Method for preparing nanometer porous titanium oxide thick film

The invention discloses a making method of nanometer porous thick film of titanium oxide, which comprises the following steps: (1) adopting dilute nitric acid to disperse TiO2 nanometer particle; (2) blending the powder, water and pore former into spread coating slurry; (3) coating the TiO2 slurry o...

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Bibliographic Details
Main Authors YU WEIDONG, QIU JIJUN, LI XIAOMIN, GAO XIANGDONG
Format Patent
LanguageChinese
English
Published 08.12.2010
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
LIME, MAGNESIA
METALLURGY
MINERAL OR SLAG WOOL
REFRACTORIES
SLAG
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
TREATMENT OF NATURAL STONE
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Summary:The invention discloses a making method of nanometer porous thick film of titanium oxide, which comprises the following steps: (1) adopting dilute nitric acid to disperse TiO2 nanometer particle; (2) blending the powder, water and pore former into spread coating slurry; (3) coating the TiO2 slurry on the substrate through glass rod; blowing; (4) repeating the coating for several times until the needed thickness; (5) proceeding high-temperature heat disposal; adopting P-25 nanometer powder of Degussa company as the TiO2 powder, the carbowax as pore former, the glass (quartz glass, ITO or FTO conductive glass), monocrystalline silicon, sapphire and other materials as substrate. The thickness of the TiO2 film is controllable between 1 and 30um with grain size about 20-30nm, which simplifies the making method with cheap cost for large-scale manufacturing.
Bibliography:Application Number: CN2007139240