Table 5.
Isotherm model parameters.
| Metal | Langmuir model | Freundlich model | ||||
|---|---|---|---|---|---|---|
| q max (mg/g) | b | R 2 | K F | 1/n | R 2 | |
| Ni2+ | 242.5 | 0.0237 | 0.9885 | 10.711 | 0.5555 | 0.9565 |
| Cd2+ | 226.9 | 0.0215 | 0.9911 | 7.942 | 0.5791 | 0.9347 |
| Zn2+ | 204.3 | 0.0141 | 0.9884 | 5.631 | 0.6105 | 0.9529 |
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