CN101757900A - Superhydrophilic nano titanium dioxide photocatalysis composite membrane as well as preparation method and application thereof - Google Patents
Superhydrophilic nano titanium dioxide photocatalysis composite membrane as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN101757900A CN101757900A CN200910186881A CN200910186881A CN101757900A CN 101757900 A CN101757900 A CN 101757900A CN 200910186881 A CN200910186881 A CN 200910186881A CN 200910186881 A CN200910186881 A CN 200910186881A CN 101757900 A CN101757900 A CN 101757900A
- Authority
- CN
- China
- Prior art keywords
- titanium dioxide
- composite membrane
- nano titanium
- superhydrophilic
- particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a superhydrophilic nano titanium dioxide photocatalysis composite membrane as well as a preparation method and application thereof. The superhydrophilic nano titanium dioxide photocatalysis composite membrane comprises nanosize titanium dioxide sol and a submicron particle; and the particle is selected from one or more of the following compounds: silicon dioxide, bismuth oxide, active carbon, zinc oxide and iron oxide. The composite membrane can also maintain superhydrophilic performance for a long time without illumination and improves the efficiency of air purification processing by changing a common hydrophilic titanium dioxide membrane into the superhydrophilic membrane. The photocatalysis membrane can be widely applied to the technical field of air purification processing.
Description
Technical field
The invention belongs to technical field of air purification processing, be specifically related to a kind of Superhydrophilic nano titanium dioxide photocatalysis composite membrane that is used for indoor air purification and its production and application.
Background technology
In recent years, air pollution problems inherent is subject to people's attention day by day.(Advanced Oxidation Processes is a kind of approach of air cleaning with the toxic pollutant degraded AOPs) by the advanced oxidation process.Wherein, adopt nano-TiO
2Catalysis material carries out air cleaning and has become one of the most promising method of environment of administering.Particularly by after the suitable modification, TiO
2Photocatalytic degradation react available visible light source and excite.Nano-TiO
2The key issue that the photocatalysis practical application must solve promptly improves photocatalysis efficiency.The factor that influences photocatalysis efficiency is a lot, and relation is complicated.For example, photocatalysis efficiency not only is decided by processes such as the desorption of pollutant transporting on photocatalyst surface, absorption, oxidation Decomposition, product and transmission, also depends on the generation of photocatalyst surface active specy.As everyone knows, the photocatalytic Degradation of nano titanium oxide derives from the photo-generated carrier (free electron and hole) that catalyst is subjected to produce after the optical excitation and is converted to very strong negative oxygen ion of oxidisability or hydroxyl free radical, this process relate to photo-generated carrier generation, move, bury in oblivion and transform.Not only depend on composition, the structure of catalyst, also depend on the oxygen and the hydrone of surface absorption strongly.Especially in air cleaning, the abundant absorption of hydrone be converted to the activity hydroxy free radical and become one of key factor that photocatalysis efficiency improves.
Hydrone has extremely strong wetting capacity on super hydrophilic membrane.In photocatalysis research, it is found that the film that nano titanium oxide forms has Superhydrophilic under ultraviolet lighting.In recent years, utilize Superhydrophilic to make self-cleaning coating and become an emerging focus.
The nano titanium dioxide photocatalysis air purifying process that adopts is not considered the influence of the wellability of hydrone on photocatalysis membrana to photocatalysis efficiency at present.Because hydrone is absolutely necessary in the generation of photocatalytic activity species, thereby hydrone must effectively adsorb on the photocatalysis membrana surface.For air cleaning was used, improving or improve the absorption property of hydrone on the photocatalysis membrana surface was the effective means that improves photocatalysis efficiency.The present invention comes therefrom.
Summary of the invention
The object of the invention is to provide a kind of Superhydrophilic nano titanium dioxide photocatalysis composite membrane, has solved conventional nano-TiO
2Problems such as the photocatalysis film photocatalysis efficiency is low.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of Superhydrophilic nano titanium dioxide photocatalysis composite membrane, it is characterized in that described composite membrane comprises the TiO 2 sol of nano-scale and the particle of sub-micron, described particle is selected from one or more following compound: silica, bismuth oxide, activated carbon, zinc oxide, iron oxide.
Preferably, the particle diameter of described titanium dioxide is in 10～100nm scope; The particle diameter of described particle is in 100～1000nm scope.
Preferably, described particle is SiO
2, described Si/Ti mol ratio is in the 5%-35% scope.
Preferably, described particle is the Bi of particle diameter in 100～800nm scope
2O
3, and the Bi/Ti mol ratio is between 0.5%-10%.
Preferably, described composite membrane is 1～10 layer, and the contact angle of described composite membrane is 0 °.
Another object of the present invention is to provide a kind of preparation method of Superhydrophilic nano titanium dioxide photocatalysis composite membrane, it is characterized in that described method comprises TiO 2 sol with the particle of the sub-micron step by the serigraphy film forming on carrier.
Preferably, described carrier is selected from stainless steel, aluminium, pottery, glass, carbon paper, carbon cloth and brown paper.
Preferably, described serigraphy step is to print to form on 250～400 order silk screen plates.
Preferably, the preparation method of TiO 2 sol comprises in the described method:
(1) with quantitative TiOSO
4Or TiCl
4Or Ti (OBu)
4Be added drop-wise to while stirring among the isopropyl alcohol PrOH, make it fully to mix;
(2) under high speed machine stirs, add in an amount of water control pH value scope 1.5～3.5;
(3) with solution under the condition of 75 ℃ of water-baths of constant temperature, stirring and refluxing 12～24h obtains.
Another object of the present invention is to provide the application of a kind of Superhydrophilic nano titanium dioxide photocatalysis composite membrane aspect indoor air purification.
On carrier, prepare nanometer photocatalytic titania film by adding submicron particles thing and screen printing technique in the technical solution of the present invention, and be used for the degraded of indoor volatile organic matter (VOCs) as formaldehyde with Superhydrophilic.Because photocatalysis membrana Superhydrophilic of the present invention makes overall optical catalytic membrane surface fully cover one deck hydrone, increases the generation probability and the concentration of photoreactive species greatly, improves the distributed areas and the concentration in photocatalytic activity site simultaneously.And then the existence of hydrone film has improved greatly also that volatile organic compound and harmful microorganism further strengthen the efficient of photocatalytic degradation in the stop ability on film surface in the air, and the kill harmful microorganism guarantees that toxic organic compound is by mineralizing and degrading fully.
The present invention obtains described photocatalysis membrana and have super water-wet behavior under excited by visible light, has the air cleaning ability of ultraviolet or excited by visible light simultaneously.Its visible light catalysis activity is compound by narrow-band semiconductor, element doping is realized.
With respect to scheme of the prior art, advantage of the present invention is:
1. the nanometer photocatalytic titania film of the Superhydrophilic that obtains of technical solution of the present invention has visible light catalysis activity, can utilize the sunshine excitation nano titanium dioxide optical catalyst of cleaning to carry out air cleaning, saves the energy.
2, utilize the nanometer photocatalytic titania film of the Superhydrophilic that technical solution of the present invention obtains to carry out air cleaning, it is under ultraviolet or excited by visible light, owing to the super water-wet behavior of photocatalysis membrana has the air cleaning ability of enhancing, can improve the efficient of photocatalysis air-cleaning effectively.
In sum, Superhydrophilic nano titanium dioxide photocatalysis film of the present invention makes and also can keep Superhydrophilic for a long time that under unglazed photograph it has the air cleaning ability of enhancing under ultraviolet or visible light in addition, can improve the efficient of photocatalysis air-cleaning effectively.This photocatalysis membrana can be widely used in technical field of air purification processing.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is the embodiment of the invention 1 composite S iO
2-TiO
2The contact angle test result figure of film;
Fig. 2 be under the embodiment of the invention 1 varying environment humidity with common pure nano-TiO
2The efficiency variance design sketch of membrane degradation formaldehyde;
Fig. 3 is that the embodiment of the invention 2 is placed Bi down naturally
2O
3-TiO
2Composite membrane and pure nano-TiO
2The film contact angle is schemed over time;
Fig. 4 is the embodiment of the invention 2 compound Bi
2O
3-TiO
2Photochemical catalyst and pure nano-TiO
2The diffuse reflection spectrum comparison diagram of photochemical catalyst;
Fig. 5 is that the embodiment of the invention 2 excites down super hydrophilic compound Bi at simulated solar irradiation and indoor illumination
2O
3-TiO
2Film and pure nano-TiO
2The ability comparison diagram of membrane degradation formaldehyde;
Fig. 6 is the 2 super hydrophilic compound Bi of the embodiment of the invention
2O
3-TiO
2The design sketch of continuous degradation formaldehyde under the film ultraviolet light.
The specific embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are used to the present invention is described and are not limited to limit the scope of the invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
13 layers of composite S iO of embodiment
2-TiO
2The preparation of film and photocatalytic activity research
1, TiO
2The preparation of colloidal sol
Ti (OBu) with 25ml
4Be added drop-wise to while stirring among the 8mli-PrOH, make it fully to mix, obtain solution A; A certain amount of ethamine (the N/Ti mol ratio is 10%) and SiO
2Particle joins in the water of 200ml, controls its pH value scope 1.75～2.25, obtains solution B; Under high speed machine stirs, solution A is added drop-wise among the B slowly.Under the condition of 75 ℃ of water-baths of constant temperature, stir backflow 24h.
2, SiO
2The interpolation of particle
At above-mentioned TiO
2In the colloidal sol preparation, in solution B, add the SiO of the about 500nm of particle diameter
2Particle, Si/Ti mol ratio are 10%.
3, hydrophily test
Experimental condition: 25 ℃ of room temperatures, humidity 55%.Utilize Finland SKV company to produce CAM-200 type dynamic contact angle detection system and detect contact angle.
Test method: 8 μ L deionized waters are dropped in TiO with microsyringe
2Drop is treated after film surface is stable in the film surface, gathers picture by the CCD shooting, obtains the contact angle data by angle-measuring method.
Result of the test: Fig. 1 shows that water droplet is at 3 layers of composite S iO
2-TiO
2The wellability on film (Si/Ti mol ratio=10%) surface.Water droplet is sprawled on film fully, and contact angle is 0 °, film performance excess of export water-wet behavior.
4, degraded test
Experimental condition: the photocatalysis membrana system in this example is with being added with SiO
2The TiO of particle
2Colloidal sol adopts 350 order silk screen plate printings to form on brown paper.TiO
2The about 10nm of particle diameter, composite S iO
2-TiO
2Film shows good super hydrophilicity.
Test method: photocatalysis air-cleaning carries out in WH-2 type 60L small intelligent environmental chamber, and the catalyst film area is 30mmX200mm.Light source adopt respectively uviol lamp (365nm, 9W), the simulated solar light source (Metal halogen lamp, 15W) and fluorescent light (11W).Reaction is at room temperature carried out, and temperature is 25.0 ± 0.5 ℃ in the control cabinet, and air velocity is 12L/min.Detect the concentration of formaldehyde gas in the cabin with formaldehyde determination instrument (the Britain ppm400 of PPM company type).
Result of the test:
Fig. 2 is presented in the humidity range (35%-80%) of experiment, super hydrophilic composite S iO
2-TiO
2The degradation rate of film PARA FORMALDEHYDE PRILLS(91,95) all significantly is better than the TiO of pure nanometer
2Film (54 ° of contact angles).
1.TiO
2The preparation of colloidal sol
Ti (OBu) with 25ml
4Be added drop-wise to while stirring among the 8mli-PrOH, make it fully to mix, obtain solution A; A certain amount of Bi
2O
3Join in the water of 200ml, control its pH value scope 1.8～3.0, obtain solution B; Under high speed machine stirs, solution A is added drop-wise among the B slowly.Under the condition of 75 ℃ of water-baths of constant temperature, stir backflow 24h.
2.Bi
2O
3The interpolation of particle
At above-mentioned TiO
2In the colloidal sol preparation, in solution B, add the Bi of the about 500nm of particle diameter
2O
3Particle, Bi/Ti mol ratio are 1.25%.
3. hydrophily test
Experimental condition: 25 ℃ of room temperatures, humidity 55%.Utilize Finland SKV company to produce CAM-200 type dynamic contact angle detection system and detect contact angle.
Test method: with microsyringe 8 μ L deionized waters are dropped in TiO2 film surface, treat drop after film surface is stable, gather picture, obtain the contact angle data by angle-measuring method by the CCD shooting.
Result of the test: added Bi
2O
3Its contact angle of composite membrane had significantly and to have reduced.Fig. 3 shows 5 layers Bi
2O
3-TiO
2Composite membrane (the Bi/Ti mol ratio is 1.25%) and pure nano-TiO
2Contact angle under film is placed naturally concerns over time.Bi
2O
3-TiO
2Composite membrane has remained Superhydrophilic, and contact angle is 0 ° always.Pure nano-TiO
2Film then has hydrophily, and contact angle is greater than 50 °.
4, photocatalytic oxidation degradation experiment
Test procedure: the photocatalysis membrana in this example is the compound Bi of sol-gel process preparation
2O
3-TiO
2Film.TiO
2The about 10nm of particle diameter.Fig. 4 is the used compound Bi of this example experiment
2O
3-TiO
2The diffuse reflection spectrum of photochemical catalyst shows that catalyst system therefor has visible light absorption.Photocatalytic process is with example 1.
Result of the test:
Fig. 5 is the used compound Bi of this example experiment when simulated solar irradiation and general lighting optical excitation
2O
3-TiO
2Photochemical catalyst with general T iO
2The efficient of photocatalyst for degrading formaldehyde relatively.No matter adopt which kind of light source, super hydrophilic compound Bi
2O
3-TiO
2The photocatalysis efficiency of film all obviously is better than pure nano-TiO
2Film.Fig. 6 shows super hydrophilic compound Bi
2O
3-TiO
2The ability of film continuous degradation formaldehyde under ultraviolet excitation.Bi
2O
3-TiO
2The catalysis degradation modulus of film PARA FORMALDEHYDE PRILLS(91,95) maintains more than 90% all the time, has stronger photocatalysis stability.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All spirit essence is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (10)
1. Superhydrophilic nano titanium dioxide photocatalysis composite membrane, it is characterized in that described composite membrane comprises the TiO 2 sol of nano-scale and the particle of sub-micron, described particle is selected from one or more following compound: silica, bismuth oxide, activated carbon, zinc oxide, iron oxide.
2. Superhydrophilic nano titanium dioxide photocatalysis composite membrane according to claim 1, the particle diameter that it is characterized in that described titanium dioxide is in 10～100nm scope; The particle diameter of described particle is in 100～1000nm scope.
3. Superhydrophilic nano titanium dioxide photocatalysis composite membrane according to claim 1 is characterized in that described particle is SiO
2, described Si/Ti mol ratio is in the 5%-35% scope.
4. Superhydrophilic nano titanium dioxide photocatalysis composite membrane according to claim 1 is characterized in that described particle is the Bi of particle diameter in 100～800nm scope
2O
3, and the Bi/Ti mol ratio is between 0.5%-10%.
5. according to claim 3 or 4 described Superhydrophilic nano titanium dioxide photocatalysis composite membranes, it is characterized in that described composite membrane is 3～10 layers, the contact angle of described composite membrane is 0 °.
6. the preparation method of the described Superhydrophilic nano titanium dioxide photocatalysis composite membrane of claim 1 is characterized in that described method comprises the TiO 2 sol of the particle step by the serigraphy film forming on carrier that will contain sub-micron.
7. method according to claim 6 is characterized in that described carrier is selected from stainless steel, aluminium, pottery, glass, carbon paper, carbon cloth and brown paper.
8. method according to claim 6 is characterized in that described serigraphy step is to print to form on 250～400 order silk screen plates.
9. method according to claim 6 is characterized in that the preparation method of TiO 2 sol in the described method comprises:
(1) with quantitative TiOSO
4Or TiCl
4Or Ti (OBu)
4Be added drop-wise to while stirring among the isopropyl alcohol PrOH, make it fully to mix;
(2) under high speed machine stirs, add in an amount of water control pH value scope 1.5～3.5;
(3) with solution under the condition of 75 ℃ of water-baths of constant temperature, stirring and refluxing 12～24h obtains.
10. the application of the described Superhydrophilic nano titanium dioxide photocatalysis composite membrane of claim 1 aspect indoor air purification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186881A CN101757900A (en) | 2009-12-28 | 2009-12-28 | Superhydrophilic nano titanium dioxide photocatalysis composite membrane as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186881A CN101757900A (en) | 2009-12-28 | 2009-12-28 | Superhydrophilic nano titanium dioxide photocatalysis composite membrane as well as preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101757900A true CN101757900A (en) | 2010-06-30 |
Family
ID=42489379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910186881A Pending CN101757900A (en) | 2009-12-28 | 2009-12-28 | Superhydrophilic nano titanium dioxide photocatalysis composite membrane as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101757900A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010712A (en) * | 2010-10-29 | 2011-04-13 | 东南大学 | Preparation method of Eu<3+>/TiO2 nanocrystal and application of Eu<3+>/TiO2 nanocrystal as fluorescent probe |
| CN102219395A (en) * | 2011-04-20 | 2011-10-19 | 东华大学 | Method for preparing ultra-hydrophilic zinc oxide/titanium oxide film by using layer-by-layer self-assembling method |
| CN103466960A (en) * | 2013-08-27 | 2013-12-25 | 天津儒创新材料科技有限公司 | Preparation method of photoinduction self-cleaning glass |
| CN105688886A (en) * | 2016-03-07 | 2016-06-22 | 山东源根化学技术研发有限公司 | Preparing method of water-soluble visible-light response photocatalysis degradation agent |
| CN105797709A (en) * | 2016-05-23 | 2016-07-27 | 中国科学院城市环境研究所 | Bismuth and zinc doped titanium dioxide photocatalyst and preparation method and application thereof |
| TWI554329B (en) * | 2015-09-07 | 2016-10-21 | 明志科技大學 | Method for manufacturing activated carbon doped titanium oxide photocatalyst |
| CN106881093A (en) * | 2017-02-22 | 2017-06-23 | 上海纳米技术及应用国家工程研究中心有限公司 | It is a kind of efficiently to remove formaldehyde spray and its preparation method and application |
| CN107398138A (en) * | 2017-08-15 | 2017-11-28 | 天津市职业大学 | A kind of photocatalysis gray haze abatement agent and preparation method thereof |
| CN108659210A (en) * | 2017-03-29 | 2018-10-16 | 中国科学院大连化学物理研究所 | A kind of heterogeneous catalyst and its application in polyester preparation |
| CN109059125A (en) * | 2018-08-07 | 2018-12-21 | 东南大学 | A kind of photocatalysis water filtering type air purifier |
| CN109821411A (en) * | 2019-03-23 | 2019-05-31 | 谭乔 | A kind of novel wide-band response type light catalyst composition and preparation method thereof |
| CN110152437A (en) * | 2018-02-08 | 2019-08-23 | 彭万喜 | A kind of digester preparation method of microenvironment pollution control |
| CN113929245A (en) * | 2021-09-10 | 2022-01-14 | 中石化石油工程技术服务有限公司 | Method and system for recycling high-chlorine produced water of gas field |
-
2009
- 2009-12-28 CN CN200910186881A patent/CN101757900A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010712A (en) * | 2010-10-29 | 2011-04-13 | 东南大学 | Preparation method of Eu<3+>/TiO2 nanocrystal and application of Eu<3+>/TiO2 nanocrystal as fluorescent probe |
| CN102219395A (en) * | 2011-04-20 | 2011-10-19 | 东华大学 | Method for preparing ultra-hydrophilic zinc oxide/titanium oxide film by using layer-by-layer self-assembling method |
| CN103466960A (en) * | 2013-08-27 | 2013-12-25 | 天津儒创新材料科技有限公司 | Preparation method of photoinduction self-cleaning glass |
| TWI554329B (en) * | 2015-09-07 | 2016-10-21 | 明志科技大學 | Method for manufacturing activated carbon doped titanium oxide photocatalyst |
| CN105688886A (en) * | 2016-03-07 | 2016-06-22 | 山东源根化学技术研发有限公司 | Preparing method of water-soluble visible-light response photocatalysis degradation agent |
| CN105797709A (en) * | 2016-05-23 | 2016-07-27 | 中国科学院城市环境研究所 | Bismuth and zinc doped titanium dioxide photocatalyst and preparation method and application thereof |
| CN106881093A (en) * | 2017-02-22 | 2017-06-23 | 上海纳米技术及应用国家工程研究中心有限公司 | It is a kind of efficiently to remove formaldehyde spray and its preparation method and application |
| CN108659210A (en) * | 2017-03-29 | 2018-10-16 | 中国科学院大连化学物理研究所 | A kind of heterogeneous catalyst and its application in polyester preparation |
| CN108659210B (en) * | 2017-03-29 | 2020-08-21 | 中国科学院大连化学物理研究所 | Heterogeneous catalyst and application thereof in polyester preparation |
| CN107398138A (en) * | 2017-08-15 | 2017-11-28 | 天津市职业大学 | A kind of photocatalysis gray haze abatement agent and preparation method thereof |
| CN107398138B (en) * | 2017-08-15 | 2019-06-11 | 天津市职业大学 | A kind of photocatalysis gray haze abatement agent and preparation method thereof |
| CN110152437A (en) * | 2018-02-08 | 2019-08-23 | 彭万喜 | A kind of digester preparation method of microenvironment pollution control |
| CN109059125A (en) * | 2018-08-07 | 2018-12-21 | 东南大学 | A kind of photocatalysis water filtering type air purifier |
| CN109059125B (en) * | 2018-08-07 | 2020-08-11 | 东南大学 | Photocatalysis water filters formula air purifier |
| CN109821411A (en) * | 2019-03-23 | 2019-05-31 | 谭乔 | A kind of novel wide-band response type light catalyst composition and preparation method thereof |
| CN113929245A (en) * | 2021-09-10 | 2022-01-14 | 中石化石油工程技术服务有限公司 | Method and system for recycling high-chlorine produced water of gas field |
| CN113929245B (en) * | 2021-09-10 | 2024-02-09 | 中国石油化工集团有限公司 | Method and system for recycling high-chlorine produced water of gas field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101757900A (en) | Superhydrophilic nano titanium dioxide photocatalysis composite membrane as well as preparation method and application thereof | |
| Zhang et al. | Preparation and performances of mesoporous TiO2 film photocatalyst supported on stainless steel | |
| Wang et al. | Bioinspired synthesis of photocatalytic nanocomposite membranes based on synergy of Au-TiO2 and polydopamine for degradation of tetracycline under visible light | |
| Gong et al. | Research progress of photocatalytic sterilization over semiconductors | |
| Yu et al. | Enhanced catalytic performance of a bio-templated TiO2 UV-Fenton system on the degradation of tetracycline | |
| Tiwari et al. | Efficient application of nano-TiO2 thin films in the photocatalytic removal of Alizarin Yellow from aqueous solutions | |
| US20100193449A1 (en) | Materials and methods for removing arsenic from water | |
| Wang et al. | Preparation of carbon foam-loaded nano-TiO2 photocatalyst and its degradation on methyl orange | |
| Paz | Composite titanium dioxide photocatalysts and the" adsorb & shuttle" approach: a review | |
| CN102380366B (en) | Bismuth and silicon doped nano titanium dioxide photocatalyst, preparation and application thereof | |
| Tiwari et al. | Photocatalytic degradation of amoxicillin and tetracycline by template synthesized nano-structured Ce3+@ TiO2 thin film catalyst | |
| CN113976103B (en) | High-activity visible-light-driven photocatalyst for wastewater treatment and preparation method thereof | |
| Kar et al. | An activated carbon fiber supported Fe 2 O 3@ bismuth carbonate heterojunction for enhanced visible light degradation of emerging pharmaceutical pollutants | |
| Phattepur et al. | Synthesis of gadolinium-doped TiO2 thin films by sol–gel spin coating technique and its application in degradation of rhodamine-B | |
| Zhao | Research progress of semiconductor photocatalysis applied to environmental governance | |
| JP2001070802A (en) | Photocatalyst film and its production | |
| CN1269568C (en) | Composite nano-photo-catalyst used for purifying air | |
| KR100925247B1 (en) | Photocatalyst, synthetic method and its application for wastewater treatment | |
| Yigit et al. | A Study of the Photocatalytic Oxidation of Humic Acid on Anatase and Mixed-phase Anatase–Rutile TiO 2 Nanoparticles | |
| Chen et al. | Synthesis and characterization of recyclable PVA/SrTiO3/Ag2O composite with photocatalytic degradation performance of methylene blue | |
| KR19990024538A (en) | Method for producing titanium oxide photocatalyst film | |
| CN113262645A (en) | Self-cleaning composite ultrafiltration membrane and preparation method thereof | |
| CN110090657B (en) | Sepiolite composite catalyst, preparation method thereof, novel Fenton-like system and application thereof | |
| JP2002085967A (en) | Photocatalyst membrane and method of producing the same | |
| Mohammed et al. | Use of TiO2 in photocatalysis for air purification and wastewater treatment: A review |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100630 |