Visible Light Activity and Photoelectrochemical Properties of Nitrogen-Doped TiO2

作者：Shanmugasundaram Sakthivel, Marcin Janczarek, Horst Kisch · 发表于：The Journal of Physical Chemistry B · 年份：2004 · DOI：10.1021/jp046857q · 被引用次数：727 · 研究领域：Advanced Photocatalysis Techniques、TiO2 Photocatalysis and Solar Cells、Electronic and Structural Properties of Oxides

Nitrogen-doped titania photocatalysts were prepared from titanium tetraisopropoxide or titanium tetrachloride and thiourea. The yellow powders obtained after calcination at 400−600 °C photocatalyze the mineralization of 4-chlorophenol by visible light (λ ≥ 455 nm). Different from previously published data these materials do not contain sulfur but instead nitrogen as the doping component inducing visible light photocatalysis. The measured band gap narrowing of 40−80 meV and the anodic shift of the quasi Fermi potential of 40−90 mV are in agreement with recent results on nitrogen-doped titania.