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Publication Detail
Acceleration effects of phosphate modification on the decay dynamics of photo-generated electrons of TiO2and its photocatalytic activity
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Jing L, Cao Y, Cui H, Durrant JR, Tang J, Liu D, Fu H
  • Publication date:
  • Pagination:
    10775, 10777
  • Journal:
    Chemical Communications
  • Volume:
  • Issue:
  • Status:
  • Print ISSN:
The surface modification with a proper amount of phosphate accelerates the dynamic decay of photogenerated electrons in the nanocrystalline anatase TiO 2 film in the presence of O 2 , consequently prolonging greatly the lifetime of photogenerated holes so as to improve the charge separation of TiO 2 and then its photocatalytic activity for degrading gas-phase acetaldehyde and liquid-phase phenol mainly based on the transient absorption spectra and the measurements of electrochemical O 2 reduction and the produced hydroxyl radical amount. The acceleration effects are attributed to the increased amount of adsorbed O 2 by means of the curves of O 2 temperature-programmed desorption. © 2012 The Royal Society of Chemistry.
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