Photocatalytic Activities of Ce3+-Doped TiO2 Thin Films Prepared by Sol-Gel Method

Shu Kai Zheng

doi:10.4028/www.scientific.net/AMR.239-242.1850

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Photocatalytic Activities of Ce³⁺-Doped TiO₂ Thin Films Prepared by Sol-Gel Method

Abstract:

A series of TiO₂ thin films with and without Ce³⁺ doping were successfully obtained on microscope glass slides by sol-gel method. The photocatalytic activities of the pure TiO₂ and Ce³⁺-doped TiO₂ thin films were evaluated by the degradation of rhodamine B solution. The effects of both Ce³⁺ contents and annealing temperatures on the photocatalytic activities of the samples were examined. The results indicated that the TiO₂ thin film with an atomic ratio of Ti:Ce=5:1 annealed at 300°C had a higher photocatalytic activity among the samples.