Solid state synthesis and structural characterization of zinc titanates

Abstract Zinc titanate composite materials were synthesized via solid state sintering process using high-purity metal oxide powders (purity ∼99.99%). The titanium incorporation into ZnO matrix was investigated by X-ray diffraction which revealed the coexistence of spinel Zn 2 TiO 4 and hexagonal ZnTiO 3 with the ZnO wurtzite structures. No reflection peaks of rutile TiO 2 phase were detected. The IR spectroscopy and Raman scattering spectroscopy were used to characterize the structural and chemical properties of the ZnO/TiO 2 composites. The IR bands and vibrational modes of all crystalline phases were detected. The effect of TiO 2 doping rates (x = 3, 5 and 7 wt%) on bands shifting, Raman intensity and structural quality was discussed.