Application of comparative method for estimating microporosity of porous solids in adsorption from solutions

Andrzej Dabrowski, Zygmunt Fekner, Imre Dékány

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The concept of a comparative method in terms of the liquid adsorption on solids is presented. This method is based on comparison of the excess adsorption isotherm on a porous solid with that measured on a reference nonporous adsorbent. It is proved that proposed approach gives the possibility for separating a total excess adsorption isotherm into partial isotherms, proper for micro- and mesopores. Several experimental systems are analyzed to illustrate the usefulness of the comparative method for evaluating the surface phase capacity, which presents an important quantity in the study of adsorption from solution in the whole concentration region. The comparative method examined for adsorption systems of microporous active carbons seems to be useful for investigating other porous materials as silica gels, zeolites or metal oxides.

Original languageEnglish
Pages (from-to)49-59
Number of pages11
JournalJournal of Porous Materials
Volume8
Issue number1
DOIs
Publication statusPublished - Jan 1 2001

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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