Modified TiO 2 For Environmental Photocatalytic Applications: A Review

作者：Rimeh Daghrir, Patrick Drogui, Didier Robert · 发表于：Industrial & Engineering Chemistry Research · 年份：2013 · DOI：10.1021/ie303468t · 被引用次数：1494 · 研究领域：TiO2 Photocatalysis and Solar Cells、Advanced Photocatalysis Techniques、Advanced Nanomaterials in Catalysis

This paper summarizes recent research dealing with development of titanium dioxide (TiO 2 ) used for environmental applications. TiO 2 plays the most important role owing to its excellent chemical and physical properties. However, the TiO 2 band edge lies in the UV region that makes them inactive under visible irradiation. In this regard, considerable efforts have been made to increase the visible light activity of TiO 2 via the modification of its electronic and optical properties. Doping TiO 2 using either anions or cations is one of the typical approaches that has been largely applied. Coupling TiO 2 with a narrow bad gap semiconductor (M x O y /TiO 2 or M x S y /TiO 2 ) represents another approach. This work aims to encompass the new progress of TiO 2 for an efficient application in water and wastewater treatment under visible light, emphasizes the future trends of TiO 2 in the environment, and suggests new research directions, including preparation aspects for the development of this promising material.