Table 4 FTIR analysis of Chitosan and Chitosan/EPS composite functional groups after MB biosorption.
Wave numbers (Cm− 1) | Assignment | |
|---|---|---|
Chitosan | chitosan/EPS composite | |
3444.03 | 3443.04 | Stretching and shifting of OH and N-H bands |
2920.50 | 2919.08 | C-H stretching |
- | 2851.30 | C-H stretching |
1635.89 | 1644.02 | C = O stretching vibration |
1418.62 | 1423.78 | Shifting of C = O group |
1379.26 | 1382.84 | C-N stretching |
1321.47 | 1321.77 | |
- | 1253.64 | |
1157.12 | 1155.16 | |
- | 1077.03 | |
- | 1031.70 | |
1080.35 | 896.96 | |
