| C1s | O1s | Fe2p | |||||||
| Samples | Group | Binding Energy (eV) | Peak Intensity (a.u.) | Group | Binding Energy (eV) | Peak Intensity (a.u.) | Group | Binding Energy (eV) | Peak Intensity (a.u.) |
| C=C | 284.1 | 104,164 | C-O | 530.6 | 10,588 | ||||
| TEGO | C-C | 284.8 | 7664 | C=O | 532.5 | 12,820 | |||
| C-O | 286.3 | 7339 | HO-C=O | 535.6 | 11,334 | ||||
| O-C=O | 288.9 | 7858 | |||||||
| C=C, C-Fe* | 284.3 | 510,259 | C-O, Fe-O | 529.8 | 38,318 | Fe2p3/2 | 710.6 | 32,860 | |
| C-C | 285.2 | 76,341 | C=O | 532 | 45,209 | Satellite | 719.5 | 31,530 | |
| CNF-TEGO | C-O-C | 287.2 | 50,557 | Fe2p1/2 | 724.2 | 32,214 | |||
| O-C=O | 290.7 | 45,214 | Satellite | 727.6 | 31,657 | ||||
| C-C | 284.7 | 51,245 | C-O | 531.8 | 54,857 | ||||
| GO | C-O | 286.9 | 66,274 | C=O | 532.7 | 80,534 | |||
| O-C=O | 288.7 | 19,284 | HO-C=O | 533.3 | 82,456 | ||||
| C=C, C-Fe* | 284.3 | 278,137 | C-O, Fe-O | 529.9 | 27,211 | Fe2p3/2 | 710.7 | 37,089 | |
| C-C | 285.4 | 46,628 | C=O | 532.1 | 31,673 | Satellite | 720.0 | 36,416 | |
| CNF-GO | C-O-C | 287.1 | 37,166 | HO-C=O | 533.4 | 27,484 | Fe2p1/2 | 724.5 | 36,759 |
| O-C=O | 290.5 | 31,652 | Satellite | 727.7 | 36,284 | ||||