Ionic and molecular transport in hydrophobized montmorillonite films: An electrochemical survey

P. Joó, Alanah Fitch

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Clay-modified electrodes are used to investigate the swelling properties of quaternary ammonium cation-modified Wyoming montmorillonite. Disruption of the structure of the clay was observed at modification rates exceeding 37% of the available exchange sites. Signals for the transport of an anionic pore sampler were attenuated in the presence of the QAC-modified clays. The electrochemistry of nitrobenzene proved the presence of hydrophobic locations within the clay film. Nitrobenzene transport was attenuated by the presence of the clay film but to a lesser extent than the anion, suggesting sorption of the aromatic to the modified clay.

Original languageEnglish
Pages (from-to)2681-2686
Number of pages6
JournalEnvironmental Science and Technology
Volume30
Issue number9
DOIs
Publication statusPublished - Sep 1996

Fingerprint

Bentonite
Clay minerals
montmorillonite
Clay
clay
Nitrobenzene
electrochemistry
Electrochemistry
Ammonium Compounds
swelling
sampler
Anions
Swelling
Cations
Sorption
anion
electrode
Negative ions
ammonium
sorption

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Environmental Engineering

Cite this

Ionic and molecular transport in hydrophobized montmorillonite films : An electrochemical survey. / Joó, P.; Fitch, Alanah.

In: Environmental Science and Technology, Vol. 30, No. 9, 09.1996, p. 2681-2686.

Research output: Contribution to journalArticle

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