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Materials 2015, 8(6), 2849-2862; doi:10.3390/ma8062849

Application of Turkevich Method for Gold Nanoparticles Synthesis to Fabrication of SiO2@Au and TiO2@Au Core-Shell Nanostructures

Institute of Optoelectronics, Military University of Technology, Warsaw 00-908, Poland
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Author to whom correspondence should be addressed.
Academic Editor: Gururaj V. Naik
Received: 20 April 2015 / Revised: 19 May 2015 / Accepted: 19 May 2015 / Published: 26 May 2015
(This article belongs to the Special Issue Plasmonic Materials)
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Abstract

The Turkevich synthesis method of Au nanoparticles (AuNPs) was adopted for direct fabrication of SiO2@Au and TiO2@Au core-shell nanostructures. In this method, chloroauric acid was reduced with trisodium citrate in the presence of amine-functionalized silica or titania submicroparticles. Core-shells obtained in this way were compared to structures fabricated by mixing of Turkevich AuNPs with amine-functionalized silica or titania submicroparticles. It was found that by modification of reaction conditions of the first method, such as temperature and concentration of reagents, control over gold coverage on silicon dioxide particles has been achieved. Described method under certain conditions allows fabrication of semicontinuous gold films on the surface of silicon dioxide particles. To the best of our knowledge, this is the first report describing use of Turkevich method to direct fabrication of TiO2@Au core-shell nanostructures. View Full-Text
Keywords: SiO2@Au; TiO2@Au; core-shell nanostructures; Au nanoparticles; Turkevich Method SiO2@Au; TiO2@Au; core-shell nanostructures; Au nanoparticles; Turkevich Method
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Dobrowolska, P.; Krajewska, A.; Gajda-Rączka, M.; Bartosewicz, B.; Nyga, P.; Jankiewicz, B.J. Application of Turkevich Method for Gold Nanoparticles Synthesis to Fabrication of SiO2@Au and TiO2@Au Core-Shell Nanostructures. Materials 2015, 8, 2849-2862.

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