Table 2.
Fitting parameters for the PFO and PSO adsorption kinetic models.
| Pseudo First Order | Pseudo Second Order | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Concentration (mg L−1) |
R2 | K1 (min−1) |
qethe (mg g−1) |
qeexp (mg g−1) |
R2 | K2 (g mg−1 min−1) |
qethe (mg g−1) |
qeexp (mg g−1) |
h (mg g−1 min−1) |
| 5 | 0.707 | 0.003 | 1.16 | 3.96 | 0.99 | 0.02 | 3.98 | 3.96 | 0.068 |
| 10 | 0.518 | 0.002 | 2.12 | 9.09 | 0.99 | 0.01 | 8.97 | 9.09 | 0.090 |
| 20 | 0.500 | 0.002 | 4.96 | 20.9 | 0.99 | 0.004 | 20.8 | 20.9 | 0.073 |
| 50 | 0.732 | 0.003 | 12.3 | 46.5 | 0.99 | 0.001 | 46.9 | 46.5 | 0.060 |
| 100 | 0.371 | 0.002 | 9.61 | 96.8 | 1.0 | 0.001 | 97.1 | 96.8 | 0.18 |
| 200 | 0.531 | 0.003 | 22.1 | 183 | 1.0 | 0.001 | 185 | 183 | 0.15 |
| 460 | 0.209 | 0.002 | 12.6 | 237 | 0.99 | 0.006 | 238 | 237 | 1.5 |