Since the last decades, graphene nanosheets had been prepared
using chemical exfoliation (Hummer’s method) and mechanical
exfoliation methods [6] with starting materials as graphite/
graphene oxide (GO) [4,5]. There are two important methods to
reduce GO: 1. Chemical reduction using chemical reagent [6,7] and
2. Thermal reduction of GO to prepare graphene nanosheets (TGNS) [8]