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.

引用

页码：201 / 204

页数：4

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