期刊
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
卷 81, 期 -, 页码 1627-1635出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2017.05.243
关键词
Hydrogen evolution; Pt/TiO2; Polyols; Carboxylic acids; Saccharides; Chemical yields; Quantum yields
资金
- Ministry of Education, Culture, Sports, Science, and Technology of Japan [24610055]
Photocatalytic generation of H-2 from water over titanium dioxide (TiO2) has received a great deal of interest for developing a renewable and clean energy source. It is initiated by charge-separation in TiO2 upon photoexcitation. The electron reduces water to generate H-2 while the hole oxidizes hydroxide to generate hydroxyl radicals. However, water-splitting into O-2 and H-2 is not easy because of the large up-hill reaction and rapid reverse reaction. It is well known that the use of electron-donating sacrificial agents (hole scavengers) remarkably accelerates TiO2-photocatalyzed H-2 evolution in which the hydroxyl radical is consumed by the sacrificial agents. Thus, sacrificial H-2 production over a TiO2 photocatalyst is a convenient method to generate H-2 from biomass and waste. This paper reviews the sacrificial H-2 production from polyols, carboxylic acids, and saccharides, focusing on the chemical yield of H-2 production.
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