Chinese Journal of Catalysis ›› 2014, Vol. 35 ›› Issue (11): 1825-1832.DOI: 10.1016/S1872-2067(14)60158-3

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Rhodamine B degradation and reactive oxygen species generation by a ZnSe-graphene/TiO2 sonocatalyst

Lei Zhu, Sun-Bok Jo, Shu Ye, Kefayat Ullah, Won-Chun Oh   

  1. Department of Advanced Materials Science & Engineering, Hanseo University, Chungnam 356-706, Korea
  • Received:2014-04-19 Revised:2014-05-20 Online:2014-11-06 Published:2014-11-06

Abstract:

Nanostructured ZnSe-graphene/TiO2 was synthesized by a hydrothermal-assisted approach. ZnSe-graphene/TiO2 exhibited favorable adsorption of rhodamine B, a wide wavelength absorption range, and efficient charge separation. Reactive oxygen species were generated by the oxidation of 1,5-diphenyl carbazide to 1,5-diphenyl carbazone. The sonocatalytic reaction mechanism was proposed. These findings potentially broaden the applications of sonocatalytic technologies.

Key words: Zinc selenide, Graphene-titanium, Hydrothermal reaction, Reactive oxygen species, Sonocatalysis