PHOTOCATALYST WITH CATALYTIC ACTIVITY EVEN IN VISIBLE-LIGHT RANGE

摘要

The photocatalyst according to the present inventionwhich exhibits a high catalytic function in thevisible-light range comprises an oxide composite having aheterojunction comprising a p-type oxide semiconductor andan n-type oxide semiconductor which have photocatalyticproperties with each other and at least one of which hasphotocatalytic properties even in the visible-light range.The p-type oxide semiconductor having photocatalyticproperties even in the visible-light range is exemplifiedby a perovskite-type oxide Ca(Zr0.95Y0.5)O3-8, and the n-typeoxide semiconductor by an anatase-type titanium oxide.