Table 3. Kinetic Parameters Based on the Pseudo-Second-Order Kinetic Model.
| adsorbent | qe(exp.) (mg/g) | qe(theor.) (mg/g) | k1 (min–1) | R2 |
|---|---|---|---|---|
| Pb | ||||
| GO | 110 | 105 | 1.22 × 10–3 | 0.962 |
| FGO | 121 | 119 | 1.34 × 10–3 | 0.995 |
| Al | ||||
| GO | 119 | 112 | 8.5 × 10–3 | 1 |
| FGO | 127 | 121 | 9.75 × 10–3 | 0.9996 |