Clove extract mediated facile green reduction of graphene oxide, its dye elimination and antioxidant properties

The study reports a facile green method for the effective reduction of graphene oxide (GO) using Cloves (Syzygium aromaticum) extract by a reflux method at 100 degrees C for 30 min. Formation of a few layered reduced graphene oxide (rGO) was confirmed by XRD, TEM and UV-visible studies. Carcinogenic dye degradation and antioxidant properties of the rGO were evaluated. Methylene blue (MB) and Malachite green (MG) dyes were found to be eliminated completely within 20 min in dark condition in the presence of 20 mg rGO. The prepared rGO was found to have IC50 value of 1337 mu g/ml towards quenching of DPPH free radicals. The investigation describes an environment friendly and cost effective method for the green reduction of GO to attain multifunctional rGO. (C) 2014 Elsevier B.V. All rights reserved.