Modified TiO2 For Environmental Photocatalytic Applications: A Review
摘要:
This paper summarizes recent research dealing with development of titanium dioxide (TiO2) used for environmental applications. TiO2 plays the most important role owing to its excellent chemical and physical properties. However, the TiO2 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 TiO2 via the modification of its electronic and optical properties. Doping TiO2 using either anions or cations is one of the typical approaches that has been largely applied. Coupling TiO2 with a narrow bad gap semiconductor (MxOy/TiO2 or MxSy/TiO2) represents another approach. This work aims to encompass the new progress of TiO2 for an efficient application in water and wastewater treatment under visible light, emphasizes the future trends of TiO2 in the environment, and suggests new research directions, including preparation aspects for the development of this promising material.
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关键词:
DOPED TITANIUM-DIOXIDE VISIBLE-LIGHT IRRADIATION PULSED-LASER DEPOSITION BILAYER-TYPE PHOTOCATALYST CHEMICAL-VAPOR-DEPOSITION NANOTUBE ARRAYS ELECTRODE THIN-FILMS ANATASE TIO2 PHOTOELECTROCATALYTIC DEGRADATION
DOI:
10.1021/ie303468t
被引量:
年份:
2013
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