Document Type : Full research article
Authors
1 Department of Chemistry, Payame Noor University, PO Box: 19395-3697, Tehran, Iran
2 Faculty of Basic Science, Shahid Madani University, Azarbaijan, Iran
Abstract
Silver nanoparticles (Ag NPs)-reduced graphene oxide was prepared through the in situ nucleation of Ag NPs on reduced, modified GO (rMGO). Glycine was used as a green reducing as well as modifier agent for GO to obtain rMGO. Nucleation of Ag NPs on rMGO was carried out at 80 ◦C at aqueous media. UV-Vis, FT-IR, and XRD techniques confirmed the reduction, modification, and synthesis of Ag NPs. Meanwhile, the morphology of rMGO and rMGO-Ag nanocomposite was investigated with SEM and TEM images. The synthesized nanocomposite showed excellent catalytic behavior for the reduction of 4-nitrophenol (4-NP) by NaBH4. The electrocatalytic behavior of Ag NPs on rMGO for electroreduction of H2O2 was investigated by cyclic voltammetry (CV). In the optimum condition, H2O2 was determined with a detection limit of 9.4 µM and sensitivity of 0.52 µAµM-1. In addition, with the investigation of MIC data of nanocomposite, it was distinguished that this compound has excellent antibacterial activity.
Keywords
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