Relationship between Commonly Used Adsorption Isotherm Equations Impedes Isotherm Selection

  • Zsanett Dorkó
    Affiliation

    Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Hungary

  • Anett Szakolczai
    Affiliation

    Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Hungary

  • Blanka Tóth
    Affiliation

    Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Hungary

  • George Horvai
    Affiliation

    Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Hungary

Abstract

If the measured isotherm data of an adsorption system are well described by the Freundlich equation, then they can similarly well be described by the bi-Langmuir or tri-Langmuir model in most practical cases. This is proved by Monte Carlo simulation and by comparison of the mathematical functions of the respective isotherm models.

Keywords: isotherm fitting, bi-Langmuir isotherm, Freundlich isotherm, adsorption isotherm, binding site
Published online
2017-01-23
How to Cite
Dorkó, Z., Szakolczai, A., Tóth, B., Horvai, G. “Relationship between Commonly Used Adsorption Isotherm Equations Impedes Isotherm Selection”, Periodica Polytechnica Chemical Engineering, 61(1), pp. 10-14, 2017. https://doi.org/10.3311/PPch.10103
Section
Articles