Research Article
Removal of Triphenylmethane Dyes by Bacterial Consortium
Table 2
Assignments of the FTIR spectral peaks of crystal violet (CV) and malachite green (MG).
| | Wavelength (cm−1) | Vibration | Functional or component |
| | CV control at (0 h) | 3444.93 | O–H stretch | Hydroxyl groups and water | | 1588.30 | C=C stretch | Aromatic ring | | 1178.82 | C–N stretch | Tertiary amine | | 2917.14 | C–H stretch | CH3 group | | 1360.98 | C–N stretch | Aromatic tertiary amine |
| | CV at (2 h) | 3435.6 | O–H stretch | Hydroxyl groups, phenols, and water | | N–H stretch | Aliphatic primary amine | | 1652.13 | C=C | Alkenyl C=C stretch | | 1124.33 | C–N | Aliphatic amine |
| | MG control at (0 h) | 3400 | O–H stretch | Hydroxyl groups, and water | | 1579.73 | C=C stretch | Aromatic ring | | 1170.26 | C–N stretch | Tertiary amine | | 2925.71 | C–H stretch | CH3 group | | 1370.32 | C–N stretch | Aromatic tertiary amine |
| | MG at (2 h) | 3426.26 | O–H stretch | Hydroxyl groups, phenols and water | | N–H stretch | Aliphatic primary amine | | 1642.79 | C=C | Alkenyl C=C stretch | | 1114.99 | C–N | Aliphatic amine |
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