EVALUATION REAGENT OF PHOTOCATALYST CAPACITY, AND EVALUATION METHOD OF PHOTOCATALYST CAPACITY

摘要

PROBLEM TO BE SOLVED: To provide an evaluation method of a photocatalyst capacity, capable of accurately evaluating a visible-light reacting type photocatalyst product. SOLUTION: After the visible-light reacting-type photocatalyst product 1 is colored by a reagent containing azo dye, the photocatalyst product 1 is irradiated with a visible light, to measure the change in the color of the reagent, and the color change of the reagent is used as an index for measuring and evaluating the photocatalyst capacity. Since the evaluation reagent 4 for the photocatalyst capacity contains the azo dye and the reagent containing the azo dye is very difficult to be decomposed by visible light, the visible light reacting-type photocatalyst product 1 can be evaluated properly. COPYRIGHT: (C)2009,JPO&INPIT