Synthesis and Properties of TiO2/ZnO Core/Shell Nanomaterials
Core/shell structured TiO2/ZnO was synthesized in a basic aqueous solution through a simple hydrolyzing method. The powder X-ray diffraction (XRD) and transmission electron microscopy of the initial TiO2/ZnO powder showed diffraction peaks corresponding to the ZnO and TiO2 phase. The structure and thickness of ZnO shell (about 2.5 nm) coated TiO2 surface as thin layers or nanoclusters, depends upon the reactant concentration and the reaction time. The characteristics of the optical absorption were described by UV-visible absorption spectroscopy.
Chang Kyu Rhee
X. L. Zhang et al., "Synthesis and Properties of TiO2/ZnO Core/Shell Nanomaterials", Solid State Phenomena, Vol. 119, pp. 239-242, 2007