Preparation of N-Ce Co-Doped TiO₂ Nanopaticles and their Photocatalytic Performance under Visible Light

Abstract

In this present work, N-Ce co-doped TiO2 nanopaticles were prepared via sol-gel process and characterized by TG - DTA and XRD. Their performance of photocatalytic degradation of methylene blue under visible light were investigated. N-Ce co-doped TiO2 appeared to be somewhat more efficient than the starting TiO2. The effects of catalyst compsition, catalyst amount, reaction temperature and solution pH on their photocatalytic activity towards methylene blue were studied and discussed. Experiment results depicted that activeness of catalyst N0.4Ce0.06/TiO2 was highest. Using this catalyst, when the catalyst amount was 0.3 g/L，the reaction temperature was 40 °C and pH of the solution was 9.0 the degradation rate of mehylene blue in 4h could reach 94.00%.