Rietveld refinement and structural characterization of TiO<sub>2</sub>/CoFe<sub>2</sub>O<sub>4</sub>nanocomposites
P Preeti, Sunil Rohilla
Abstract
Abstract The nanocomposite of titanium dioxide and cobalt ferrite (TiO 2 /CoFe 2 O 4 ) is synthesized using the co-precipitation method. The structural characterization of the prepared composite has been done with complementary methods like X-Ray diffraction (XRD). X-ray diffraction data has been used to determine the formation of composite (TiO 2 /CoFe 2 O 4 ) and to estimate structural changes in terms of lattice imperfection. We have used the Rietveld method to refine the XRD data. The Rietveld refinement leads to specify the anatase phase of Titanium oxide. The crystal structure of anatase (TiO 2 ) is tetragonal with space group 141/a m d. The refinement of sample confirms the formation of two crystalline phases i.e rutile (TiO 2 ) and cobalt ferrite. Here the lattice parameters, bond length, bond angle, crystallite size, lattice strain, and dislocation density, for the obtained phases of nanocomposites has studied in detail. The Wyckoff positions and interatomic distance of the composite atoms have been calculated. Some applications of nanosized TiO 2 and CoFe 2 O 4 have also been highlighted.