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Type: Artigo
Title: Cation exchange dynamics confined in a synthetic clay mineral
Author: Grassi, G.
Michels, L.
Rozynek, Z.
Altoé, M. A. S.
dos Santos, E. C.
da Fonseca, C. L. S.
Droppa Jr., R.,
Gholamipour-Shirazi, A.
Fossum, J. O.
da Silva, G. J.
Abstract: In this work we report X-Ray Diffraction (XRD) and Energy Dispersive X-Ray Spectroscopy (EDS) measurements to investigate the confined cation exchange process in saline aqueous suspensions of a synthetic clay mineral from Lithium-Fluorohectorite to Nickel-Fluorohectorite, as well as the reverse process from Nickel-Fluorohectorite to Lithium-Fluorohectorite and also from Lithium-Fluorohectorite to Sodium-Fluorohectorite. The dynamics of these cation exchanges was followed and it was observed that these processes can be faster than 1 minute. The results are compared to the observations on samples prepared by cation exchange procedures for which the exchange process was performed on the time-scale of months
Subject: Minerais de argila
Country: Alemanha
Editor: Springer
Rights: Fechado
Identifier DOI: 10.1140/epjst/e2014-02233-8
Date Issue: 2014
Appears in Collections:CCSNano - Artigos e Outros Documentos

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