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Photocatalytic degradation of methylene blue on TiO2@SiO2 core/shell nanoparticles: synthesis and characterization

Abstract

TiO2@SiO2 core/shell nanoparticles have been synthesized by sol–gel method from tetraethylorthotitanate and tetraethylorthosilicate. The synthesized products were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectrum, electron dispersive X-ray spectroscopy and ultraviolet–visible. The results revealed that compared to SiO2 and TiO2, TiO2@SiO2 core/shell nanoparticles display smaller crystal size and greater band gap energy. The photocatalytic activity of the synthesized products has been compared in the photodegradation activity of methylene blue.

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Acknowledgments

The authors are grateful to University of Kashan for supporting this work by Grant No. (159271/375).

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Correspondence to Mehdi Bazarganipour or Masoud Salavati-Niasari.

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Gholami, T., Bazarganipour, M., Salavati-Niasari, M. et al. Photocatalytic degradation of methylene blue on TiO2@SiO2 core/shell nanoparticles: synthesis and characterization. J Mater Sci: Mater Electron 26, 6170–6177 (2015). https://doi.org/10.1007/s10854-015-3198-6

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  • DOI: https://doi.org/10.1007/s10854-015-3198-6

Keywords

  • TiO2
  • Methyl Blue
  • Photocatalytic Activity
  • Methylene Blue
  • TiO2 Nanoparticles