CN1100836C - Process for synthesizing titanium sol-gel paint under light induction - Google Patents

Process for synthesizing titanium sol-gel paint under light induction Download PDF

Info

Publication number
CN1100836C
CN1100836C CN99109393A CN99109393A CN1100836C CN 1100836 C CN1100836 C CN 1100836C CN 99109393 A CN99109393 A CN 99109393A CN 99109393 A CN99109393 A CN 99109393A CN 1100836 C CN1100836 C CN 1100836C
Authority
CN
China
Prior art keywords
titanium sol
gel
gel paint
titanium
sol
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.)
Expired - Fee Related
Application number
CN99109393A
Other languages
Chinese (zh)
Other versions
CN1279261A (en
Inventor
姚建年
管自生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Chemistry CAS
Original Assignee
Institute of Photographic Chemistry of CAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Institute of Photographic Chemistry of CAS filed Critical Institute of Photographic Chemistry of CAS
Priority to CN99109393A priority Critical patent/CN1100836C/en
Publication of CN1279261A publication Critical patent/CN1279261A/en
Application granted granted Critical
Publication of CN1100836C publication Critical patent/CN1100836C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The present invention belongs to the technical field titanium sol-gel coating and manometer titanium dioxide materials, which particularly relates to a method for synthesizing titanium sol-gel coating under light induction. The present invention is characterized in that the method comprises the following steps: taking 1 to 50 wt% of titanate, 50 to 98 wt% of diluting agent and 0.5 to 10 wt% of hydrolyst to mix in a reaction vessel; preparing the titanium sol-gel coating by irradiating the raw materials by light source containing ultraviolet rays for 30 minutes to 10 hours. The present invention has the advantages of simple technology and low cost, the titanium sol-gel can be converted into titanium dioxide with high catalytic activity without sintering, and the titanium dioxide can effectively purify air and waste water and clean surfaces.

Description

A kind of method of synthesizing titanium sol-gel paint under light induction
The invention belongs to titanium sol-gel paint and titanium dioxide nano material technical field, particularly a kind of method of synthesizing titanium sol-gel paint under light induction.
Mankind's activity makes atmospheric pollution and water pollute more and more serious.Discharge obnoxious flavoures such as a large amount of sulfurous gas, carbon monoxide as industrial coal.Along with the automobile industry development of China, the air severe contamination that lower valency nitride that motor vehicle exhaust is a large amount of and CO (carbon monoxide converter) gas make each big and medium-sized cities; Many on the other hand house decorative materials also can slowly discharge such as small molecules harmful organic substances such as aldehydes, phenols, alcohols, also have our human body, pet, food also to discharge bad smell, and our health in these invisible gas serious threats.People are faced with the shortage of Freshwater resources on the one hand, and great amount of water resources is subjected to serious pollution on the other hand.So improving the living environment of human and other life is whole world question of common concern.Because titanium dioxide nano-particle produces hole-electron pair during greater than the photon irradiation of its semiconductor energy gap at energy, the synergy of hole-electron pair not only has intensive oxidative degradation ability to the pollutent in the environment, but also have sterilizing function, so be the good functional materials of environment purification.
Can widespread use TiO 2The photocatalytic degradation function of nanoparticle need to solve two key issues, the supporting of first titanium dioxide optical catalyst layer; It two is active height of photocatalyst layer of titanium dioxide.
The titanium sol-gel is a kind of coating that is easy to be supported on the base material, and that the titanium sol-gel that existing titanium sol-gel process is prepared is supported on the titanium dioxide catalytic activity that substrate surface forms is low, so need just have good photocatalytic activity by sintering.Present titanium process for preparing sol-gel is that titanium organometallic compound catalytic hydrolysis under acid, alkali or water effect is formed the titanium sol-gel, and is dry then or be coated on substrate surface and form tiny non-crystal state TiO 2Nanoparticle, its catalytic activity is very low, improve its catalytic activity and need make it be transformed into the high TiO of crystallization degree usually at 400-500 ℃ sintering temperature 2Particle.As Mikula, M. etc. have reported with tetrabutyl titanate at water and HNO on " Materials science wall bulletin " magazine (1995, the 14 volumes, 615-616 page or leaf) [J.Mater.sci.lett.1995,14,615-616] 3Etc. preparation titanium sol-gel under the system, be supported on then on the base material, sinter TiO into 450 ℃ with good catalytic activity 2Hiroaki and for example, T. etc. are at " youth Ge Miuer " periodical (1997, the 13 volumes, the 360-364 page or leaf) [Langmuir 1997,13,360-364] are gone up and have been prepared the titanium sol-gel with isopropyl titanate, be supported on then on the quartz substrate, with just having good catalytic activity behind 500 ℃ of temperature sintering.Japanese Patent JP08 for another example, 299,789 disclose the titanium organic metal salt have been dissolved in the organic solvent, are coated on substrate surface then, and the titanium organic metal salt is hydrolyzed into aqueous TiO after the solvent evaporates 2Nanoparticle layers, TiO is burnt till in baking then 2The nano-particle catalyst layer.But these methods can only be applied to the substrate surface of heatproofs such as glass, pottery, metal.
The object of the present invention is to provide a kind of method of synthesizing titanium sol-gel paint under light induction, the titanium sol-gel paint of preparing can directly be supported on the substrate surface, obstructed oversintering directly becomes the TiO with good light catalytic activity 2Nanoparticle, with purify air effectively, waste water and clean surface.
The preparation method of titanium sol-gel paint of the present invention utilizes ultraviolet photon energy, induces and control the structure of colloidal growth, makes titanium sol-gel paint have property.Its preparation method is as follows:
At room temperature, by weight percentage, with titanic acid ester or titanate 1-50%, thinner 50-98%, hydrolyst 0.5-10% pipettes in the reactor and mixes, prepared titanium sol-gel paint with containing ultraviolet light source light according to 30 minutes-10 hours, above-mentioned weight percent sum is 100%.
Wherein titanic acid ester or titanic acid ester salt can be selected from and add following a kind of or several the mixing by arbitrary proportion: Ti (OC 4H 9) 4, Ti (OC 2H 5) 4, Ti (iso-OC 3H 7) 4Or TiCl 4Deng; Hydrolyst is: concentrated hydrochloric acid, nitric acid, sulfuric acid, Glacial acetic acid or water etc.; Thinner can be dehydrated alcohol or anhydrous methanol etc.Wherein containing ultraviolet light source is light sources such as basic, normal, high pressure mercury lamp.
The purposes of titanium sol-gel paint of the present invention:
This titanium sol-gel paint directly is supported on the base material makes titania functional material with nuisance in the empty G﹠W of photocatalytic degradation.
Wherein said base material is textiles, non-woven fabrics, paper, glass, pottery, steel, aluminium, stone material, timber, resin, plastics etc.
The coating process for preparing above-mentioned titania functional material is: the titanium sol-gel paint for preparing is coated on the base material with methods such as dipping, dip-coating, spraying, spin coating or diffusion are coated with, then at room temperature, the mobile diluent evaporates that allows by air is fallen, and is supported on the very long high Detitanium-ore-type TiO of crystallization degree that is transformed into of titanium sol-gel paint on the base material 2, this TiO that supported 2Base material have high catalytic activity.To base material wide adaptability.
The titanium sol-gel method is a kind of method that is widely used in the preparation nano material.It has the advantages such as composition of regulation system according to the above ratio, regulates the microstructure of titanium sol-gel, can make the functional materials of unique properties.
The titanium sol-gel paint that the present invention prepares under the irradiation of UV-light, on carrier, can directly become titanium dioxide with highlight catalytic active, can effectively utilize the ultraviolet degradation dyestuff of ultraviolet source as the 1# sample of embodiment 1, the results are shown in embodiment 1 (accompanying drawing 1A).With the high voltage mercury lamp of 400W as light source and sample pool at a distance of the 15cm place to 1 * 10 -5MolL -1The rhodamine B dyestuff degrade, a state from Figure 1A only needs 30 minutes to the b state, and the 2# sample of embodiment 1 is without the sample of ultraviolet lighting synthetic titanium sol-gel paint preparation, and catalytic activity is low, the a state is degraded to the b state from Figure 1B, then needs 10 hours.
The result shows from the Raman spectrometry, and the 1# sample crystallization degree of embodiment 1 is good, and TiO is arranged 2The characteristic peak 140cm of Detitanium-ore-type -1Occur, and the 2# sample does not have tangible TiO 2(comparative result is seen accompanying drawing 2) appears in the Raman peak.
The 1# sample of embodiment 1 also can utilize the faint ultraviolet degradation aldehydes gas of luminescent lamp (seeing the 1# in the accompanying drawing 3) efficiently., the aldehydes gas of 16ppm can be reduced to about 1ppm in one hour, and the same terms 2# sample only reduces 5ppm as light source with the 20W luminescent lamp.Embodiment 3 shows with the 1# sample of embodiment 1 also can remove hydrogen sulfide (seeing accompanying drawing 4) at the ultraviolet lamp of 20W under as the situation of light source effectively.
Embodiment 4 has compared and utilizes tetrabutyl titanate to prepare TiO at different light time synthetic titanium sol-gel paint 2Sample is to aldehydes gas catalyzed degradation ability, the degradation results of comprehensive 2 pairs of acetaldehyde of embodiment, the mercury lamp illumination that shows 400W was the preferred time in 1 hour, and the catalytic activity difference of the catalytic activity of the sample that 2 hours, 5 hours titanium sol-gel of illumination makes and 1 hour sample is little.
Embodiment 5,6,8,9 has examined or check the different initial concentrations of tetrabutyl titanate, different hydrolyst and different methods and has been supported on the catalytic activity experiment for preparing sample on the different base materials.The system of the tetrabutyl titanate illumination of embodiment 5 usefulness 1% preparation in 30 minutes, dip-coating is on cotton, and getting area is 5 * 5cm 2Cloth was 8.67 * 10 with 50ml concentration in 6 hours -6MolL -1Rhodamine B degrade substantially (seeing accompanying drawing 6).The tetrabutyl titanate of embodiment 6,5% is that the system that the light source illumination reaction prepared in 1 hour is spin-coated on the glass substrate with the 400W high voltage mercury lamp, and area is 5 * 5cm 2It is 8.67 * 10 that sample can be finished 50ml concentration in 4 hours substantially -6MolL -1Rhodamine B degraded (seeing accompanying drawing 7), and the not sample degraded in more than 10 hour of illumination can not degrade fully (seeing accompanying drawing 8) of embodiment 7 the same terms.Embodiment 8, and the system of high density titanic acid ester preparation is supported on the cotton, can finish the degraded of above-mentioned identical rhodamine B substantially in 40 minutes.The system (embodiment 9) of the mixed with titanium acid esters preparation of high density is supported on the cotton, and its catalytic activity and embodiment 8 are approaching.The peptide collosol-gelatum system of embodiment 10 tetrachloro peptides hydrolysis preparation under photoinduction is supported on the sample for preparing on the dacron terylene cloth, and can finish 50ml concentration substantially at 1 hour is 8.75 * 10 -6MolL -1Rhodamine B degraded (the results are shown in accompanying drawing 9).Embodiment 5-10 carries out the condition of rhodamine B degradation experiment with embodiment 1.
By the synthetic titanium sol-gel of photoinduction, then this colloid is coated on the titanium dioxide that substrate surface directly becomes high catalytic activity, this preparation method's advantage is:
The one, coating process is simply various, as dip-coating, dipping, spin coating, spraying etc., does not need expensive equipment.
The 2nd, normal conditions just have high catalytic activity after being coated on temperature sintering on 400 ℃ of the sample needs that prepare on the base material with sol-gel method.The titanium sol-gel that the inventive method is prepared does not need sintering just to become the titanium dioxide of high catalytic activity, so simplified technology, has reduced cost.
The 3rd. because manufactured samples does not need sintering,, can be mass-produced so be applicable to various base materials.
The 4th. owing to be form and the base material effect of titanium sol-gel with coating, rather than with TiO 2Particle form is simply attached on the base material, so the titanium dioxide that forms combines firmly with base material.
The 5th. the catalytic activity height.
Description of drawings:
The TiO that Fig. 1 embodiment 1 forms on dacron terylene cloth 2Degraded to the dyestuff rhodamine B
A.1# sample is to the degraded ultraviolet absorption curve of dyestuff rhodamine B (a → b illumination 30 minutes);
B.2# sample is to the degraded ultraviolet absorption curve of dyestuff rhodamine B (a → b illumination 10 hours);
Fig. 2 embodiment 1 is supported on the dacron terylene cloth and forms TiO 2Raman spectrum;
The sample of Fig. 3 embodiment 2 under luminescent lamp to the degraded of aldehydes gas;
Under ultraviolet lamp, the degrade hydrogen sulfide experiment of the 1# sample of Fig. 4 embodiment 3;
The different light time synthetic titanium sol-gel paint of Fig. 5 embodiment 4 prepares TiO 2Sample is to acetaldehyde gas
The experiment of body catalyzed degradation;
The titanium sol-gel paint degradation experiment of the tetrabutyl titanate illumination of Fig. 6 embodiment 51% preparation in 30 minutes
(a → b illumination 6 hours);
Fig. 7 embodiment 6 is spin-coated on the TiO on the glass substrate 2To the degradation experiment of dyestuff (a → b illumination 4 hours);
The TiO of Fig. 8 embodiment 7 not illumination colloidal dispersions preparation 2Be supported on the glass substrate degradation experiment to dyestuff
(a → e illumination 10 hours);
The peptide collosol-gelatum system of Fig. 9 embodiment 10 tetrachloro peptides preparations be supported on the dacron terylene cloth sample its urge
Voltinism can be tested (a → b illumination 60 minutes).
Drawing reference numeral:
A, b, c, d, the e. curve of spectrum
F. the collection of illustrative plates of the dacron terylene cloth collection of illustrative plates collection of illustrative plates of sample h.2# of sample g.1#
Embodiment 1 (weight percent)
Tetrabutyl titanate with 10%, 89% dehydrated alcohol, 1% concentrated hydrochloric acid (concentration is 36.5%) pipettes in the reactor, and the high voltage mercury lamp with 400W in the time of stirring is light source illumination reaction 1 hour, makes titanium sol-gel paint.With area is 10 * 10cm 2The dacron terylene cloth directly immerse colloidal solution, rapidly take out to be placed on to dry in the air and make the 1# sample.To pipette with the reactant of above-mentioned weight percent concentration in the reactor, not illumination is stirred and was made titanium sol-gel paint in 1 hour, is 10 * 10cm with area then 2The dacron terylene cloth directly immerse and be coated with feed liquid, take out to be placed on to dry in the air rapidly and make the 2# sample.
1#, 2# sample are cut 5 * 5cm respectively 2Two, in the high voltage mercury lamp 15cm of distance 400W place's illumination, to 50ml 1 * 10 -5MolL -1Rhodamine B solution degrade.The result shows that the 1# sample only needs about 30 minutes with rhodamine B degrade substantially (comparative result is seen Figure 1A) fully by a → b, the 2# sample wants 10 hours ability to finish degraded (comparative result is seen Figure 1B) substantially by a → b, and its UV spectrum is by Shimadzu uv-1601pc spectrophotometer.
Measure the Raman structure (seeing accompanying drawing 2) of 1#, 2# sample with 2000 type Raman spectrographs (production of Britain Renishaw company).
Embodiment 2
Respectively getting two areas is 10 * 10cm 2With 1# and the 2# sample of embodiment 1, be that aldehydes gas in the 4L device carries out degradation experiment to volume respectively.Wherein the initial concentration of aldehydes gas is 16ppm in the experimental installation, the luminescent lamp of built-in 20W.Detect once (accompanying drawing 3 as a result) with gas-chromatography (SHIMADZUGC-17AG type) every 20 minutes concentration to aldehydes gas.
Embodiment 3
With the 1# sample titanium sol-gel paint of embodiment 1, use spraying method at plastics film surface preparation one deck TiO 2, getting two areas is 10 * 10cm 2Plastics film, gas decomposition apparatus with embodiment 2, select for use the 20W ultraviolet lamp as light source, initial concentration is degraded for the 40ppm hydrogen sulfide, detect once (the results are shown in Figure 4) every 20 minutes concentration hydrogen sulfide with gas-chromatography (SHIMADZUGC-17AG type)
Embodiment 4
With embodiment 1 reaction reagent system and concentration, the high voltage mercury lamp with 400W is light source illumination reaction 30 minutes, the gel-sol colloidal coating that prepared 3#, 4#, 5# in 2 hours, 5 hours respectively.And on dacron terylene cloth, support 3#, 4#, 5# sample with the dipping method.Respectively getting two areas respectively is 10 * 10cm 2Sample with the gas decomposition apparatus of embodiment 2, is degraded for the 16ppm aldehydes gas to initial concentration respectively, detects once (the results are shown in Figure 5) with gas-chromatography (SHIMADZUGC-17AG type) every the 20 minutes concentration to aldehydes gas.
Embodiment 5 (weight percent)
Tetrabutyl titanate with 1%, 98.5% dehydrated alcohol, 0.5% concentrated hydrochloric acid (concentration is 36.5%) pipettes in the reactor, and the mercury lamp with 400W in the time of stirring is light source illumination reaction 30 minutes, makes titanium sol-gel paint.With 10 * 10cm 2Cotton immerses titanium sol-gel paint, and takes out rapidly, places after 24 hours in air, and getting area is 5 * 5cm 2Cloth under the high voltage mercury lamp 15cm of distance 400W place's illumination, is 8.67 * 10 to 50ml concentration -6MolL -1Rhodamine B degrade (the results are shown in accompanying drawing 6).
Embodiment 6 (weight percent)
Tetrabutyl titanate with 5%, 94% dehydrated alcohol, 0.5% concentrated hydrochloric acid (concentration is 36.5%), 0.5% water pipettes in the reactor, and the high voltage mercury lamp with 400W in the time of stirring is light source illumination reaction 1 hour, make titanium sol-gel paint, use spin-coating method at 5 * 5cm 2Coating one deck titanium sol-gel paint is placed after 24 hours in the air on the glass substrate, under the high voltage mercury lamp 15cm of distance 400W place's illumination, is 6.75 * 10 to 50ml concentration -6MolL -1Rhodamine B degrade (the results are shown in Figure 7).
Embodiment 7
Each weight percentages of components without the colloidal dispersion of illumination preparation, uses spin-coating method at 5 * 5cm with embodiment 6 2Glass substrate on coating one deck titanium sol-gel paint, place after 24 hours in the air, under the high voltage mercury lamp 15cm of distance 400W place's illumination, be 6.75 * 10 to 50ml concentration -6MolL -1Rhodamine B degrade (the results are shown in Figure 8).
Embodiment 8 (weight percent)
Tetrabutyl titanate with 20%, 79% dehydrated alcohol, 1% concentrated hydrochloric acid (concentration is 36.5%) pipettes in the reactor, and the high voltage mercury lamp with 400W in the time of stirring is light source illumination reaction 1 hour, makes titanium sol-gel paint.With 10 * 10cm 2Cotton immerses the titanium sol-gel paint system, and takes out rapidly, places after 24 hours in air, and getting area is 5 * 5cm 2Cloth under the high voltage mercury lamp 15cm of distance 400W place's illumination, is 8.75 * 10 to 50ml concentration -6MolL -1Rhodamine B degrade (the results are shown in Figure 9).
Embodiment 9 (weight percent)
Tetrabutyl titanate with 20%, 30% tetraethyl titanate, 40% dehydrated alcohol, 10% concentrated nitric acid (concentration is 63%), pipette in the reactor, the high voltage mercury lamp with 400W in the time of stirring is light source illumination reaction 10 hours, makes titanium sol-gel paint coating.With 10 * 10cm 2Cotton immerses the titanium sol-gel paint system, and takes out rapidly, places after 24 hours in air, and getting area is 5 * 5cm 2Cloth under the high voltage mercury lamp 15cm of distance 400W place's illumination, is 8.75 * 10 to 50ml concentration -6MolL -1The rhodamine B test (result is with embodiment 8) of under the 400w high voltage mercury lamp, degrading.
Embodiment 10
By weight percentage with 10% titanium tetrachloride, 85% dehydrated alcohol, 5% concentrated nitric acid (concentration is 63%) pipettes in the reactor, is light source illumination reaction 1 hour with the 400W high voltage mercury lamp in the time of stirring, makes titanium sol-gel paint.With 10 * 10cm 2Dacron terylene cloth immerses the titanium collosol-gelatum system, and takes out rapidly, places after 24 hours in air, and getting area is 5 * 5cm 2Cloth is 8.75 * 10 to 50ml concentration -6MolL -1Rhodamine B degrade (the results are shown in accompanying drawing 9).

Claims (5)

1. the method for a synthesizing titanium sol-gel paint under light induction, it is characterized in that, by weight percentage: with titanic acid ester or titanate 1-50%, thinner 50-98%, hydrolyst 0.5-10%, pipette in the reactor and mix, prepared titanium sol-gel paint in 30 minutes-10 hours with containing ultraviolet light source light photograph;
Above-mentioned weight percent sum is 100%.
2. the method for synthesizing titanium sol-gel paint under light induction as claimed in claim 1 is characterized in that described titanic acid ester or titanate are Ti (OC 4H 9) 4, Ti (OC 2H 5) 4, Ti (iso-OC 3H 7) 4Or TiCl 4
3. the method for synthesizing titanium sol-gel paint under light induction as claimed in claim 2 is characterized in that described titanic acid ester or titanic acid ester salt can be one or more mixing wherein.
4. the method for synthesizing titanium sol-gel paint under light induction as claimed in claim 1 is characterized in that described hydrolyst is concentrated hydrochloric acid, nitric acid, sulfuric acid, Glacial acetic acid or water.
5. the method for synthesizing titanium sol-gel paint under light induction as claimed in claim 1 is characterized in that described thinner is dehydrated alcohol, water or anhydrous methanol.
CN99109393A 1999-06-30 1999-06-30 Process for synthesizing titanium sol-gel paint under light induction Expired - Fee Related CN1100836C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN99109393A CN1100836C (en) 1999-06-30 1999-06-30 Process for synthesizing titanium sol-gel paint under light induction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN99109393A CN1100836C (en) 1999-06-30 1999-06-30 Process for synthesizing titanium sol-gel paint under light induction

Publications (2)

Publication Number Publication Date
CN1279261A CN1279261A (en) 2001-01-10
CN1100836C true CN1100836C (en) 2003-02-05

Family

ID=5273881

Family Applications (1)

Application Number Title Priority Date Filing Date
CN99109393A Expired - Fee Related CN1100836C (en) 1999-06-30 1999-06-30 Process for synthesizing titanium sol-gel paint under light induction

Country Status (1)

Country Link
CN (1) CN1100836C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI459084B (en) * 2008-11-28 2014-11-01 Hon Hai Prec Ind Co Ltd Diffusion sheet and method for making same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1304493C (en) * 2002-09-20 2007-03-14 中国科学院化学研究所 ultraviolet and/or visible light active self-cleaning heteronitrogen titanium dioxide nano coating and mfg method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996029375A1 (en) * 1995-03-20 1996-09-26 Toto Ltd. Method of photocatalytically making the surface of base material ultrahydrophilic, base material having ultrahydrophilic and photocatalytic surface, and process for producing said material
CN1186774A (en) * 1998-01-14 1998-07-08 中国科学院固体物理研究所 Large mass TiO2 mesohole solid and preparing method
JPH10249211A (en) * 1997-03-18 1998-09-22 Sekisui Chem Co Ltd Manufacture of thin coat having photocatalytic activity

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996029375A1 (en) * 1995-03-20 1996-09-26 Toto Ltd. Method of photocatalytically making the surface of base material ultrahydrophilic, base material having ultrahydrophilic and photocatalytic surface, and process for producing said material
JPH10249211A (en) * 1997-03-18 1998-09-22 Sekisui Chem Co Ltd Manufacture of thin coat having photocatalytic activity
CN1186774A (en) * 1998-01-14 1998-07-08 中国科学院固体物理研究所 Large mass TiO2 mesohole solid and preparing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI459084B (en) * 2008-11-28 2014-11-01 Hon Hai Prec Ind Co Ltd Diffusion sheet and method for making same

Also Published As

Publication number Publication date
CN1279261A (en) 2001-01-10

Similar Documents

Publication Publication Date Title
Xu et al. Electrospun nanofibers of Bi-doped TiO2 with high photocatalytic activity under visible light irradiation
CN1222580C (en) Photocatalytic coating material having photocatalytic activity and adsorption property and method for preparating same
CN1116932C (en) Photochemical catalyst complex and its prepn.
Najafidoust et al. Uniform coating of TiO2 nanoparticles using biotemplates for photocatalytic wastewater treatment
KR100385301B1 (en) Novel titania photocatalyst and its manufacturing method
CN1308069C (en) High activity photo catalyzed air purifying powder material and its preparation method and application
CN1724146A (en) Preparation for load type nano composite photocatalyst for catalyzing oxidizing degrading organism under sun lighting
CN1788839A (en) Foamed aluminum carried titanium dioxide catalyst, its preparation method and uses
CN101041128A (en) The zinc oxide/titanium dioxide compound photocatalyst having core/case structure and the preparation and the application thereof
CN1657186A (en) Preparation method of modified film by nanometer titanium dioxide doped of noble metal rare earth oxide
CN1905940A (en) Photocatalyst based on composite oxide responsive to visible light and method for decomposition and removal of harmful chemical material using the same
CN1147543C (en) Titania nano-paint for photocatalytic decomposition of organic matter and its prepn
Ho et al. Enhanced photocatalytic activity of fish scale loaded TiO2 composites under solar light irradiation
CN1304107C (en) Preparation process of photocatalyzing active nano TiO2 collosol
Kubiak et al. A novel rapid microwave crystallization of photocatalysts for practical utility in the removal of phenol derivatives
CN1269565C (en) SiO2/TiO2 composite nanometer photocatalysis membrane for treating indoor light pollution air and preparing method thereof
CN1100836C (en) Process for synthesizing titanium sol-gel paint under light induction
CN1194922C (en) Nano self-cleaning super hydrophilic glass product production method
CN1267186C (en) Method for preparing nitrogen doped titania visible light catalyzer
CN106179442A (en) A kind of cerium and nitrogen co-doped titanium dioxide optical catalyst and its preparation method and application
CN1597090A (en) Preparation of photocatalyst without high temperature sintering treatment and its application
CN1927949A (en) Method of preparing anatase type titanium dioxide dispersion at low temperature by hot-liquid method
CN1281309C (en) TiO#-[2] based photocatalyst used for organic matter natural light degradation and preparation method thereof
Yang et al. Synthesis and characterization of silica-capped titania nanorods: An enhanced photocatalyst
CN108485346B (en) Non-toxic environment-friendly antifouling self-cleaning coating and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHEMISTRY INSTITUTE, CHINESE ACADEMY OF SCIENCES

Free format text: FORMER OWNER: INST. OF PHOTOGRAPHIC CHEMISTRY, CHINESE ACADEMY OF SCIENCES

Effective date: 20030411

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20030411

Address after: 100080 No. 2 North First Street, Haidian District, Beijing, Zhongguancun

Patentee after: Institute of Chemistry, Chinese Academy of Sciences

Address before: 100101 North Beach, Desheng Gate, Beijing, Chaoyang District

Patentee before: Photosensitive Chemical Inst., China Academy of Sciences

C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee