Seed-Mediated Synthesis of Iron Oxide and Gold/Iron Oxide Nanoparticles
Authors: Nguyen, Dung The; Park, Dong-Wha; Kim, Kyo-Seon
Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 8, August 2011 , pp. 7214-7217(4)
Publisher: American Scientific Publishers
Abstract:In this study, we prepared magnetic iron oxide and gold/iron oxide nanoparticles (NPs) and characterized their morphologies and properties by XRD, TEM, EDX, VSM and UV-vis measurements. The magnetite iron oxide NPs of 10 nm were synthesized by coprecipitation of Fe2+ and Fe+3 in the solution of NH4OH and then they were used as seed particles for the subsequent growth to prepare the magnetite NPs of different particle sizes and also to prepare gold/iron oxide composite NPs. All those magnetite NPs are superparamagnetic and the gold/iron oxide composite NPs combine the optical and magnetic properties, which are contributed by gold and iron oxide components, respectively.
Document Type: Research Article
Publication date: 2011-08-01
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