Enhanced photocatalytic properties of graphene oxide/ZnO nanohybrid by Mg dopants

C. S. Chen, X. D. Xie, S. Y. Cao, T. G. Liu, Yuen Hong Tsang, Y. Xiao, Q. C. Liu, X. F. Yang, L. Gong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)

Abstract

� 2015 The Royal Swedish Academy of Sciences. In this study, the enhancement of photocatalytic activity of a graphene oxide/ZnO (GO/ZnO) nanohybrid was achieved via introducing Mg as a co-dopant element by the co-precipitation method. The Mg-doped ZnO nanoparticles were adsorbed on GO sheets. Compared with the catalyses with GO/ZnO nanohybrids, GO/Zn1-xMgxO nanohybrids exhibited better photocatalytic activity, in which the decomposition rate of methyl orange (MO) reached 100% within 60 min. The enhancement is attributed to Mg-doping and efficient charge transfer of the photogenerated electrons in the conduction band of ZnO to graphene.
Original languageEnglish
Article number025806
JournalPhysica Scripta
Volume90
Issue number2
DOIs
Publication statusPublished - 1 Feb 2015

Keywords

  • graphene oxide
  • Mg-doped ZnO
  • nanohybrids
  • photocatalytic property

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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