Ce–S codoped TiO2–SiO2 composite nanocrystalline film with visible light photocatalytic activity

A sol–gel method is used to synthesize Ce–S codoped TiO 2 –SiO 2 composite nanocrystalline films on the glass substrates in this paper. The influence of the metal/nonmetal ions codoping on both the physicochemical characteristics and photocatalytic performance of the composite film was studied. It w...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2017-02, Vol.28 (3), p.3013-3019
Main Authors: Yao, Yao, Guan, Ling-xiao, Ma, Yan, Yao, Ming-ming
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Materials Science
Optical and Electronic Materials
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Summary:A sol–gel method is used to synthesize Ce–S codoped TiO 2 –SiO 2 composite nanocrystalline films on the glass substrates in this paper. The influence of the metal/nonmetal ions codoping on both the physicochemical characteristics and photocatalytic performance of the composite film was studied. It was found that ions codoping induces a better charge separation and a smaller band gap energy, which are responsible for the improvement in the photo-degradation with respect to the acid naphthol red aqueous solution under visible light illumination. Moreover, the morphology, crystalline structures and compositions of the films were analyzed, and the doping mechanism was also investigated.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-016-5887-1