. 2019 Dec 19;28:105022. doi: 10.1016/j.dib.2019.105022

Table 5.

Adsorption isotherms models by Langmuir and Freundlich.

Model	Equation	Description	Ref
Langmuir	$q_{e} = \frac{Q_{0} K_{L} C_{e}}{1 + K_{L} C_{e}}$ $R_{L} = \frac{1}{1 + K_{L} C_{0}}$	$q_{e}$ : amount of solute adsorbed in the adsorbent (mg/g) $Q_{0}$ : maximum adsorption capacity (mg/g) $K_{L}$ : constant according to the Langmuir model (l/mg) $R_{L}$ : separation factor (dimensionless)	[4,5]
Freundlich	$q_{e} = K_{F} C_{e}^{\frac{1}{n}}$	$q_{e}$ : amount of solute adsorbed in the adsorbent (mg/g) $K_{F}$ : Freundlich constant related to the adsorption capacity ((mg/g)(l/mg)ⁿ) n: Freundlich constants related to the adsorption intensity of the adsorbent (dimensionless)	[4,6]