Sol–gel mediated microwave synthesis of pure, La and Zr doped SnS2 nanoflowers an efficient photocatalyst for the degradation of methylene blue

  • V. Govindan
  • L. Kashinath
  • D. Joseph Daniel
  • K. SankaranarayananEmail author


La and Zr intercalated SnS2 nanostructures have been synthesised using facile sol–gel mediated microwave method. Photocatalytic activity of methylene blue dye was investigated using the synthesized nanosturctures and superior photocatalytic activity was witnessed for the La and Zr intercalated SnS2 than the pure SnS2 nanoflower. It is attributed to the enhanced surface charge carriers and fast electron transport inside the lattice of SnS2. Enlargement on surface active sites in turn increases surface absorption effect due to La and Zr which acts as tentacles to control the recombination process and promotes the higher photoredox reaction. The synthesized nanomaterials were characterized using PXRD, Raman, PL, UV–Vis spectroscopy, FE-SEM and XPS. It is noted from the structural analysis that the decrease in cell volume with increase of doping concentration contributes to Moss-Burstein effect. The increment of band gap and quenching in the photoluminescence effect supported the absorptivity of photoenergies which served as photosensitizer.



Author Mr. V. Govindan is gratefuly to the Deparment of Science and Technology, New Delhi for providing financial assistance through DST-INSPIRE fellowship [IF 130833]. One of the author D. J. Daniel gratefuly acknowledged the National Research Foundation of Korea (NRF) grant (No. 2018R1A6A1A06024970) for the financial support.


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • V. Govindan
    • 1
  • L. Kashinath
    • 2
  • D. Joseph Daniel
    • 3
  • K. Sankaranarayanan
    • 1
    Email author
  1. 1.Functional Materials Lab, Department of PhysicsAlagappa UniversityKaraikudiIndia
  2. 2.Center for Materials Science and TechnologyUniversity of MysoreMysoreIndia
  3. 3.Department of PhysicsKyungpook National UniversityDaeguSouth Korea

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