Microwave-assisted synthesis of ZnO–graphene composite for photocatalytic reduction of Cr(vi)

The results show that in the composite the graphenenanosheets are decorated densely by ZnO nanosheets, which display a good combination between graphene and ZnO nanosheets

Xinjuan Liu; Likun Pan; Tian Lv; Ting Lu; Guang Zhu; Zhuo Sun; Changqing Sun

2011

Scholarcy highlights

  • ZnO–graphene composites are successfully synthesized via microwave-assisted reaction of zinc sulfate in aqueous solution with a graphite oxide dispersion using a microwave synthesis system
  • The results show that in the composite the graphenenanosheets are decorated densely by ZnO nanosheets, which display a good combination between graphene and ZnO nanosheets
  • The ZnO–graphene composite exhibits an enhanced photocatalytic performance in the reduction of Cr(VI) with a removal rate of 98% under UV light irradiation as compared with pure ZnO due to the increased light absorption intensity and range, as well as the reduction of electron–hole pair recombination with the introduction of graphene
  • Microwave-assisted synthesis of ZnO–graphene composite for photocatalytic reduction of Cr(VI)

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