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Photocatalytic activity of (sulfur, nitrogen)-codoped mesoporous TiO thin films

Research on Chemical Intermediates, ISSN: 0922-6168, Vol: 36, Issue: 1, Page: 27-37
2010
  • 26
    Citations
  • 0
    Usage
  • 24
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    26
    • Citation Indexes
      26
  • Captures
    24

Conference Paper Description

Nitrogen and sulfur co-doped mesoporous TiO thin films were fabricated using thiourea as a doping resource by the combination of the sol-gel and evaporation-induced self-assembly (EISA) processes. Scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), N adsorption-desorption, and UV-vis spectra were performed to characterize the assynthesized mesoporous TiO materials. The XPS result shows that O-Ti-N and O-Ti-S bonds in the (S, N)-codoped mesoporous TiO were formed. The resultant mesoporous (S, N)-codoped TiO exhibited anatase framework with a high porosity and a narrow pore distribution. After being illuminated for 3 h, methyl orange (MO) could be degraded completely by the co-doped sample under the ultraviolet irradiation, whereas mesoporous TiO film without doping could only degrade 60% MO. After being illuminated by visible light, the water contact angles of the mesoporous co-doped TiO samples decreased slightly, but the pure TiO mesoporous film exhibited no change in the hydrophilicity. © Springer Science+Business Media B.V. 2010.

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