Visible light sensitive photocatalysts, nitrogen-doped Ta2O5 powders

被引：95
作者：
Murase, T [1 ]
Irie, H [1 ]
Hashimoto, K [1 ]
机构：
[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 40期
关键词：
D O I：
10.1021/jp047874i
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 photocatalytic activities of nitrogen-doped Ta2O5 powders, Ta2O5-Nx (x = 0.10, 0.17, 0.24, 0.35) were evaluated by the decomposition of gaseous 2-propanol (IPA) under visible (Vis) and ultraviolet (UV) light irradiations with the same absorbed photon number (1.4 x 10(14) quanta(.)cm(-2.)sec(-1)). Ta2O5-xNx could decompose IPA under both Vis and UV light irradiations, and its photocatalytic activity depended on the dopant concentration and the wavelength of the irradiated light. The values of photonic efficiency decreased with increasing the degree of x when irradiating with both Vis and UV lights.
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页码：15803 / 15807
页数：5
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