Comparison of the maximum adsorption capacities for Pb(ii) and Cd(ii) onto BC/FM with other adsorbents reported in earlier studiesa.
| Adsorbents | Q m (mg g−1) | Reference | |
|---|---|---|---|
| Pb | Cd | ||
| Biochar from maple wood | 43.3 | ∼ | 3 |
| Calcium-based magnetic biochar | ∼ | 10.7 | 13 |
| Manure-derived biochar (DM200/DM350) | ∼ | 31.9/51.4 | 16 |
| Buffalo weed biochar (BWBC) | 333.33 | 11.63 | 17 |
| Ferromanganese binary oxide-biochar (FMBC) | ∼ | 101.0 | 22 |
| Corn straw biochar (BC) | ∼ | 28.0 | |
| Magnetic oak bark biochar | 30.20 | 7.40 | 35 |
| Magnetic oak wood biochar | 10.13 | 2.87 | |
| Biochar-supported hydrated manganese oxide (BC-HMO) | 67.90 | 22.30 | 37 |
| Magnetic pine park biochar | 25.294 | 14.960 | 40 |
| BC/FM | 154.94 | 127.83 | This study |
a
Maximum sorption capacity obtained from sorption experiments.