PUPAIM (version 0.2.0)

dubininradanalysis: Dubinin-Radushkevich Isotherm Analysis Non-Linear Form

Description

It is an empirical generally applied to express adsorption mechanism with Gaussian energy distribution onto heterogeneous surfaces (Tsamo, et,al, 2019). In the non-linear form, qe =Xm*exp(-K*Ce^2). The said model has often fitted high solute activities and the intermediate range of concentrations as well. One unique feature of the said model is that it is temperature-dependent (Dada, et, al, 2012).

Usage

dubininradanalysis(Ce, Qe)

Arguments

Ce

the numerical value for the equilibrium capacity

Qe

the numerical value for the adsorbed capacity

Value

the linear regression, errors, and the parameter values (Xm, and K) for the Dubinin-Radushkevich Isotherm Model

References

One-, Two-, and Three-Parameter Isotherms, Kinetics, and Thermodynamic Evaluation of Co(II) Removal from Aqueous Solution Using Dead Neem Leaves, Tsamo, et,al. (2019), Volume 2019, https://doi.org/10.1155/2019/6452672

Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich Isotherms Studies of Equilibrium Sorption of Zn^+2 Unto Phosphoric Acid Modified Rise Husk, Dada, et, al, (2012), Journal of Applied Chemistry, Volume 3, Issue 1, pp 38-45, www.iosrjournals.org

Examples

# NOT RUN {
Ce <- c(0.01353, 0.04648, 0.13239, 0.27714, 0.41600, 0.63607, 0.80435, 1.10327, 1.58223)
Qe <- c(0.03409, 0.06025, 0.10622, 0.12842, 0.15299, 0.15379, 0.15735, 0.15735, 0.16607)
dubininradanalysis(Ce, Qe)
# }