Comparison the Cr(vi) adsorption capacity of biochar with other materials.
| Materials | Sources | Q m (mg g−1) | References |
|---|---|---|---|
| Biochar | Corncob | 38.13 | This study |
| Durian shells | 6.66 | 27 | |
| Oak wood | 3.03 | 28 | |
| Pine sawdust | 21.03 | 60 | |
| Activated carbon | Corncob | 9.90 | 21 |
| Corncob | 25.69 | 22 | |
| Slurry | 38.17 | 61 | |
| Composite | Corncob activated carbon + banana peel | 35.84 | 62 |
| Biochar + bentonite + rarasaponin | 23.02 | 27 | |
| MnO2 + chitosan | 61.56 | 55 | |
| Magnetic biochar | Fe2O3/corncob biochar | 25.94 | 24 |
| Polypyrrol/corncob | 19.23 | 25 | |
| Phoenix tree leaves + nano Fe3O4 | 19.02 | 63 | |
| Waste reed + nano Fe3O4 | 9.92 | 64 |