One-step electrochemical synthesis of a graphene-ZnO hybrid for improved photocatalytic activity

Ang Wei, Li Xiong, Li Sun, Yanjun Liu, Weiwei Li, Wenyong Lai, Xiangmei Liu, Lianhui Wang, Wei Huang, Xiaochen Dong

Research output: Contribution to journalArticlepeer-review

76 Scopus citations

Abstract

A graphene-ZnO (G-ZnO) hybrid was synthesized by one-step electrochemical deposition. During the formation of ZnO nanostructure by cathodic electrochemical deposition, the graphene oxide was electrochemically reduced to graphene simultaneously. Scanning electron microscope images, X-ray photoelectron spectroscopy, X-ray diffraction, Raman spectra, and UV-vis absorption spectra indicate the resulting G-ZnO hybrid presents a special structure and wide UV-vis absorption spectra. More importantly, it exhibits an exceptionally higher photocatalytic activity for the degradation of dye methylene blue than that of pure ZnO nanostructure under both ultraviolet and sunlight irradiation.

Original languageEnglish
Pages (from-to)2855-2860
Number of pages6
JournalMaterials Research Bulletin
Volume48
Issue number8
DOIs
StatePublished - Aug 2013

Keywords

  • A. Nanostructures
  • B. Chemical synthesis
  • D. Catalytic properties
  • D. Microstructure

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