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
28380.2977.82−0.03788.41
29388.79
30389.16
31389.53

Al-B
41.9039.32−0.16285.16
86.78
88.40
90.02