Synthesis, characterization and catalytic application of Au NPs-reduced graphene oxide composites material: an eco-friendly approach

摘要

In this paper, we have reported the synthesis of Au NPs-reduced graphene oxide (rGO) composites under microwave irradiation using ascorbic acid as eco-friendly reducing agent. The formation of Au NPs-rGO composites was confirmed by UV/Visible spectroscopy, DRIFT spectroscopy, TGA, XRD analysis, SAXS and HRTEM. HRTEM analysis results show that the particle size of the Au NPs formed on rGO nanosheets were in the range of 2-20 nm which is also supported by SAXS analysis results. The synthesized Au NPs-rGO composites were successfully utilized for the aerobic oxidation of benzyl alcohols to their corresponding aldehydes.