Research Article
Study on Adsorption of Cu and Ba from Aqueous Solutions Using Nanoparticles of Origanum (OR) and Lavandula (LV)
Table 3
Thermodynamic parameters for the metal ion adsorption onto OR and LV.
| Parameter | Adsorbent (OR) | Adsorbent (LV) | Cu | Ba | Cu | Ba |
| ∆H° (J/mol) | 1867.07 | 9096.35 | 3748.28 | 10161.4 | ∆S° (J/mol K) | 14.52 | 33.14 | 17.16 | 45.89 | ∆G° (kJ/mol) at 298K | –2.46 | –0.78 | –1.36 | –3.51 | ∆G° (kJ/mol) at 333K | –2.97 | –1.94 | –1.96 | –5.12 | R2 | 0.966 | 0.964 | 0.968 | 0.957 |
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