H2 evolution from H2O/H2O2/MWO4 (M = Fe2+, Co2+, Ni2+) systems by photocatalytic reaction

被引：13
作者：
Chen, P. [1 ]
He, H. -Y. [1 ]
机构：
[1] Shaanxi Univ Sci & Technol, Coll Mat Sci & Engn, Xianyang 710021, Peoples R China
来源：
RESEARCH ON CHEMICAL INTERMEDIATES | 2014年 / 40卷 / 05期
关键词：
Semiconductors; Band gap; H-2; evolution; Photocatalysis; WATER-SPLITTING SYSTEM; VISIBLE-LIGHT; WO3; ATAO(2)N; MEDIATOR; TAON; O-2; CA; SR; BA;
D O I：
10.1007/s11164-013-1092-5
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
H-2 evolution from H2O/H2O2/MWO4 (M = Fe2+, Co2+, Ni2+) systems was studied for the first time. The MWO4 (M = Fe2+, Co2+, Ni2+) powders were synthesized by a salt aqueous solution reaction followed by calcination. The light band gaps of the FeWO4, CoWO4, and NiWO4 powders determined from UV-vis absorption spectra were 1.83, 2.58, and 2.86 eV, respectively. The experiment on the H-2 evolution from H2O/H2O2/MWO4 (M = Fe2+, Co2+, Ni2+) systems indicated that the efficiency increased in order of FeWO4 > CoWO4 > NiWO4 and was larger under sunlight with strong intensity than under visible light.
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页码：1947 / 1956
页数：10
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