The TiO2element is a kind of attractive environment repairing material, and it has the biological chemical inertness, non-toxic, low cost, insoluble in water, and the advantages of reusable, which has very important prospect in the organic pollutant treatment. However, the TiO2solar energy utilization rate is low, only in the wavelength range of less than 375 nm ultraviolet light response, photogenerated carrier recombination rate, these defects limit the scope of its application, and the rare earth doping is an effective way to solve these defects one. This paper introduces the mechanism of r...
