Adsorption Thermodynamics, Modeling, and Kinetics Studies for the Removal of Lead Ions Using ZnO Nanorods

Table 2

Kinetic parameters for the adsorption of Pb(II) ions onto ZnO.

Kinetic equation	Parameters calculated
(theory)	40.416
Pseudo-first-order
(/min)	0.563
(cal) (mg/g)	270.96
	0.7577
Pseudo-second-order
(g/mg/min/)	0.0251
(theory) (mg/g)	43.47
	47.4299
	0.9998
Intraparticle diffusion
(mg/g/min^1/2)	6.8903
	0.7133