Research Article
Removal of Heavy Metal Ions (Pb2+, Co2+, and Cd2+) by Activated Carbon from Cypress Fruit: An Investigation of Kinetics, Thermodynamics, and Isotherms
Table 1
FT-IR results of ACC, ACC-Pb2+, ACC-Co2+, and ACC-Cd2+.
| | ACC (cm−1) | ACC-Pb2+ (cm−1) | ACC-Co2+ (cm−1) | ACC-Cd2+ (cm−1) |
| O-H stretching vibration | 3696 | 3710 | 3369 | 3378 | C-H stretching | 2781 | 2672 | 2687 | 3040 | C=O stretching vibration | 1723 | 1702 | 1754 | 1754 | C-H bending | 1545 | 1567 | 1456 | 1595 | Aromatic-CH group | 1021 | 1024 | 932 | 1074 | Metal ion-O stretching | — | 419, 507 | 433, 447, 481 | 316, 489 |
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