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Preparation, characterization and photocatalytic activity of visible light driven chlorine-doped TiO2

  • Research Article
  • Published:
Frontiers of Chemistry in China

Abstract

A novel chlorine-doped titanium dioxide catalyst with visible light response was prepared by hydrolysis of tetrabutyl titanate in hydrochloric acid. The catalyst samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS). Results showed that the doped element of Cl lowered the temperatures of phase transformation of TiO2 from amorphous to anatase and from anatase to rutile. The absorption edge of chlorine-doped TiO2 calcined at 300°C shifted to visible light region. X-ray photoelectron spectroscopy results proved that chlorine existed in the TiO2 crystal lattice as anion. The photocatalytic degradation of phenol showed that under visible light (λ > 400 nm) irradiation, the chlorine-doped TiO2 calcined at 300°C displayed the best performance, the degradation ratio of phenol was 42.5% after 120 min.

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Authors and Affiliations

  1. School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240, China

    Long Mingce, Cai Weimin, Chen Heng & Xu Jun

Authors
  1. Long Mingce
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  2. Cai Weimin
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  3. Chen Heng
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  4. Xu Jun
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Corresponding author

Correspondence to Cai Weimin.

Additional information

Translated from Chinese Journal of Catalysis, 2006, 27(10): 890–894 [译自: 催化学报]

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Long, M., Cai, W., Chen, H. et al. Preparation, characterization and photocatalytic activity of visible light driven chlorine-doped TiO2 . Front. Chem. China 2, 278–282 (2007). https://doi.org/10.1007/s11458-007-0050-4

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  • DOI: https://doi.org/10.1007/s11458-007-0050-4

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