期刊
APPLIED SURFACE SCIENCE
卷 253, 期 13, 页码 5633-5639出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2006.12.095
关键词
pillared clays; adsorption; small angle neutron scattering; fractal dimension
Small angle neutron scattering (SANS) and its contrast-matching variant are employed in order to determine structural properties (inter-pillar distances and mass/surface fractal dimensions of the clay layers and pillars) of a series of smectite natural clays (montmorillonite, beidellite, and bentonite) and their pillared and pillared/ion-exchanged analogues. Moreover, a comparative analysis with the adsorption data is carried out on the basis of a systematic study of the structural changes induced by a particular treatnient or modification (e.g. pillaring) of the clay systems. (C) 2007 Elsevier B.V. All rights reserved.
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