Effect of the Ce-Doped TiO₂ on the Photocatalysis Degradation of MB

Abstract:

In this paper, we prepared a series of powders (pure TiO₂ and Ce-doped TiO₂) by sol-gel method and characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), infrared spectrometer (IR) and UV spectrophotometer. The results indicated that the doped Ce influence the crystal structure of TiO₂ and improve the temperature of crystal transformation. In the degradation of MB experiment, after 5 hours, the degradation efficiency of them (pure TiO₂ , Ce-doped TiO₂ and P₂₅) under UV light is about 99.1%, while under visible light,Ce-doped TiO₂ is about 60% higher than pure TiO₂ and P₂₅, up to 73%. This illustrates that the doped Ce increase the absorption to visible light and improve the photocatalytic efficiency.Key Words: TiO₂, Ce-doped TiO₂, photocatalyst, sol-gel method, crystal form

• Periodical: Applied Mechanics and Materials (Volume 320)
• Pages: 220-225
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.320.220
• Online since: May 2013
• Authors: Xiao Ye Fu, Xiu Hong Liang
• Keywords: Ce-Doped TiO₂, Crystal Form, Photocatalyst, Sol-Gel Method, TiO₂

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