SIZE EFFECT IN THE PHOTOCHEMICAL GENERATION OF HYDROGEN FROM WATER BY COLLOIDAL FE2O3 PARTICLES

被引:36
作者
CHATTERJEE, S
SARKAR, S
BHATTACHARYYA, SN
机构
关键词
D O I
10.1016/1010-6030(93)85027-6
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Colloidal Fe2O3 particles of various dimensions were prepared. Their crystal structure and optical properties were studied. These particles were used as photosensitizers for steady state water photolysis. The yield of H-2 generated is dependent on the particle size and the concentration of the colloids. The pH dependence is different for different particle sizes. The effects of methylviologen (MV2+) as an electron relay and CH3OH as a hole scavenger on the H-2 yield were also studied.
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页码:183 / 187
页数:5
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