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  • Chem Sci Trans., 2014, 3(1),  pp 332-340  

    DOI:10.7598/cst2014.630

    Research Article

    Visible Light Induced Photoreductive Dehalogenation Using Carbon Doped ZnS Nanocrystallite

  • ATUL V. WANKHADE, M. G. DHONDE, N. T. KHATI, SANJAY R. THAKARE and G. S. GAIKWAD
  • Department of Chemistry, Visvesvaraya National Institute of Technology (VNIT), Nagpur, India
    Department of Chemistry, Shri Mathuradas Mohota College of Science, Nagpur, India
    Department of Chemistry, Priyadarshini College of Engineering, Nagpur, India
    Department of Chemistry, Shri Shivaji Science College, Nagpur, India
    Department of Chemistry, J.L. Chaturvedi College of Engineering, Nagpur, India
  • Abstract

    A visible light activity was induced in ZnS nanocrystallites through carbon doping using environment friendly biodegradable starch as stabilizer for controlling particle size and as a source for carbon doping. Synthesized materials exhibits higher photocatalytic activity as compared to undoped bulk ZnS for the reductive dechlorination of chlorinated benzene derivatives to benzene in the presence of isopropyl alcohol as a sacrificial electron donor under visible light irradiation (λ ≥ 400 nm). The structure, morphology, chemical composition and photocatalytic activity of the nano particals have been investigated by XRD, TEM, EDAX and UV-Visible spectrophotometer. Nano size of synthesized C-doped ZnS has been confirmed by peak broadning in XRD and TEM, while visible light absorption is confirmed by UV-DRS.

    Keywords

    Wurtzite ZnS, Nanocrystallite, Visible light, Photocatalyst, Dehalogenation

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