METHOD FOR PREPARING COMPOSITE PHOTOCATALYST AND ITS DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method for preparing a composite photocatalyst capable of uniformly carrying a large quantity of noble metals on the surface of a photocatalyst in a shorter time than that in conventional methods. SOLUTION: A mixed liquid is prepared by mixing an alcohol aqueous solution dispersed and contained with the photocatalyst with an aqueous solution of a noble metal compound so that the composite photocatalyst is prepared which keeps the noble metal carried by the surface of the photocatalyst by irradiating the mixture solution with ultraviolet light and irradiation with the ultraviolet light is performed while exciting an ultrasonic wave. The composite photocatalyst preparing device is provided with an ultraviolet reflection device suitable for preparing the composite photocatalyst. COPYRIGHT: (C)2006,JPO&NCIPI