| 摘要 |
PROBLEM TO BE SOLVED: To provide a photocatalyst tile having both high abrasive resistance and harmful gas decomposability. SOLUTION: The photocatalyst tile comprises a tile substrate and a photocatalyst layer provided on the substrate. The photocatalyst layer contains photocatalyst particles and an alkyl silicate cured product, hasΔNOx of≥0.5μmol in the test method according to JIS R1701-1, and exhibits a color difference changeΔE of 5 or larger between before and after the following treatment: after rubbing of 1,200 times by a nylon brush, an aqueous 1%-concentration silver nitride solution is applied onto the photocatalyst layer, and irradiated with a BLB lamp at an illuminance of 2 mW/cm<SP>2</SP>for 20 min; a surplus silver nitride is cleaned and dried. COPYRIGHT: (C)2011,JPO&INPIT |
