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Gold–Silver alloy nanoparticles were synthesized by microwave assisted redution and polyol reactions, where trisodium citrate (TSC) and poly vinyl pyrollidone (PVP, Mn=1,000,000) played as protective agents, process includes two steps: (i) first, gold nanoparticles were synthesized, (ii) then silver nanoparticles were developed on gold nanoparticles surfaces to form alloy nanoscale. The results of the analysis from UV-Vis, XRD, TEM spectrums showed that gold – silver alloy nanoparticles mostly had core–shell structure and gold was proposed as the core. The particle size of alloy nanoparticles was 30–35 nm, and developed if the amount of silver has increased. UV-Vis spectrum showed this solution has a shoulder peak beside maximum absorbent peak. Trisodium citrate kept an important role to form gold–silver alloy nanoparticles in ethylene glycol.

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Issue: Vol 19 No 4 (2016)
Page No.: 144-152
Published: Dec 31, 2016
Section: Natural Sciences - Research article

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Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Mai, A., Nguyen, A., Tran, K., Hoang, D., & Nguyen, P. (2016). Synthesis and characterization of gold – silver alloy nanoparticles. VNUHCM Journal of Science and Technology Development, 19(4), 144-152.

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