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Low Temperature Preparation and Characterization of N-doped and N-S-codoped TiO2 by Sol–gel Route

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Abstract

This paper reports a new method to prepare the N-doped and N-S-codoped anatase TiO2 photocatalysts at 100 °C. The as-prepared photocatalysts were characterized by means of XRD, Raman spectra, TEM, BET, UV–Vis diffuse reflectance spectra (DRS) and XPS. The results showed that the N-doping and N-S-codoping extended the absorbance spectra of TiO2 into visible region with different extent. The BET surface area of the N-S-codoped TiO2 photocatalysts was high up to 245 m2g−1. The results of degradation of methyl orange (MO) solution showed that the N-doped and N-S-codoped TiO2 photocatalysts exhibited higher photocatalytic activity than that of Degussa P-25 and the as-prepared pure TiO2 under visible irradiation. This property can be attributed to the results of synergetic effects of absorption in the visible light region, red shift in adsorption edge, good crystallization and large surface area of the as-prepared N-doped or N-S-codoped TiO2.

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Acknowledgments

This research was financial supported by the Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT, No. IRT0547) and the Cultivation Fund of the Key Scientific and Technical Innovation Project (No. 705036), Ministry of Education.

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Authors and Affiliations

  1. Key Laboratory of Silicate Materials Science and Engineering, Wuhan University of Technology, Ministry of Education, Wuhan, 430070, Hubei, P.R. China

    Yi Xie, Qingnan Zhao, Xiu Jian Zhao & Yuanzhi Li

  2. Material Testing Center of Wuhan, University of Technology, Wuhan, 430070, Hubei, P.R. China

    Qingnan Zhao

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  1. Yi Xie
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  2. Qingnan Zhao
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  3. Xiu Jian Zhao
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  4. Yuanzhi Li
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Correspondence to Xiu Jian Zhao.

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Xie, Y., Zhao, Q., Zhao, X.J. et al. Low Temperature Preparation and Characterization of N-doped and N-S-codoped TiO2 by Sol–gel Route. Catal Lett 118, 231–237 (2007). https://doi.org/10.1007/s10562-007-9175-9

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  • DOI: https://doi.org/10.1007/s10562-007-9175-9

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