Skip to Main Content

The equilibrium data in Table 2 show the values of regression coefficients R2 between the adsorbate and adsorbent systems for the Langmuir, Freundlich and Temkin models. The best description of the adsorption process of Pb (II) ions was observed in the Freundlich model, based on the regression coefficient R2 = 0.964 compared with 0.957 and 0.719 for the Langmuir and Temkin isotherms, respectively. Possibly the adsorption process began with the initial monolayer coverage on the outer surface of the adsorbent, after which the sorption progressed to the multilayer dimensions.

Table 2

Model parameters for the biosorption of Pb (II) ions on WSH

Freundlich model
Langmuir model
Temkin model
KFR2nSDKLR2qmS.DKTR2BS.D
0.155 0.964 0.758 0.093 0.059 0.957 3.033 0.281 10.343 0.719 0.381 0.443 
Freundlich model
Langmuir model
Temkin model
KFR2nSDKLR2qmS.DKTR2BS.D
0.155 0.964 0.758 0.093 0.059 0.957 3.033 0.281 10.343 0.719 0.381 0.443 

Close Modal

or Create an Account

Close Modal
Close Modal