Effective Removal of Malachite Green from Aqueous Solutions Using Magnetic Nanocomposite: Synthesis, Characterization, and Equilibrium Study

Table 2

Langmuir and Freundlich isotherm models for MG adsorption on Fe₃O₄@AJPL nanocomposite (conditions: MG—20-350 mg/L, time—120 min, Fe₃O₄@AJPAL—50 mg, volume—0.05 L, and agitation—100 rpm).

Model	MG dye
	298 K	308 K	318 K
Langmuir
(mg/g)	260.8	302.7	318.3
(L/mg)	0.026	0.040	0.052
	0.657	0.551	0.485
	0.989	0.980	0.980
Freundlich
(mg/g) (L/mg)^1/n	21.67	31.65	39.91
	0.929	0.894	0.925