▎ 摘　　要

Biomass-derived graphene oxide-supported metal catalysts (Ru@S-GO, Pd@ S-GO, and Pd/Ru@ S-GO) were produced in a tube furnace with a metal loading of 1 weight percent. All the synthesised nano catalysts were well characterised by XRD, FESEM-EDS, ICP-OES, XPS and FTIR, and applied for the oxidation of 5-hydroxymethylfurfural (5-HMF) to 2,5-furan dicarboxylic acid (FDCA). Hydrogen peroxide was utilized as the liquid oxidant due to its reduced mass transfer resistance. 5-HMF used in this study was also obtained from biomass. All the operational parameters, such as temperature of the reaction, amount of oxidant, base concentration, and catalyst loading were optimized using Response surface methodology (RSM) based on central composite design (CCD). Ru@S-GO was found to have greater activity and selectivity towards FDCA under benign reaction conditions, and complete conversion of 5-HMF to 2,5-FDCA was accomplished (98.8% yield) over 5 hours of reaction time in an aqueous medium with a lower catalyst loading and reduced metal content.