Table 1 Kinetics adsorption parameters of Cd2+ by Fe3O4@PDA
qe exp (mg/g) | Pseudo-first-order | Pseudo-second-order | ||||
|---|---|---|---|---|---|---|
K1 (min−1) | qe cal (mg/g) | R2 | K2 (g·mg−1·min−1) | qe cal (mg/g) | R2 | |
9.176 | 0.04394 | 8.852 | 0.9262 | 0.02309 | 9.250 | 0.9998 |
qe exp (mg/g) | Pseudo-first-order | Pseudo-second-order | ||||
|---|---|---|---|---|---|---|
K1 (min−1) | qe cal (mg/g) | R2 | K2 (g·mg−1·min−1) | qe cal (mg/g) | R2 | |
9.176 | 0.04394 | 8.852 | 0.9262 | 0.02309 | 9.250 | 0.9998 |