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Frontiers of Materials Science

, Volume 10, Issue 4, pp 385–393 | Cite as

Excellent photocatalytic performance under visible-light irradiation of ZnS/rGO nanocomposites synthesized by a green method

  • Hassan Rayat Azimi
  • Mahmood Ghoranneviss
  • Seyed Mohammad Elahi
  • Mohammad Reza Mahmoudian
  • Farid Jamali-Sheini
  • Ramin Yousefi
Research Article

Abstract

ZnS/graphene nanocomposites with different graphene concentrations (5, 10 and 15 wt.%) were synthesized using L-cysteine as surfactant and graphene oxide (GO) powders as graphene source. Excellent performance for nanocomposites to remove methylene blue (MB) dye and hexavalent chromium (Cr(VI)) under visible-light illumination was revealed. TEM images showed that ZnS NPs were decorated on GO sheets and the GO caused a significant decrease in the ZnS diameter size. XRD patterns, XPS and FTIR spectroscopy results indicated that GO sheets changed into reduced graphene oxide (rGO) during the synthesis process. Photocurrent measurements under a visiblelight source indicated a good chemical reaction between ZnS NPs and rGO sheets.

Keywords

ZnS/rGO nanocomposites graphene photocatalytic performance water treatment green nanotechnology 

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Copyright information

© Higher Education Press and Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Hassan Rayat Azimi
    • 1
  • Mahmood Ghoranneviss
    • 1
  • Seyed Mohammad Elahi
    • 1
  • Mohammad Reza Mahmoudian
    • 2
  • Farid Jamali-Sheini
    • 3
  • Ramin Yousefi
    • 4
  1. 1.Plasma Physics Research Center, Science and Research BranchIslamic Azad UniversityTehranIran
  2. 2.Department of Chemistry, Shahid SherafatUniversity of FarhangianTehranIran
  3. 3.Advanced Surface Engineering and Nano Materials Research Center, Department of Physics, Ahvaz BranchIslamic Azad UniversityAhvazIran
  4. 4.Department of Physics, Masjed-Soleiman BranchIslamic Azad UniversityMasjed-SoleimanIran

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