Figure 2.
Digital picture and Raman and XPS spectra. (a) Digital picture of GO and RGO, (b) Raman spectra of GO and RGO, and (c) C1s XPS spectra of GO before and (d) after reduction.
Digital picture and Raman and XPS spectra. (a) Digital picture of GO and RGO, (b) Raman spectra of GO and RGO, and (c) C1s XPS spectra of GO before and (d) after reduction.