Research Article
Adsorption of Arsenate from Aqueous Solution onto Modified Vietnamese Bentonite
Table 4
Activation energy and activation parameters of adsorption process.
| T (K) | Ea (kJ/mol) | ∆H# (kJ/mol) | ΔS# (kJ/mol.K) | ΔG# (kJ/mol) |
| Fe-B | | | | | 283 | 80.29 | 77.82 | −0.037 | 88.41 | 293 | | | | 88.79 | 303 | | | | 89.16 | 313 | | | | 89.53 |
| Al-B | | | | | | 41.90 | 39.32 | −0.162 | 85.16 | | | | | 86.78 | | | | | 88.40 | | | | | 90.02 |
|
|