Controlled synthesis of silver nanostructures stabilized by fluorescent polyarylene ether nitrile
Controlled synthesis of silver nanostructures stabilized by fluorescent polyarylene ether nitrile
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DOI：
10.1016/j.apsusc.2016.03.126
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发表时间：
2016-07-30
影响因子：
6.7
通讯作者：
Liu, Xiaobo
中科院分区：
文献类型：
--
作者：
Jia, Kun;Shou, Hongguo;Liu, Xiaobo
本工作首次探索了本征荧光聚亚芳基醚腈（PEN），实现了不同形貌的荧光银纳米结构的控制合成。具体来说，我们发现在 N,N-二甲基甲酰胺 (DMF) 中使用 PEN 作为还原剂和表面封端剂，可以有效地将硝酸银 (AgNO3) 还原为银纳米粒子。更有趣的是，使用1:8的相对PEN:AgNO3摩尔浓度比，通过简单改变130℃下的反应时间，可以将获得的荧光银纳米结构的形态从纳米球调整为纳米棒。同时，所获得的Ag纳米结构同时表现出局域表面等离子体共振（LSPR）带和420nm左右的荧光发射，这在生化传感和光学器件领域具有潜在的应用前景。 (C) 2016 Elsevier B.V. 保留所有权利。
In this work, the intrinsically fluorescent polyarylene ether nitrile (PEN) was explored to realize the controlled synthesis of fluorescent silver nanostructures with different morphology for the first time. Specifically, it was found that silver nitrate (AgNO3) can be effectively reduced to silver nanoparticles using PEN as both reducing and surface capping agents in N, N-dimethylformamide (DMF). More interestingly, the morphology of obtained fluorescent silver nanostructures can be tuned from nanospheres to nanorods by simple variation of reaction time at 130 C using a relative PEN:AgNO3 molar concentration ratio of 1:8. Meanwhile, the obtained Ag nanostructures exhibited both localized surface plasmon resonance (LSPR) band and fluorescent emission around 420nm, which would find potential applications in biochemical sensing and optical devices fields. (C) 2016 Elsevier B.V. All rights reserved.