Adsorptive Applications of Montmorillonite Clay for the Removal of Ag(I) and Cu(II) from Aqueous Medium

Table 1

Adsorption rate constants of Ag⁺ and Cu⁺⁺ adsorption onto clay derived from the pseudo-first-order and pseudo-second-order kinetic models.

	Pseudo-first-order			Pseudo-second-order
	qe(mg/g)	k1 (min^−1)	R^2	qe (mg/g)	k2 (g/mg·min)	R^2
Ag^+	0.377	0.914	0.197	19.70	3.67	1
Cu^++	0.200	1.600	0.002	10.68	0.119	1