Skip to main content

View full-text article in PMC

. 2020 Jan 10;7:905. doi: 10.3389/fchem.2019.00905

Table 1.

Langmuir and Freundlich isotherm parameters of the heavy metal ions adsorption.

Metal ions	Langmuir isotherm				Freundlich isotherm
	R²	K_L (L·mg⁻¹)	Q_m(mg·g⁻¹)	*R_L*	R²	K_F(mg^1-1/n·L^1/n ·g⁻¹)	n
Cu²⁺	0.993	0.016	315.92	0.059–0.862	0.877	5.76	1.862
Cd²⁺	0.974	0.030	232.32	0.032–0.769	0.773	6.30	1.920
Pb²⁺	0.974	0.031	465.22	0.031–0.763	0.893	4.35	1.565