Inorganic material comprising photocatalyst layer, method for producing same, and photocatalyst coating liquid for inorganic material
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United States of America Patent
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Dec 29, 2015
Grant Date -
Aug 22, 2013
app pub date -
Jul 26, 2011
filing date -
Jul 29, 2010
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Abstract
Disclosed is an inorganic material that can exhibit an excellent photocatalytic gas decomposition function while maintaining an abrasion resistance on a level that is usually required of this type of inorganic materials. The inorganic material includes an inorganic material base and a photocatalyst layer that is formed by firing and is provided on the surface of the inorganic material base, the photocatalyst layer containing: photocatalyst particles; zirconia particles having a BET specific surface area of not less than 10 m2/g or crystalline zirconia particles having a mean crystallite diameter of less than 20 nm; and an alkali silicate. The inorganic material including the photocatalyst layer exhibits a high photocatalytic gas decomposition function while maintaining an abrasion resistance on a level that is usually required of this type of inorganic materials.
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