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Isotherm parameters for Cr(VI) adsorption on pristine biochar and m-biochar.
| Materials | Langmuir | Freundlich | ||||
|---|---|---|---|---|---|---|
|
qm (mg/g) |
kL (L/mg) |
R 2 | n |
kf (μg/g)/(μg/L)n |
R 2 | |
| biochar | 6.81 | 0.86 | 0.90 | 0.13 | 4.07 | 0.98 |
| m-biochar | 7.72 | 0.77 | 0.95 | 0.14 | 4.48 | 0.92 |
