Synthesis of TiO 2 / SnO 2 core shell nanocomposite via sol-gel method

The particles of TiO 2 core/ SnO 2 shell nanocomposite were prepared by hydrolysis of SnCl 4 .5 H 2 O in the presence of titania nanoparticle after drying and calcinations treatments. TiO 2 particle were produced from titanium isopropoxide sol by hydrothermal processing. X-ray diffraction (XRD), Fourier transformed infrared (FTIR), and transmission electron microscopy (TEM) were used to characterize the TiO 2 / SnO 2 core shell nanocomposites. The obtained results from XRD show that the SnO 2 nanoparticles coated on TiO 2 yields diffraction peaks correspond to the crystalline SnO 2 phase. Also, TEM results show that the nanocomposite particles have a spherical morphology and a narrow size distribution. The thickness of SnO 2 shell on the surface of TiO 2 particles were about 8 nm. Moreover, the results obtained from EDX analysis show that the core-shell structured nanocomposites have crystalline structure.