Green synthesis of Au–Pd bimetallic nanoparticles: Single-step bioreduction method with plant extract
Green synthesis of Au–Pd bimetallic nanoparticles: Single-step bioreduction method with plant extract
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DOI：
10.1016/j.matlet.2011.06.079
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发表时间：
2011-06
影响因子：
3
通讯作者：
Guowu Zhan;Jiale Huang;Mingming Du;Ibrahim Abdul-Rauf;Yao Ma;Qingbiao Li
中科院分区：
文献类型：
--
作者：
Guowu Zhan;Jiale Huang;Mingming Du;Ibrahim Abdul-Rauf;Yao Ma;Qingbiao Li
基于侧柏叶提取物在水溶液中同时生物还原Au（III）和Pd（II）前驱体，发展了一种制备Au-Pd纳米粒子（~ 7 nm）的简便、环保的方法。借助透射电子显微镜、选区电子衍射、紫外-可见光谱、X射线衍射和能量色散X射线光谱对产物的形貌、结构和尺寸进行了表征。傅立叶变换红外光谱分析结果表明，植物提取物中的CO和CO基团在纳米颗粒的包覆中起着关键作用。重要的是，该方法可以被描述为纯“绿色化学”技术，因为没有使用额外的合成试剂作为还原剂或稳定剂。
A facile and eco-friendly method for the preparation of Au–Pd bimetallic nanoparticles (~7nm) has been developed based on simultaneous bioreduction of Au(III) and Pd(II) precursors with Cacumen Platycladi leaf extract in aqueous environment. The morphology, structure, and size were confirmed with the aid of transmission electron microscopy, selected area electron diffraction, UV–vis spectroscopy, X-ray diffraction, and energy dispersive X-ray spectroscopy. The results from Fourier transform infrared spectroscopy showed that the CO and CO groups in the plant extract played a critical role in capping the nanoparticles. Importantly, the process can be described as pure “green chemistry” technique since no additional synthetic reagents are used as reductants or stabilizers.