Nanocomposites of graphene quantum dots and Au nanoparticles (GQDs/Au) are immobilized on the Fe3O4 nanoparticles, forming GQDs/Au/Fe3O4 ternary composites. The as-prepared ternary composites exhibit superparamagnetic property rendering them easy to be isolated from the reaction mixture. More importantly, they show superb catalytic activity for solvent-free oxidation of VA and other alcohols that contain an aromatic benzyl group, to the corresponding aldehydes exclusively with air as oxidant. The great stability and selectivity of the GQDs/Au/Fe3O4 indicate that they might be applicable catalysts for the oxidation of aromatic alcohols.
Bibliographical noteFunding Information:
This research was carried out with financial support from the national “ 973 Program ” of China (Nos. 2014CB260411 and 2015CB931801 ).
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- Au/GQDs/FeO composites
- Magnetic materials
- Solvent-free reaction