Figure 5

Deconvolution of C 1 s peak of rGO papers reduced by FeI2 solution with different pH (a ~ d) and GO paper (e) and relative content of Fe in each rGO paper (f).
The position of C-C, C-OH, C-O-C and C = O is 284.8 ± 0.1 eV, 285.6 ± 0.1 eV, 286.9 ± 0.1 eV and 287.9 ± 0.1 eV, respectively.