CN104741081B - The preparation method of the long-acting air purifier material for core except formaldehyde - Google Patents
The preparation method of the long-acting air purifier material for core except formaldehyde Download PDFInfo
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- CN104741081B CN104741081B CN201510131107.4A CN201510131107A CN104741081B CN 104741081 B CN104741081 B CN 104741081B CN 201510131107 A CN201510131107 A CN 201510131107A CN 104741081 B CN104741081 B CN 104741081B
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Abstract
The invention discloses a kind of preparation method of the long-acting air purifier material for core except formaldehyde, the method is by souring activity charcoal SOCl2Modified, by nano-manganese dioxide with silane coupler modified；Then modified activated carbon of changing is carried out crosslinking with modified nano-manganese dioxide, obtain a kind of long-acting air purifier material for core except formaldehyde.In the present invention, activated carbon is both as adsorbent, and the solidified carrier as warm catalyst nanocatalyst, have process is simple, performance long-acting, safety and environmental protection except formaldehyde performance.
Description
Technical field
The invention belongs to environmental friendly material field is and in particular to a kind of long-acting air purifier material for core except formaldehyde
Preparation method, its preparation method be based on coupled chemical reactions method.
Technical background
The strong noxious material that formaldehyde is well recognized as, it has strong toxicity to the murder by poisoning of human body.In recent years, house fitting causes room
Interior air formaldehyde pollution and the research to harm have become social concerns focus.Formaldehyde is very harmful to health,
Indoor air formaldehyde content is more than 0.1 mg/m3Harm will be produced to respiratory system, high-concentration formaldehyde is to nervous system, immunity
System, liver have harm, by World Health Organization (WHO)（WHO）It is defined as suspicious teratogenesis, carcinogen.
At present, the processing method of Formaldehyde Pollution of Indoor Air mainly adopts formaldehyde scavenger and air purifier purified treatment.Just
For air purifier, its middle formaldehyde that effectively purifies the air of a room mainly is realized by material for core.Air purifier at present
In except formaldehyde material for core mainly have absorption property activated carbon or load photocatalyst activated carbon.High grade activated carbon
Specific surface area is very big（Up to 3000 meters squared per gram）, it is non-polar adsorbent, there is very strong hydrophobicity, therefore activated carbon pair
The apolar substance of benzene series species has good adsorptivity, but very poor to polar molecule formaldehyde absorbing, therefore activated carbon
The method that absorption cannot effectively be passed through removes the formaldehyde of in the air.Additionally due to only the method by absorption carries out air cleaning, deposit
The shortcoming easily again discharge in adsorption saturation and with changes in environmental conditions.Due to current photocatalyst visible ray utilization ratio very
Low, thus load photocatalyst activated carbon need provide ultraviolet light source apparatus, so on the one hand improve device complexity and
Cost, on the other hand artificial ultraviolet source can cause the pollution of another form.Therefore from practical angle, using activity
The performance that charcoal eliminates formaldehyde as filtering element for air purifier material needs to optimize further.
Content of the invention
Present invention aims to the deficiencies in the prior art, provide a kind of long-acting air purifier filter except formaldehyde
The preparation method of core material, to solve the technological deficiency that current activated carbon removes formaldehyde aspect
The purpose of the present invention is achieved through the following technical solutions：A kind of long-acting air purifier filter element except formaldehyde
The preparation method of material, the method comprises the steps：
（1）Activated carbon after the acidifying of 20 weight portions is added to SOCl2In liquid, and flow back under 40 ~ 50 degrees Celsius
Reaction 2 hours, obtains chloride activated carbon；Activated carbon and SOCl2The mass volume ratio of liquid is 1 ~ 2g/ml；
（2）The manganese dioxide of 1 weight portion is put in the mixed solution of second alcohol and water（The volume ratio of second alcohol and water is 4:
1）, stir 30 minutes, obtain manganese dioxide solution；Manganese dioxide with the mass volume ratio of the mixed solution of second alcohol and water is
0.005~0.01g/ml；
（3）The silane coupler of 0.02 weight portion is added in manganese dioxide solution, obtains silane coupler modified
Nanometer titanium dioxide manganese solution；
（4）The chloride activated carbon that step 1 is obtained is added to the silane coupler modified nano-silica that step 3 obtains
Change in manganese solution, stir 1 hour, vacuum filtration；
（5）Step 4 sucking filtration product is vacuum dried under 120 ~ 130 degrees Celsius, obtains the long-acting air cleaning except formaldehyde
Device material for core.
Further, step（1）In activated carbon be souring activity charcoal.
Further, step（3）Described in silane coupler be amino silicane coupling agent.
The beneficial effects of the present invention is：1. in the present invention activated carbon both as adsorbent, and as nanocatalyst
Solidified carrier, has process is simple, is easy to industrial advantage.2. the nanocatalyst in the present invention has constant temperature catalyzing and divides
Solution formaldehyde is the effect of carbon dioxide and water, the performance of the formaldehyde adsorption of collaborative souring activity charcoal, the shortcoming overcoming adsorption saturation,
Have long-acting, safe and environment-friendly except formaldehyde performance.3. adopt chemical method by manganese dioxide load and activated carbon, between the two
By chemical bond strong bonded, difficult for drop-off so that the material of the present invention has the performance of lasting catalytic purification formaldehyde.
Brief description
The process chart of Fig. 1 present invention；
Fig. 2 material of the present invention except effect of formaldehyde.
Specific embodiment
The preparation method of the long-acting air purifier material for core except formaldehyde of the present invention.To work in prior art
Property charcoal load the manganese dioxide method that uses physics, the defect of physical method is with reference to relative loose, insecure, in air
Purify easy to fall off during using, lead to catalyst loss.The present invention is by souring activity charcoal SOCl2Modified, by nano-silica
Change manganese with silane coupler modified, then modified activated carbon of changing is carried out crosslinking with modified nano-manganese dioxide, lead to
Manganese dioxide is bonded on activated carbon the method crossing chemical bonding, compared to existing physical deposition method, manganese dioxide with
There is between activated carbon higher interaction, pass through chemical bond strong bonded between the two, difficult for drop-off so that the present invention
Material has the performance of lasting catalytic purification formaldehyde.The material for core of the present invention is implemented to obtain especially by following steps：
（1）Due to the not active group of activated carbon surface, activated carbon should be acidified first；The method of activated carbon acidifying
May be referred to document【The Yellow River, Liu Hongbo, Gao Saisai, Luo Sen, Li Yongping, sour modified activated carbon is at heavy metal with ammonia nitrogen waste water
Application in reason.《Sichuan environment》, 2013,32（5）131-134】.
（2）Activated carbon after acidifying is carried out amidatioon, specially：Activated carbon after acidifying is added to SOCl2Liquid
In, and in 40 ~ 50 degrees Celsius of lower back flow reaction 2 hours, obtain chloride activated carbon；Activated carbon and SOCl2The mass body of liquid
Long-pending ratio is 1 ~ 2g/ml；
（3）The coupling modifier of manganese dioxide, specially：Manganese dioxide is put in the mixed solution of second alcohol and water, stirs
Mix 30 minutes, be subsequently adding silane coupler, after stirring 30 minutes, obtain silane coupler modified nano-manganese dioxide molten
Liquid；In order that nano-manganese dioxide effectively disperses, in the mixed solution of above-mentioned second alcohol and water, the volume ratio of second alcohol and water is 4:1；
Concentration of alcohol is too high or too low, and all impact nano-manganese dioxide disperses and leads to manganese dioxide to be reunited；In order that manganese dioxide obtains
To optimal dispersion, manganese dioxide is 0.005 ~ 0.01g/ml with the mass volume ratio of the mixed solution of second alcohol and water；Titanium dioxide
The mass ratio of manganese and silane coupler is 50：1 is optimal proportion, this is because ratio is bigger than normal, manganese dioxide content is excessive, dioxy
The group changing manganese surface fully can not be coupled with coupling agent, and ratio is too small, and silane coupler is on the high side, and silane coupler can occur certainly
Poly-, and then lead to product property to be deteriorated.
（4）Modified activated carbon is mixed with modified manganese dioxide, carries out 1 hour of cross-linking reaction, vacuum is taken out
Filter；Due to the quantity of activated carbon surface carboxyl functional group and manganese dioxide surface hydroxyl quantity equal when, now activated carbon and two
The amount of manganese oxide is optimal proportion, optimizes and shows that activated carbon is 20 with the mass ratio of manganese dioxide:1.Ratio is excessive, and activated carbon is lived
Property the manganese dioxide amount that is coupled of charcoal not enough, adsoption catalysis eradicating efficacy is limited, and ratio is too small, and excessive manganese dioxide can block
The adsorption hole of activated carbon, also can affect the catalytic removal effect of material.
（5）Step 4 sucking filtration product is vacuum dried under 120 ~ 130 degrees Celsius, obtains the long-acting air cleaning except formaldehyde
Device material for core.
With reference to embodiment, the present invention is further illustrated.Following examples are served only for the technical side of the present invention is described
Case, rather than limiting the scope of the invention.
Embodiment 1：
1）20 grams of souring activity charcoals are added to 10 milliliters of SOCl2In liquid and in 40 degrees Celsius of lower back flow reaction 2 hours,
Chloride activated carbon will be obtained；
2）1 gram of nano-manganese dioxide is put into 100 milliliters of ethanol/waters（The volume ratio of second alcohol and water is 4:1）Dispersion
In agent, stir 30 minutes, obtain manganese dioxide solution；
3）Add 0.02 gram of amino silicane coupling agent in manganese dioxide solution, obtain silane coupler modified nanometer two
Oxidation manganese solution；
4）Above-mentioned chloride activated carbon is added in silane coupler modified nanometer titanium dioxide manganese solution, stirs 1
Hour, vacuum filtration；
5）By 4）Step sucking filtration product is vacuum dried 12 hours at one hundred and twenty degrees centigrade, obtains a kind of long-acting sky except formaldehyde
Gas purifier material for core.
It is 1 gram/cubic metre that the activated carbon of material for core obtained above and equal in quality is respectively put into concentration of formaldehyde
Volume is in 1.5 cubic metres of 2 Laboratory Modules, surveys concentration of formaldehyde in 2 Laboratory Modules respectively, because above-described embodiment prepares
Material for core there is the effect that constant temperature catalyzing decomposing formaldehyde is carbon dioxide and water, the formaldehyde adsorption of collaborative souring activity charcoal
Performance, the formaldehyde catalytic decomposition formaldehyde being adsorbed in activated carbon surface is carbon dioxide and water, it is to avoid the absorption of activated carbon is satisfied
With, experimental result as shown in Fig. 2 it can be seen that the material for core of the present invention is after the formaldehyde of absorption certain time, its
Absorption property does not substantially reduce, and continues to maintain preferable absorbability.
Embodiment 2：
1）20 grams of souring activity charcoals are added to 20 milliliters of SOCl2In liquid and at 50 c back flow reaction 2 hours,
Obtain chloride activated carbon；
2）The manganese dioxide of 1g is put into 200 milliliters of ethanol/waters（The volume ratio of second alcohol and water is 4:1）Dispersant
In, stir 30 minutes, obtain manganese dioxide solution；
3）Add 0.02 gram of amino silicane coupling agent in manganese dioxide solution, obtain silane coupler modified nanometer two
Oxidation manganese solution；
4）Above-mentioned chloride activated carbon is added in silane coupler modified nanometer titanium dioxide manganese solution, stirs 1
Hour, vacuum filtration；
5）By 4）Step sucking filtration product is vacuum dried 12 hours under 130 degrees Celsius, obtains a kind of long-acting sky except formaldehyde
Gas purifier material for core.
Claims (2)
1. a kind of preparation method of the long-acting air purifier material for core except formaldehyde it is characterised in that：The method include as
Lower step：
（1）Activated carbon after the acidifying of 20 weight portions is added to SOCl2In liquid, and in 40 ~ 50 degrees Celsius of lower back flow reaction 2
Hour, obtain chloride activated carbon；Activated carbon and SOCl2The mass volume ratio of liquid is 1 ~ 2g/ml；
（2）The manganese dioxide of 1 weight portion is put in the mixed solution of second alcohol and water, the volume ratio of second alcohol and water is 4:1, stir
Mix 30 minutes, obtain manganese dioxide solution；The mass volume ratio of the mixed solution of manganese dioxide and second alcohol and water is 0.005 ~
0.01g/ml；
（3）The silane coupler of 0.02 weight portion is added in manganese dioxide solution, obtains silane coupler modified nanometer
Manganese dioxide solution；
（4）By step（1）The chloride activated carbon obtaining is added to step（3）The silane coupler modified nano-silica obtaining
Change in manganese solution, stir 1 hour, vacuum filtration；
（5）By step（4）Sucking filtration product is vacuum dried under 120 ~ 130 degrees Celsius, obtains the long-acting air purifier except formaldehyde
Use material for core.
2. described method according to claim 1 it is characterised in that：Step（3）Described in silane coupler be amino silicone
Alkane coupling agent.
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| CN106000432B (en) * | 2016-05-24 | 2019-04-12 | 湖南宇洁活性炭环保科技有限公司 | Wood substance grain active carbon of supported catalyst for air cleaning and preparation method thereof |
| CN107243321B (en) * | 2017-04-21 | 2019-07-26 | 浙江理工大学 | A kind of air cleaning material of long-acting removal organic polluter |
| CN107698191A (en) * | 2017-10-30 | 2018-02-16 | 汪涛 | For removing the spray coating liquor of formaldehyde |
| CN110124612B (en) * | 2019-04-02 | 2022-03-11 | 江苏镇江固利纳新能源科技合伙企业(有限合伙) | Micron-thickness breathable carbon film for air treatment and manufacturing method thereof |
| CN110433868A (en) * | 2019-07-19 | 2019-11-12 | 淮阴工学院 | A kind of aerogel composite and preparation method thereof for formaldehyde catalytic decomposition |
| CN110732316B (en) * | 2019-11-11 | 2022-08-23 | 北京航天爱锐科技有限责任公司 | Activated carbon adsorption material, preparation method thereof and application thereof in field of catalytic decomposition of organic pollutants |
| CN110773127B (en) * | 2019-11-13 | 2021-02-19 | 中国科学院过程工程研究所 | Hydrophobic active carbon material, preparation method and application thereof |
| CN110935418A (en) * | 2019-11-15 | 2020-03-31 | 西安重光明宸检测技术有限公司 | Preparation method of filter element for removing formaldehyde in air |
| CN110898526A (en) * | 2019-12-09 | 2020-03-24 | 西安中科贝昂环保科技有限公司 | Preparation method of air disinfection filter element material |
| CN115707512B (en) * | 2021-08-20 | 2024-03-29 | 中国石油化工股份有限公司 | Catalyst for synthesizing vinyl acetate, preparation method and application thereof |
| CN115414774B (en) * | 2022-10-09 | 2023-12-12 | 山东宝龙达新材料有限公司 | Silicon-carbon compound capable of absorbing formaldehyde and preparation method and application thereof |
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| KR101275936B1 (en) * | 2011-03-17 | 2013-06-17 | 국립대학법인 울산과학기술대학교 산학협력단 | Manufacturing method of manganese oxide catalyst using multi wall carbon nano tube for zinc-air battery and manufacturing method of Cathode for zinc-air battery using thereof |
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Inventor after: Shi Feng Inventor after: Pei Kemei Inventor after: Li Lingwei Inventor after: Huang Jingjing Inventor after: Chen Jian Inventor before: Shi Feng Inventor before: Li Lingwei Inventor before: Huang Jingjing Inventor before: Chen Jian |
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Address after: Hangzhou City, Zhejiang province 310000 Binjiang District Jianye Road No. 511 building 13 room 1301, China Patentee after: Zhejiang Benniao science and Technology Co Ltd Address before: Hangzhou City, Zhejiang province 310053 Binjiang District Jianye Road No. 511 building 13 room 1301, China Patentee before: Hangzhou Ben Niao Environmental Protection Technology Co., Ltd |
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Address after: 310000 Room 501, 5 / F, block D, 159 tangziyan Road, Changhe street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: ZHEJIANG BENNIAO TECHNOLOGY Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310000 Binjiang District Jianye Road No. 511 building 13 room 1301, China Patentee before: ZHEJIANG BENNIAO TECHNOLOGY Co.,Ltd. |
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