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Iron in reduced charge montmorillonites |
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| Authors: | A Mulaba-Bafubiandi J Helsen A Maes G Langouche |
| Institution: | 1. Department Metaalkunde en Toegepaste Materiaalkunde K.U. Leuven, de Croylaan 2, B-3001, Heverlee, Belgi? 2. Laboratorium voor Colloidchemie, K.U. Leuven, Kardinaal Mercierlaan 92, B-3001, Heverlee, Belgi? 3. Instituut voor Kern- en Stralingsfysika, K.U. Leuven, Celestijnenlaan 200D, B-3001, Heverlee, Belgi? |
| Abstract: | Reduced charge Camp-Berteau Montmorillonites (R.C.M.) have been studied. The Cation Exchange Capacity (C.E.C.) resulting from these samples with different Li/Na ratios decreased linearly from the original value of about 1 meq/g to 0.6 meq/g. Diffused Li+ ended in octahedral layer nearby Mg2+. Iron was as Fe3+ and mainly in octahedral sites. A small additional quantity of tetrahedral configuration was detected. Only minor modifications on Mössbauer parameters of R.C.M. samples were observed as a consequence of charge reduction. |
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