Photocatalytic Degradation of Methyl Orange on Ce-TiO₂ under Visible Light Irradiation

Abstract:

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.

• Periodical: Advanced Materials Research (Volume 529)
• Pages: 528-531
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.529.528
• Online since: June 2012
• Authors: Zhi Gang Duan, Qin Yu Li, Xv Yun Zhao, Zhi Ming Peng, Shen Hua Zhang
• Keywords: Ce-TiO₂, Degradation of Methyl Orange, Photocatalytic Activity

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