| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photocatalyst unit used in a fuel tank of e.g. an automobile and being capable of efficiently removing sulfur from a fuel. <P>SOLUTION: The photocatalyst unit is one for use in the fuel tank and provided with a photocatalyst and a light source, wherein the photocatalyst contains at least one semiconductor photocatalyst selected from among TiO<SB>2</SB>, ZnO, WO<SB>3</SB>and SnO<SB>2</SB>and at least one cocatalyst carried by the photocatalyst and selected from among Mo, Ni, Co and Re. Desirably, the ratio, the cocatalyst/the semiconductor catalyst, is 0.001-0.1 by mass. <P>COPYRIGHT: (C)2003,JPO |
