Evaluation of Fe3+ fixation into montmorillonite clay and its application in the polymerization of ethylenedioxythiophene

Modification of natural montmorillonite can be achieved efficiently through Fe3+ fixation using solutions of Fe(ClO4)3 in NaClO4. An analysis of the process by a pseudo-second order model allowed us to establish that Fe3+ sorption into montmorillonite is a chemical process that involves an exchange...

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Bibliographic Details
Published in:RSC advances 2016-10, Vol.6 (98), p.95879-95887
Main Authors: Garcia-Gonzalez, N, Frontana-Uribe, BA, Ordonez-Regil, E, Cardenas, J, Morales-Serna, JA
Format: Article
Language:English
Subjects:
Cation exchanging
Exchange
Fixation
Interstitials
Montmorillonite
Polymerization
Semiconductor materials
X-rays
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Summary:Modification of natural montmorillonite can be achieved efficiently through Fe3+ fixation using solutions of Fe(ClO4)3 in NaClO4. An analysis of the process by a pseudo-second order model allowed us to establish that Fe3+ sorption into montmorillonite is a chemical process that involves an exchange of cations from the montmorillonite interstitial space between layers. The presence of Fe3+ on the interstitial space between layers was determinated by XPS (X-ray photoelectron spectroscopy). The oxidant properties of the modified montmorillonite were evaluated by the polymerisation of ethylenedioxythiophene (EDOT) to generate polyethylenedioxythiophene (PEDOT)-clay, which is a semiconductor material.
ISSN:2046-2069
DOI:10.1039/c6ra21692g