CN107243321B - A kind of air cleaning material of long-acting removal organic polluter - Google Patents
A kind of air cleaning material of long-acting removal organic polluter Download PDFInfo
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- CN107243321B CN107243321B CN201710273364.0A CN201710273364A CN107243321B CN 107243321 B CN107243321 B CN 107243321B CN 201710273364 A CN201710273364 A CN 201710273364A CN 107243321 B CN107243321 B CN 107243321B
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- active carbon
- air cleaning
- cleaning material
- removal organic
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- 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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- 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
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/32—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of manganese, technetium or rhenium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a kind of air cleaning material of long-acting removal organic polluter, preparation method is the active carbon poly-dopamine that will be acidified or alkalize；Then the active carbon of poly-dopamine modified lithium is added in the composite particles solution of silicon dioxide coated nano manganese dioxide, 5 hours of stirring at normal temperature, filters, a kind of air cleaning material of long-acting removal organic polluter is obtained after vacuum drying.Active carbon is both used as adsorbent in the present invention, solidified carrier as warm catalyst nanocatalyst again, the warm catalyst of nanometer is loaded on active carbon securely by dopamine, avoid the migration and loss of nanoparticle, it can be carried out under conditions of unglazed, have that simple process, performance be long-acting, long-acting removal organic polluter performance of safety and environmental protection.
Description
Technical field:
The invention belongs to environmental friendly material fields, and in particular to a kind of air cleaning material of long-acting depollution object,
Preparation method is based on bionical polymeric chemical reaction method.
Technical background:
Organic pollutant is generally acknowledged virulent substance, has virulent property to the murder by poisoning of human body.In recent years, house fitting is made
Social concerns hot spot is had become at the research of Indoor air organic pollution and harm to the human body.Organic pollutant is to human health
Very harmful, harm, high concentration organic contamination will be generated to respiratory system by being greater than 0.1mg/m3 than indoor air formaldehyde content
Object is all harmful to nervous system, immune system, liver.
Currently, the processing method of indoor orgnic compound pollution mainly uses air purifying preparation, fresh air system and air net
Change device purified treatment.For fresh air system and air purifier purified treatment, effectively purify the air of a room middle organic contamination
Object is mainly realized by scavenging material.The material for core master of removal organic polluter in current and fresh air system and air purifier
There is the active carbon of absorption property or loads the active carbon of photocatalyst.The specific surface area of high grade activated carbon very big (up to 3000
Meters squared per gram), it is non-polar adsorbent, there is very strong hydrophobicity, therefore active carbon has the apolar substance of benzene series species
There is good adsorptivity, but has the characteristics that easily to be saturated and as the variation of environmental condition discharges again by absorption.Due to mesh
The utilization efficiency of preceding photocatalyst visible light is very low, so the active carbon for loading photocatalyst needs to provide ultraviolet light source apparatus, in this way
On the one hand the complexity and cost of device are improved, on the other hand artificial ultraviolet source will cause the dirt of another form
Dye.In addition, common activated carbon supported nanoparticle is easy to fall off.Therefore from practical angle, using active carbon as sky
Gas purification needs to advanced optimize with the performance that material eliminates organic pollutant.
Summary of the invention:
Technological deficiency in terms of to solve current active carbon and photocatalyst removal organic polluter, the present invention provide a kind of length
Imitate the air cleaning material of removal organic polluter.
The purpose of the present invention is what is be achieved through the following technical solutions: a kind of air cleaning use of long-acting removal organic polluter
Material is prepared by bionical polymeric chemical reaction method, is included the following steps:
(1) active carbon that 20 parts by weight is acidified or alkalized, which is added in dopamine solution, to react 20 hours, and filtration drying obtains
To the active carbon of poly-dopamine modified lithium；
(2) 1 parts by weight manganese dioxide is put into the dispersing agent being made of second alcohol and water according to volume ratio 1:9, stirring
30 minutes, the manganese dioxide solution that concentration is 1 grams per liter is obtained, ethyl orthosilicate is added；Ethyl orthosilicate and manganese dioxide
Mass ratio is 1:10.
(3) ammonium hydroxide is added dropwise and adjusts PH to 8.5, the sodium hydroxide that concentration is 0.1mol/L is added dropwise under agitation in filtering
Solution adjusts pH value to 12, the reaction was continued 2h, obtains the composite particles solution of silicon dioxide coated nano manganese dioxide；
(4) active carbon of above-mentioned (1) poly-dopamine modified lithium being added to (3) solution, 5 hours of stirring at normal temperature filter,
120 degrees Celsius of 12 hours of vacuum drying, obtain a kind of air cleaning material of long-acting removal organic polluter.
Further, the concentration of dopamine solution used in step 1) is 2g/L；
Further, the mass fraction of ammonium hydroxide used in step 3) is 10%；
The beneficial effects of the present invention are: active carbon is not only used as adsorbent in the present invention, but also is catalyzed as nanometer temperature catalyst
The solidified carrier of agent has the advantages that simple process, is easy to industrial production.Nanometer temperature catalyst catalyst in the present invention has normal
Temperature catalytic decomposition organic pollutant is the effect of carbon dioxide and water, and the participation of no light requirement, nanoparticle, which is securely loaded, to be not easy
Fall off, the performance of the absorption organic pollutant of collaboration acidification or alkalization active carbon, the shortcomings that overcoming adsorption saturation, have it is long-acting,
The performance of safe and environment-friendly removal organic polluter.
Detailed description of the invention:
Process flow chart Fig. 1 of the invention；
Fig. 2 material of the present invention removes effect of formaldehyde；
Fig. 3 material of the present invention removes toluene effect.
Specific embodiment:
Embodiment 1:
1) 20 grams of acidifications or alkalization active carbon are added to 150 milliliters containing reacting 20 hours in 2g/L dopamine liquid,
It will obtain the active carbon of poly-dopamine modified lithium；
2) 1 gram of nano-manganese dioxide is put into the dispersing agent (volume ratio 1:9) of 150 milliliters of ethanol/waters, stirs 30 points
Clock adds 500 microlitres of ethyl orthosilicate (mass ratio of ethyl orthosilicate and manganese dioxide is 1:10)；
3) 5 milliliters of ammonium hydroxide of 10wt% are added dropwise, adjusts PH to 8.5, filtering, under agitation, concentration, which is added dropwise, is
50 milliliters of the sodium hydroxide solution of 0.1mol/L adjusts pH value to 12, the reaction was continued 2h, obtains silicon dioxide coated nano dioxy
Change the composite particles solution of manganese；
4) active carbon of above-mentioned poly-dopamine modified lithium is added to 3) solution, 5 hours of stirring at normal temperature, filtering, 120 is Celsius
Degree 12 hours of vacuum drying, obtain a kind of air cleaning material of long-acting removal organic polluter.
Fig. 2 is resulting materials except effect of formaldehyde figure, it can be seen from the figure that comparing with absorbent charcoal material, material of the present invention
Material is greatly improved except effect of formaldehyde.Fig. 3 is resulting materials except toluene effect picture, it can be seen from the figure that this hair
The toluene effect of removing of bright material is significantly better than normal activated carbon.
Claims (3)
1. a kind of air cleaning material of long-acting removal organic polluter, it is characterised in that: pass through bionical polymeric chemical reaction method
It is prepared, includes the following steps:
(1) active carbon that 20 parts by weight is acidified or alkalized, which is added in dopamine solution, to react 20 hours, and filtration drying is gathered
The modified active carbon of dopamine；
(2) 1 parts by weight manganese dioxide is put into the dispersing agent being made of second alcohol and water according to volume ratio 1:9, stirs 30 points
Clock obtains the manganese dioxide solution that concentration is 1 grams per liter, adds ethyl orthosilicate；The quality of ethyl orthosilicate and manganese dioxide
Than being 1:10；
(3) ammonium hydroxide is added dropwise and adjusts pH to 8.5, it is molten that the sodium hydroxide that concentration is 0.1mol/L is added dropwise under agitation in filtering
Liquid adjusts pH value to 12, the reaction was continued 2h, obtains the composite particles solution of silicon dioxide coated nano manganese dioxide；
(4) active carbon of poly-dopamine modified lithium obtained by above-mentioned steps (1) is added to step (3) acquired solution, stirring at normal temperature 5
Hour, filtering, obtains a kind of air cleaning material of long-acting removal organic polluter at 120 degrees Celsius of 12 hours of vacuum drying.
2. a kind of air cleaning material of long-acting removal organic polluter according to claim 1, it is characterised in that: step
Suddenly the concentration of dopamine solution used in (1) is 2g/L.
3. a kind of air cleaning material of long-acting removal organic polluter according to claim 1, it is characterised in that: step
Suddenly the mass fraction of ammonium hydroxide used in (3) is 10%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710273364.0A CN107243321B (en) | 2017-04-21 | 2017-04-21 | A kind of air cleaning material of long-acting removal organic polluter |
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| CN201710273364.0A CN107243321B (en) | 2017-04-21 | 2017-04-21 | A kind of air cleaning material of long-acting removal organic polluter |
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| CN107243321A CN107243321A (en) | 2017-10-13 |
| CN107243321B true CN107243321B (en) | 2019-07-26 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108126654A (en) * | 2017-12-08 | 2018-06-08 | 北京东方计量测试研究所 | A kind of material for air purification, preparation method and application |
| CN113145110B (en) * | 2021-05-08 | 2023-03-17 | 贵州省材料产业技术研究院 | Silica sol modified ozone catalytic oxidation material and preparation method thereof |
| CN113171796B (en) * | 2021-05-08 | 2023-03-17 | 贵州省材料产业技术研究院 | Titanium sol modified ozone catalytic oxidation material and preparation method thereof |
| CN114849671B (en) * | 2022-06-10 | 2022-11-08 | 大连科利德光电子材料有限公司 | Impurity adsorbent, preparation method and method for purifying trimethylaluminum by using impurity adsorbent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741081A (en) * | 2015-03-25 | 2015-07-01 | 杭州笨鸟环保科技有限公司 | Preparation method of filtering core material for air purifier for eliminating formaldehyde in long-acting manner |
| CN105107524A (en) * | 2015-09-24 | 2015-12-02 | 杭州钛合智造电器有限公司 | Nano-composite material for catalytically decomposing formaldehyde at normal temperature and method for preparing nano-composite material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104741081A (en) * | 2015-03-25 | 2015-07-01 | 杭州笨鸟环保科技有限公司 | Preparation method of filtering core material for air purifier for eliminating formaldehyde in long-acting manner |
| CN105107524A (en) * | 2015-09-24 | 2015-12-02 | 杭州钛合智造电器有限公司 | Nano-composite material for catalytically decomposing formaldehyde at normal temperature and method for preparing nano-composite material |
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