METHOD FOR PROCESSING OBJECT SUBSTANCE IN AQUEOUS SOLUTION, AND APPARATUS AND PHOTOCATALYST MATERIAL USED FOR THE METHOD

摘要

Disclosed is a method for decomposing an object substance dissolved or dispersed in an aqueous solution. This method is characterized by comprising a step wherein a photocatalyst material is immersed in the aqueous solution and then exposed to light energy and ultrasonic energy by irradiating the aqueous solution with a light ray and an ultrasonic wave at the same time. This method for processing an object substance is also characterized in that the photocatalyst material is composed of a titanium metal base and a titanium dioxide photocatalyst layer integrally formed on the surface of the base, and the photocatalyst layer has a thickness larger than 1 µm. Also disclosed are an apparatus and a photocatalyst material suitable for carrying out the method.