10.1007/s40097-014-0107-0

Synthesis and characterization of ZnS-Ag nanoballs and its application in photocatalytic dye degradation under visible light

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  • G. K. Gaurav Kumar1,
  • P. Sivakumar2,
  • S. Renganathan*1,
  1. Department of Chemical Engineering, Anna University, Chennai, Tamil Nadu, 600 025, IN
  2. Department of Chemical Engineering, Anna University, Chennai, Tamil Nadu, 600 025, IN Department of Petroleum Engineering, JCT College of Engineering and Technology, Coimbatore, 641 105, IN
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Published in Issue 05-06-2014

How to Cite

Gaurav Kumar, G. K., Sivakumar, P., & Renganathan, S. (2014). Synthesis and characterization of ZnS-Ag nanoballs and its application in photocatalytic dye degradation under visible light. Journal of Nanostructure in Chemistry, 4(3 (September 2014). https://doi.org/10.1007/s40097-014-0107-0
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Abstract

Abstract ZnS-Ag nanoballs were synthesized using chemical precipitation method at room temperature aided with the capping agent cetyl trimethyl ammonium bromide. The synthesized nanoballs were characterized by UV–Visible spectrophotometer, diffuse reflectance spectroscopy, X-ray diffraction, high resolution scanning electron microscopy, and energy dispersive X-ray. Photocatalytic activity of ZnS and ZnS-Ag nanoballs was evaluated by irradiating the solution of organic dye methylene blue (MB) in presence of visible light. The different parameters affecting degradation, such as dye concentration, catalyst loading and pH, were studied. Reusability of catalyst was evaluated up to three cycles. Kinetics study was done for the degradation of MB by ZnS and ZnS-Ag nanoballs. It was found that ZnS-Ag nanoballs show higher degradation efficiency than ZnS.

Keywords

  • ZnS-Ag nanoballs,
  • Characterization,
  • Visible light,
  • Photocatalytic degradation,
  • Methylene blue,
  • Kinetics
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