Application of the radiotracer technique for the study of the specific anion adsorption on Al2O3 in acidic medium

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26 Citations (Scopus)

Abstract

The specific adsorption of radiolabeled anions (sulfate, chloride) from perchlorate supporting electrolyte on γ-Al2O3 powder has been investigated. It was demonstrated that a measurable adsorption occurs only at pH values under pH 6. The adsorption capacity of a given amount of γ-Al2O3 powder tends to a limiting value with decreasing pH. A Langmuir-like adsorption isotherm describes the concentration dependence of the adsorption of sulfate species. It was found that the experimental results are very similar to those obtained in the case of hematite. (C) 2000 Academic Press.

Original languageEnglish
Pages (from-to)373-378
Number of pages6
JournalJournal of colloid and interface science
Volume231
Issue number2
DOIs
Publication statusPublished - Nov 15 2000

Keywords

  • Radiotracer technique
  • Specific adsorption
  • Sulfate
  • γ-AlO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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