Preparation and Adsorption Performance on Congo Red of Sodium Alginate-Lanthanum Hydrogel Spheres

Table 3

Adsorption isotherm equation fitting parameters of SA/La1 hydrogel spheres at different temperatures.

Temperature (°C)	Freundlich isotherm model			Langmuir isotherm model
	n	KF (mg·L^−1)	R^2	qm (mg·L^−1)	KL (L·mg^−1)	R^2
25	1.5733	1.5336	0.8284	20.0803	0.0594	0.9345
35	1.5790	1.0745	0.8177	14.8368	0.0549	0.9356
45	1.5995	0.8463	0.8085	11.9189	0.0517	0.9208