| abstract |
PROBLEM TO BE SOLVED: To provide a photocatalyst exhibiting sustainably high catalytic activity and a photocatalyst coating agent using the same. SOLUTION: Titanium oxide is a main component, and a metal compound other than titanium oxide (for example, zirconium, hafnium, vanadium, niobium, tantalum, molybdenum, tungsten, manganese, iron, cobalt, nickel, copper, Mono-oxides of metals such as aluminum, gallium, indium, tin or sodium oxide, Potassium oxide, magnesium oxide, calcium oxide, barium oxide, lanthanum oxide, cerium oxide, zinc oxide, A photocatalyst comprising sodium carbonate, potassium carbonate, magnesium carbonate, calcium carbonate, barium carbonate, lanthanum carbonate, cerium carbonate or zinc carbonate). |