Table 1 Assignment of functional groups FTIR bands in lignocellulosic biomass samples
Name of characteristic group | Wavenumber (cm-1) |
|---|---|
OH | 3426 |
Aliphatic C-H stretch | 2967, 2900 |
Aromatic ring stretch of lignin | 1628 |
Aromatic skeletal vibration plus C = O stretch | 1596 |
CH2-wagging vibrations in cellulose and hemicellulose | 1318 |
Anti-symmetric bridge stretching of C–O–C groups in cellulose and hemicellulose | 1160 |
C-H (Crystalline cellulose) | 1430 |
C - O stretch vibration of Glucose | 1033 |