▎ 摘　　要

NOVELTY - A nanocomposite of manganese oxide catalyst supported on graphene oxide nanosheets has nanosheets for supporting the growth of metal oxide nanoparticles. USE - Nanocomposite of manganese oxide catalyst supported on graphene oxide nanosheets for growth of metal oxide nanoparticles for oxidizing of benzyl alcohol to aldehyde (all claimed). ADVANTAGE - The nanocomposite are easily separable, redeemable, reusable, and exhibits high catalytic activity at low temperatures for selective oxidation of benzyl alcohols to carbonyl compounds without formation of any over-oxidation products. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of the nanocomposite, which involves mixing graphene oxide and manganese sulfate in distilled water to obtain mixture, adding isopropyl alcohol to the mixture at above 70 degrees C in a reactor with water condenser and adding potassium permanganate to the reactor under reflux conditions; and (2) oxidation of benzyl alcohol in presence of the nanocomposite, which involves mixing benzyl alcohol, potassium carbonate and the nanocomposite in organic solvent chosen from toluene, ethyl alcohol and xylene to obtain mixture (i), reacting the mixture (i) in atmospheric air at 35-100 degrees C, separating catalyst from the reaction mixture by filtration, separating organic layer by washing with water to remove base and organic material and evaporating organic layer under reduced pressure to obtain product.