| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1236561 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2006 | 6 Pages |
Abstract
The structural modifications and the Bronsted acid sites generated during the acid treatment of montmorillonite clay with varied concentration of sulphuric acid was determined using FT-IR spectroscopy. Octahedral sheet is affected at low acid concentration resulting into the dissolution of cations; among them Mg2+ cations are prone to dissolve than Fe2+/3+ and Al3+. Tetrahedral sheet is affected at higher acid concentration. The partial substitution of octahedral Al3+ by Mg2+ or Fe2+/3+ cations and the presence of other non-smectite minerals such as kaolinites was also been clearly identified, thus making FT-IR spectroscopy as a rapid technique for monitoring the structural features of montmorillonite clay.
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Authors
Beena Tyagi, Chintan D. Chudasama, Raksh V. Jasra,