Anoxic Hydrogen Production over CdS-based Composite Photocatalysts under Visible Light Irradiation (λ≥420nm)

被引：0
|
作者：
Jang, Jum Suk [1 ]
Ji, Sang Min [1 ]
Lee, Jae Sung [1 ]
Li, Wei
Oh, Se Hyuk
机构：
[1] Pohang Univ Sci & Technol POSTECH, Dept Chem Engn, San 31 Hyoja Dong, Pohang 790784, South Korea
来源：
NEW DEVELOPMENT AND APPLICATION IN CHEMICAL REACTION ENGINEERING, 4TH ASIA-PACIFIC CHEMICAL REACTION ENGINEERING SYMPOSIUM (APCRE 05) | 2006年 / 159卷
关键词：
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A nano-bulk composite (NBC) photocatalyst based on bulk CdS and nanosize TiO2 nanoparticles was fabricated by precipitation method and sol-gel synthesis. Its photocatalytic hydrogen production rate from aqueous solution containing hole scavengers such as sulfide and sulfite under visible light irradiation (lambda >= 420nm) was higher than that of single-phase CdS photocatalyst by a factor of ca. 4.5. The formation of nanoscale heterojunctions between two phases seemed to cause an efficient electron-hole separation and contribute to the unprecedented high rate of hydrogen production under visible light.
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页码：201 / 204
页数：4
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