Table 2.
List of identified FTIR bands, absorption wavenumbers, and assignments.
| Formulation | Absorption (cm−1) |
Chemical Groups |
Compound Class |
|---|---|---|---|
| HA-QtN#AgNPs | 3008.41 | weak O-H stretching | alcohol |
| 2926. 48 | C-H stretching | alkane | |
| 2855.10 | strong C-H stretching | amine salt | |
| 1460.81 | C-H bending | alkane | |
| PEG-FA | 3439.42 | N-H stretching | primary amine |
| 2922.59 | C-H stretching | alkane | |
| 2094.32, 1735.65 | C=O stretching | aldehyde | |
| 1642.09 | C=N stretching | imine/oxime | |
| 1351.22 | strong S=O stretching | sulfonamide | |
| 1298.22, 1105.01 | strong C-O stretching | ester | |
| 948.81, 842.74 | C=C bending | ester | |
| PF/HA-QtN#AgNPs | 3446.17 | O-H stretching | alcohol |
| 1637.27 | C=C stretching | alkene | |
| 1462.74 | C-H bending | alkene | |
| 1202.07 | Strong C-O stretching | alkyl aryl ether |