Effect of lanthanide-doping into NaTaO3 photocatalysts for efficient water splitting

被引:291
作者
Kudo, A [1 ]
Kato, H [1 ]
机构
[1] Sci Univ Tokyo, Fac Sci, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, Japan
关键词
D O I
10.1016/S0009-2614(00)01220-3
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
The activities of water splitting over NiO/NaTaO3 photocatalysts were improved by doping of lanthanides, La, Pr, Nd, Sm, Gd, Tb and Dy into NaTaO3. Lanthanum was the most effective as a dopant. The apparent quantum yield at 270 nm amounted to approximate to 50%. Moreover, the deactivation observed for a non-doped NiO/NaTaO3 photocatalyst was suppressed. SEM observation suggests that these effects on the photocatalytic properties are mainly due to the decrease in the particle size and the characteristic step structure created by the doping. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:373 / 377
页数:5
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