Cation exchange dynamics confined in a synthetic clay mineral
G. Grassi, L. Michels, Z. Rozynek, M. A. S. Altoé, E. C. dos Santos, C. L. S. da Fonseca, Droppa Jr. R., A. Gholamipour-Shirazi, J. O. Fossum, G. J. da Silva
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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...
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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
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Cation exchange dynamics confined in a synthetic clay mineral
G. Grassi, L. Michels, Z. Rozynek, M. A. S. Altoé, E. C. dos Santos, C. L. S. da Fonseca, Droppa Jr. R., A. Gholamipour-Shirazi, J. O. Fossum, G. J. da Silva
Cation exchange dynamics confined in a synthetic clay mineral
G. Grassi, L. Michels, Z. Rozynek, M. A. S. Altoé, E. C. dos Santos, C. L. S. da Fonseca, Droppa Jr. R., A. Gholamipour-Shirazi, J. O. Fossum, G. J. da Silva
Fontes
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The european physical journal. Special topics Vol. 223 (2014), p. 1883-1893 |