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Synthesis, characterisation and photocatalytic activity of Ag+- and Sn2+-substituted KSbTeO6

  • Ravinder Guje , Prathapuram Shrujana , Naveen Kumar Veldurthi , Ravi Gundeboina , Nageshwar Rao Kappera and Vithal Muga EMAIL logo
Published/Copyright: December 12, 2014
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Chemical Papers
From the journal Chemical Papers Volume 69 Issue 2

Abstract

Ag+- and Sn2+-substituted KSbTeO6 were prepared by a facile ion-exchange method at ambient temperature. All the samples were characterised by scanning electron microscopy, energydispersive spectra, thermogravimetric analysis, powder X-ray diffraction, Raman spectra and UV-VIS diffuse reflectance spectra. Both Sn2+- and Ag+-substituted KSbTeO6 were crystallised in a cubic lattice with the Fd3̅m space group. The band-gap energy of all the samples was deduced from their UV-VIS diffuse reflectance spectral profiles. The visible light-induced photocatalytic oxidation of the methylene blue (MB) dye was examined in the presence of all the as-prepared materials. The Ag+- and Sn2+-substituted KSbTeO6 exhibited a higher photocatalytic activity than the parent KSbTeO6 in degradation of the MB dye under visible light irradiation.

Keywords: defect pyrochlore; X-ray diffraction; Raman spectroscopy; photodegradation

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Received: 2014-1-18
Revised: 2014-5-14
Accepted: 2014-6-14
Published Online: 2014-12-12
Published in Print: 2015-2-1

© 2015 Institute of Chemistry, Slovak Academy of Sciences

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https://doi.org/10.1515/chempap-2015-0013
Keywords for this article
defect pyrochlore; X-ray diffraction; Raman spectroscopy; photodegradation

Articles in the same Issue

  1. Selection and design of ionic liquids as solvents in extractive distillation and extraction processes
  2. Analytical procedure for steroid profiling valid for Athlete Biological Passport
  3. Fabrication of paper-based analytical device by silanisation of filter cellulose using alkyltrimethoxysilane coupled with UV radiation
  4. Synthesis, characterisation and photocatalytic activity of Ag+- and Sn2+-substituted KSbTeO6
  5. Dysprosium pertraction through facilitated supported liquid membrane using D2EHPA as carrier
  6. Volatile compounds composition and antioxidant activity of bee pollen collected in Lithuania
  7. Self-penetrating and interpenetrating 3D metal–organic frameworks constructed from 4-(4-carboxyphenoxy)-phthalic acid and N-donor auxiliary ligands
  8. Preparation of ceramic γ-Al2O3–TiO2 nanofiltration membranes for desalination
  9. Promoting effect of group VI metals on Ni/MgO for catalytic growth of carbon nanotubes by ethylene chemical vapour deposition
  10. Microwave-assisted solvent-free synthesis and luminescence properties of 2-substituted-4,5-di(2-furyl)-1H-imidazoles
  11. Synthesis of potential inhibitors of glycosyltransferases representing UDP-GlcNAc
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