New Sorption Isotherms Derived from a Gamma Distribution of Binding Constants
Jean Debord,
Michel Harel,
Jean-Claude Bollinger
et al.
Abstract:New sorption isotherms for heterogeneous sorbents are derived by combining a Gamma distribution of binding constants with a local isotherm defined by a Langmuir or Hill equation. The new "Gamma isotherms" are expressed as Stieltjes transforms of the distribution and involve generalized exponential integrals. The related energy distributions are asymmetric and present a peak corresponding to the mean binding constant. The advantages of the new isotherms are (1) at low pressures or concentrations, with a Langmui… Show more
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