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Infrared analysis results of different vibration bands.
| Adsorbent | Vibration bands (cm -1 ) | Assignment |
|---|---|---|
| Adsorbent A 1 | 3606 | Vibration of the hydroxyl group |
| 3397-1636 | Axial and angular deformation of water molecules | |
| 1442 | Vibration stretch of CO3 | |
| 909 | Deformation of Al-OH | |
| 797 | Vibration stretch of Si-O | |
| 692 | Deformation of Si-O-Al | |
| 508 | Vibration of links Si-O-Si |
