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|Title:||Cation exchange dynamics confined in a synthetic clay mineral|
Altoé, M. A. S.
dos Santos, E. C.
da Fonseca, C. L. S.
Droppa Jr., R.,
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|
|Appears in Collections:||CCSNano - Artigos e Outros Documentos|
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