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

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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.

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Authors and Affiliations

  1. Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran

    Hassan Rayat Azimi, Mahmood Ghoranneviss & Seyed Mohammad Elahi

  2. Department of Chemistry, Shahid Sherafat, University of Farhangian, 15916, Tehran, Iran

    Mohammad Reza Mahmoudian

  3. Advanced Surface Engineering and Nano Materials Research Center, Department of Physics, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

    Farid Jamali-Sheini

  4. Department of Physics, Masjed-Soleiman Branch, Islamic Azad University, Masjed-Soleiman, Iran

    Ramin Yousefi

Authors
  1. Hassan Rayat Azimi
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  2. Mahmood Ghoranneviss
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  3. Seyed Mohammad Elahi
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  4. Mohammad Reza Mahmoudian
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  5. Farid Jamali-Sheini
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  6. Ramin Yousefi
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Corresponding author

Correspondence to Ramin Yousefi.

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Azimi, H.R., Ghoranneviss, M., Elahi, S.M. et al. Excellent photocatalytic performance under visible-light irradiation of ZnS/rGO nanocomposites synthesized by a green method. Front. Mater. Sci. 10, 385–393 (2016). https://doi.org/10.1007/s11706-016-0361-9

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  • DOI: https://doi.org/10.1007/s11706-016-0361-9

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