CN101716360A - Method for production of chitosan/nanometer titanium dioxide complex air-purifying agent - Google Patents
Method for production of chitosan/nanometer titanium dioxide complex air-purifying agent Download PDFInfo
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- CN101716360A CN101716360A CN200910264918A CN200910264918A CN101716360A CN 101716360 A CN101716360 A CN 101716360A CN 200910264918 A CN200910264918 A CN 200910264918A CN 200910264918 A CN200910264918 A CN 200910264918A CN 101716360 A CN101716360 A CN 101716360A
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- chitosan
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- titanium dioxide
- nanometer titanium
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Abstract
The invention discloses a chitosan/nanometer titanium dioxide complex air-purifying agent, which is composed of chitosan, nanometer titanium dioxide and active carbon; a production method thereof comprises the steps: chitosan is dissolved by 0.5-2% of acetic acid, lactic acid or phosphoric acid to form 0.2-2% of chitosan solution, tetraethyl titanate solution or butyl titanate solution is then added and stirred, wherein the volume ratio of the chitosan solution to the tetraethyl titanate solution or butyl titanate solution is 1:0.1-1:0.5, active carbon powder which is 2-5 times as heavy as the weight of tetraethyl titanate is added, and the produce can be prepared by laying for 2-6 hours. The product prepared according to the method has good adsorption property and stability.
Description
Technical field:
The present invention relates to a kind of production method of air purifying preparation.
Background technology:
High development along with human civilization, especially entered since 20 middle of century, because the chemical products that the consumption of domestic fuel increases, inlet chamber is interior and the kind and the quantity of electric equipment increase, more owing to the house building for the energy savings cold district gets more airtight, the indoor pollution factor day by day increases and the ventilation ability weakens on the contrary, and this makes that the concentration of indoor some pollutant is more outdoor up to more than tens of times.
People spend indoor the average nearly time more than 80% of every day.Modernization more along with production and life style, more work and sports entertainment all can carry out indoor, shopping also needn't be gone into the street every day, suitable indoor microclimate makes people needn't often go to regulate heat effect to the open air, like this, people's the indoor activity time is just more, even up to more than 93%.Therefore, IAQ (indoor air quality) just seems more important more closely to the relation of health.Though the concentration of indoor pollutant is often lower, because time of contact is very long, so its accumulation contact amount is very high.Weak crowd such as especially old, young, sick, residual, Abwehrkraft des Koepers are lower, the outdoor activities chance still less, therefore, the quality of IAQ (indoor air quality) and their relation are particularly important.
As everyone knows, the titanium dioxide of titanium dioxide, especially nanoscale demonstrates strong oxidisability under rayed, can degrade organic effectively and inorganic pollution, and titanium dioxide has indissoluble, nontoxic, low cost and other advantages simultaneously.But because the specific surface area of the titanium dioxide of nanoscale is big, in use have the reunion inactivation, separate with recovery difficulty and titanium dioxide absorbability relatively poor, problem such as photocatalysis efficiency is low.Therefore the dispersion that can nano titanium oxide effectively stable and fixedly be nano titanium oxide key in application problem.
Summary of the invention:
The object of the present invention is to provide the production method of the chitosan/nanometer titanium dioxide complex air-purifying agent of a kind of absorbability and good stability.
Technical solution of the present invention is:
A kind of chitosan/nanometer titanium dioxide complex air-purifying agent is characterized in that: be made up of chitosan, nano titanium oxide and active carbon.
The production method of chitosan/nanometer titanium dioxide complex air-purifying agent, it is characterized in that: the chitosan solution of chitosan being dissolved into 0.2-2% with acetic acid, lactic acid or the phosphoric acid of 0.5-2%, add tetraethyl titanate or butyl titanate solution then, stir, wherein the volume ratio of chitosan solution and tetraethyl titanate or butyl titanate solution is 1: 0.1-1: 0.5, it is last to add the activated carbon powder that is equivalent to 2～5 times of tetraethyl titanate weight again, places 2-6 hour, can make product.
The present invention utilizes sol-gel process to prepare nano titanium oxide by titanate esters, and wherein the water of titanate esters freight needs is provided by chitosan solution, and the sour environment in the chitosan solution is returned hydrolytic process simultaneously provides catalytic action.Titanium dioxide is compound by chitosan and absorbent-type active carbon, the coal-based or fruit shell carbon in active carbon source, and the granularity of active carbon is less than 120 orders, and specific surface area is at 500-1200m
2/ g.
The present invention compares characteristics and the progress that has with existing correlation technique:
1, by chitosan solution, utilize the sol-gel process to prepare nano titanium oxide, chitosan and nano titanium oxide can uniform distribution like this, simultaneously nano titanium oxide/active carbon can be compound evenly, firmly, the stability height.
2, nano titanium oxide, chitosan and active carbon all have absorption property and catalytic action to airborne polluter, in the catalytic process, three's mutual synergism are arranged, and have improved catalytic efficiency greatly.Chitosan has improved the adhesive force of nano titanium oxide on active carbon simultaneously, and material can be used for a long time.
3, nano titanium oxide, chitosan and absorbent charcoal composite material preparation technology are simple, and cost is low.
The invention will be further described below in conjunction with embodiment.
The specific embodiment:
Embodiment 1:
Chitosan is become the chitosan solution of mass concentration 0.2-2% (example 0.2%, 1%, 2%) with the acetate dissolution of mass concentration 0.5-2% (example 0.5%, 1%, 2%), add tetraethyl titanate or butyl titanate solution then, fully stir after 30 minutes, wherein the volume ratio of chitosan solution and tetraethyl titanate or butyl titanate solution is 1: 0.1-1: 0.5 (example 1: 0.5,1: 0.3,1: 0.1), it is last to add the activated carbon powder that is equivalent to 2～5 times of tetraethyl titanate weight again, placed 2-6 hour, and can make product.
Embodiment 2:
Tetraethyl titanate changes butyl titanate among the embodiment 1, and other step is with embodiment 1.
Embodiment 3
Lactic acid changes acetic acid or phosphoric acid among the embodiment 1, and other step is with embodiment 1.
Claims (2)
1. a chitosan/nanometer titanium dioxide complex air-purifying agent is characterized in that: be made up of chitosan, nano titanium oxide and active carbon.
2. the production method of chitosan/nanometer titanium dioxide complex air-purifying agent according to claim 1, it is characterized in that: the chitosan solution of chitosan being dissolved into 0.2-2% with acetic acid, lactic acid or the phosphoric acid of 0.5-2%, add tetraethyl titanate or butyl titanate solution then, stir, wherein the volume ratio of chitosan solution and tetraethyl titanate or butyl titanate solution is 1: 0.1-1: 0.5, it is last to add the activated carbon powder that is equivalent to 2～5 times of tetraethyl titanate weight again, placed 2-6 hour, and can make product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910264918 CN101716360B (en) | 2009-12-18 | 2009-12-18 | Method for production of chitosan/nanometer titanium dioxide complex air-purifying agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910264918 CN101716360B (en) | 2009-12-18 | 2009-12-18 | Method for production of chitosan/nanometer titanium dioxide complex air-purifying agent |
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| Publication Number | Publication Date |
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| CN101716360A true CN101716360A (en) | 2010-06-02 |
| CN101716360B CN101716360B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910264918 Expired - Fee Related CN101716360B (en) | 2009-12-18 | 2009-12-18 | Method for production of chitosan/nanometer titanium dioxide complex air-purifying agent |
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| CN (1) | CN101716360B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558588A (en) * | 2011-12-26 | 2012-07-11 | 重庆科技学院 | Method for preparing nano-titanium dioxide chitosan composite membrane by using double dispersing agents |
| CN103007891A (en) * | 2012-10-26 | 2013-04-03 | 张建新 | Method for preparing air purification material |
| CN105768218A (en) * | 2016-03-25 | 2016-07-20 | 浙江海洋学院 | Cigarette purifying agent containing squid bones as well as preparation method and application of cigarette purifying agent |
| CN106187098A (en) * | 2016-07-08 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of double filtration is compound goes haze molecule calcium silicate material and production method thereof |
| CN106178687A (en) * | 2016-07-11 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of filtration is compound goes haze molecule calcium silicates graphene nano base material and production method thereof |
| CN107788038A (en) * | 2017-11-16 | 2018-03-13 | 南京市雨花台区绿宝工业设计服务中心 | A kind of preparation method of sterilizing deodoring agent |
| CN108554388A (en) * | 2018-04-27 | 2018-09-21 | 南通大学 | Jie's micro porouse chitoglycan particle of the particle containing nano-catalytic and its application |
| CN108658135A (en) * | 2018-05-06 | 2018-10-16 | 安徽乐金环境科技有限公司 | One kind being based on diatomaceous Water body cleansing agent |
| CN108706794A (en) * | 2018-05-06 | 2018-10-26 | 安徽乐金环境科技有限公司 | One kind is based on diatomaceous water body purification filter core and preparation method thereof |
| CN108706644A (en) * | 2018-05-06 | 2018-10-26 | 安徽乐金环境科技有限公司 | A kind of composite modified carbon-based water purification agent of cyclodextrin/photocatalyst |
| CN108726620A (en) * | 2018-05-06 | 2018-11-02 | 安徽乐金环境科技有限公司 | Composite modified carbon-based water purification catridge of one kind and preparation method thereof |
| CN108722015A (en) * | 2018-05-05 | 2018-11-02 | 安徽乐金环境科技有限公司 | A kind of tri compound water purification catridge and preparation method thereof |
| CN108751319A (en) * | 2018-05-06 | 2018-11-06 | 安徽乐金环境科技有限公司 | A kind of preparation method of the composite modified carbon-based water purification agent of cyclodextrin/photocatalyst |
| CN108751318A (en) * | 2018-05-05 | 2018-11-06 | 安徽乐金环境科技有限公司 | A kind of preparation method of activated carbon base water purification agent |
| CN108773870A (en) * | 2018-05-05 | 2018-11-09 | 安徽乐金环境科技有限公司 | A kind of activated carbon base water purification agent |
| CN108773860A (en) * | 2018-05-06 | 2018-11-09 | 安徽乐金环境科技有限公司 | A kind of preparation method based on diatomaceous Water body cleansing agent |
-
2009
- 2009-12-18 CN CN 200910264918 patent/CN101716360B/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102558588A (en) * | 2011-12-26 | 2012-07-11 | 重庆科技学院 | Method for preparing nano-titanium dioxide chitosan composite membrane by using double dispersing agents |
| CN102558588B (en) * | 2011-12-26 | 2014-04-09 | 重庆科技学院 | Method for preparing nano-titanium dioxide chitosan composite membrane by using double dispersing agents |
| CN103007891A (en) * | 2012-10-26 | 2013-04-03 | 张建新 | Method for preparing air purification material |
| CN105768218A (en) * | 2016-03-25 | 2016-07-20 | 浙江海洋学院 | Cigarette purifying agent containing squid bones as well as preparation method and application of cigarette purifying agent |
| CN106187098A (en) * | 2016-07-08 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of double filtration is compound goes haze molecule calcium silicate material and production method thereof |
| CN106178687A (en) * | 2016-07-11 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of filtration is compound goes haze molecule calcium silicates graphene nano base material and production method thereof |
| CN107788038A (en) * | 2017-11-16 | 2018-03-13 | 南京市雨花台区绿宝工业设计服务中心 | A kind of preparation method of sterilizing deodoring agent |
| CN108554388A (en) * | 2018-04-27 | 2018-09-21 | 南通大学 | Jie's micro porouse chitoglycan particle of the particle containing nano-catalytic and its application |
| CN108722015A (en) * | 2018-05-05 | 2018-11-02 | 安徽乐金环境科技有限公司 | A kind of tri compound water purification catridge and preparation method thereof |
| CN108751318A (en) * | 2018-05-05 | 2018-11-06 | 安徽乐金环境科技有限公司 | A kind of preparation method of activated carbon base water purification agent |
| CN108773870A (en) * | 2018-05-05 | 2018-11-09 | 安徽乐金环境科技有限公司 | A kind of activated carbon base water purification agent |
| CN108706794A (en) * | 2018-05-06 | 2018-10-26 | 安徽乐金环境科技有限公司 | One kind is based on diatomaceous water body purification filter core and preparation method thereof |
| CN108706644A (en) * | 2018-05-06 | 2018-10-26 | 安徽乐金环境科技有限公司 | A kind of composite modified carbon-based water purification agent of cyclodextrin/photocatalyst |
| CN108726620A (en) * | 2018-05-06 | 2018-11-02 | 安徽乐金环境科技有限公司 | Composite modified carbon-based water purification catridge of one kind and preparation method thereof |
| CN108658135A (en) * | 2018-05-06 | 2018-10-16 | 安徽乐金环境科技有限公司 | One kind being based on diatomaceous Water body cleansing agent |
| CN108751319A (en) * | 2018-05-06 | 2018-11-06 | 安徽乐金环境科技有限公司 | A kind of preparation method of the composite modified carbon-based water purification agent of cyclodextrin/photocatalyst |
| CN108773860A (en) * | 2018-05-06 | 2018-11-09 | 安徽乐金环境科技有限公司 | A kind of preparation method based on diatomaceous Water body cleansing agent |
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| Publication number | Publication date |
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| CN101716360B (en) | 2013-06-05 |
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