Sorption experiments of Cr(III) onto silica

K. Csobán, M. Párkányi-Berka, P. Joó, Ph Behra

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The sorption and desorption behaviour of chromium(III) onto amorphous silicagel has been studied for two cases: freshly prepared and aged solutions. We have examined how solution pH, initial Cr(III) concentration, valency and concentration of background electrolyte and the presence of fluoride ion affect these processes. Desorption can be induced by acidification. Applying the same solution conditions, Cr(III) uptake and release are greater from aged solutions. Outer sphere complex formation can be deduced from the great ionic strength dependence at the onset of the sorption.

Original languageEnglish
Pages (from-to)347-364
Number of pages18
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume141
Issue number3
DOIs
Publication statusPublished - Nov 15 1998

Fingerprint

Silicon Dioxide
sorption
Sorption
Silica
silicon dioxide
Desorption
desorption
Experiments
Acidification
Chromium
Ionic strength
Fluorides
Electrolytes
fluorides
chromium
electrolytes
Ions
ions

Keywords

  • Amorphous silica
  • Chromium(III)
  • Desorption
  • Experiments
  • Fluoride
  • Sorption

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

Sorption experiments of Cr(III) onto silica. / Csobán, K.; Párkányi-Berka, M.; Joó, P.; Behra, Ph.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 141, No. 3, 15.11.1998, p. 347-364.

Research output: Contribution to journalArticle

Csobán, K. ; Párkányi-Berka, M. ; Joó, P. ; Behra, Ph. / Sorption experiments of Cr(III) onto silica. In: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 1998 ; Vol. 141, No. 3. pp. 347-364.
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