Functional Group | Sample | Characteristics Adsorption [29] |
Sulfone S=O | 1322 | 1300 |
Aromatic carbon double bond C=C | 1680.16 | 1600 or 1475 |
Aromatic carbon hydrogen bond C-H | 3859.91 | 3000 - 3020 |
Ether Diaryl C-O-C stretch | 1013.36 | 1000 - 1300 |
Anhydride C-O stretch | 1295.62 | 1300 |
O-H bound in Zeolite | 3596.17 | 3200 - 3600 |