Mechanosynthesis of MFe₂O₄ (M = Co, Ni, and Zn) Magnetic Nanoparticles for Pb Removal from Aqueous Solution

Table 1

Parameters of the pseudo-second-order kinetic model for ZnFe₂O₄, NiFe₂O₄, and CoFe₂O₄.

Adsorbent type	Pseudo-second-order model
	(g.mg^−1⋅min^−1)	(mg⋅g^−1)	(mg⋅g^−1)
CoFe2O4	0.095	7.97	7.88	0.999
NiFe2O4	0.139	11.83	12.02	0.999
ZnFe2O4	0.389	15.22	15.14	0.999