Effects of molybdenum substitution on the photocatalytic behavior of BiVO4

被引:195
作者
Yao, Weifeng [1 ]
Iwai, Hideo [2 ]
Ye, Jinhua [1 ]
机构
[1] Natl Inst Mat Sci, Photocatalyt Mat Ctr, Tsukuba, Ibaraki 3050047, Japan
[2] Natl Inst Mat Sci, Mat Anal Stn, Tsukuba, Ibaraki 3050047, Japan
关键词
D O I
10.1039/b713338c
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Transition metal doping has always suffered from the disadvantage of reduction of photocatalytic activity because the dopant ions can form a discrete level in the forbidden band of the photocatalyst resulting in low mobility of electrons and holes in the dopant level and thus lowered activity. However, in this study the photocatalytic activity of an efficient visible-light sensitive photocatalyst, BiVO4, for water oxidation or organic compound degradation was found to be remarkably enhanced by molybdenum doping. The role of molybdenum doping in enhancing the photocatalytic activity of BiVO4 was investigated and discussed based on the changes of the surface acidity of the photocatalyst.
引用
收藏
页码:1426 / 1430
页数:5
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