Fig. 7From: Green Approach for the Effective Reduction of Graphene Oxide Using Salvadora persica L. Root (Miswak) ExtractXPS spectra of graphene oxide (GRO): C1s (a) and O1s peak (b) and highly reduced graphene oxide with root extract (SP-HRG): C1s (c) and O1s peak (d)Back to article page