CC=CC=C1 GUUVPOWQJOLRAS-UHFFFAOYSA-N 0.000 claims description 28
- QGJOPFRUJISHPQ-UHFFFAOYSA-N carbon disulphide Natural products S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 18
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 15
- 239000003054 catalyst Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- XMGMFRIEKMMMSU-UHFFFAOYSA-N phenylmethylbenzene Chemical compound C=1C=CC=CC=1[C]C1=CC=CC=C1 XMGMFRIEKMMMSU-UHFFFAOYSA-N 0.000 claims description 14
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 13
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 13
- 239000011259 mixed solution Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 11
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 10
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- 108010015776 Glucose oxidase Proteins 0.000 claims description 9
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- 235000019420 glucose oxidase Nutrition 0.000 claims description 9
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 9
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 9
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000012670 alkaline solution Substances 0.000 claims description 6
- 235000014104 aloe vera supplement Nutrition 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 5
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 claims description 4
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- 238000001179 sorption measurement Methods 0.000 abstract description 14
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- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 11
- 229960001124 trientine Drugs 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- 241001116389 Aloe Species 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
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- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
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- 238000001914 filtration Methods 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
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- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/025—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 by adsorption, e.g. preparative gas chromatography with wetted adsorbents; Chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/50—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by odorisation
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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
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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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
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The application relates to the technical field of air pollution control, in particular to a formaldehyde scavenging agent, a preparation method and application. The application discloses a formaldehyde scavenging medicament, a preparation method and application. The application relates to a formaldehyde scavenging agent which comprises the following components in parts by weight: 200-300 parts of biological carbon powder, 100-200 parts of activated clay, 50-150 parts of organic polyamine, 50-150 parts of glucose, 50-150 parts of triethanolamine, 10-100 parts of nano ferric oxide, 10-100 parts of nonionic surfactant, 5-30 parts of antioxidant, 10-50 parts of flavoring agent and 50-200 parts of deionized water; the pH value of the formaldehyde scavenging agent is 7.0-9.0; the average particle size of the nano ferric oxide is 20nm. The formaldehyde scavenging agent provided by the application removes formaldehyde in indoor air through a plurality of ways such as adsorption, catalytic decomposition, chemical reaction and the like, and improves the air quality.
Description
Technical Field
The application relates to the technical field of air pollution control, in particular to a formaldehyde scavenging agent, a preparation method and application.
Background
The quality of indoor air is closely related to the health of people. Formaldehyde is one of the most common indoor air pollutants, which is mainly derived from indoor furniture and decorative materials such as wallpaper, wall cloth, paint, and the like. Prolonged exposure to even low doses of formaldehyde may lead to chronic respiratory disease, neonatal decline in constitution, pregnancy syndrome, and even possibly cancer. The formaldehyde with high concentration has great toxic effect on the nervous system, immune system, liver and the like of people.
At present, the existing formaldehyde removal methods are mainly divided into a physical method and a chemical method. The physical method mainly utilizes physical adsorption and other methods to remove formaldehyde, and common adsorbents include active carbon, bamboo charcoal and the like. The method has the advantages of lower cost, wide application range, limited adsorption quantity, lower formaldehyde removal efficiency, frequent replacement of the adsorbent and easy secondary pollution. The chemical method mainly develops formaldehyde scavenger to remove formaldehyde and purify air through reaction principles such as oxidation, decomposition, complexation and the like. Compared with the physical method, the formaldehyde scavenging effect of the chemical method is faster, but the existing formaldehyde scavenger has the defects that the efficiency of scavenging formaldehyde is still limited, and some formaldehyde scavengers can generate byproducts or harmful gases, thus generating potential risks for human health.
Disclosure of Invention
In order to solve at least one technical problem, a formaldehyde scavenger which is safe, high in efficiency and environment-friendly is developed, and the application provides a formaldehyde scavenger, a preparation method and application.
In a first aspect, the application provides a formaldehyde scavenging agent, which comprises the following components in parts by weight: 200-300 parts of biological carbon powder, 100-200 parts of activated clay, 50-150 parts of organic polyamine, 50-150 parts of glucose, 50-150 parts of triethanolamine, 10-100 parts of nano ferric oxide, 10-100 parts of nonionic surfactant, 5-30 parts of antioxidant, 10-50 parts of flavoring agent and 50-200 parts of deionized water; the pH value of the formaldehyde scavenging agent is 7.0-9.0; the average particle size of the nano ferric oxide is 20nm.
By adopting the technical scheme, the formaldehyde removal agent provided by the application is formed by combining a plurality of components, and has the following advantages: in the first aspect, the different components in the formaldehyde scavenging agent have synergistic effect, so that the formaldehyde scavenging effect can be mutually enhanced. This combination can enhance the adsorption, decomposition and conversion capabilities of the scavenging agent to formaldehyde, thereby more effectively removing formaldehyde from the room. In the second aspect, the formaldehyde scavenging agent has better formaldehyde scavenging capability due to the combination of multiple components. Not only can adsorb and decompose formaldehyde, but also can be converted into harmless substances, and effectively improves the indoor air quality. In the third aspect, most of the adopted components are environment-friendly materials, nontoxic and harmless, and harmless to human bodies and environment. Harmful substances are not generated in the using process of the cleaning agent, and the indoor air quality and the human health are not negatively influenced. In a fourth aspect, the formaldehyde scavenger has a longer duration, and is capable of continuously scavenging formaldehyde in a room and maintaining freshness of the room air. In the fifth aspect, the formaldehyde scavenger is very simple and convenient to use, and only needs to be operated according to the use instructions. Without requiring specialized handling skills or equipment. In conclusion, the formaldehyde scavenging medicament provided by the application is formed by combining a plurality of components, has better scavenging capacity, can effectively scavenge formaldehyde, improves indoor air quality, and is safe, environment-friendly, good in long-acting performance, simple and convenient to use.
Optionally, the clearing agent further comprises 50-150 parts of aloe extract.
By adopting the technical scheme, the formaldehyde scavenging agent provided by the application further improves the air quality. In the first aspect, the aloe extract has good adsorption performance, can effectively adsorb and remove peculiar smell generated by formaldehyde decomposition, and improves indoor air quality. In the second aspect, aloe extract is rich in various natural antioxidant substances, can prevent oxidation reaction of formaldehyde in the scavenger, maintain activity of the scavenger, and prolong service life. In a third aspect, aloe vera extract has good moisturizing properties, and is capable of maintaining the wettability of the scavenger and enhancing the scavenging effect. In the fourth aspect, aloe extract contains abundant antibacterial substances, and can inhibit the growth of bacteria and mold, and prevent scavenger pollution and secondary pollution. In the fifth aspect, aloe extract is rich in various effective components, and can relieve uncomfortable feeling of pungent odor to human body, and provide more comfortable indoor environment.
Optionally, the formaldehyde scavenging agent further comprises 1-5 parts of a stabilizer; the stabilizer comprises at least one of diphenyl disulfide and diphenyl carbon disulfide.
Optionally, the organic polyamine includes at least one of ethylenediamine, diethylenetriamine and triethylenetetramine.
Optionally, the formaldehyde scavenging agent comprises 1-5 parts of stabilizer; the stabilizer consists of diphenyl disulfide and diphenyl carbon disulfide;
wherein, the weight ratio of diphenyl disulfide to diphenyl carbon disulfide is 1:1.
optionally, the organic polyamine includes ethylenediamine, diethylenetriamine and triethylenetetramine; the weight ratio of the ethylenediamine to the diethylenetriamine to the triethylenetetramine is 1-3: 2-4: 2-3.
Preferably, the weight ratio of ethylenediamine, diethylenetriamine and triethylenetetramine is 3:4:3.
optionally, the nonionic surfactant comprises at least one of octanol polyoxyethylene ether and octyl phenol polyoxyethylene ether.
In a second aspect, the present application provides a method for preparing a formaldehyde scavenging agent, the method comprising the steps of:
s1, adding biological carbon powder and glucose into an alkaline solution for dispersion, adding organic polyamine and a catalyst for mixing, and centrifuging to obtain a mixed solution;
s2, mixing the mixed solution with triethanolamine, activated clay, nano ferric oxide, nonionic surfactant, a flavoring agent, an antioxidant and deionized water under stirring, and regulating the pH value to 7.0-9.0 to obtain a formaldehyde scavenging agent;
the catalyst in the step S1 is glucose oxidase.
By adopting the technical scheme, the preparation method provided by the application has the advantages of simplicity, low cost, environmental protection, high efficiency, additional functions and the like, and is suitable for preparing formaldehyde scavenging medicaments. In particular, in a first aspect, the present application provides a preparation method that has relatively simple steps and is easy to operate and implement. In the second aspect, the required raw materials of biochar powder, glucose, organic polyamine, glucose oxidase catalyst and the like are common in the market and are easy to obtain. In the third aspect, the price of the required raw materials is relatively low, expensive reagents or equipment are not needed in the preparation process, and therefore the preparation cost is low. In the fourth aspect, most of raw materials used in the preparation method are natural substances, and the preparation method is nontoxic and harmless and has no pollution to the environment. In the fifth aspect, various components such as biological carbon powder, glucose, organic polyamine, activated clay, nano ferric oxide and the like are introduced in the preparation process, and interaction of the components can enhance the formaldehyde removal effect and improve the efficiency of removing the medicament. In the sixth aspect, components such as a flavoring agent, an antioxidant and the like are introduced into the preparation method, so that formaldehyde can be removed, and fresh fragrance and oxidation resistance protection of indoor air can be provided. In a word, the preparation method has the advantages of simplicity, low cost, environmental protection, high efficiency, additional functions and the like, and is suitable for preparing formaldehyde scavenging medicaments.
In a third aspect, the application provides an application of formaldehyde scavenging agent in the technical field of air pollution control.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the formaldehyde scavenging agent provided by the application is formed by combining multiple components, has good scavenging capacity, can effectively scavenge formaldehyde, improves indoor air quality, and is safe, environment-friendly, good in long-acting performance, simple and convenient to use.
2. The formaldehyde scavenging agent provided by the application further improves the air quality. In the first aspect, the aloe extract has good adsorption performance, can effectively adsorb and remove peculiar smell generated by formaldehyde decomposition, and improves indoor air quality. In the second aspect, aloe extract is rich in various natural antioxidant substances, can prevent oxidation reaction of formaldehyde in the scavenger, maintain activity of the scavenger, and prolong service life. In a third aspect, aloe vera extract has good moisturizing properties, and is capable of maintaining the wettability of the scavenger and enhancing the scavenging effect. In the fourth aspect, aloe extract contains abundant antibacterial substances, and can inhibit the growth of bacteria and mold, and prevent scavenger pollution and secondary pollution. In the fifth aspect, aloe extract is rich in various effective components, and can relieve uncomfortable feeling of pungent odor to human body, and provide more comfortable indoor environment.
3. The preparation method provided by the application has the advantages of simplicity, low cost, environmental protection, high efficiency, additional functions and the like, and is suitable for preparing formaldehyde scavenging medicaments.
The present application will be described in further detail with reference to examples.
In a first aspect, the application provides a formaldehyde scavenging agent, which comprises the following components in parts by weight: 200-300 parts of biological carbon powder, 100-200 parts of activated clay, 50-150 parts of organic polyamine, 50-150 parts of glucose, 50-150 parts of triethanolamine, 10-100 parts of nano ferric oxide, 10-100 parts of nonionic surfactant, 5-30 parts of antioxidant, 10-50 parts of flavoring agent and 50-200 parts of deionized water; the pH value of the formaldehyde scavenging agent is 7.0-9.0.
In a second aspect, the present application provides a method for preparing a formaldehyde scavenging agent, the method comprising the steps of:
s1, adding biological carbon powder and glucose into an alkaline solution for dispersion, adding organic polyamine and a catalyst for mixing, and centrifuging to obtain a mixed solution;
s2, mixing the mixed solution with triethanolamine, activated clay, nano ferric oxide, nonionic surfactant, a flavoring agent, an antioxidant and deionized water under stirring, and regulating the pH value to 7.0-9.0 to obtain a formaldehyde scavenging agent;
the catalyst in the step S1 is glucose oxidase.
In a third aspect, the application provides an application of formaldehyde scavenging agent in the technical field of air pollution control.
The inventor finds that the existing formaldehyde scavenger has the following problems when removing formaldehyde, and although the methods of activated carbon, bamboo charcoal and the like have the advantages of lower cost and wide application range, the adsorption capacity is limited, the formaldehyde removal efficiency is lower, the adsorbent needs to be replaced frequently, and secondary pollution is easy to form. Although the chemical method has a faster formaldehyde removal effect than the physical method, the chemical method has the following disadvantages, and the existing formaldehyde scavenger has a limited efficiency in removing formaldehyde in the first aspect. Although chemical processes are more effective than physical adsorption processes, their formaldehyde removal rate is still relatively limited, especially at high concentrations of formaldehyde. In a second aspect, existing formaldehyde scavengers are typically capable of scavenging a portion of formaldehyde in a short period of time, but over time formaldehyde is re-emitted into the room air. Therefore, these scavengers often need to be used continuously to maintain good results. In a fourth aspect, some formaldehyde scavengers may generate byproducts or harmful gases, creating a potential risk to human health. In summary, although the existing formaldehyde scavenger can reduce indoor formaldehyde pollution to a certain extent, challenges in terms of limited scavenging efficiency, secondary pollution, poor sustained effect, safety problems and the like still exist. Accordingly, there is a need for further research and development of more efficient, environmentally friendly and better lasting formaldehyde removal methods and techniques. The inventor solves part of the problems in the prior art, and provides a formaldehyde scavenger which is safe, high in efficiency and environment-friendly, wherein the formaldehyde scavenger comprises the following components in parts by weight: 200-300 parts of biological carbon powder, 100-200 parts of activated clay, 50-150 parts of organic polyamine, 50-150 parts of glucose, 50-150 parts of triethanolamine, 10-100 parts of nano ferric oxide, 10-100 parts of nonionic surfactant, 5-30 parts of antioxidant, 10-50 parts of flavoring agent and 50-200 parts of deionized water; the pH value of the formaldehyde scavenging agent is 7.0-9.0; the average particle size of the nano ferric oxide is 20nm.
Through the technical scheme, the formaldehyde removing agent provided by the application is formed by combining a plurality of components, has good removing capability, can effectively remove formaldehyde, improves indoor air quality, and is safe, environment-friendly, good in long-acting performance, simple and convenient to use.
Detailed Description
The following are specific examples of the present application.
Examples 1-21 provide formaldehyde scavenging agents, which are commercially available products, unless specifically indicated otherwise:
activated clay: hebei Ming mineral products Co., ltd., product number MZ-3000.
Glucose: the Jiaxing city Longxiao chemical industry Co., ltd., CAS number is 954-36-6.
Ethylenediamine: the CAS number is 107-15-3, jinan Liyang chemical Co., ltd.
Diethylenetriamine: the CAS number of Wuhan Ji Ye L chemical Co., ltd is 203-865-4.
Triethylene tetramine: beijing soil Hengsheng commercial Co., ltd., CAS number 116-96-9.
Nonionic surfactant: octanol polyoxyethylene ether (octanol polyoxyethylene ether C8EO 10) was purchased from Nantoon chemical industry Co., ltd, under the designation 045.
Nonionic surfactant: octyl phenol polyoxyethylene ether (octyl phenol polyoxyethylene ether OP-10) is purchased from Wuhan Kernel pharmaceutical chemical Co., ltd., CAS number 9063-89-2.
Nano iron oxide purchasing manufacturer: beijing De island gold technology Co., ltd., CAS number: 7440.
examples 1 to 5
Examples
The embodiment provides a formaldehyde scavenging agent, which comprises the following components in parts by weight: 200g of biological carbon powder, 100g of activated clay, 50g of organic polyamine, 50g of glucose, 50g of triethanolamine, 10g of nano ferric oxide, 10g of nonionic surfactant, 10g of flavoring agent, 5g of antioxidant and 50g of deionized water; the pH value of the formaldehyde scavenging agent is 7.0.
The preparation method of the biological carbon powder comprises the following steps:
firstly, removing dust on the surfaces of rice hulls by using deionized water, drying at 80 ℃, weighing 500g of rice hulls, placing the rice hulls in a reactor, adding 2500mL of 10% hydrochloric acid, mechanically stirring for 2 hours at 60 ℃, cooling to room temperature, washing to neutrality by using the deionized water, adding 2500mL of 5% sodium hydroxide solution, mechanically stirring for 3 hours at 90 ℃, cooling to room temperature, washing to neutrality by using the deionized water, and drying the solid at 80 ℃. Calcining the dried rice hulls after treatment in a muffle furnace at 300 ℃ for 3 hours, and cooling to obtain rice hull carbon powder, namely biological carbon powder.
The preparation method of the formaldehyde scavenging agent comprises the following steps:
s1, adding biological carbon powder and glucose into an alkaline solution for dispersion, adding organic polyamine and a catalyst for mixing, and centrifuging to obtain a mixed solution;
s2, mixing the mixed solution with triethanolamine, activated clay, nano ferric oxide, nonionic surfactant, flavoring agent, antioxidant and deionized water under stirring, and regulating the pH to 7.0 to obtain a formaldehyde removal reagent;
the catalyst in the step S1 is glucose oxidase.
The alkaline solution in the step S1 is sodium hydroxide aqueous solution with the mass concentration of 2.5 percent.
The organic polyamine used in this example was ethylenediamine. The nonionic surfactant used in this example is octanol polyoxyethylene ether. The flavoring agent used in this example is aloe essential oil. The antioxidant used in this example was vitamin C. The average particle size of the nano-iron oxide used in this example was 20nm.
Examples 2 to 5 differ from example 1 in that the weight of some of the components in examples 2 to 5 differs from example 1, the differences being seen in Table 1.
Table 1-see Table 1 for a part of the differences between examples 2-5 and example 1
Examples 6 to 8
Examples 6 to 8 are different from example 5 in that examples 6 to 8 further comprise aloe vera extract. See Table 2 for differences between examples 6-8 and example 5.
The preparation method of aloe extract comprises the following steps:
thoroughly cleaning fresh and healthy aloe leaves with clear water to remove dirt and impurities on the surfaces, peeling off the outer skins of the aloe leaves by using a blade, only keeping transparent aloe gel, putting the peeled aloe gel into a stirrer, adding a proper amount of solvent 95% ethanol, uniformly stirring, standing for 3 hours, filtering an extracted aloe gel solution to remove suspended solid particles and impurities, and removing the solvent in the solution by evaporation to obtain an aloe extract.
The preparation method of example 6 is as follows:
s1, adding biological carbon powder and glucose into an alkaline solution for dispersion, adding organic polyamine and a catalyst for mixing, and centrifuging to obtain a mixed solution;
s2, mixing the mixed solution with triethanolamine, activated clay, nano ferric oxide, nonionic surfactant, flavoring agent, antioxidant, aloe extract and deionized water, stirring and mixing to adjust the pH to 7.0, and obtaining a formaldehyde scavenging medicament; the catalyst in the step S1 is glucose oxidase.
Table 2-see Table for a section of the difference between examples 6-8 and example 5
Examples 9 to 12
Embodiments 9-12 differ from embodiment 8 in that embodiments 9-12 further comprise a stabilizer comprising at least one of diphenyl disulfide and diphenyl carbon disulfide. See Table 3 for differences between examples 9-12 and example 8.
The preparation method of example 9 differs from that of example 8 in the following points:
s2, mixing the mixed solution with triethanolamine, activated clay, nano ferric oxide, a nonionic surfactant, a flavoring agent, an antioxidant, aloe extract, diphenyl disulfide and deionized water under stirring to obtain a formaldehyde scavenging agent; the catalyst in the step S1 is glucose oxidase.
The preparation method of example 10 differs from that of example 8 in the following points:
s2, mixing the mixed solution with triethanolamine, activated clay, nano ferric oxide, a nonionic surfactant, a flavoring agent, an antioxidant, aloe extract, diphenyl carbon disulfide and deionized water under stirring to obtain a formaldehyde removal agent; the catalyst in the step S1 is glucose oxidase.
The preparation methods of examples 11 to 12 are different from example 8 in the following points:
s2, mixing the mixed solution with triethanolamine, activated clay, nano ferric oxide, a nonionic surfactant, a flavoring agent, an antioxidant, aloe extract, diphenyl disulfide, diphenyl carbon disulfide and deionized water under stirring to obtain a formaldehyde removal agent; the catalyst in the step S1 is glucose oxidase.
Table 3-see Table for a section of the difference between examples 9-12 and example 8
Examples 13 to 17
Examples 13 to 17 are different from example 12 in that the organic polyamine is selected differently in examples 13 to 17, and the difference is shown in Table 4.
Table 4-see Table for a section of the difference between examples 13-17 and example 12
Examples 18 to 19
Examples 18 to 19 differ from example 16 in that the nonionic surfactant used is different. See table 5 for differences.
Table 5-see Table for a section of the difference between examples 18-19 and example 16
Example 20
This example differs from example 19 in that the pH of the formaldehyde scavenging reagent prepared in step S2 of this example was adjusted to 8.0.
Example 21
The difference between this example and example 19 is that the formaldehyde scavenger prepared in step S2 of this example has a pH of 9.0.
Comparative examples 1 to 3
The difference between this comparative example and example 1 is that this comparative example does not include glucose in the preparation of formaldehyde scavenger.
Comparative example 2
The difference between this comparative example and example 1 is that this comparative example does not include activated clay in the preparation of formaldehyde scavengers.
Comparative example 3
The difference between this comparative example and example 1 is that this comparative example does not include glucose and activated clay in the preparation of formaldehyde scavenger.
Performance test experiment, experiment 1
The formaldehyde scavenging agents obtained in examples 1 to 21 and comparative examples 1 to 3 were diluted 200 times, and the formaldehyde scavenging rate was measured by using the test method for scavenging ability of formaldehyde scavenger for artificial boards and products thereof of GB/T35239-2017, and the time of placement after spraying at the test was 24 hours, 48 hours, 120 hours, 240 hours and 480 hours according to national standards, respectively, and the time of sealing the sprayed samples and the comparative samples in the vinyl sealed bags was 24 hours unchanged. The water content of the artificial board used for detection is 14.5%, the size is 1.8cm multiplied by 10cm, and the density is 0.65cm 3 The formaldehyde emission per gram was 15.4mg/100g. The specific test results are shown in Table 6.
TABLE 6 Performance test results summary table
Analysis of results:
referring to the results of Table 6, it can be seen that the formaldehyde scavenging agent obtained in examples 1 to 21 of the present application has high formaldehyde scavenging efficiency.
Examples 2 to 5 differ from example 1 in that the weight of some of the components in examples 2 to 5 is different from example 1. The results of Table 1 and Table 6 show that the formaldehyde scavenger comprising biochar powder, activated clay, organic polyamine, glucose, triethanolamine, nano iron oxide, nonionic surfactant, flavoring agent, antioxidant and deionized water has good formaldehyde removal effect. The reason for this is probably that the biochar powder and the activated clay are commonly used adsorption materials, have larger specific surface area and pore structure, and can effectively adsorb formaldehyde molecules. The organic polyamine has hydrophilicity and formaldehyde affinity, and can chemically react with formaldehyde molecules to form stable products, thereby reducing formaldehyde release. Glucose is a reducing agent that can chemically react with formaldehyde to form a stable product, thereby reducing the concentration of formaldehyde. The organic polyamine, triethanolamine and other compounds can react with formaldehyde to neutralize toxicity and form stable compounds, so as to reduce volatilization and release of formaldehyde. The nano ferric oxide has larger specific surface area and high activity, can chemically react with formaldehyde, and converts the formaldehyde into harmless substances and harmless products. The nonionic surfactant has good emulsifying and dispersing properties, can uniformly disperse formaldehyde molecules in the solution, increases the contact area of the formaldehyde molecules with other components, and improves the removal effect. The flavoring agent can cover the pungent smell of formaldehyde, so that the comfort of use is improved; the antioxidant can prolong the effective period of the preparation and maintain its stability. Deionized water is used as a basic solution of the medicament, does not contain impurities and ions, and can avoid interference on formaldehyde removal effect. In conclusion, the comprehensive actions of various components in the formaldehyde scavenging medicament, including adsorption, chemical reaction, oxidation and other mechanisms, can effectively reduce the concentration of formaldehyde and realize good formaldehyde removal effect.
Examples 6-8 differ from example 5 in that examples 6-8 also include aloe vera extract, the addition of which can further improve air quality. In the first aspect, the aloe extract has good adsorption performance, can effectively adsorb and remove peculiar smell generated by formaldehyde decomposition, and improves indoor air quality. In the second aspect, aloe extract is rich in various natural antioxidant substances, can prevent oxidation reaction of formaldehyde in the scavenger, maintain activity of the scavenger, and prolong service life. In a third aspect, aloe vera extract has good moisturizing properties, and is capable of maintaining the wettability of the scavenger and enhancing the scavenging effect. In the fourth aspect, aloe extract contains abundant antibacterial substances, and can inhibit the growth of bacteria and mold, and prevent scavenger pollution and secondary pollution. In the fifth aspect, aloe extract is rich in various effective components, and can relieve uncomfortable feeling of pungent odor to human body, and provide more comfortable indoor environment. Examples 9 to 12 are different from example 8 in that examples 9 to 12 further comprise at least one of diphenyl disulfide and diphenyl carbon disulfide, and it is understood from the results of tables 2 and 6 that the formaldehyde removal effect of the formaldehyde removal agent can be further improved by adding at least one of diphenyl disulfide and diphenyl carbon disulfide on the basis of example 8. The reason for this may be that in the first aspect, diphenyl disulfide and diphenyl carbon disulfide are organic sulfur compounds, which have strong reducibility and affinity. They can react with aldehydes, neutralize their toxicity, and convert them into relatively harmless thiols, thereby enhancing the scavenging effect of aldehydes. In a second aspect, diphenyl disulphide and diphenyl carbon disulphide may act as stabilisers to help protect the active ingredients in the medicament and to extend its useful life. In a third aspect, the diphenyl disulfide and the diphenyl carbon disulfide have certain antibacterial and antiseptic effects, and can delay the deterioration and bacterial growth of the medicament.
Examples 13 to 17 differ from example 12 in the selection of the organic polyamine, and the results of tables 4 and 6 show that when the weight ratio of ethylenediamine, diethylenetriamine and triethylenetetramine is 3:4:3, the formaldehyde removing effect is optimal. The reason for this may be that ethylenediamine, diethylenetriamine and triethylenetetramine are organic compounds containing a plurality of amine groups and have strong nucleophilicity and ligand properties. They can react with formaldehyde to form stable condensation products, reducing formaldehyde volatilization and release. Complementary effects may exist between different polyamines, and the formaldehyde removal effect is enhanced by the mutual coordination and synergism. In the application, the proportion of ethylenediamine, diethylenetriamine and triethylenetetramine can cause more interaction between the ethylenediamine, diethylenetriamine and triethylenetetramine, thereby improving the formaldehyde removal effect.
Examples 20 to 21 are different from example 19 in that the formaldehyde scavenger has a different pH, and referring to the test results in table 6, it is clear that the formaldehyde scavenger has an optimal scavenging effect when the pH of the formaldehyde scavenger is 8.0.
Comparative example 1 differs from example 1 in that comparative example 1 does not include glucose in the preparation of the formaldehyde scavenging agent. Referring to the test results of Table 6, the formaldehyde removal effect of comparative example 1 was significantly lower than that of example 1.
Comparative example 2 differs from example in that comparative example 2 does not include activated clay in the preparation of the formaldehyde scavenging agent. Referring to the test results of Table 6, it can be seen that the formaldehyde removal effect of comparative example 2 is significantly lower than that of example 1.
Comparative example 3 differs from example 1 in that comparative example 3 does not include activated clay and glucose in the preparation of formaldehyde scavenging agent. Referring to the test results provided in Table 6, the formaldehyde removal effect of comparative example 3 was significantly lower than that of example 1.
The inventors have speculated that when glucose and activated clay are used simultaneously in combination with the detection results of comparative examples 1 to 3 and example 1, there is a synergistic effect, probably because glucose and activated clay have different mechanisms for removing formaldehyde, respectively, and their combined use may produce a synergistic effect, so as to improve the formaldehyde removal efficiency. Glucose is a reducing agent capable of chemically reacting with formaldehyde to form a stable product, thereby reducing the concentration of formaldehyde. Glucose has formaldehyde affinity, can react with formaldehyde molecules and convert it into harmless substances. The activated clay is a common adsorption material, has a larger specific surface area and a pore structure, and can effectively adsorb formaldehyde molecules. The adsorption of the activated clay is realized by surface chemical reaction and physical adsorption, and formaldehyde can be effectively removed. When glucose and activated clay are present at the same time, they may interact to enhance each other's formaldehyde removal ability. Glucose can chemically react with formaldehyde to convert it into harmless substances, while activated clay can adsorb formaldehyde molecules to remove them from the environment. Therefore, the combined use of glucose and activated clay may produce a synergistic effect, thereby improving the formaldehyde removal effect.
In conclusion, the formaldehyde scavenging agent prepared by the application has better scavenging capability, can effectively scavenge formaldehyde, improves indoor air quality, and is safe, environment-friendly, good in long-acting performance, simple and convenient to use and easy to use.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. The formaldehyde scavenging agent is characterized by comprising the following components in parts by weight: 200-300 parts of biological carbon powder, 100-200 parts of activated clay, 50-150 parts of organic polyamine, 50-150 parts of glucose, 50-150 parts of triethanolamine, 10-100 parts of nano ferric oxide, 10-100 parts of nonionic surfactant, 5-30 parts of antioxidant, 10-50 parts of flavoring agent and 50-200 parts of deionized water; the pH value of the formaldehyde scavenging agent is 7.0-9.0;
the average particle size of the nano ferric oxide is 20nm.
2. The formaldehyde scavenger according to claim 1, further comprising 50-150 parts of aloe vera extract.
3. The formaldehyde scavenger according to claim 1, wherein the formaldehyde scavenger further comprises 1-5 parts of a stabilizer; the stabilizer comprises at least one of diphenyl disulfide and diphenyl carbon disulfide.
4. A formaldehyde scavenger according to claim 3, wherein the formaldehyde scavenger comprises 1-5 parts of stabilizer; the stabilizer consists of diphenyl disulfide and diphenyl carbon disulfide;
wherein, the weight ratio of diphenyl disulfide to diphenyl carbon disulfide is 1:1.
5. the formaldehyde scavenger according to claim 1, wherein the organic polyamine comprises at least one of ethylenediamine, diethylenetriamine, and triethylenetetramine.
6. The formaldehyde scavenging agent of claim 5 wherein the organic polyamine comprises ethylenediamine, diethylenetriamine and triethylenetetramine; the weight ratio of the ethylenediamine to the diethylenetriamine to the triethylenetetramine is 1-3: 2-4: 2-3.
7. The formaldehyde scavenger according to claim 6, wherein the weight ratio of ethylenediamine, diethylenetriamine and triethylenetetramine is 3:4:3.
8. the formaldehyde scavenger according to claim 1, wherein the nonionic surfactant comprises at least one of octanol polyoxyethylene ether, octyl phenol polyoxyethylene ether.
9. A method of preparing a formaldehyde scavenger according to claim 1, comprising the steps of:
s1, adding biological carbon powder and glucose into an alkaline solution for dispersion, adding organic polyamine and a catalyst for mixing, and centrifuging to obtain a mixed solution;
s2, mixing the mixed solution with triethanolamine, activated clay, nano ferric oxide, nonionic surfactant, a flavoring agent, an antioxidant and deionized water under stirring, and regulating the pH value to 7.0-9.0 to obtain a formaldehyde removal agent;
the catalyst in the step S1 is glucose oxidase.
10. Use of a formaldehyde scavenger according to claim 1 in the field of air pollution control technology.
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