CN101618288B - Preparation method of fiberglass-based photocatalysis filter screen - Google Patents
Preparation method of fiberglass-based photocatalysis filter screen Download PDFInfo
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- CN101618288B CN101618288B CN200910099468XA CN200910099468A CN101618288B CN 101618288 B CN101618288 B CN 101618288B CN 200910099468X A CN200910099468X A CN 200910099468XA CN 200910099468 A CN200910099468 A CN 200910099468A CN 101618288 B CN101618288 B CN 101618288B
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Abstract
The invention discloses a preparation method of a fiberglass-based photocatalysis filter screen, comprising the following steps: (1) an external force is applied to a fiberglass bundle to prepare a fiberglass screen, an adhesive is coated on the surface of the fiberglass screen, and the weight ratio of the adhesive and the fiberglass screen is 1:2-50; (2) a photocatalyst and an organic solvent with the weight ratio of 1:10-40 are mixed and dispersed by ultrasonic for 10-45min; and (3) a mixed liquid in the step (2) is loaded to the surface of the fiberglass screen coated with the adhesive in the step (1) in a spraying mode, the weight ratio of the photocatalyst and the fiberglass screen is 0.01-1.5:1, and the fiberglass screen is dried to obtain the fiberglass-based photocatalysis filter screen. The invention has the advantages of convenient method, no need of calcination, small wind resistance, good light transmission property, difficult falling-off of the loaded catalyst, high activity of photocatalysis, and the like. The obtained component is suitable for an air purifier, and the like, and can be used for gaseous organic pollutants in a photocatalysis purifying chamber.
Description
Technical field
The invention belongs to photocatalysis technology, be specifically related to a kind of preparation method of fiberglass-based photocatalysis filter screen.
Background technology
Photocatalysis technology utilizes UV-irradiation to have the semi-conducting material of photocatalytic activity, make its surface produce photohole and light induced electron, photohole and be captured the hydroxyl radical free radical that the back produces and all have very strong oxidability almost can all organic pollutions of oxidation.The characteristics of photocatalysis technology are effectively to utilize luminous energy, easy to operate, non-secondary pollution, are widely used in air purification field.On form, photochemical catalyst can be divided into two kinds of powder-type and support types, the former has high relatively catalytic activity, but tiny powder is easy to reunite in the air cleaning process, influence its catalytic effect, and powder catalyst only is applicable to the fluidized bed type clarifier, is difficult to large-scale promotion application.Comparatively speaking, the loaded catalyst scope of application is wider.Yet in case be fixed, the absorption property of catalyst and light utilization efficiency can decrease, and cause its catalytic activity not high.Loaded optic catalyst on adsorbent can further improve the adsorption capacity of catalyst; And select adsorbing glass fibre is arranged equally as carrier, can also avoid the absorption of carrier effectively, thereby further improve light utilization efficiency light.Chinese patent ZL200610048742.7 discloses a kind of glass fiber loaded light-catalysed preparation method, adopt glass fiber as carrier, with surfactant and organic solvent as dispersant, obtain loaded catalyst by dipping, high-temperature calcination, this method complicated operation, cost is higher, is unfavorable for the practical application popularization.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of preparation method of fiberglass-based photocatalysis filter screen is provided, this method does not need high-temperature calcination, simple and easy to do, the catalyst difficult drop-off of load, photocatalytic activity height.
The preparation method of fiberglass-based photocatalysis filter screen may further comprise the steps:
1) glass fiber bundle is applied external force, be processed into glass fiber mesh, at glass fiber mesh surface-coated adhesive, the weight ratio of adhesive and glass fiber mesh is 1: 2～50;
2) be that 1: 10～40 photochemical catalyst mixes ultrasonic dispersion 10～45min with organic solvent with weight ratio;
3) with step 2) mixed liquor load to the glass fibre net surface that is coated with adhesive of step 1) in the mode of splash, the weight ratio of photochemical catalyst and glass fiber mesh is 0.01～1.5: 1, drying obtains fiberglass-based photocatalysis filter screen.
Described adhesive is polyvinyl alcohol, polyethylene glycol, polyacrylate or polyvinyl acetate, and the weight percent concentration of its solution is 0.1～10%.Photochemical catalyst is titanium dioxide, doping type TiO 2-base optical catalyst or compound TiO 2-base optical catalyst.Organic solvent is alcohols, ketone or ester class; Alcohols is methyl alcohol, ethanol, isopropyl alcohol, butanols, cyclohexanol or ethylene glycol, and ketone is acetone or cyclohexanone, and the ester class is methyl acetate, ethyl acetate or n-propyl acetate.Dry for drying naturally or 40～100 ℃ of oven dry.
The present invention be directed to the characteristics of indoor air-purification device, under the effect of adhesive, as carrier, make the filter screen of photocatalytic activity by splash mode loaded optic catalyst with glass fiber mesh.The present invention directly prepares moulding photocatalysis filter screen assembly, have characteristics such as windage is little, light transmission is good, preparation process does not need high-temperature calcination, simple and easy to do, the catalyst difficult drop-off of load, photocatalytic activity height, and can cut out arbitrarily, be applicable to dissimilar organic gas purification devices.
Description of drawings
Accompanying drawing is the prepared fiberglass-based grid type photocatalysis filter screen of example 1.
The specific embodiment
Embodiment 1:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 10mL concentration on its surface and be 1% poly-vinyl alcohol solution; 2g titanium dioxide is added in the 20mL ethanol, and sonic oscillation 30min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly naturally.
Embodiment 2:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 10mL concentration on its surface and be 1% poly-vinyl alcohol solution; 2g is mixed the Pt TiO 2-based catalyst add in the 20mL methyl alcohol, sonic oscillation 30min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly naturally.
Embodiment 3:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 10mL concentration on its surface and be 1% poly-vinyl alcohol solution; 2g titanium dioxide/active carbon composite catalyst is added in the 20mL isopropyl alcohol, and sonic oscillation 30min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly naturally.
Embodiment 4:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 10mL concentration on its surface and be 10% poly-vinyl alcohol solution; 2g titanium dioxide is added in the 20mL butanols, and sonic oscillation 30min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly naturally.
Embodiment 5:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 40mL concentration on its surface and be 0.1% poly-vinyl alcohol solution; 2g titanium dioxide is added in the 20mL cyclohexanol, and sonic oscillation 30min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly naturally.
Embodiment 6:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 40mL concentration on its surface and be 0.1% poly-vinyl alcohol solution; 0.02g titanium dioxide is added in the 10mL ethylene glycol, and sonic oscillation 10min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly down in 40 ℃.
Embodiment 7:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 40mL concentration on its surface and be 0.1% poly-vinyl alcohol solution; 3g titanium dioxide is added in the 50mL acetone, and sonic oscillation 45min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly down in 100 ℃.
Embodiment 8:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 10mL concentration on its surface and be 1% poly-vinyl alcohol solution; 2g titanium dioxide is added in the 20mL cyclohexanone, and sonic oscillation 30min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly naturally.
Embodiment 9:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 10mL concentration on its surface and be 1% polyvinyl acetate solution; 2g is mixed the Pt TiO 2-based catalyst add in the 20mL methyl acetate, sonic oscillation 30min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly naturally.
Embodiment 10:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 10mL concentration on its surface and be 1% polyglycol solution; 2g titanium dioxide/active carbon composite catalyst is added in the 20mL ethyl acetate, and sonic oscillation 30min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly naturally.
Embodiment 11:
Get the 2g glass fiber bundle, it is applied external force, make to become to approach netted, its surface area is 450cm after the moulding
2, evenly apply 10mL concentration on its surface and be 10% polyacrylate solution; 2g titanium dioxide is added in the 20mL n-propyl acetate, and sonic oscillation 30min makes its even dispersion; Mode with splash arrives undried glass fibre net surface still with catalyst cupport, dries promptly naturally.
Embodiment 12:
With toluene is the representative of air pollutants, has tested the photocatalysis effect of the fiberglass-based grid type photocatalysis of the present invention assembly to gaseous contaminant toluene.The initial concentration of toluene is about 3mg/m
3Use wavelength as the 254nm uviol lamp as light source.Used assembly is prepared among the embodiment 1, and usable floor area is 140cm
2After catalyst absorption toluene in the question response device arrives balance, the illumination of turning on light, behind the catalysis 2h, the toluene degradation rate reaches 85.0%.
Above embodiment only is described further invention, and scope of the present invention is not subjected to the limitation of illustrated embodiment.
Claims (4)
1. the preparation method of a fiberglass-based photocatalysis filter screen is characterized in that may further comprise the steps:
1) glass fiber bundle is applied external force, be processed into glass fiber mesh, at glass fiber mesh surface-coated adhesive, the weight ratio of adhesive and glass fiber mesh is 1: 2～50;
2) be that 1: 10～40 photochemical catalyst mixes ultrasonic dispersion 10～45min with organic solvent with weight ratio;
3) with step 2) mixed liquor load to the glass fibre net surface that is coated with adhesive of step 1) in the mode of splash, the weight ratio of photochemical catalyst and glass fiber mesh is 0.01～1.5: 1, drying obtains fiberglass-based photocatalysis filter screen;
The described adhesive concentration that is weight percentage is 0.1～10% polyvinyl alcohol, polyethylene glycol, polyacrylate or polyvinyl acetate solution.
2. the preparation method of a kind of fiberglass-based photocatalysis filter screen as claimed in claim 1 is characterized in that described photochemical catalyst is titanium dioxide, doping type TiO 2-base optical catalyst or compound TiO 2-base optical catalyst.
3. the preparation method of a kind of fiberglass-based photocatalysis filter screen as claimed in claim 1 is characterized in that described organic solvent is alcohols, ketone or ester class; Alcohols is methyl alcohol, ethanol, isopropyl alcohol, butanols, cyclohexanol or ethylene glycol, and ketone is acetone or cyclohexanone, and the ester class is methyl acetate, ethyl acetate or n-propyl acetate.
4. the preparation method of a kind of fiberglass-based photocatalysis filter screen as claimed in claim 1 is characterized in that described drying is that nature dries or 40～100 ℃ of oven dry.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097039A (en) * | 2017-12-26 | 2018-06-01 | 北京阳光凯特科技有限公司 | A kind of photocatalysis air purifying device and its light catalytic purifying component |
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| CN104772110B (en) * | 2015-04-03 | 2017-12-22 | 河南泽润泰环保科技有限责任公司 | A kind of visible-light response type air purifier photocatalyst filtering net and preparation method thereof |
| CN107008241A (en) * | 2017-04-28 | 2017-08-04 | 杨林 | A kind of preparation method of high-strength light catalytic film |
| CN108246067A (en) * | 2018-01-19 | 2018-07-06 | 宿迁艾润科技有限公司 | A kind of smell photocatalysis purifier |
| CN108993138A (en) * | 2018-08-30 | 2018-12-14 | 常州大学 | A kind of indoor air cleaner |
| CN110026172B (en) * | 2019-04-28 | 2022-01-04 | 江苏双良环境科技有限公司 | Method for curing graphene-based photocatalyst on metal mesh |
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| CN110589928A (en) * | 2019-09-23 | 2019-12-20 | 上海市农业科学院 | Fixed photocatalyst and preparation method and application thereof |
| CN115869929A (en) * | 2021-09-29 | 2023-03-31 | 陕西青朗万城环保科技有限公司 | Preparation method of microwave-photocatalyst |
Citations (2)
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| CN1513040A (en) * | 2001-04-25 | 2004-07-14 | 南欧派克有限公司 | Photocatalytic coating material having photocatalytic activity and adsorption property and method for preparating same |
| CN1721059A (en) * | 2005-05-24 | 2006-01-18 | 同济大学 | Loaded on glass fiber net TiO 2The preparation method of fixed film photocatalyst |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513040A (en) * | 2001-04-25 | 2004-07-14 | 南欧派克有限公司 | Photocatalytic coating material having photocatalytic activity and adsorption property and method for preparating same |
| CN1721059A (en) * | 2005-05-24 | 2006-01-18 | 同济大学 | Loaded on glass fiber net TiO 2The preparation method of fixed film photocatalyst |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097039A (en) * | 2017-12-26 | 2018-06-01 | 北京阳光凯特科技有限公司 | A kind of photocatalysis air purifying device and its light catalytic purifying component |
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