Ecofriendly Approach for the Selective Aerobic Oxidation of Alcohols Catalyzed by Cellulose-Copper Oxide Nanoparticles in Water
摘要
Cellulose-copper oxide nanoparticles (Cell–CuO nanocatalyst) were synthesized via a co-precipitation method and employed as an efficient catalyst for the aerobic oxidation of alcohols in water. The Cell–CuO nanocatalyst was characterized using FE-SEM, EDS, XRD, TGA/DSC, BET, ICP-OES and FT-IR analyses. The results revealed that the catalyst efficiently promotes the selective aerobic oxidation of a wide range of alcohols, including benzylic and aliphatic substrates, using molecular oxygen as a green oxidant in aqueous media. Furthermore, the catalyst can be readily recovered and reused for at least six consecutive cycles without a significant loss of catalytic activity.