PHOTOCATALYST, SLURRY MIXTURE, FORMING MEMBER AND COATING, COATING FILM FORMING MEMBER, SINTERED BODY, GLASS-CERAMIC COMPOSITE, GLASS, BUILDING MATERIAL AND CLARIFICATION MATERIAL

摘要

Disclosed is a photocatalyst with excellent, stable photocatalytic activity. The photocatalyst contains a crystal having a nasicon structure. Here, the nasicon structure is represented by A_mE₂ (XO4)₃ (in the formula, a primary element A is one or more selected from the group composed of Li, Na, K, Cu, Ag, Mg, Ca, Sr and Ba; a secondary element E is one or more selected from the group composed of Zn, Al, Fe, Ti, Sn, Zr, Ge, Hf, V, Nb, and Ta; a tertiary element X is 1 or more selected from the group composed of Si, P, S, Mo, and W, and the coefficient is 0 or more, or 3 or less.)