Figure 2

Characterization of Sr-BSA-rGO nanosheets. (a) The UV–Vis spectrums of BSA, GO and BSA-rGO dispersed in deionized water (concentration: 0.1 mg/ml). (b) Images of the synthesized GO, BSA-rGO and Sr-BSA-rGO. (c) and (d) XRD and FTIR profiles of GO, BSA-rGO and Sr-BSA-rGO nanosheets respectively.