Table 1.
The determined constants of pseudo-first-order and pseudo-first-order kinetic model with correlation coefficients (R 2) at different initial concentrations
| Initial (CR) | Q e, exp (mg/g) | Pseudo-first-order kinetics model | Pseudo-second-order kinetics model | ||||
|---|---|---|---|---|---|---|---|
| k 1 (min−1) | Q e,1 (mg/g) | R 2 | k 2 (g/mg min) | Q e,2 (mg/g) | R 2 | ||
| 40 mg/L | 87.05 | 0.0590 | 118.68 | 0.9439 | 7.77 × 10−4 | 88.73 | 0.9986 |
| 60 mg/L | 130.03 | 0.0421 | 107.45 | 0.9650 | 5.59 × 10−4 | 133.33 | 0.9982 |
| 80 mg/L | 172.38 | 0.0720 | 453.45 | 0.8887 | 2.72 × 10−4 | 180.18 | 0.9997 |