Interlamellar adsorption of organic pollutants on hydrophobic vermiculite

A. Farkas, I. Dékány

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2 Citations (Scopus)

Abstract

The adsorption isotherms of nitrobenzene, 2-chlorophenol and 4-chlorophenol from water on hydrophobic vermiculite were studied. The excess isotherms were obtained by the immersion method. The basal spacings of the hydrophobic vermiculite organocomplexes in the adsorption equilibrium were determined by X-ray diffraction. By combining these two independent methods, the composition and the structure of the interlamellar space were evaluated. The free enthalpy of adsorption and the adsorption capacity were calculated by analyzing the adsorption isotherm on the basis of the Gibbs equation and by the Everett-Schay method.

Original languageEnglish
Pages (from-to)63-69
Number of pages7
JournalProgress in Colloid and Polymer Science
Volume117
Publication statusPublished - Dec 1 2001

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Keywords

  • Adsorption
  • Hydrophobic clays
  • Organic pollutants
  • X-ray diffraction

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

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