期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 35, 期 21, 页码 11768-11775出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2010.08.020
关键词
Photoelectrochemical hydrogen; production; Ag/TiO2 nanocomposite thin film; Solar energy; Water-splitting; Nanotechnology
资金
- Texas Engineering Experiment Station (TEES)
- National Science Foundation [CBET-0753702]
- VPR Energy Resources Program
- Kuwait Institute for Scientific Research
- Texas AM University
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1212320] Funding Source: National Science Foundation
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0753702] Funding Source: National Science Foundation
Though less frequently studied for solar-hydrogen production, films are more convenient to use than powders and can be easily recycled. Anatase TiO2 films decorated with Ag nanoparticles are synthesized by a rapid, simple, and inexpensive method. They are used to cleave water to produce H, under UV light in the presence of methanol as a hole scavenger. A simple and sensitive method is established here to monitor the time course of hydrogen production for ultralow amounts of TiO2. The average hydrogen production rate of Ag/TiO2 anatase films is 147.9 35.5 amol/h/g. Without silver, it decreases dramatically to 4.65 0.39 amol/h/g for anatase TiO2 films and to 0.46 0.66 amol/hig for amorphous TiO2 films fabricated at room temperature. Our method can be used as a high through-put screening process in search of high efficiency heterogeneous photocatalysts for solar-hydrogen production from water-splitting. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
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