Table 5: Results of the pseudo first and pseudo second-order models.

Pb (II) (5 ppm)			Pb (II) (30 ppm)
Kinetic Model	Parameters	Correlation (R2)	Parameters	Correlation (R2)
Pseudo First Order	k1 = 0.0086 min‒1	0.9530	k1 = 0.0096 min‒1	0.9038
	Qe = 7.167 mg/g		Qe = 24.675 mg/g
Pseudo Second Order	k2 = 7.772x10‒3 g/mg.min	0.9997	k2 = 3.355x10‒3 g/mg.min	0.9998
	Qe = 7.391 mg/g		Qe = 25.189 mg/g
	h1 = 0.4246 mg/g.min		h2 = 2.1287 mg/g.min