Research Article
Activated and Nonactivated Date Pits Adsorbents for the Removal of Copper(II) and Cadmium(II) from Aqueous Solutions
Table 2
Isotherm parameters for adsorption of Cd(II) onto selected adsorbents, RDP and ADP.
| Adsorbent | Langmuir model | Freundlich model | Dubinin-Radushkevich (D-R) model | | | | | | | | | | |
| RDP | 6.02 | 0.019 | 0.32–0.84 | 0.963 | 1.49 | 0.203 | 0.999 | 0.75 | 0.14 | 0.955 | ADP | 17.24 | 0.032 | 0.22–0.76 | 0.985 | 1.51 | 0.82 | 0.997 | 1.04 | 0.14 | 0.900 |
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