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Optical and Quantum Electronics

, Volume 47, Issue 7, pp 1751–1763 | Cite as

Optical and structural properties of TiO\(_{\mathbf{2}}\) nanocomposite doped by Si and Cu at high temperature

  • Nasrollah Najibi Ilkhechi
  • Fallah Dousi
  • Behzad Koozegar Kaleji
  • Esmaiel Salahi
Article

Abstract

The TiO\(_{2}\) nanocomposite doped by Si and Cu were prepared via sol–gel method under process control. The effects of doping and calcination temperature on the structural and photo-catalytic properties of applied nanocomposite have been studied by X-ray diffraction (XRD), scanning electron microscope, transmission electron microscope, FTIR and UV–vis absorption spectroscope. XRD results suggest that adding dopants has a great effect on the crystallinity and particle size of TiO\(_{2}\). Titania rutile phase formation was inhibited by Si\(^{4+}\) and promoted by Cu\(^{2+}\) addition doping. The activity of the photocatalyst was evaluated by photocatalytic degradation kinetics of aqueous methyl orange under visible radiation. The results show that the photocatalytic activity of the 20 % Si doped TiO\(_{2}\) nanocomposite have a larger degradation efficiency than 5 % Cu doped TiO\(_{2}\) under visible light.

Keywords

TiO\(_{2}\) nano composite Sol–gel Photo-catalytic activity Si and Cu dopant 

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Nasrollah Najibi Ilkhechi
    • 1
  • Fallah Dousi
    • 2
  • Behzad Koozegar Kaleji
    • 1
  • Esmaiel Salahi
    • 3
  1. 1.Department of Materials Engineering, Faculty of EngineeringMalayer UniversityMalayerIran
  2. 2.Department of Physics, Faculty of ScienceMalayer UniversityMalayerIran
  3. 3.Material and Energy Research Center (MERC)KarajIran

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