ENHANCEMENT OF THE PHOTOCATALYTIC ACTIVITY OF CDS POWDER FOR HYDROGEN EVOLUTION FROM AQUEOUS SULFITE SOLUTION BY HEAT-TREATMENT WITH KCL

被引：10

作者：

KOBAYAKAWA, K ^{[1
]}

MIURA, T ^{[1
]}

SUZUKI, A ^{[1
]}

SATO, Y ^{[1
]}

FUJISHIMA, A ^{[1
]}

机构：

[1] UNIV TOKYO,FAC ENGN,DEPT SYNTHET CHEM,TOKYO 113,JAPAN

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 1993年 / 30卷 / 03期

关键词：

D O I：

10.1016/0927-0248(93)90140-X

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

By heating a fine amorphous CdS precipitate with KCl powder, the precipitate become a crystallite, the specific surface area decreased and the photocatalytic activity for hydrogen production from 1 mol dm-3 Na2SO3 solution was enhanced. The effects of experimental factors such as the molar mixing ratio of KCl to CdS, heating temperature and heating time on the photocatalytic activity and the specific surface area were investigated. The most active CdS photocatalyst, superior to any as-received, highly active CdS that can be purchased in Japan, was obtained by heat treatment for 8 h with a mixing ratio of 0.5 at 450-degrees-C. Its quantum yield at 460 nm was 0.035 at 25-degrees-C.

引用

页码：201 / 209

页数：9

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