Online Journal of Materials Science

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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 1.

Isotherm Parameters of Various Adsorbent

Isotherm models	Adsorbates (Metal ions)
	Ni⁺ions	Pb²⁺ ions	Cu²⁺ions
Langmuir
R²	0.9214	0.9950	0.9908
Q_m	-0.3874	3.5523	-0.0603
K_L	-7.1890	4.3383	-2.2470
Freundlich
R²	0.9973	0.9976	0.9942
N	0.6762	1.6998	0.6524
K_f	0.0874	4.2677	0.0900