Enhanced photocatalysis by coupling of anatase TiO2 film to triangular Ag nanoparticle island

نویسندگان

  • Jinxia Xu
  • Xiangheng Xiao
  • Feng Ren
  • Wei Wu
  • Zhigao Dai
  • Guangxu Cai
  • Shaofeng Zhang
  • Juan Zhou
  • Fei Mei
  • Changzhong Jiang
چکیده

In order to overcome the low utilization ratio of solar light and high electron-hole pair recombination rate of TiO2, the triangular Ag nanoparticle island is covered on the surface of the TiO2 thin film. Enhancement of the photocatalytic activity of the Ag/TiO2 nanocomposite system is observed. The increase of electron-hole pair generation is caused by the enhanced near-field amplitudes of localized surface plasmon of the Ag nanoparticles. The efficiently suppressed recombination of electron-hole pair caused by the metal-semiconductor contact can also enhance the photocatalytic activity of the TiO2 film.

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عنوان ژورنال:

دوره 7  شماره 

صفحات  -

تاریخ انتشار 2012