| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photocatalyst material having a high nitrogen oxide removing effect under an atmospheric condition and capable of being regenerated by washing, and its manufacturing method. <P>SOLUTION: A solvent is removed from a coating layer formed by removing varnish containing particles of a photocatalyst (e.g., TiO<SB>2</SB>), a fluorine-containing copolymer (preferably fluorine content of 20 mass% or above) and the solvent to form a photocatalyst layer having a porous structure, which shows an equilibrium water content of 3-10 mass% at 20°C and 75% RH and having a specific surface area of 50-300 m<SP>2</SP>/g and having an NO<SB>2</SB>adsorption rate of 2 mmol or above per 1 kg of the photocatalyst layer. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
