CN1654118A - Preparation method of stainless steel screen load TiO2 nanometer membrane photochemical catalyst - Google Patents
Preparation method of stainless steel screen load TiO2 nanometer membrane photochemical catalyst Download PDFInfo
- Publication number
- CN1654118A CN1654118A CN 200410016334 CN200410016334A CN1654118A CN 1654118 A CN1654118 A CN 1654118A CN 200410016334 CN200410016334 CN 200410016334 CN 200410016334 A CN200410016334 A CN 200410016334A CN 1654118 A CN1654118 A CN 1654118A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel cloth
- photochemical catalyst
- preparation
- titanium alkoxide
- 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
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000010935 stainless steel Substances 0.000 title claims description 29
- 239000003054 catalyst Substances 0.000 title claims description 23
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title abstract 10
- 239000012528 membrane Substances 0.000 title 1
- 239000010936 titanium Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 12
- -1 titanium alkoxide Chemical class 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 9
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 33
- 239000004744 fabric Substances 0.000 claims description 28
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 8
- 238000003618 dip coating Methods 0.000 claims description 6
- 206010013786 Dry skin Diseases 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- 239000003112 inhibitor Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910001994 rare earth metal nitrate Inorganic materials 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 4
- 229920000620 organic polymer Polymers 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- 229940043237 diethanolamine Drugs 0.000 claims description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 2
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 4
- 239000002202 Polyethylene glycol Substances 0.000 claims 1
- 229920001223 polyethylene glycol Polymers 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 9
- 238000000576 coating method Methods 0.000 abstract description 9
- 230000001699 photocatalysis Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007598 dipping method Methods 0.000 abstract 2
- 239000011941 photocatalyst Substances 0.000 abstract 2
- 239000010408 film Substances 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229960003511 macrogol Drugs 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000010718 Oxidation Activity Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002389 environmental scanning electron microscopy Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 238000007210 heterogeneous catalysis Methods 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
The preparation process of stainless steel wire net supported nanometer TiO2 film as photocatalyst includes dipping and lifting clean stainless steel wire net in stable titanium alkoxide sol to form wet TiO2 film and drying 80-120 deg.c, repeating the dipping and drying step until reaching the required film thickness, and high temperature treating at 300-600 deg.c to prepare the stainless steel wire net supported nanometer TiO2 film as photocatalyst. The present invention has the features of simple process, low production cost, high coating strength, small TiO2 grains and high photocatalytic activity.
Description
Technical field
The present invention relates to preparation, particularly stainless steel cloth load TiO inorganic and that solid material is chemical
2The preparation method of nanometer film photochemical catalyst.
Background technology
Photochemical catalyst is the key component of photocatalytic process, and the activity of photochemical catalyst and immobilization are that can photocatalysis technology a practical deciding factor.Employed photochemical catalyst mostly is a nano-TiO in heterogeneous catalysis research at present
2N type semiconductor.TiO
2Band-gap energy be 3.2ev, being equivalent to wavelength is the 387.5nm photon energy.Work as TiO
2When being subjected to wavelength less than the UV-irradiation of 387.5nm, electron transition on the valence band is to conduction band, produce free electron (e-) and hole (h+), thereby this nano material has extremely strong photochemical catalytic oxidation restoring function, can oxidation or decompose various organic compounds and the part inorganic compound, have extremely strong sterilizing function simultaneously.
In recent years, nano-TiO
2Material got extensive use at aspects such as antifouling, antibiotic, deodorization, air cleaning, water treatment and environmental pollution improvements.As TiO
2Powder directly applies to the organic pollution in the photocatalytic degradation waste water, sticks one deck nano-TiO at material surfaces such as glass, pottery and metal building material goods, household electrical appliance, coating
2Powder, and have from clean function; Stick nano-TiO at porous sieve plate material surfaces such as organic polymer, metal or potteries
2Can be applicable to indoor air photocatalysis and purification.In order to improve TiO
2The photocatalytic activity of powder is at TiO
2In a spot of other metal components that often mix.Although these TiO
2Class coating material and TiO
2Powder is compared, and has non-secondary pollution, reusable, TiO
2Particle and series of advantages such as matrix formation combines by force, but because the surface coverage and the nano-TiO of binder
2Reasons such as the particle diameter of powder (because polymerization) is bigger cause TiO
2The quantum efficiency of photochemical catalyst (being photocatalytic activity) reduces greatly.But at supported porous TiO of matrix surface original position such as glass, metal materials
2Nano thin-film, this TiO
2Nano thin-film and above-mentioned TiO
2Class coating material has tangible difference, at first TiO
2After the nano thin-film process high-temperature process, its TiO
2Produced chemical bond between particle and the matrix, its strength of coating obviously improves; Secondly because TiO
2Grain diameter is little and be porous, and has the energy gap of broad and bigger specific area, can cause the obvious raising of its photocatalytic activity.Therefore, the exploitation of such material is expected to have broad application prospects at aspects such as environmental protection, sewage disposal, air cleanings.
Summary of the invention
The purpose of this invention is to provide a kind of stainless steel cloth load TiO
2The technology of preparing of nanometer film photochemical catalyst.
The invention provides preparation stainless steel cloth load TiO
2The method of nanometer film photochemical catalyst, be stainless steel cloth with cleaning from stable titanium alkoxide sol, adopt dip-coating method to make TiO
2Wet film repeats to lift for several times after 80～120 ℃ of dryings, cooling, up to required film thickness, after 80～120 ℃ of dryings, 300～600 ℃ of high-temperature process make stainless steel cloth load TiO
2The nanometer film photochemical catalyst.
Above-mentioned titanium alkoxide sol is Ti (OC
4H
9)
4-C
2H
5OH-H
2The O system, the colloidal sol of butyl titanate, ethanol, water proportioning is in the ratio of 1: 20～60: 0～0.05 (mol ratio).
In the above-mentioned titanium alkoxide sol process for preparation, under 1000～2000 rev/mins strong agitation, with butyl titanate Ti (OC
4H
9)
4Slowly be added drop-wise in the ethanol-water mixture that contains organic inhibitor, rare-earth metal nitrate and macromolecule dispersing agent, after the butyl titanate adding finishes, further stir 0.5～2h.
Described organic inhibitor is a kind of of triethanolamine, diethanol amine or monoethanolamine, described organic inhibitor: butyl titanate is: 0.01～0.5: 1 (mol ratio).
Described rare-earth metal nitrate is a kind of of cerous nitrate, lanthanum nitrate or samaric nitrate, described rare-earth metal nitrate: butyl titanate is: 0.002～0.04: 1 (mol ratio).
Described water soluble organic polymer dispersant is Macrogol 600～10000, and described organic polymer dispersant: butyl titanate is: 0.01～0.5: 1 (mol ratio).
Above-mentioned clean stainless steel cloth is common Cr13 stainless steel cloth, and 20～60 order grids are through dilute hydrochloric acid liquid corrosion 10～40min of 0.05～0.3M, 500～800 ℃ of high-temperature process 0.5～3h in water cleaning 2～4 times and the air atmosphere.
Above-mentioned TiO
2Nanometer film is to make matrix with clean stainless steel cloth to adopt dip-coating method preparation, TiO from the titanium alkoxide sol
2Wet film repeats to lift 2～6 times after the taking-up cooling, up to required film thickness at 80～120 ℃ of drying 5～30min.Final TiO
2Wet film is through 80～120 ℃ of drying 5～30min, is raised to 300～600 ℃ with the programming rate of 3-6 ℃/min then in air atmosphere and handles 0.5～2h, naturally cools to room temperature at last in stove and obtains.
Employing sol-gel technology provided by the present invention prepares stainless steel cloth load TiO by dip-coating method
2The technology of nanometer film photochemical catalyst, its advantage is: raw materials such as butyl titanate are easy to get and cheap, TiO
2Film thickness is easy to control, strength of coating is high, TiO
2The little and active height of photochemical catalytic oxidation in footpath, thereby the photochemical catalyst that adopts this technology of preparing to develop is expected to have broad application prospects at aspects such as environmental protection, sewage disposal, air cleanings.
Technology of preparing of the present invention has that technology is simple, production cost is low, strength of coating height, TiO
2Footpath is little by (20～50nm) and the high characteristics of photocatalytic activity.
The specific embodiment
Embodiment 1
At first, get the 100ml absolute ethyl alcohol, under 800～1500 rev/mins strong agitation, successively slowly add 8.5ml butyl titanate and 4.8ml triethanolamine, after adding finishes, further stir 10～30min.And then add the mixture of 0.1g cerous nitrate, 3.5g Macrogol 600,10ml absolute ethyl alcohol and 1ml water, and and continue to stir 0.5～2h, stablized, even, transparent colloidal sol.The stainless steel cloth that adopts is the Cr13 stainless steel cloth, 20～60 order grids, through rare HCl solution corrosion, water clean and air atmosphere in 500～800 ℃ of processing, obtain surface cleaning, cover the stainless steel cloth matrix of even oxide-film.
Making matrix with the stainless steel cloth of cleaning adopts dip-coating method to make TiO from above-mentioned colloidal sol
2Wet film at 80～120 ℃ of down dry 5～30min, takes out in air and repeats to lift 3～4 times after the cooling then.This wet film is at 80～120 ℃ of down dry 3～30min, then furnace temperature risen to 300～600 ℃ with the programming rate of 3-6 ℃/min and handles 0.2～2h, naturally cools to room temperature at last in stove, promptly makes stainless steel wire load TiO
2The nanometer film photochemical catalyst.Partial properties index to product is measured, and ESEM (SEM) shows TiO
2Coating is by the TiO of uniformity
2Nano particle is formed, and its granular size is 50～80nm, TiO
2There are a large amount of nano-pores between particle and the particle; The photochemical catalytic oxidation activity rating is presented at room temperature, gas flow is that 1.6L/min, wavelength are under the UV-irradiation of 254nm, the conversion ratio of formaldehyde～100%.
Embodiment 2
With with embodiment 1 identical operations, difference is butyl titanate and triethanolamine are joined in the absolute ethyl alcohol after being pre-mixed again.
Finally the partial properties index of product is measured, shown that it has identical result with embodiment 1 resulting product.
Embodiment 3
With being embodiment 1 identical operations, difference is the water in the mixture of cerous nitrate, Macrogol 600, absolute ethyl alcohol and water is removed.
To prepared TiO
2The nanometer film photochemical catalyst is measured, and ESEM (SEM) shows TiO
2Coating is by the TiO of uniformity
2Nano particle is formed, and its granular size is 20～50nm, TiO
2There are a large amount of nano-pores between particle and the particle; The photochemical catalytic oxidation activity rating is presented at room temperature, gas flow is that 1.6L/min, wavelength are under the UV-irradiation of 254nm, the conversion ratio of formaldehyde～100%.
Claims (8)
1, a kind of stainless steel cloth load TiO
2The preparation method of nanometer film photochemical catalyst, be stainless steel cloth with cleaning from stable titanium alkoxide sol, adopt dip-coating method to make TiO
2Wet film repeats to lift for several times after 80～120 ℃ of dryings, cooling, and up to required film thickness, after 80～120 ℃ of dryings, 300～600 ℃ of high-temperature process make stainless steel cloth load TiO
2The nanometer film photochemical catalyst.
2, stainless steel cloth load TiO according to claim 1
2The preparation method of nanometer film photochemical catalyst is characterized in that: described titanium alkoxide sol is Ti (OC
4H
9)
4-C
2H
5OH-H
2The O system, the mol ratio of butyl titanate, ethanol, water is: 1: 20～60: 0～0.05.
3, stainless steel cloth load TiO according to claim 1 and 2
2The preparation method of nanometer film photochemical catalyst, it is characterized in that: described titanium alkoxide sol compound method, under 1000～2000 rev/mins strong agitation, butyl titanate slowly is added drop-wise in the ethanol-water mixture that contains organic inhibitor, rare-earth metal nitrate and macromolecule dispersing agent, after the butyl titanate adding finishes, further stirred 0.5～2 hour.
4, stainless steel cloth load TiO according to claim 3
2The preparation method of nanometer film photochemical catalyst is characterized in that: the organic inhibitor described in the titanium alkoxide sol compound method is: triethanolamine, diethanol amine or monoethanolamine a kind of.
5, stainless steel cloth load TiO according to claim 3
2The preparation method of nanometer film photochemical catalyst is characterized in that: the rare-earth metal nitrate described in the titanium alkoxide sol compound method is: cerous nitrate, lanthanum nitrate or samaric nitrate a kind of.
6, stainless steel cloth load TiO according to claim 3
2The preparation method of nanometer film photochemical catalyst is characterized in that: the water soluble organic polymer dispersant described in the titanium alkoxide sol compound method is: polyethylene glycol (600～10000).
7, stainless steel cloth load TiO according to claim 1
2The preparation method of nanometer film photochemical catalyst, it is characterized in that: the stainless steel cloth of employing is the Cr13 stainless steel cloth, 20～60 order grids, through rare HCl solution corrosion, water clean and air atmosphere in 500～800 ℃ of processing, obtain surface cleaning, cover the stainless steel cloth matrix of even oxide-film.
8, stainless steel cloth load TiO according to claim 1
2The preparation method of nanometer film photochemical catalyst is characterized in that: clean stainless steel cloth is made matrix and is adopted dip-coating method to make TiO from the titanium alkoxide sol
2Wet film, and through 80～120 ℃ of dryings, can repeat to lift 2-6 time after the cooling in the air, up to required film thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410016334 CN1654118A (en) | 2004-02-13 | 2004-02-13 | Preparation method of stainless steel screen load TiO2 nanometer membrane photochemical catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410016334 CN1654118A (en) | 2004-02-13 | 2004-02-13 | Preparation method of stainless steel screen load TiO2 nanometer membrane photochemical catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1654118A true CN1654118A (en) | 2005-08-17 |
Family
ID=34892229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410016334 Pending CN1654118A (en) | 2004-02-13 | 2004-02-13 | Preparation method of stainless steel screen load TiO2 nanometer membrane photochemical catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1654118A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345116A (en) * | 2011-10-14 | 2012-02-08 | 中南大学 | Method for manufacturing nano-TiO2 coating bracket |
| CN107261860A (en) * | 2017-06-23 | 2017-10-20 | 哈尔滨工业大学 | A kind of method that sol-gal process prepares metal oxide membrane for water treatment |
| CN108636396A (en) * | 2018-05-29 | 2018-10-12 | 沈阳理工大学 | A kind of preparation method of pollution control silk screen |
| CN114634268A (en) * | 2022-05-19 | 2022-06-17 | 北京北方宏拓环境科技有限公司 | Multistage treatment system for initial rainwater pollutants |
-
2004
- 2004-02-13 CN CN 200410016334 patent/CN1654118A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345116A (en) * | 2011-10-14 | 2012-02-08 | 中南大学 | Method for manufacturing nano-TiO2 coating bracket |
| CN107261860A (en) * | 2017-06-23 | 2017-10-20 | 哈尔滨工业大学 | A kind of method that sol-gal process prepares metal oxide membrane for water treatment |
| CN108636396A (en) * | 2018-05-29 | 2018-10-12 | 沈阳理工大学 | A kind of preparation method of pollution control silk screen |
| CN108636396B (en) * | 2018-05-29 | 2021-02-02 | 沈阳理工大学 | Preparation method of pollution treatment silk screen |
| CN114634268A (en) * | 2022-05-19 | 2022-06-17 | 北京北方宏拓环境科技有限公司 | Multistage treatment system for initial rainwater pollutants |
| CN114634268B (en) * | 2022-05-19 | 2022-08-02 | 北京北方宏拓环境科技有限公司 | Multistage treatment system for initial rainwater pollutants |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Preparation and performances of mesoporous TiO2 film photocatalyst supported on stainless steel | |
| JP4803180B2 (en) | Titanium oxide photocatalyst, its production method and use | |
| CN101062475A (en) | Metasilicate hole material assembled nano titanium oxide composite material and preparation method thereof | |
| CN102500351B (en) | Nano composite laminated film based on TiO2 and preparation method thereof | |
| CN102099110A (en) | Process for producing carbon substrates loaded with metal oxides and carbon substrates produced in this way | |
| CN103100398A (en) | Preparation method of natural zeolite loaded one-dimensional TiO2 nanowire with high catalytic activity | |
| CN105056956B (en) | A kind of visible light-responded iron titanate sodium light catalysis material and its preparation method and application | |
| CN101041129A (en) | Yttria/titanium dioxide nano composite material and preparation process thereof | |
| CN1228267C (en) | Low-temperature prepn process of self-cleaning nano Tio2 glass | |
| CN1657186A (en) | Preparation method of modified film by nanometer titanium dioxide doped of noble metal rare earth oxide | |
| CN113908829A (en) | High-dispersion platinum-titanium dioxide photocatalyst and preparation method and application thereof | |
| CN1686823A (en) | Method for preparing anatase type nano-titanium dioxide in high phase-transition temperature and high specific area | |
| CN101734716B (en) | Preparation method of non-high-temperature resistant base material loaded with controllable-crystal nano titanium dioxide on surface | |
| CN1069847C (en) | Solid super strong acid photocatalyst | |
| CN1304107C (en) | Preparation process of photocatalyzing active nano TiO2 collosol | |
| CN100400606C (en) | Method of preparing anatase type titanium dioxide dispersion at low temperature by hot-liquid method | |
| CN1654118A (en) | Preparation method of stainless steel screen load TiO2 nanometer membrane photochemical catalyst | |
| JPH10167727A (en) | Modified titanium oxide sol, photocatalyst composition and its forming agent | |
| CN102587610A (en) | Visible-light response self-cleaning fluorocarbon aluminum veneer with nitrogen-doped nanometer titanium dioxide film coated on surface | |
| CN108927124B (en) | Easily-recycled recyclable nanocrystalline TiO 2Coated hollow glass micro-pearl catalyst and preparation method thereof | |
| CN1830565A (en) | Synthesis method of nanometer crystal mesopore titanium dioxide photocatalyst | |
| CN1579999A (en) | Preparation of multi-photon nano composite membrane self-cleaning (antibacterial) ceramic by combined technique | |
| CN1370619A (en) | Prepn of loaded nano TiO2 photocatalyst | |
| CN108499561B (en) | Silver nanoparticle/titanium dioxide nanoflower composite material and preparation method and application thereof | |
| CN100411731C (en) | Method for preparing nano powder photocatalyst |
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 |