A Method for Deriving Explicit Binary Isotherms Obeying the Ideal Adsorbed Solution Theory

Authors

  • A. Tarafder,

    1. Institute of Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
    2. Institute of Process Engineering, ETH Zurich, Zurich, Switzerland
    3. Current address: Department of Chemistry, University of Tennessee, Knoxville, TN 37996-1600, USA
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  • M. Mazzotti

    Corresponding author
    1. Institute of Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
    2. Institute of Process Engineering, ETH Zurich, Zurich, Switzerland
    • Institute of Process Engineering, ETH Zurich, Zurich, Switzerland
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Abstract

A method to derive explicit binary isotherms following the ideal adsorbed solution (IAS) theory is proposed. The method is applicable to any pair of single-component isotherms, as long as they fulfill a set of conditions, as described in this report. Examples of some isotherms fulfilling such conditions are: Langmuir, anti-Langmuir, Brunauer-Emmett-Teller (BET), and quadratic. Following the method proposed in this report, three previously unreported explicit binary isotherms, quadratic-BET, quadratic-Langmuir, and quadratic-anti-Langmuir, while following the IAS framework, could be derived. This work presents the method and the binary isotherms derived through this method.

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