Cation exchange dynamics confined in a synthetic clay mineral

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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
Address:	https://link.springer.com/article/10.1140%2Fepjst%2Fe2014-02233-8
Date Issue:	2014
Appears in Collections:	CCSNano - Artigos e Outros Documentos

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