Facile one-step synthesis and photoluminescence properties of Ag-ZnO core-shell structure

Ag-ZnO core-shell structures were gained via one-step solvothermal process. The products were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman spectroscopy, photoluminescence (PL) and UV-vis spectroscopy, respectively. It was shown that the properties were greatly changed compared to pure ZnO from the PL and Raman spectra, which indicated the strong interfacial interaction between ZnO and Ag. The work provides a feasible method to synthesize Ag-ZnO core-shell structure photocatalyst, which is promising in the further practical application of ZnO-based photocatalytic materials. (C) 2014 Elsevier B. V. All rights reserved.