Table 5 Nonlinear isotherm parameters for MB adsorption onto CK–CNF–Fe cryogel beads (T = 298 K, pH = 7).
Model | Parameter | Symbol | Value | Unit | R² | RMSE |
|---|---|---|---|---|---|---|
Langmuir (Nonlinear) | Maximum adsorption capacity | qₘₐₓ | 812.45 | mg g⁻¹ | 0.997 | 2.10 |
Langmuir constant | K_L | 0.014 | L mg⁻¹ | — | — | |
Freundlich (Nonlinear) | Freundlich constant | K_F | 45.6 | (mg g⁻¹)(L mg⁻¹)¹⁄ⁿ | 0.962 | 3.84 |
Heterogeneity factor | n | 1.87 | — | — | — |
