USE OF COATING LIQUID COMPRISING ORGANIC COLORING MATTER FOR FORMING PHOTOCATALYST-CONTAINING COATING FILM

摘要

A photocatalyst film coating liquid and coating method wherein it is possible, when a photocatalyst film coating liquid has been coated onto a substrate, to verify whether film formation has occurred, and to verify that the transparent photocatalyst film so formed has photocatalytic ability. When a transparent photocatalyst film coating liquid has been coated onto a substrate, it may be verified that film formation has occurred, and it may be verified that a photocatalyst film formed by coating using a coating liquid of an organic dye whose molecule comprises a metallic element incorporated into the photocatalyst film coating liquid has photocatalytic ability.