Table 2.

Parameters of adsorption isotherm models parameters for the adsorption of dyes on Fe₃O₄/PCC MNPs

Cationic dyes	Langmuir model			Freundlich model
	qe	b	R2	qe	n	R2
MB	60.06	0.31	0.995	26.48	5.54	0.928
GB	70.97	0.47	0.999	28.12	4.43	0.943
MG	66.84	0.22	0.997	23.81	4.44	0.990
CV	66.01	0.28	0.997	24.14	4.39	0.852
FG	50.27	0.34	0.983	31.33	4.02	0.796