Facile synthesis of multifunctional graphene oxide/AgNPs-Fe3O4 nanocomposite: A highly integrated catalysts

A functional GO/AgNPs nanocomposite was obtained by in situ reduction of positively charged AgNO3 precursors which were adsorbed on the negatively charged surface of GO through electrostatic attraction. GO/AgFe3O4 magnetic nanoparticles (GAMNs) were generated via an amidation reaction in the presence of 1-ethyl-3-(3-dimethyaminopropyl) carbodiimide and N-hydroxysuccinnimide for the first time. The catalysis property of the nanocomposite was studied by degrade 4-nitrophenol. The characterized results proved that AgNPs and Fe3O4 have been successfully decorated on GO nanosheets. The GAMNs possess high catalytic capacity and good reusability, and exhibit great potential in environmental pollutant degradation.

► The nanocomposite graphene oxide/AgNPsFe3O4 is simple to be synthesized.
► GO is an outstanding support which can improve the sensitivity of catalysis.
► GAMN perfectly combined the magnetic property and catalytic activity together.
► The composite possess enhanced catalytic capacity and good reusability.
► They exhibit great potential in environmental pollutant degradation.