A Freundlich-type multicomponent isotherm

Ch Sheindorf*, M. Rebhun, M. Sheintuch

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

323 Scopus citations


A multicomponent adsorption isotherm is derived based on the assumption that an exponential distribution of adsorption energies exists for each component. A prerequisite for the application of the isotherm is that each component individually obey the Freundlich isotherm. The preexponential coefficients and the exponents of the monocomponent isotherms are parameters of the multicomponent isotherm. The isotherm of each component in a k-component system employs (k - 1) competition coefficients which should be determined experimentally or from thermodynamic data. The proposed isotherm is successfully employed for describing adsorption equilibria data in aqueous-solid systems.

Original languageEnglish
Pages (from-to)136-142
Number of pages7
JournalJournal of Colloid and Interface Science
Issue number1
StatePublished - Jan 1981
Externally publishedYes


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