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Vol. 25 No. 1 (2013): Vol 25 Issue 1

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Structural Properties, Lattice Strain and Transformation of Anatase-Type TiO2 Nanocrystals to Rutile in TiO2-SiO2 Composite

https://doi.org/10.14233/ajchem.2013.13087
Mehran Riazian
Department of Chemistry, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
Shima Daliri Rad
Department of Chemistry, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
Naser Montazeri
Department of Chemistry, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
Khalil Pourshamsian
Department of Chemistry, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran

Corresponding Author(s) : Khalil Pourshamsian

kh_pourshamsian@toniau.ac.ir

Asian Journal of Chemistry, Vol. 25 No. 1 (2013): Vol 25 Issue 1

Abstract

We report the synthesis of TiO2 nanoparticles in anatase and rutile structures in SiO2-TiO2 composite. The SiO2-TiO2 nanostructure was synthesized based on the sol-gel method. The nanoparticles were characterized by X-ray fluorescents, X-ray diffraction, field emission scanning electron microscopy and Fourier transmission infrared absorption (FTIR) techniques. Phase formation was achieved by hydrothermal treatment at elevated temperatures. The anatase nanoparticles were obtained under 300 ºC calcined temperature, while rutile phase were obtained in higher than 300 ºC calcined temperature. The mass fraction of anatase and rutile phases was calculated. It can be fined that as the calcined temperature increases the per cent of rutile phase content grows, as well as when the content of TiO2 in SiO2-TiO2 composite increases, the per cent of rutile phase content grows. The effects of chemical compositions and calcinations temperature on the surface topography and the crystallization of phases were studied.

Keywords

Nanostructure Phase characterization SiO2-TiO2 Sol-Gel method
Riazian, M., Daliri Rad, S., Montazeri, N., & Pourshamsian, K. (2012). Structural Properties, Lattice Strain and Transformation of Anatase-Type TiO2 Nanocrystals to Rutile in TiO2-SiO2 Composite. Asian Journal of Chemistry, 25(1), 356–364. https://doi.org/10.14233/ajchem.2013.13087
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