| 摘要 |
PROBLEM TO BE SOLVED: To provide a photocatalyst essentially comprising titanium oxide and a method of manufacturing the photocatalyst which can be used in the visible ray region by shifting the optical absorption edge to the visible ray side. SOLUTION: The photocatalyst consists of titanium oxide containing 0.001 to 0.5 at.% aluminum. The photocatalyst is manufactured by preparing a gel from a sol of titanium alkoxide with addition of aluminum alkoxide and calcining the gel. The photocatalyst is obtained in a powdery state or film state. |
