Facile synthesis of ZnO nanorods grown on graphene sheets and its enhanced photocatalytic efficiency

摘要: BACKGROUND: Recent advancements in nanoscale materials have focused on well-designed nanocomposites that are highly oriented and organized. Three-dimensional arrays consisting of one-dimensional ZnO nanorods grown reduced graphene oxide (RGO) sheets should be an efficient photocatalyst for photocatalytic hydrogen production from glycerol solution due to the increased adsorptivity reactant, extended light absorption range, especially charge transportation separation. RESULTS: It was found calcination temperature seed layer had a significant influence morphology, surface structure, optical electronic properties ZnO/RGO nanocomposites. When 400 ∘ C, with C–O–Zn linkages can achieved. This sample exhibited highest H2 rate. CONCLUSION: The results this study show superior performance originates higher transfer rate photo-generated electrons RGO, repressed recombination photoinduced hole–electron pairs ZnO, which is closely related chemical interaction between RGO concentration Zn–O–C bonds. Moreover, morphology favors directional ZnO. © 2014 Society Chemical Industry Supporting information may online version article.