Preparation, Characterization and Photocatalytic Activity of S, Sr-Codoped Nano-TiO2

Yu Liang Zhao; Fang Long Qiu; Jie Liu; Jia Chao Li

doi:10.4028/www.scientific.net/AMM.521.547

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 521Preparation, Characterization and Photocatalytic...

Preparation, Characterization and Photocatalytic Activity of S, Sr-Codoped Nano-TiO2

Abstract:

S, Sr-codoped TiO₂ were prepared by sol-gel mothod, using titanium (IV) n-butoxide, strontium nitrate and thiourea as precursors. And the samples were characterized by X-ray diffraction (XRD), Fourier infrared spectroscopy (FTIR), scanning electron microscopy (SEM). The results showed that the S, Sr-codoped TiO₂ were single-phase anatase structure, and the particle growth and crystal phase transformation can be restrained by doping. The photocatalytic activity and reusability of the catalysts under UV light (365nm) was investigated with methyl orange as the model compound. The results showed that S, Sr-codoped TiO₂ had the highest photocatalytic activity among all as-prepared samples. The kinetic study showed that this photocatalytic process coincided with the Langmuir-Hinshelwood (L-H) pseudo first order reaction model.

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Periodical:

Applied Mechanics and Materials (Volume 521)

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547-550

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.521.547

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Online since:

February 2014

Authors:

Yu Liang Zhao*, Fang Long Qiu, Jie Liu, Jia Chao Li

Keywords:

Photocatalyst, Photocatalytic Activity, S, Sr-Codoped TiO₂, Sol-Gel Method

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