New, fast and green procedure for the synthesis of gold nanoparticles based on sonocatalysis
New, fast and green procedure for the synthesis of gold nanoparticles based on sonocatalysis
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DOI：
10.1016/j.ultsonch.2010.10.009
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发表时间：
2011-05-01
影响因子：
8.4
通讯作者：
Palacios-Santander, J. M.
中科院分区：
文献类型：
--
作者：
Cubillana-Aguilera, L. M.;Franco-Romano, M.;Palacios-Santander, J. M.
一种简单、廉价且绿色的合成路线，使用高功率超声波和二水柠檬酸钠作为无毒还原剂和稳定剂，在水溶液中和环境条件下生产金纳米颗粒。合成所需时间为5.5分钟。通过该途径获得的球形纳米颗粒显示出均匀的尺寸分布，在5-17 nm范围内，平均直径为10 1 nm。而且，90%的颗粒直径在7至13纳米之间，半衰期超过30天。按照这种路线合成的金纳米颗粒被称为声纳米颗粒。金声纳米颗粒已通过 TEM 和 XRD 进行表征，并通过紫外-可见光谱研究了其稳定性。比较替代的实验设计以优化所提出的合成程序。 (C) 2010 Elsevier B.V. 保留所有权利。
An easy, cheap and green synthetic route, using high-power ultrasounds and sodium citrate dihydrate as non-toxic reducing and stabilizer agent, produces gold nanoparticles in aqueous solution, and at ambient conditions. The time required for the synthesis is 5.5 min. The spherical nanoparticles obtained by this route show a homogeneous size distribution, within the range 5-17 nm, with an average diameter of 10 1 nm. Moreover, 90% of the particles have a diameter ranging from 7 to 13 nm, and their half-life is more than 30 days. The gold nanoparticles synthesized following this route are known as sononanoparticles. Gold sononanoparticles have been characterized by TEM and XRD and their stability has been studied by UV-Vis spectroscopy. Alternative experimental designs are compared to optimize the proposed synthesis procedure. (C) 2010 Elsevier B.V. All rights reserved.