期刊
MATERIALS LETTERS
卷 138, 期 -, 页码 56-59出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2014.09.118
关键词
TiO2; Co(OH)(2); Photocatalytic; Nanocomposites; Semiconductors
资金
- National Natural Science Foundation of China [21376102]
- Natural Science Foundation of Guangdong Province, China [S2013010012199]
Co(OH)(2) modified TiO2 (Co(OH)(2)/TiO2) photocatalysts were fabricated by a simple precipitation method and characterized by XRD, TEM, N-2-physisorption, UV-vis DRS and PL. The photocatalytic H-2 evolution performance on TiO2 was significantly enhanced by loading Co(OH)(2). The optimum Co(OH)(2) loading content was found to be 0.25 mol%, yielding a H-2-evolution rate of 1946 mu mol h(-1) g(-1), being about 23 times of that on pure TiO2. This enhancement of photocatalytic H-2 evolution was attributed to the Co(OH)(2) clusters deposited on TiO2 surface, which can act as electron traps and thus facilitate the charge carrier separation. (C) 2014 Elsevier B.V. All rights reserved.
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