| Isotherms | Parameters | Values | Hypotheses |
| Langmuir | Qmax (mg/g) | −8.1 | - monolayer, - number of adsorption sites; - 1 site = 1 molecule; - no mobility and interaction of the molecules. |
| KL (L·mg−1) | −0.13 | ||
| RL | −0.19 | ||
| R2 | 0.99 | ||
| Freundlich | KF (mg(1−n)·Ln·g−1) | 1.101 | - heterogeneous surface, - no mobility and interaction of molecules on the surface |
| n | 0.70 | ||
| Qmax | 17.61 | ||
| R2 | 0.97 |