Photocatalytic Degradation of Methyl Orange on Ce-Tio2 under Visible Light Irradiation

In this article, the Ce-TiO2 have been prepared by Sol-gel method to study the photocatalytic activity of Ce-TiO2 photocatalyst. The effects of doping ratio on the crystal structure, Absorption spectrum and photocatalytic degradation of methylene were studied and characterized by X-ray diffraction and UV-visible spectrometer. The results indicate:with the increase of the CeO2 doping content to TiO2, the absorption efficiency of the Ce-TiO2 correspondingly increases. When CeO2 doping content is 50%, the absorbing wavelength threshold value reaches the highest 520nm. The rate of degradation on methylene of the sample is higher than that of Degause P25 after 4h irradiated by sunshine. When the ratio is 11%, the degradation rate reaches the highest 87%. The paper systemical investigate the relationships between CeO2 doping tatio, microstructure, and macro-performances of Ce-TiO2 for the first time. These results provide guild for the future inductrical production of efficient photocatalyst.