Table 1 Isotherm constants for the adsorption of MG onto TLLP at pH 6.5
Temperature (K) | KL (L/mg) | qm (mg/g) | RL | R2 |
|---|---|---|---|---|
Langmuir isotherm | ||||
293 | 0.0638 | 333.33 | 0.0429 | 0.978 |
303 | 0.0833 | 333.33 | 0.0332 | 0.975 |
313 | 0.1000 | 333.33 | 0.0278 | 0.981 |
Temperature (K) | KF (mg/g) | n | R2 | |
|---|---|---|---|---|
Freundlich isotherm | ||||
293 | 26.1216 | 1.5267 | 0.994 | |
303 | 31.4051 | 1.5198 | 0.994 | |
313 | 35.2371 | 1.5314 | 0.993 | |
Temperature (K) | Β (mol2/J2) | \(q_{DR}\) (mg/g) | E (kJ/mol) | R2 |
|---|---|---|---|---|
Dubinin–Radushkevich isotherm | ||||
293 | 1.0 × 10−8 | 348.50 | 7.07 | 0.996 |
303 | 1.0 × 10−8 | 418.91 | 7.07 | 0.993 |
313 | 1.0 × 10−8 | 435.57 | 7.07 | 0.997 |