Uptake of benzenecarboxylate ions by magnesium aluminium oxides

Tsugio Sato, Kenji Kato, Toshiaki Yoshioka, Akitsugu Okuwaki

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The behaviour of uptake of the benzenecarboxylate ions, C6H6‐n(COO)nn (n = 1–6), in aqueous solutions by rock‐salt type magnesium aluminium oxide, Mg(1‐x)(2+x)Al2x/(2+x)O (x = 0.17, 0.30, 0.33) was investigated at 0.70°C. All the benzenecarboxylate ions were taken up from solution competitively with OH‐ to form the hydrotalcite‐like layered double hydroxides. The uptake rate could be adequately described by a surface chemical reaction controlled shrinking core model, and the apparent activation energy was c. 60 kJ mol−1. The selectivity of anion uptake increased with increasing the charge density of the benzenecarboxylate ions. The amount of benzenecarboxylate ions incorporated in the interlayer of hydrotalcite and the selectivity of uptake for benzenecarboxylate possessing higher electric change increased with increasing aluminium content in the magnesium aluminium oxide.

Original languageEnglish
Pages (from-to)385-390
Number of pages6
JournalJournal of Chemical Technology & Biotechnology
Volume55
Issue number4
DOIs
Publication statusPublished - 1992

Keywords

  • benzenecarboxylate ion
  • intercalation
  • layered double hydroxide
  • magnesium aluminium oxide
  • selective uptake of anion

ASJC Scopus subject areas

  • Biotechnology
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Waste Management and Disposal
  • Pollution
  • Organic Chemistry
  • Inorganic Chemistry

Fingerprint Dive into the research topics of 'Uptake of benzenecarboxylate ions by magnesium aluminium oxides'. Together they form a unique fingerprint.

Cite this