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Fabrication and characterization of Ag/calcium silicate core-shell nanocomposites
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Materials Chemistry, Structural Chemistry.
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2011 (English)In: Materials letters (General ed.), ISSN 0167-577X, E-ISSN 1873-4979, Vol. 65, no 19-20, 3069-3071 p.Article in journal (Refereed) Published
Abstract [en]

The Ag/calcium silicate nanocomposite with core-shell nanostructure has been successfully synthesized using Ag solution, Ca(NO(3))(2)center dot 4H(2)O and Na(2)SiO(3)center dot 9H(2)O in ethanol/water mixed solvents at room temperature for 48 h. Ag solution was previously prepared by microwave-assisted method in ethylene glycol (EG) at 150 degrees C for 10 min. The nanocomposites consisted of Ag core and an amorphous calcium silicate shell. The XRD and EDS results confirmed that the product was the Ag/calcium silicate nanocomposite. The TEM micrographs indicated that the Ag/calcium silicate nanocomposite was core-shell nanoparticles. The effects of Ca (NO(3))(2)center dot 4H(2)O and Na(2)SiO(3)center dot 9H(2)O concentration on the shells of Ag/calcium silicate nanocomposite were investigated. The products were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and energy-dispersive X-ray spectra (EDS). This method is simple, fast and may be extended to the synthesis of the other kinds of core-shell nanocomposites.

Place, publisher, year, edition, pages
2011. Vol. 65, no 19-20, 3069-3071 p.
Keyword [en]
Microstructure, Nanomaterials, Ag, Calcium silicate, Core-shell
National Category
Natural Sciences Inorganic Chemistry
Research subject
Chemistry with specialization in Inorganic Chemistry
URN: urn:nbn:se:uu:diva-160122DOI: 10.1016/j.matlet.2011.06.103ISI: 000295068300063OAI: oai:DiVA.org:uu-160122DiVA: diva2:448636
Available from: 2011-10-17 Created: 2011-10-17 Last updated: 2011-11-29Bibliographically approved

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Zhu, Jie-Fang
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