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Parameters of Freundlich, Langmuir and Sips isotherms for As(V) adsorption onto functionalized materials.
| Adsorption Isotherms | Parameters | V-DEHPA-Fe | VF-DEHPA-Fe |
|---|---|---|---|
| Experimental Values | |||
| qm,exp (µg g−1) | 247.5 | 171.2 | |
| Isotherm Models Values | |||
| Langmuir | qL (µg g−1) | 251.3 | 179.7 |
| KL (L mg−1) | 0.014 | 0.013 | |
| R2 | 0.9728 | 0.9398 | |
| Freundlich | KF (L mg−1) | 64.13 | 48.23 |
| 1/nF | 0.165 | 0.165 | |
| R2 | 0.8317 | 0.7229 | |
| Sips | qS (µg/g) | 257.3 | 180.4 |
| KS | 0.028 | 0.015 | |
| 1/nS | 0.164 | 0.029 | |
| R2 | 0.9747 | 0.9280 | |
