CN203620645U - Structure of titanium dioxide-silicon dioxide photocatalytic thin film - Google Patents
Structure of titanium dioxide-silicon dioxide photocatalytic thin film Download PDFInfo
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- CN203620645U CN203620645U CN201320467768.0U CN201320467768U CN203620645U CN 203620645 U CN203620645 U CN 203620645U CN 201320467768 U CN201320467768 U CN 201320467768U CN 203620645 U CN203620645 U CN 203620645U
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- titanium dioxide
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- silicon dioxide
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Abstract
The utility model discloses a structure of a titanium dioxide-silicon dioxide photocatalytic thin film. The thickness of the titanium dioxide-silicon dioxide thin film is between 0.5 millimeter and 1 millimeter. The structure of the titanium dioxide-silicon dioxide photocatalytic thin-film is as follows: nano-grade titanium dioxide-silicon dioxide solid particles are evenly distributed on a carrier, wherein the titanium dioxide is elliptical particles and has an anatase structure, the long axis of the elliptical ball is 10 to 15 nanometers, the short axis of the elliptical ball is 3 to 6 nanometers, the activity of the titanium dioxide in an elliptical ball shape is higher than that of titanium dioxide in an spherical shape in the prior art; silicon dioxide is in a spherical shape, the diameter of the silicon dioxide particle is in a range of 20 nanometers to 30 nanometers, and the carrier is made of glass or a transparent plastic substance. The titanium dioxide-silicon dioxide thin film has a super hydrophilicity, high light penetrability, high adhesiveness, and high hardness on carriers, and also has strong decontamination and self-cleaning functions. Under the radiation of fluorescent lamp, ultraviolet lamp, or sunlight, the thin film has a high activity and high light penetration rate, and thus the thin film has anti-reflection and anti-dazzle functions.
Description
Technical field
The utility model relates to a kind of structure of titanium dioxide-silica photo-catalyst film, this silica-titania is uniform mixing, titanium dioxide granule is oval spherical, and silica is spheroidal, and titanium dioxide granule is dispersed in the middle of the spheroid of silica uniformly.The utility model also discloses its application in decontamination, self-cleaning and antireflection.Silica can increase film thickness and increase its light transmittance, titanium dioxide can destroy in dirt on glass, therefore can be after long use, increase its light transmittance, this silica-titania film has strong decontamination, self-cleaning and antireflecting effect on glass, and has Superhydrophilic.
Background technology
So-called photocatalyst, passes through the irradiation of light exactly, can promote the material of chemical reaction.The material that can be used as at present photocatalyst has the oxides such as titanium dioxide, and wherein titanium dioxide is because have powerful oxidability, and high chemically stability, and nontoxic characteristic, be the most often used for the material as photocatalyst.Photocatalyst can be used for processing the harmful chemical of low concentration in air, and itself can not disengage harmful substance, is therefore splendid environmental purification using catalyst.Photocatalyst has smelly eliminating, sterilization, antibacterial, antifouling and remove the functions such as harmful substance.
The crystal structure of titanium dioxide has tetragonal rutile (rutile) type, anatase (anatase) type and belongs to 3 kinds, rhombic brockite (brookite) type.Wherein only has the effect of anatase structured tool photocatalyst.The light decomposition mechanism of photocatalysis treatment program is by ultraviolet light or sunshine exciting light catalyst, makes catalyst produce electronics and electric hole, uses the material of oxidized surface absorption, and then is little molecule by the substance decomposition of adsorption.Take titanium dioxide as example, titanium dioxide absorbs light and produces electronics and electric hole, this electric hole has great oxidability, the contaminant molecule direct oxidation that is adsorbed on titanium dioxide surface can be made it decompose, or the hydrone that is adsorbed in material surface is oxidized to hydroxyl free radical.Originally macromolecular pollutant, by macromolecular cleavage, reaches the object that pollutant is removed via photocatalyst reaction.
TaiWan, China number of patent application discloses the synthetic method of preparing crystal titanium dioxide light catalyst No. 9212203, it is to utilize titanium tetrachloride or titanium sulfate to adjust pH value through dilution with ammoniacal liquor, add suitable oxidant and inorganic acid, compounding practice condition generates titanium dioxide optical catalyst sol, the prepared titanium dioxide of this utility model is bulky grain, and be ball-type, its reactivity is not high, and be difficult for being attached to carrier formation film.
No. 96142648th, TaiWan, China number of patent application, disclose a kind of transparent water-based nano sol gel coating constituent and coating process thereof that does not reduce transparent base visible ray and day light transmittance, it is take zeolite sol as main body, and this zeolite sol is with alkoxide preparation, its complex process.
No. 95129291st, TaiWan, China number of patent application is a kind of " low temperature procedure is prepared the method for nano thin-film ", and it is to disclose the method that uses titanium dioxide, its complex process, and titanium dioxide is large ball-shaped, photocatalyst activity is not high.
The method of nano TiO 2 powder is prepared in the 92128954th its announcement of TaiWan, China number of patent application, it is to cross oxide or the inorganic acids such as chloric acid, and add modification agent and interfacial agent etc. to carry out upgrading, the utility model need use modification agent and interfacial agent, can make made titanium dioxide stable suspersion in water, and this suspension is acid, the prepared titanium dioxide of this utility model is bulky grain, and be ball-type, its reactivity is not high, and be difficult for being attached to carrier formation film.
Prior art is first carried layer of silicon dioxide conventionally on carrier, carries layer of titanium dioxide on silica, and the anti-reflective of this structure and anti-dazzle character are not high enough.
Prior art is all to use spheroidal titanium dioxide, and particle is large, and in the time that film is made up of titanium dioxide spheroidal, the space in the middle of it is larger, and photocatalyst activity is poor.
Utility model content
The purpose of this utility model is to disclose one and loads on the structure on carrier with titanium dioxide-silica photo-catalyst film, this titanium dioxide-silica membrane thickness is between 0.5 millimeter to 1 millimeter, the structure of titanium dioxide-silica photo-catalyst film, it is to have Nano titanium dioxide-silica solid uniform particles to mix to be carried on carrier, titanium dioxide is oval spheric granules, have anatase structured, this oval spherical major axis is 10 to 15 nanometers, minor axis is 3 to 6 nanometers, the activity of the spheroidal titanium dioxide that this oval-shaped ball uses than prior art is high, silica is spheroidal, its diameter is between 20 to 30 nanometers, this carrier is glass or transparent plastic material.This titanium dioxide-silica membrane has Superhydrophilic on carrier, high light peneration, high tack and high hardness, and there is strong decontamination and self-cleaning effect.With fluorescent lamp, ultraviolet lamp or solar light irradiation, the activity that tool is high, with the penetrance of high light, therefore it has effect of antireflection and anti-dazzle.
For reaching above-mentioned purpose, the utility model provides a kind of structure with titanium dioxide-silica photo-catalyst film, this titanium dioxide-silica membrane thickness is between 0.5 millimeter to 1 millimeter, the structure of titanium dioxide-silica photo-catalyst film, it is to have Nano titanium dioxide-silica solid uniform particles to mix to be carried on carrier, titanium dioxide is oval spheric granules, has anatase structuredly, and this carrier is glass or transparent plastic material.
The structure of above-mentioned photo-catalyst film, wherein silica is spheroidal, and its diameter is between 20 to 30 nanometers, and this oval spherical major axis is 10 to 15 nanometers, and minor axis is 3 to 6 nanometers.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is silica-titania membrane structure, and the particle that titanium dioxide is oval ball-type has anatase structuredly, and this oval spherical major axis is 10 to 15 nanometers, and minor axis is 3 to 6 nanometers; Silica is spheroidal, and its diameter is between 20 to 30 nanometers, and this carrier is glass or transparent plastic material.
Fig. 2 is the structure of silica-titania film appendix on carrier, and silica-bis-are take the thickness of changing titanium film between 0.1 micron to 1 micron, and carrier is glass or transparent plastic material.
Wherein, Reference numeral
1: be carrier
2: silica
3: titanium dioxide
4: silica-titania film
The specific embodiment
The utility model discloses one and loads on the structure on carrier with titanium dioxide-silica photo-catalyst film, this titanium dioxide-silica membrane thickness is between 0.5 millimeter to 1 millimeter, the structure of titanium dioxide-silica photo-catalyst film, it is to have Nano titanium dioxide-silica solid uniform particles to mix to be carried on carrier, titanium dioxide is oval spheric granules, have anatase structured, this oval spherical major axis is 10 to 15 nanometers, minor axis is 3 to 6 nanometers, the activity of the spheroidal titanium dioxide that this oval-shaped ball uses than prior art is high, silica is spheroidal, its diameter is between 20 to 30 nanometers, this carrier is glass or transparent plastic material.This titanium dioxide-silica membrane has Superhydrophilic on carrier, high light peneration, high tack and high hardness, and there is strong decontamination and self-cleaning effect.With fluorescent lamp, ultraviolet lamp or solar light irradiation, the activity that tool is high, with the penetrance of high light, therefore it has effect of antireflection and anti-dazzle.The activity of the spheroidal titanium dioxide that this oval-shaped ball uses than prior art is high, and this carrier is glass or transparent plastic material.
Certainly; the utility model also can have other various embodiments; in the situation that not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (2)
1. the structure with titanium dioxide-silica photo-catalyst film, it is characterized in that, this titanium dioxide-silica membrane thickness is between 0.5 millimeter to 1 millimeter, the structure of titanium dioxide-silica photo-catalyst film, it is to have Nano titanium dioxide-silica solid uniform particles to mix to be carried on carrier, titanium dioxide is oval spheric granules, has anatase structuredly, and this carrier is glass or transparent plastic material.
2. the structure of photo-catalyst film according to claim 1, is characterized in that, silica is spheroidal, and its diameter is between 20 to 30 nanometers, and this oval spherical major axis is 10 to 15 nanometers, and minor axis is 3 to 6 nanometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467768.0U CN203620645U (en) | 2013-08-01 | 2013-08-01 | Structure of titanium dioxide-silicon dioxide photocatalytic thin film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320467768.0U CN203620645U (en) | 2013-08-01 | 2013-08-01 | Structure of titanium dioxide-silicon dioxide photocatalytic thin film |
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| CN203620645U true CN203620645U (en) | 2014-06-04 |
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| CN201320467768.0U Expired - Lifetime CN203620645U (en) | 2013-08-01 | 2013-08-01 | Structure of titanium dioxide-silicon dioxide photocatalytic thin film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10921492B2 (en) | 2018-01-09 | 2021-02-16 | Corning Incorporated | Coated articles with light-altering features and methods for the production thereof |
| CN116023038A (en) * | 2023-02-01 | 2023-04-28 | 咸宁南玻节能玻璃有限公司 | Hydrophilic self-cleaning glass and preparation method thereof |
| US11940593B2 (en) | 2020-07-09 | 2024-03-26 | Corning Incorporated | Display articles with diffractive, antiglare surfaces and methods of making the same |
| US11971519B2 (en) | 2021-07-08 | 2024-04-30 | Corning Incorporated | Display articles with antiglare surfaces and thin, durable antireflection coatings |
-
2013
- 2013-08-01 CN CN201320467768.0U patent/CN203620645U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10921492B2 (en) | 2018-01-09 | 2021-02-16 | Corning Incorporated | Coated articles with light-altering features and methods for the production thereof |
| US11940593B2 (en) | 2020-07-09 | 2024-03-26 | Corning Incorporated | Display articles with diffractive, antiglare surfaces and methods of making the same |
| US11971519B2 (en) | 2021-07-08 | 2024-04-30 | Corning Incorporated | Display articles with antiglare surfaces and thin, durable antireflection coatings |
| CN116023038A (en) * | 2023-02-01 | 2023-04-28 | 咸宁南玻节能玻璃有限公司 | Hydrophilic self-cleaning glass and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Yuwen Inventor before: Lin Yuwen |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIN YUWEN TO: CHEN YUWEN |
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| CB03 | Change of inventor or designer information |
Inventor after: Lv Lifang Inventor after: Chen Yuwen Inventor before: Chen Yuwen |
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| COR | Change of bibliographic data | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
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| CX01 | Expiry of patent term |