| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a photocatalyst enhanced in the absorbance of visible light and increased in hydrogen producing speed due to visible light, and its manufacturing method. <P>SOLUTION: A tantalum sol, which contains fine tantalum particles in a colloidal state by chemical reaction, and an indium sol, which contains fine indium particles in a colloidal state by chemical reaction and the tantalum and indium particles are finely divided by a sol-gel method to obtain the photocatalyst increased in the specific surface area of the particles. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
