Table 1 The fitted parameters for equilibrium and kinetic adsorption of Pb (II) by Fe3O4@C sample
Sample | [Pb(II)]o (mg/L) | qe,exp (mg/g) | qe,cal (mg/g) | k2 × 10−3 (g mg−1 min−1) | R 2 | Removal (%, 24 h) |
---|---|---|---|---|---|---|
Fe3O4@C | 10 | 24.84 | 24.94 | 8.57 | 0.999 | 99.4 |
30 | 74.07 | 74.51 | 2.03 | 0.999 | 98.7 | |
50 | 119.74 | 120.77 | 0.89 | 0.999 | 95.8 |