Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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The Synergistic Effect of Nitrogen and Ni2O3 over TiO2 Photocatalyst in the Degradation of 2,4,6-Trichlorophenol Under Visible Light

  • Hu, Shaozheng (Institute of Eco-environmental Sciences, Liaoning Shihua University) ;
  • Li, Fayun (Institute of Eco-environmental Sciences, Liaoning Shihua University) ;
  • Fan, Zhiping (Institute of Eco-environmental Sciences, Liaoning Shihua University)
  • Received : 2012.08.03
  • Accepted : 2012.09.17
  • Published : 2012.12.20
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Abstract

The composite photocatalyst, N-$TiO_2$ loaded with $Ni_2O_3$, was prepared by $N_2$ plasma treatment. X-ray diffraction, X-ray fluorescence, $N_2$ adsorption, UV-vis spectroscopy, photoluminescence, and X-ray photoelectron spectroscopy were used to characterize the prepared $TiO_2$ samples. The results indicated that the band gap energy was decreased obviously by nitrogen doping, whereas loading of $Ni_2O_3$ did not influence the band gap and visible light absorption. The photocatalytic activities were tested in the degradation of 2,4,6-trichlorophenol (TCP) under visible light. The photocatalytic activity and stability of composite photocatalyst were much higher than that of catalyst modified with nitrogen or $Ni_2O_3$ alone. The synergistic effect of doping nitrogen and $Ni_2O_3$ over $TiO_2$ was investigated.

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References

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