Pillared Clays

Poncelet, Georges; Fripiat, J. J.

doi:10.1002/9783527610044.hetcat0012

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2012

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“…An important property of smectite clay minerals is their ability to adsorb water in large amounts in their interlayer space, thereby resulting in a size expansion of several times their initial thickness. This process is known as clay swelling and plays a key role in various processes such as in mud-rock drilling for oil and gas production. , …”

Section: Introductionmentioning

confidence: 99%

Adsorption ofl-DOPA Intercalated in Hydrated Na-Saponite Clay: A Combined Experimental and Theoretical Study

Adraa¹,

Timón

Lambert³

et al. 2012

J. Phys. Chem. C

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The intercalation of L-DOPA into the interlayer space of saponite, a 2:1 phyllosilicate, and the nature of host−guest interactions are investigated by a combined experimental and theoretical approach. L-DOPA zwitterions are accommodated vertically in the interlayer region as a bilayer of partially interdigitated species. The hydration state of the nanocomposite as well as the interaction geometry of L-DOPA molecules in the clay interlayer, are determined by periodic DFT calculations and found to be in agreement with experimentally obtained data. New insights into the transport properties for biomolecules in saponite are discussed.

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Section: Introductionmentioning

confidence: 99%