Fe₃O₄/Reduced Graphene Oxide Nanocomposite: Synthesis and Its Application for Toxic Metal Ion Removal

Table 4

Adsorption isotherm parameters for metal adsorption on Fe₃O₄/rGO composite.

Ions	Langmuir isotherm			Freundlich isotherm
	(L⋅mg^−1)	(mg⋅g^−1)
As(V)	0.054	54.48	0.9965	6.751	2.080	0.9773
Pb(II)	0.022	65.79	0.9977	3.688	1.774	0.9927
Ni(II)	0.078	76.34	0.9992	9.332	1.886	0.9868