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

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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, energy-dispersive 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 \(Fd\bar 3m\) 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.

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Authors and Affiliations

  1. Department of Chemistry, Osmania University, Hyderabad, 500 007, India

    Ravinder Guje, Prathapuram Shrujana, Naveen Kumar Veldurthi, Ravi Gundeboina, Nageshwar Rao Kappera & Vithal Muga

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  1. Ravinder Guje
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  2. Prathapuram Shrujana
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  3. Naveen Kumar Veldurthi
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  4. Ravi Gundeboina
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  5. Nageshwar Rao Kappera
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  6. Vithal Muga
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Correspondence to Vithal Muga.

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Guje, R., Shrujana, P., Veldurthi, N.K. et al. Synthesis, characterisation and photocatalytic activity of Ag+- and Sn2+-substituted KSbTeO6. Chem. Pap. 69, 269–278 (2015). https://doi.org/10.1515/chempap-2015-0013

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  • DOI: https://doi.org/10.1515/chempap-2015-0013

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