Fig. 2From: Green Approach for the Effective Reduction of Graphene Oxide Using Salvadora persica L. Root (Miswak) ExtractUV-vis absorption spectra of pure root extract (SP, blue line), SP-HRG-1 prepared with 10 mL root extract (red line), SP-HRG-2 prepared with 20 mL root extract (green line), and SP-HRG-3 prepared with 50 mL root extract (purple line)Back to article page