| 摘要 |
PROBLEM TO BE SOLVED: To obtain photocatalyst particles which can effectively and economically perform the decomposition-removal of offensive odors, harmful substances in the air, and stains or wastewater treatment, water purification, anti-bacteria, anti-mildow, etc., and environmental purification by making ceramic which is inactive as a photocatalyst be supported on the surface of titania particles in an island shape. SOLUTION: Photocatalyst particles are prepared by a method in which water is adsorbed on the surface of titania particles, metal alkoxide is hydrolyzed on the surface of the particles by using the water, and ceramic which is the reaction product and inactive as a photocatalyst is adhered to the surface of the particles in an island shape. The photocatalyst particles is added into organic fibers plastics, etc., by kneading etc., and used. A kind of metal selected from among rhodium, ruthenium, palladium, etc., is supported on the surface of the titania particles. A kind of silica, zirconia, magnesia, calsia, etc., is used as the inactive ceramic. |
