Study on Adsorption of Cu and Ba from Aqueous Solutions Using Nanoparticles of Origanum (OR) and Lavandula (LV)

Table 2

Adsorption isotherm parameters for the metal ion adsorption onto OR and LV.

Adsorption isotherm	Parameter	Adsorbent (OR)		Adsorbent (LV)
		Cu	Ba	Cu	Ba
Langmuir	qm (mg/g)	28.17	27.62	31.25	25.06
	KL × 10^3 (L/mg)	77.8	58.80	52.84	75.53
	RL	0.56	0.63	0.65	0.57
	R^2	0.963	0.965	0.975	0.976
Freundlich	KF (mg/g) (L/mg)^1/n	1.74	1.35	1.40	1.50
	n	1.17	1.16	1.16	1.18
	R^2	0.983	0.988	0.994	0.982