Adsorption of Cu (II) and Cd (II) from Wastewater by Sodium Alginate Modified Materials

Table 4

Isothermal parameters of adsorption of Cu (II) and Cd (II) by SACL at different temperatures.

Metal ion	T (K)	Langmuir model			Fruendlich model
		Qn (mg·g^−1)	Kl	R^2	Ks	1/n	R^2
Cu (II)	288	4.377	0.047	0.929	0.253	0.988	0.741
	298	5.608	0.062	0.917	0.458	0.761	0.674
	308	6.783	0.063	0.889	0.470	0.809	0.657
Cd (II)	288	1.39	0.013	0.943	7.070	4.146	0.862
	298	3.035	0.017	0.944	0.126	1.126	0.910
	308	3.426	0.015	0.952	0.067	1.531	0.709