Figure 5: RBS analysis for detecting the elemental composition of GO, CS and GO-CS.

Carbon region from channel 400 to 460 (a), nitrogen region from channel 500 to 540 (b), and oxygen region from channel 600 to 750 (c).
Carbon region from channel 400 to 460 (a), nitrogen region from channel 500 to 540 (b), and oxygen region from channel 600 to 750 (c).