MECHANISM OF SILICA NANO-PLATE FORMATION FROM LUCENTITE

N. H. Tran (), M. A. Wilson, A. S. Milev, G. R. Dennis and G. S. K. Kannangara
Additional contact information
N. H. Tran: College of Health and Science, University of Western Sydney, Locked Bag 1797, Penrith South DC 1797, Australia
M. A. Wilson: College of Health and Science, University of Western Sydney, Locked Bag 1797, Penrith South DC 1797, Australia
A. S. Milev: College of Health and Science, University of Western Sydney, Locked Bag 1797, Penrith South DC 1797, Australia
G. R. Dennis: College of Health and Science, University of Western Sydney, Locked Bag 1797, Penrith South DC 1797, Australia
G. S. K. Kannangara: College of Health and Science, University of Western Sydney, Locked Bag 1797, Penrith South DC 1797, Australia

Surface Review and Letters (SRL), 2007, vol. 14, issue 02, 235-239

Abstract: The mechanism of formation of silica nano-plates by exfoliation of a phyllosilicate magnesium containing clay, Lucentite, in an aqueous solution of poly(acrylic acid) has been studied. Fourier transform infrared spectroscopy andMgK-edge near edge X-ray adsorption fine structure (NEXAFS) analysis shows that non-surface (bulk)Mgions were not chemically involved in the poly(acrylic acid)/clay intercalation, but were substantially involved in the exfoliation resulting in the silica nano-plates. During intercalation,OK-edge NEXAFS shows that surface defects were formed which represent additional structural branches on the surface. During exfoliation, these increased significantly.SiL3,2-edge NEXAFS measurements shows that this occurred by migration ofSiO4groups within the exfoliated silica plates.

Keywords: Phyllosilicate clay; Lucentite; silica nano-plate; intercalation; exfoliation; Fourier transform infrared spectroscopy; near edge X-ray adsorption fine structure (search for similar items in EconPapers)
Date: 2007
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X07009311
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:14:y:2007:i:02:n:s0218625x07009311

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X07009311

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().