Manufacturing method of photocatalytic material, material for photoelectric conversion element, wear-resistant member and edible oil deterioration member, and photocatalytic material, photoelectric conversion element material, wear-resistant member and edible oil deterioration prevention member

摘要

It is an object to produce a metal titanium material in which a crystalline titanium oxide film is formed on the surface. The titanium material in which a crystalline titanium oxide film is formed on this surface is a material useful as a photocatalyst material exhibiting high function, a material for a photoelectric conversion element, an abrasion-resistant member, and an edible oil deterioration preventing member. A method for producing a titanium material in which a crystalline titanium oxide film is formed on a surface, comprising: (1) a step of roughening the surface of the titanium material to form a roughened material, (2) a titanium compound on the surface of the roughened material The step of forming, (3) anodizing the material on which the titanium compound is formed on its surface, and forming the amorphous titanium oxide film, and (4) the material on which the amorphous titanium oxide film is formed on the surface, are in an atmospheric atmosphere. The manufacturing method characterized by including the process of heat-processing at a temperature of 300 degreeC or more, and forming a crystalline titanium oxide film.