Table 4.

The data of thermal parameters of Cr⁺⁶ adsorption (10 ppm of 0.4 g/50 mL of nanocomposites, for a contact time of 40 min and at a pH of 2).

Parameter	T (K)	A%	LnKL	∆Ho (KJ.mol−1)	∆So (J.mol−1.K−1)	∆Go (kJ.mol−1)	R2
Cr+6/(AC-CS-Alginate)	300	94	0.672	−23.393	−70.729	−1.619	0.9917
	313	90.5	0.174			−0.455
	323	87	−0.178			0.481
Cr+6/GnZVCu/AC-CS-Alginate	300	96	1.098	−21.461	−61.633	−2.747	0.9993
	313	94	0.672			−1.754
	323	91.7	0.322			−0.867