Research Article
Adsorption of Atenolol on Kaolinite
Table 2
FTIR bands for AT and AT adsorbed on KGa-2.
| 0.0 mmol/L | 0.6 mmol/L | 1.2 mmol/L | 1.8 mmol/L | 2.4 mmol/L | 3.0 mmol/L | 3.6 mmol/L | 4.0 mmol/L | Pure AT | Band assignments |
| | | | | | | | | 3700 | | — | 3410 | 3410 | 3410 | 3410 | 3410 | 3410 | 3410 | 3360 | NH banding vibration1 | — | — | — | — | — | — | — | — | 3158 | NH valence vibrations2 | | 2972 | 2972 | 2972 | 2972 | 2972 | 2972 | 2972 | 2972 | C–H stretching1 | 2923 | 2923 | 2923 | 2923 | 2923 | 2923 | 2923 | 2923 | 2923 | | 2902 | 2902 | 2902 | 2902 | 2902 | 2902 | 2902 | 2902 | 2901 | | 2359 | 2359 | 2359 | 2359 | 2359 | 2359 | 2359 | 2359 | 2359 | | 1654 | 1654 | 1654 | 1654 | 1654 | 1654 | 1654 | 1654 | 1633 | C=O1,2 | | | | | | | | | 1515 | benzene ring skeletal vibration1 or C=C valence vibrations of the aromatic | 1395, 1408 | 1395, 1408 | 1395, 1408 | 1395, 1408 | 1395, 1408 | 1395, 1408 | 1395, 1408 | 1395, 1408 | 1410 | NH bending vibrations2 | 1385 | 1385 | 1385 | 1385 | 1385 | 1385 | 1385 | 1385 | 1381 | | — | — | — | — | — | — | — | — | 1338 | | — | — | — | — | — | — | — | — | 1301 | | 1252, 1230 | 1252, 1230 | 1252, 1230 | 1252, 1230 | 1252, 1230 | 1252, 1230 | 1252, 1230 | 1252, 1230 | 1237 | Alkyl aryl ether linkage1 | — | — | — | — | — | — | — | — | 1178 | | | | | | | | | | 1088 | | | | | | | | | | 1054 | | | | | | | | | | 917 | | | | | | | | | | 911 | | | | | | | | | | 795 | | | | | | | | | | 669 | |
|
|
Seema and Datta [4]. Nikolić et al. [29].
|