Synthesis and characterisation of carboxylate-terminated silica nanohybrid powders and thin films

G Arrachart; I Karatchevtseva; D J Cassidy; G Triani; John R Bartlett; M W C Man

doi:10.1039/B803100B

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Synthesis and characterisation of carboxylate-terminated silica nanohybrid powders and thin films

Journal article

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Synthesis and characterisation of carboxylate-terminated silica nanohybrid powders and thin films

G Arrachart, I Karatchevtseva, D J Cassidy, G Triani, John R Bartlett and M W C Man

Journal of Materials Chemistry, Vol.18(31), pp.3643-3649

2008

DOI: https://doi.org/10.1039/B803100B

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Abstract

Novel organic-inorganic hybrid materials, in the form of bulk materials (powders) and thin films, exhibiting carboxylate functionality have been prepared by sol-gel co-condensation of 11-(triethoxysilyl)methylundecanoate with tetraethoxysilane (TEOS), followed by chemical treatment with AlI3 to convert the ester moieties into terminal carboxylic acid sites. Uniform nanostructured thin films were prepared by spin-coating on silicon wafers. Both powders and thin films were used to study the uptake behaviour of lanthanide cations, such as Eu3+ or La3+ from aqueous solutions. It has been shown that the uptake capacity (mg g-1) of the films is 3-4 times higher than that of bulk (powder) materials. This has been attributed to the larger number of accessible COO- groups in the thin film form compared with the bulk material.

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Title: Synthesis and characterisation of carboxylate-terminated silica nanohybrid powders and thin films
Authors: G Arrachart (Author) - Australian Nuclear Science and Technology Organisation Materials Department
I Karatchevtseva (Author) - Australian Nuclear Science and Technology Organisation Materials Department
D J Cassidy (Author) - Australian Nuclear Science and Technology Organisation Materials Department
G Triani (Author) - Australian Nuclear Science and Technology Organisation Materials Department
John R Bartlett (Author) - University of Western Sydney
M W C Man (Author) - Architectures Moléculaires et Matériaux Nanostructurés ICG Montpellier, France
Publication details: Journal of Materials Chemistry, Vol.18(31), pp.3643-3649
Publisher: Royal Society of Chemistry (R S C) Publications
Date published: 2008
DOI: 10.1039/B803100B
ISSN: 0959-9428
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99448994502621
Output Type: Journal article

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