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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 2/2013

01.05.2013 | Original Paper

Ag+/MPTMS/PMHS-mediated two-step acid–base synthesis of hybrid materials with embedded nanosilver

verfasst von: Xu Shao, Shang-Ru Zhai, Bin Zhai, Qing-Da An

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 2/2013

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Abstract

A newly designed two-step acid–base sol–gel method for the synthesis of Ag-doped hybrid materials with tailored physicochemical properties is presented. In the proposed protocol, Ag+ is in situ reduced by Si–H bonds of polymethylhydrosiloxane (PMHS) in the absence of an additional reductant. Hydrolysis of the alkyloxysilane groups of tetraethoxysilane and PMHS or 3-mercaptopropyltrimethoxysilane (MPTMS) can be promoted by the release of H+ due to complexation between Ag+/Ag0 and thiol groups. Newly formed nanosilver can be fully stabilized by a sol–gel reaction and embedded parallel to the skeletons. The MPTMS dosage used during synthesis has a significant impact on the textural characteristics of the final products. The properties of as-prepared materials are characterized by Brunauer-Emmett-Teller analysis, transmission electron microscopy, and X-ray photoelectron spectroscopy. This study presents a novel method for the synthesis of Ag-doped hybrid materials using the synergetic effects of common organosilane precursors.
Vorheriger Artikel Hybrid sol–gel based coatings for the protection of historical window glass
Nächster Artikel Characterization of anti-reflective and self-cleaning SiO2–TiO2 composite film

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Metadaten
Titel
Ag+/MPTMS/PMHS-mediated two-step acid–base synthesis of hybrid materials with embedded nanosilver
verfasst von
Xu Shao
Shang-Ru Zhai
Bin Zhai
Qing-Da An
Publikationsdatum
01.05.2013
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 2/2013
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-013-3003-z

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