Table 1.

The isotherm of CR, CB, and MG adsorptions on the FHAP-SH.

Dye	Langmuir model			Freundlich model
	qmax (mg g−1)	KL (L mg−1)	R2	n	KF (L mg−1)	R2
CR	500	0.0071	0.9900	1.505	9.4864	0.9864
CB	235	0.0027	0.9885	1.828	18.668	0.9859
MG	625	0.0019	0.9969	1.349	9.9083	0.9890