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Kinetic, Equilibrium and Thermodynamics Study of the Adsorption of Pb(Ii), Cu(Ii) and Ni(Ii) from Aqueous Solution using Mangiferaindica Leaves

Table 2.

Kinetic parameter of various adsorbates

Isotherm models	Adsorbates (Metal ions)
	Ni⁺ions	Pb²⁺ ions	Cu²⁺ions
Pseudo-first order
K₁	0.0310	0.0598	0.1681
q_e	1.3313	30.8810	21.4634
R²	0.9098	0.9059	0.6511
Pseudo-second order
K₂	10.248	0.00006	416.66
q_e	3.0931	-1666.7	0.00012
R²	0.9938	1	1