CN101081304B - Air purification material and preparation process thereof - Google Patents
Air purification material and preparation process thereof Download PDFInfo
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- CN101081304B CN101081304B CN2007100151069A CN200710015106A CN101081304B CN 101081304 B CN101081304 B CN 101081304B CN 2007100151069 A CN2007100151069 A CN 2007100151069A CN 200710015106 A CN200710015106 A CN 200710015106A CN 101081304 B CN101081304 B CN 101081304B
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- photocatalyst
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Abstract
The present invention relates to air purifying technology, and is especially air-purifying conducting material/active carbon/nanometer photocatalyst material and its preparation process. The air-purifying material is prepared through using conducting material as carrier, adhering active carbon onto the conducting material, and painting composite coating of photocatalyst. The preparation process of the air-purifying material includes the following steps: dissolving dispersant to water and adding and ultrasonically dispersing photocatalyst to form water solution of photocatalyst; forming active carbon coating onto conducting material and painting the water solution of photocatalyst onto the active carbon coating; drying and sintering at 50-200 deg.c. The air-purifying material has high air-purifying effect, excellent comprehensive performance, easy use, wide application range and easy production.
Description
One technical field:
The present invention relates to material for air purification and preparation technology thereof, especially a kind of conductive material/active carbon/nano-photocatalyst material for air purification and preparation technology thereof.
Two background technologies:
Along with popularizing of the aggravation of atmospheric pollution and interior decoration, decoration, room air pollution is more and more serious to the harm that the mankind cause, and administering to pollute has become the problem that people receive much attention.Indoor air pollutants mainly is VOC (VOCs), dust granules thing and microorganism, and wherein VOCs is major pollutants.The method of removing VOCs from air generally has absorption, absorption, catalytic burning etc., but these methods all have certain limitation.And the active carbon adsorption that generally uses has many advantages, and for dealing with various requirements, people can utilize activated carbon granule or activated carbon granule attached on the carrier, make the cleaning equipment application.But which kind of form no matter after all existing active carbon and reaching saturated adsorbed state, needs regeneration could recover shortcomings such as its adsorption function, has influence on floatingization effect.
With the quasiconductor is catalyst, and utilizing the airborne VOCs of light-catalysed method oxidative degradation is a new technique that comes into one's own day by day in recent years.But the aerial concentration of single pollutant is extremely low, makes photocatalytic degradation speed slower; In addition, in photocatalytic process, pollutant purification will be passed through many intermediate steps, the meeting that has generates deleterious intermediate product.Thereby nano photo catalyzed oxidation is restricted in actual applications.
Three summary of the invention:
The objective of the invention is to overcome the shortcoming that existing scavenging material exists, with the conductive material is carrier, active carbon and catalysis material are combined, provide a kind of air purification effect good, synthesized environmental protection function admirable, easy to install, material for air purification that range of application is wide and preparation technology thereof.
Technical scheme of the present invention is: be carrier with the conductive material, adhere to activated carbon coating on its surface; Repaste covers the catalysis material composite coating on the conductive material of activated carbon coating adhering to.
Adhering to the preparation technology that repaste on the conductive material of activated carbon coating covers the catalysis material composite coating be:
(1) preparation photocatalyst aqueous solution:
In pH value is 5～11 water, add dispersant, treat that it dissolves fully after, add photocatalyst, stir, ultra-sonic dispersion 0.2～2 hour, left standstill 0.25～2 hour, become the photocatalyst aqueous solution;
Add material mass ratio be:
Photocatalyst: water: dispersant=1: 5～1000: 0.2%～10%;
(2) with the method for spraying or dip-coating or brushing, the photocatalyst aqueous solution that configures is coated on the activated carbon coating on conductive material surface, carries out drying again;
(3) then through 50～200 ℃ of sintering 0.5 hour.
Constitute on the conductive material that activated carbon coating is arranged from the teeth outwards and adhere to the catalysis material composite material again.
Wherein: photocatalyst comprises: titanium dioxide, zinc oxide, zinc sulfide, tin ash, cerium oxide, molybdenum oxide, perovskite-type compounds, spinel-type chemical compound, and the composite of above-mentioned material;
Conductive material comprises: have alveolate texture, network structure, slab construction, foamed metal material or have the high molecular polymer of conduction property.
By above prepared, with the conductive material is carrier, its surface attachment active carbon/nano-photocatalyst material composite bed material for air purification, not only kept the absorbability of active carbon, and utilized the absorption enriching pollutants that concentration in the air is lower of active carbon, improved the degradation capability of photocatalyst pollutant, accelerated the decomposition rate of harmful substance, photocatalyst has recovered the absorbability of active carbon to the degraded of the pollutant of activated carbon adsorption simultaneously, has optimized clean-up effect.The present invention is carrier with the conductive material, and its advantage is under certain bias voltage, can improve the electronics of ultra-vioket radiation photocatalyst generation and the life-span in hole, thereby improve light-catalysed degradation efficiency.And the preparation technology of institute's invention material is simple, is convenient to operation, is easy to suitability for industrialized production.
Four description of drawings:
Fig. 1 is the cutaway view of structural representation of the present invention;
Fig. 2 is applied in structural representation in the air purifier for the present invention;
Fig. 3 is applied in structural representation in the air-purifying module for the present invention.
Reference numeral:
1, the conductive material 1-1 of surface attachment active carbon/nano-photocatalyst material composite coating, conductive material body 1-2, activated carbon coating 1-3, nano-photocatalyst material coating 2, conductive material or vaporizer 3, uviol lamp 4, constant voltage equipment 5, housing 6, blower fan 7, air outlet 8, air inlet 9, filter screen 10, electrostatic precipitator
Five specific embodiment:
It is as follows to be described in detail implementation process of the present invention in conjunction with the accompanying drawings:
Embodiment 1:
As shown in Figure 1:
Adhering to the preparation technology that repaste on the aluminum honeycomb of activated carbon coating covers the catalysis material composite coating be:
Take by weighing 0.010g dispersant dodecylbenzene sodium sulfonate and join in the water that pH is 8.0 250ml (being 250g), treat that it dissolves fully after, add the 25g titanium dioxide powder, stir.Ultra-sonic dispersion 1 hour left standstill 1 hour, made the photocatalyst aqueous solution.The above-mentioned photocatalyst aqueous solution that configures evenly sprayed or dip-coating in the aluminum honeycomb surface of adhering to activated carbon coating, apply finish after, dry naturally; 180 ℃ of sintering of reuse 0.5 hour form active carbon/catalysis material composite coating material on the aluminum honeycomb material surface.
Embodiment 2:
As shown in Figure 1:
It is carrier that conductive material 1 is selected cancellated copper mesh for use, adhere to from the teeth outwards on the conductive material copper mesh 1-1 of activated carbon coating 1-2, repaste covers nano-photocatalyst material composite coating 1-3, constitutes the copper mesh scavenging material that adheres to active carbon/catalysis material composite coating.
Adhering to the preparation technology that repaste on the copper mesh of activated carbon coating covers the catalysis material composite coating be:
Take by weighing 0.200g dispersant triethanolamine and join in the water that pH is 5.0 2400ml (being 2400g), treat that it dissolves fully after, add the 2.5g Zinc oxide powder, stir.Ultra-sonic dispersion 1.5 hours left standstill 1.5 hours, made the photocatalyst aqueous solution.The copper mesh that will adhere to activated carbon coating impregnated in the above-mentioned photocatalyst aqueous solution that configures, and makes its dip-coating even, lifts, and dries naturally then; 120 ℃ of sintering of reuse 0.5 hour form active carbon/catalysis material composite coating material at the copper mesh material surface.
Embodiment 3:
It is carrier that conductive material 1 is selected steel plate for use, adheres to from the teeth outwards on the conductive material steel plate 1-1 of activated carbon coating 1-2, and repaste covers nano-photocatalyst material composite coating 1-3, constitutes the steel plate scavenging material that adheres to active carbon/catalysis material composite coating.
Adhering to the preparation technology that repaste on the steel plate of activated carbon coating covers the catalysis material composite coating be:
Take by weighing 0.25g dispersant tween 80 and join in the water that pH is 10.0 500ml (being 500g), treat that it dissolves fully after, add the 25g zinc sulphide powder, stir, ultra-sonic dispersion 0.3 hour left standstill 0.3 hour, made the photocatalyst aqueous solution.The above-mentioned photocatalyst aqueous solution that configures is brushed adhering on the steel plate of activated carbon coating, dry naturally; 160 ℃ of sintering of reuse 0.5 hour form active carbon/catalysis material composite coating material on the steel plate materials surface.
Embodiment 4:
It is carrier that conductive material 1 is selected the foam conductive polyethylene for use, adhere to from the teeth outwards on the foam conductive polyethylene 1-1 of activated carbon coating 1-2, repaste covers nano-photocatalyst material composite coating 1-3, constitutes the foam conductive polyethylene that adheres to active carbon/catalysis material composite coating.
Adhering to the preparation technology that repaste on the foam conductive polyethylene of activated carbon coating covers the catalysis material composite coating be:
Take by weighing the 0.25g sodium hexametaphosphate dispersant and join in the water that pH is 7.0 500ml (being 500g), treat that it dissolves fully after, add the composite granule of the adulterated titanium dioxide of 25g silver, stir.Ultra-sonic dispersion 1 hour left standstill 0.3 hour, made the photocatalyst aqueous solution.The foam conductive polyethylene-impregnated that to adhere to activated carbon coating makes its dip-coating even in the above-mentioned photocatalyst aqueous solution that configures, and lifts, and dries naturally then; 60 ℃ of sintering of reuse 0.5 hour form active carbon/catalysis material composite coating material on foam conductive polythene material surface.
Embodiment 5:
The present invention is applied to the example in the air cleaner independently.
As shown in Figure 2: active carbon aluminum honeycomb 1, uviol lamp 3, conductive material steel plate or electro-conductive glass 2, the constant voltage equipment 4 that will adhere to nano titanium oxide, be installed in together in the housing 5 with blower fan 6, air inlet 8 and air outlet 7 are arranged on the housing 5, and constant voltage device 4 is connected between the active carbon aluminum honeycomb 1 and conductive material steel plate or electro-conductive glass 2 that adheres to nano titanium oxide; Uviol lamp 3 is installed in active carbon aluminum honeycomb 1 one sides of adhering to nano titanium oxide; Constitute independently multiple air purifier based on photo-catalysis function.Electrostatic precipitator 5 or filter screen 6 also can be installed in housing.
The running of this air cleaner: uviol lamp 2, constant voltage equipment 4 all are in open mode.Start blower fan 6, make its rotation, air pollution enters air cleaner by air inlet 8, through filter screen 9, removes the bigger dust of degranulation, enters into electrostatic precipitator 10.From the air that electrostatic precipitator 10 comes out, enter into the nano-photo catalytic device.Gas continues by adhering to the active carbon aluminum honeycomb 1 of nano titanium oxide, active carbon aluminum honeycomb can effectively adsorb pollutant, pollutant to extremely low concentration in the air carry out adsorption cleaning and surface enrichment fast, accelerated the speed of photocatalytic degradation reaction, suppress the release of intermediate product, improved the efficient of pollutant complete oxidations.While to the nano titanium oxide surface migration, is realized the in-situ regeneration of active carbon aluminum honeycomb by active carbon aluminum honeycomb adsorbed contaminants, increases the service life.Air pollution through adhering to nano titanium oxide active carbon aluminum honeycomb 1 absorption, the degraded after, the fresh air that purified is discharged to indoor by air outlet 7.
Embodiment 6:
As shown in Figure 3:
The present invention is applied in the purifier of air conditioner or refrigerator.Active carbon copper mesh 1, uviol lamp 3, conductive material steel wire 2, the constant voltage equipment 4 that will adhere to nano zine oxide, be installed in together in the housing 2 with blower fan 6, air inlet 8 and air outlet 7 are arranged on the housing 2, and constant voltage device 4 is connected between the active carbon copper mesh 1 and conductive material steel wire 2 that adheres to nano zine oxide; Uviol lamp 3 is installed in active carbon copper mesh 1 one sides of adhering to nano zine oxide; Electrostatic precipitator 10 or filter screen 9 also can be installed in housing.
The air cleaner that material of the present invention has been installed is installed in the cold room of the indoor set air inlet of air-conditioning or refrigerator, uviol lamp 3, constant voltage equipment 4 all are in open mode.Start blower fan 6, make its rotation, air pollution enters air-conditioning by air inlet 8, through filter screen 9, removes the bigger dust of degranulation, enters into electrostatic precipitator 10; The air that comes out from electrostatic precipitator, enter into the nano-photo catalytic device, gas continues by adhering to the active carbon copper mesh 1 of nano zine oxide, the active carbon copper mesh can effectively adsorb pollutant, pollutant to extremely low concentration in the air carry out adsorption cleaning and surface enrichment fast, accelerate the speed of photocatalytic degradation reaction, suppressed the release of intermediate product, improved the efficient of pollutant complete oxidations.While to the nano zine oxide surface migration, is realized the in-situ regeneration of active carbon copper mesh by active carbon copper mesh adsorbed contaminants, increases the service life.Air pollution through adhering to nano zine oxide active carbon copper mesh 1 absorption, the degraded after, the fresh air that purified is discharged in the cold room of indoor or refrigerator by air outlet 7.
Claims (1)
1. the preparation technology of a material for air purification is characterized by the prepared process and is:
(1) preparation photocatalyst aqueous solution:
In pH value is 5～11 water, add dispersant, treat that it dissolves fully after, add photocatalyst, stir, ultra-sonic dispersion 0.2～2 hour, left standstill 0.25～2 hour, become the photocatalyst aqueous solution;
Add material mass ratio be:
Photocatalyst: water: dispersant=1: 5～1000: 0.002～0.10;
(2) with the method for spraying or dip-coating or brushing, the photocatalyst aqueous solution that configures is coated on the activated carbon coating on conductive material surface, carries out drying again;
(3) then through 120～200 ℃ of sintering 0.5 hour;
Described photocatalyst comprises: zinc oxide, zinc sulfide, tin ash, cerium oxide, molybdenum oxide, perovskite-type compounds, spinel-type chemical compound, or the composite of above-mentioned material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100151069A CN101081304B (en) | 2007-06-29 | 2007-06-29 | Air purification material and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100151069A CN101081304B (en) | 2007-06-29 | 2007-06-29 | Air purification material and preparation process thereof |
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| Publication Number | Publication Date |
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| CN101081304A CN101081304A (en) | 2007-12-05 |
| CN101081304B true CN101081304B (en) | 2011-05-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785234A (en) * | 2015-03-02 | 2015-07-22 | 山东省环境保护科学研究设计院 | Honeycomb active carbon supported catalyst plate |
| KR20180090203A (en) * | 2017-02-02 | 2018-08-10 | (주)엘지하우시스 | Air filter and air purification module including the same |
| CN111659349B (en) * | 2020-06-16 | 2022-08-02 | 天津清科环保科技有限公司 | Self-assembled honeycomb activated carbon-nano particle module and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288775A (en) * | 1999-09-17 | 2001-03-28 | 上海维来现代科技发展有限公司 | Photocatalytic air-purifying net in multilayer structure and is making process |
| CN1454708A (en) * | 2002-04-30 | 2003-11-12 | 中国人民解放军63971部队 | Method of preparing composite photocatalytic material for air purification |
| CN1608727A (en) * | 2003-10-17 | 2005-04-27 | 中国科学院过程工程研究所 | Supported TiO2 photocatalyst and its prepn process |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288775A (en) * | 1999-09-17 | 2001-03-28 | 上海维来现代科技发展有限公司 | Photocatalytic air-purifying net in multilayer structure and is making process |
| CN1454708A (en) * | 2002-04-30 | 2003-11-12 | 中国人民解放军63971部队 | Method of preparing composite photocatalytic material for air purification |
| CN1608727A (en) * | 2003-10-17 | 2005-04-27 | 中国科学院过程工程研究所 | Supported TiO2 photocatalyst and its prepn process |
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Owner name: WANG GUANGHUA Free format text: FORMER OWNER: SHANDONG HISENSE ENVIRONMENTAL PROTECTION CO., LTD. Effective date: 20100129 |
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Effective date of registration: 20100129 Address after: No. 185, mountain road, Lixia District, Shandong City, Ji'nan Province, China: 250014 Applicant after: Wang Guanghua Co-applicant after: Zhang Limin Co-applicant after: Chang Xiumei Co-applicant after: He Yumin Co-applicant after: Wang Chengyan Co-applicant after: Zhang Wenhua Co-applicant after: Zhang Bi Address before: No. 185, mountain road, Lixia District, Shandong City, Ji'nan Province, China: 250014 Applicant before: Shandong Hisense Commerce Co., Ltd. |
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