PHOTOCATALYST MATERIAL, MEMBER WITH PHOTOCATALYST AND PRODUCTION THEREOF

• Main Author: IRIE KANJI
• Format: Patent
• Language: English
• Published: 13.02.2001
• Edition: 7
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a photocatalyst material and a member with a photocatalyst activating the photocatalytic action of titanium by visible light, sufficiently developing photocatalytic function even by light of a fluorescent lamp or the like and reduced in the effect on a human body or the like. SOLUTION: In a member 1 with a photocatalyst, a photocatalyst layer (photocatalyst material) 3 is formed on one side surface of a member main body 2 constituted of ceramics or the like. The photocatalyst layer 3 is constituted by filling a low temp. fused glass layer with a catalytically active granular material comprising an Ag-titanium oxide composite compsn. wherein an Ag metal layer is formed on the surface of a titanium oxide powder based on anatase. This photocatalyst layer 3 is activated by the irradiation with light based on visible light and oxidizes and reduces the contaminant, fungi or harmful gas adhering to the member 1 with the photocatalyst or floating in the vicinity thereof to decompose the same into harmless carbon dioxide, nitrogen gas or water.