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Position of Bands in FTIR Spectra of Curcumin, Chitosan, and Curcumin Chitosan (CuCs) Nanocomposite
| Curcumin (cm−1) | Chitosan (cm−1) | CuCs Nanocomposite (cm−1) | Assignment |
|---|---|---|---|
| 3434 | 3419 | 3500 | NH and OH stretching vibration OH stretching |
| 2890 | 2892 | 2888 | Ar =CH stretching |
| 1653 | 1657 | 1653 | C=C stretching |
| 1511 | – | 1503 | C=O strong band |
| 1420 | 1428 | – | C-O-H band |
| 1062 | 1070 | C-O-C stretching | |
| 810 | – | – | C-H stretching |
