期刊
ENERGY CONVERSION AND MANAGEMENT
卷 52, 期 5, 页码 2256-2261出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2010.12.026
关键词
Strontium titanate; Gold loading; Sol-gel method; Mesoporous assembly; Photocatalytic hydrogen production
资金
- Commission on Higher Education, Ministry of Education, Thailand
- Research Grant for Mid-Career University Faculty (RMU)
- Thailand Research Fund (TRF)
- Commission on Higher Education, Thailand
- Chulalongkom University, Thailand
The hydrogen production via the photocatalytic water splitting under UV irradiation using different compounds as hole scavengers (including methanol, formic acid, acetic acid, propanoic acid, hydrochloric acid, and sulfuric acid) under a low concentration range (< 8 vol.%) was investigated over the 1 wt.% Au-loaded mesoporous-assembled SrTiO3 nanocrystal photocatalyst. The results indicated that the hydrogen production efficiency greatly depended on the molecular structure, chemical properties, and concentration of the hole scavengers. Formic acid, which is the smallest and completely-dissociated water-soluble carboxylic acid, exhibited the highest hydrogen production enhancement ability. The 2.5 vol.% aqueous formic acid solution system provided the highest photocatalytic hydrogen production rate. (c) 2011 Elsevier Ltd All rights reserved.
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