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Metal oxide semiconductors as visible light photocatalysts


Mn-, Co-, and Mn-Co doped TiO2 ternary and quaternary semiconducting powder materials prepared by using the co-precipitation method and fully characterized by using x-ray diffraction (XRD), scanning electron microscopy-energy dispersive spectroscopy (SEM — EDS) and UV- visible diffuse reflection spectroscopy were utilized for the photocatalytic degradation of methylene blue under visible light irradiation. These materials show a red shift and absorption in the visible region depending on the dopant type and concentration. These materials have proven to be effective as visible light photocatalysts.

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Correspondence to George Kiriakidis or Vassilios Binas.

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Kiriakidis, G., Binas, V. Metal oxide semiconductors as visible light photocatalysts. Journal of the Korean Physical Society 65, 297–302 (2014).

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  • Visible light photocatalysts
  • Titanium dioxide
  • Manganese
  • Cobalt
  • Doping