A simple method to synthesize triangular silver nanoparticles by light irradiation
A simple method to synthesize triangular silver nanoparticles by light irradiation
复制标题
光照射合成三角形银纳米颗粒的简单方法
DOI：
10.1016/j.saa.2005.09.004
复制
发表时间：
2006-07-01
影响因子：
4.4
通讯作者：
Zhao, Bing
中科院分区：
文献类型：
--
作者：
Ha, Huiying;Xu, Weiqing;Zhao, Bing
我们描述了一种简单的方法，通过柠檬酸盐光还原银离子来合成三角形纳米银。与以前的光诱导方法相比，本方法的一个值得注意的区别是，在没有软模板或聚合物导向剂的情况下，可以实现对纳米颗粒的良好形状控制。用紫外可见光谱和透射电子显微镜研究了银纳米粒子的形成过程。研究发现，反应物浓度对制备的银纳米粒子的形貌控制起着重要作用。作为这些纳米粒子的应用之一，它们被用作表面增强拉曼散射衬底，并以1，4-双[2-(4-吡啶)乙烯基]苯(BVPP)作为拉曼探针来评价三角银纳米粒子的增强能力。(C)2005 Elsevier B.V.保留所有权利。
We describe a simple method to synthesize triangular silver nanoparticles by photoreducing the silver ions by citrate. A noteworthy difference of the present method as compared with the previous photo-induced methods is that good shape control over the nanoparticles can be realized in the absence of soft templates or polymer directing agents. The formation process of the silver nanoparticles was investigated by UV-vis spectroscopy and transmission electron microscopy (TEM). It was found that the concentration of reactant plays important role in the morphology control of produced silver nanoparticles. As one of the applications of these nanoparticles, they were used as surface-enhanced Raman scattering substrates and 1,4-bis[2-(4-pyridyl)ethenyl]-benzene (BVPP) was used as a Raman probe to evaluate the enhancement ability of the triangular silver nanoparticles. (c) 2005 Elsevier B.V. All rights reserved.