| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple and easy method for producing a titanium oxide solution which develops a photocatalyst activity not only by receiving ultraviolet light but also by receiving visible light, is suitable for coating, e.g., an indoor use material requiring an environmental cleaning function, and is excellent in glossiness and adhesiveness; the titanium oxide solution; and a photocatalyst coating material prepared by using the titanium oxide solution. SOLUTION: In the method for producing a titanium oxide solution, a solution containing titanium hydroxide and prepared by reacting a mixture consisting of a titanium (III) compound and a titanium (IV) compound with an aqueous ammonia solution is subjected to a hydrothermal treatment at a temperature higher than the boiling point of the solution containing titanium hydroxide. COPYRIGHT: (C)2005,JPO&NCIPI
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