Identification of Multiple Cs+ Adsorption Sites in a Hydroxy-interlayered Vermiculite-like Layered Silicate through 133Cs MAS NMR Analysis

Masataka Tansho; Kenji Tamura; Tadashi Shimizu

doi:10.1246/cl.160850

論文 Identification of Multiple Cs+ Adsorption Sites in a Hydroxy-interlayered Vermiculite-like Layered Silicate through 133Cs MAS NMR Analysis

Masataka Tansho (National Institute for Materials Science) ; Kenji Tamura (National Institute for Materials Science) ; Tadashi Shimizu (National Institute for Materials Science)

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Masataka Tansho, Kenji Tamura, Tadashi Shimizu. Identification of Multiple Cs+ Adsorption Sites in a Hydroxy-interlayered Vermiculite-like Layered Silicate through 133Cs MAS NMR Analysis. Chemistry Letters. 2016, (), 1385-1387. https://doi.org/10.1246/cl.160850

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(abstract)

133Cs magic angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy revealed two Cs sites in Csadsorbed aluminium altered phlogopite (Cs Al-Phl), but only one site for Cs-adsorbed magnesium altered phlogopite (Cs Mg-Phl). Cesium ions in hydroxyl interlayered vermiculitelike
layered silicate reside at sites in both mica zones and in interlayer wedge zones of Al-Phl. It is likely that chemical exchange of Cs+ ions occurs between these two zones.

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