Hydrogen generation from photocatalytic water splitting over TiO2 thin film prepared by electron beam-induced deposition

被引:64
作者
Huang, Chao-Wei [1 ]
Liao, Chi-Hung [1 ]
Wu, Jeffrey C. S. [1 ]
Liu, Yu-Chang [2 ]
Chang, Chun-Ling [2 ]
Wu, Chih-Hung [2 ]
Anpo, Masakazu [3 ]
Matsuoka, Masaya [3 ]
Takeuchi, Masato [3 ]
机构
[1] Natl Taiwan Univ, Dept Chem Engn, Taipei 10617, Taiwan
[2] Atom Energy Council, Inst Nucl Energy Res, Tao Yuan 32546, Taiwan
[3] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Osaka, Japan
关键词
TiO2 thin film; Electron beam-induced deposition; Photocatalytic water-splitting; SENSITIZED SOLAR-CELLS; FABRICATION; EVAPORATION; EFFICIENCY; NANOTUBES;
D O I
10.1016/j.ijhydene.2010.08.113
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Photocatalytic TiO2 thin films were prepared via an electron beam-induced deposition (EBID) method. The effects of post-calcination treatment on the properties of the prepared TiO2 thin films were studied. X-ray diffraction (XRD), scanning electron microscope-energy dispersive spectrometry (SEM-EDS), and UV-V is absorption spectrometry were performed to reveal the crystallinity, surface morphology, chemical composition, and light absorbance of the prepared TiO2 thin films. The photoelectrochemical characteristics of the TiO2 thin films were investigated with a potentiostat. Under UV irradiation, a photocurrent of 2.1 mA was observed for the TiO2 thin film with post-calcination at 500 degrees C. A water-splitting reaction was conducted over the TiO2 thin film with the best photoelectrochemical performance. The yields of hydrogen and oxygen were 59.8 and 30.6 mu mole, respectively, after 8 h of reaction under UV irradiation. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:12005 / 12010
页数:6
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