TABLE 2.
Values of the atomic ratio with component C-C (AR) and binding energy (BE) obtained from XPS analyses of pristine chitosan and chitosan composite films.
| Chemical species | CS | CS/B | CS/1G/1C | CS/B/1G/1C | ||||
|---|---|---|---|---|---|---|---|---|
| AR | BE (eV) | AR | BE (eV) | AR | BE (eV) | AR | BE (eV) | |
| C 1s (C-C) | 1.0 | 284.6 | 1.0 | 284.6 | 1.0 | 284.6 | 1.0 | 284.6 |
| C 1s (C-O) | 0.51 | 286.2 | 0.27 | 286.3 | 0.75 | 286.2 | 0.47 | 286.1 |
| C 1s (-C=O) | 0.13 | 287.7 | 0.08 | 287.7 | 0.19 | 287.8 | 0.09 | 287.8 |
| C 1s (N-C=O) | 0.05 | 288.6 | 0.05 | 288.7 | 0.07 | 288.6 | 0.05 | 288.6 |
| N 1s (C-NH2) | 0.10 | 399.2 | 0.04 | 399.1 | 0.15 | 399.1 | 0.07 | 399.2 |
| O 1s (OH, C-O) | 0.27 | 531.9 | 0.22 | 531.9 | 0.63 | 532.3 | 0.31 | 532.3 |
| B 1s (B+3) | - | - | 0.014 | 192.1 | - | - | 0.021 | 192.1 |