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

Table 3

Adsorption kinetic parameters for Pb(II) adsorption on the Fe₃O₄/rGO composite.

(mgL^−1)	Pseudo-first-order kinetics			Pseudo-second-order kinetics
	(min^−1)	(mg⋅g^−1)		(g⋅mg^−1⋅min^−1)	(mg⋅g^−1)	(mg⋅g^−1)
20.00	0.0300	13.31	0.9896	0.0025	18.15	15.63	0.9976
40.00	0.0385	16.15	0.9805	0.0044	27.52	26.03	0.9997
60.00	0.0360	20.51	0.9691	0.0040	33.70	33.03	0.9910
80.00	0.0318	20.39	0.9805	0.0044	37.98	38.33	0.9932
100.00	0.0296	20.13	0.9914	0.0047	42.34	43.14	0.9966