Freundlich and Langmuir adsorption isotherm simulation parameters of four SAC.

Adsorbents	Langmuir			Freundlich
	Q m (mg g−1)	k L (L mg−1)	R 2	n	k f (mg g −1(mg L−1)−1/n)	R 2
SACN′	0.834	0.082	0.95	0.519	0.026	0.832
SACU	1.531	0.109	0.932	0.542	0.099	0.881
SACPF′	23.88	0.35	0.876	1.436	7.6	0.875
SACU–PF′	23.3	0.389	0.954	1.046	10.144	0.863