A series of ZnO-based heterogeneous photocatalysts, including Ag-ZnO, ZnO- and Ag-ZnO-reduced graphene
oxide (rGO) nanocomposites, was successfully synthesized by a one-pot solvothermal route. The assynthesized
products were systematically characterized using combined techniques of X-ray diffraction, X-ray
photoelectron spectrometry, electron microscopy, and energy dispersive spectrometry