| abstract |
The present invention provides a visible-light-responsive photocatalytic titanium oxide fine particle mixture, a dispersion thereof, a method for producing the dispersion, which can easily produce a photocatalyst thin film with high transparency that exhibits photocatalytic activity even with visible light (400 to 800 nm). A photocatalyst thin film and a member having a photocatalyst thin film on the surface. Visible light responsive photocatalytic titanium oxide fine particle mixture, characterized by comprising first titanium oxide fine particles in which a tin component and a transition metal component for improving visible light responsiveness (however, iron group element components are not included) in a solid solution, and an iron group element component. There are two types of titanium oxide fine particles, namely, the second titanium oxide fine particles in which the element component and the chromium group element component are solid-dissolved. |