Sample |
IR band n (cm-1) |
Band Assignment |
Reference |
SCBR |
3421.726 |
O-H stretching vibration in alcohol, phenol and adsorbed H2O in cellulosic materials |
[12] |
2922.714 |
asymmetric and symmetric vibrations of methylene group |
[17] |
1630.428 |
C=O stretching vibration in quinones |
[18] |
1726.53 |
esters of acetic, carboxyl groups, p-coumeric, ferulic and uronic acids that are the main constituents of hemi-cellulose |
[19] |
2128.153 |
C=C stretching vibration |
[20] |
1513 |
lignin esters that is stable band in all lignin structure |
[21] |
1252.11 |
C-O stretching vibration of aryl group in lignin |
[22] |
1380.84 |
in plane bending vibration of (C-H) in methyl group |
[17] |
1048 |
C-O contribution in glycosidic linkage |
[23] |
604-666 |
plane deformation vibration of C-H groups located at the edge of aromatic planes |
[24] |
SCBC |
3424.137 |
O-H stretching vibration in alchol, phenol and adsorbed H2O in cellulosic materials |
[12] |
2919.822 |
asymmetric and symmetric vibrations of methylene group |
[17] |
1559.713 |
C=O stretching vibration |
[25] |
1386.144 |
in plane bending vibration of (C-H) in methyl group |
[17] |
1106.504 |
C-O stretching in phenols, alcohols, acids, ethers and esters. |
[26] |
SCBACS |
3427.994 |
O-H stretching vibration in alcohol, phenol and adsorbed H2O in cellulosic materials |
[12] |
2921.268 |
asymmetric and symmetric vibrations of methylene group |
[17] |
1557.785 |
C=O stretching vibration |
[25] |
1383.31 |
in plane bending vibration of (C-H) in methyl group |
[17] |
1098.308 |
C-O stretching in phenols, alcohols, acids, ethers and esters |
[26] |
SCBACS-Ph |
3434.744 |
O-H stretching vibration in alcohol, phenol and adsorbed H2O in cellulosic materials |
[12] |
1631.522 |
C=O stretching vibration in quiones |
[18] |
SCBACN |
3427.944 |
O-H stretching vibration in alcohol, phenol and adsorbed H2O in cellulosic materials |
[12] |
2919.822-2851.358 |
asymmetric and symmetric vibrations of methylene group |
[17] |
1578.99 |
C=O stretching vibration |
[27] |
1384.215 |
in plane bending vibration of (C-H) in methyl group |
[17] |
1117.11 |
R-OH group |
[28] |
1034.184 |
C-O stretching vibration of ether and alcohol |
[29] |
SCBACN-Ph |
3430.887 |
O-H stretching vibration in alcohol, phenol and adsorbed H2O in cellulosic materials |
[12] |
1627.694 |
C=O stretching vibration in quinones |
[18] |
SCBR= sugar cane bagasse residues