Adsorption of Arsenate from Aqueous Solution onto Modified Vietnamese Bentonite

Table 7

Thermodynamic parameters for the As(V) adsorption onto Fe-B and Al-B materials.

Adsorbent	∆G° (kJ/mol)			∆H° (kJ/mol)	∆S° (kJ/mol.K)
	283 K	293 K	303 K
Fe-B	−26.59	−31.35	−33.47	71.23	0.347
Al-B	−23.76	−25.16	−27.38	27.34	0.180