Research Article
An Experimental Study of Photocatalytic Degradation of Congo Red Using Polymer Nanocomposite Films
Table 1
Spectral data of chitosan, PVA, and the prepared nanocomposite films.
| Chitosan | Chit/C | Interpretation | PVA | PVA/C | Interpretation | Position (cmā1) | Position (cmā1) |
| 3448 | 3425 | O-H stretching overlapped with N-H stretching | 3404 | 3400 | O-H stretching | 2925 | 2924 | Aliphatic C-H stretching | 2926 | 2935 | CH2 asymmetric and symmetric stretching | 2369 | 2370 | 2369 | 2370 | 1655 | 1546 | In plane N-H bending | 1433 | 1437 | C-H bending | 1405 | 1406 | C-O stretching vibration of primary alcoholic group | 1095 | 1092 | C-O stretching | 1077 | 1069 | Stretching vibration of hydroxy group | 670 | 669 | C-H outside the plan bond |
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