Direct growth of silver nanostructures on zinc substrate by a modified galvanic displacement reaction

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• 作者：Sa Lv ; Hui Suo ; Xu Zhao ; Chunxu Wang ; Shengyu Jing ; Tieli Zhou ; Yanan Xu ; Chun Zhao
• 关键词：A. Metals ; A. Nanostructures ; E. Galvanic displacement
• 刊名：Solid State Communications
• 出版年：2009
• 出版时间：November 2009
• 年：2009
• 卷：149
• 期：41-42
• 页码：1755-1759
• 全文大小：5052 K

文摘

This paper reports a modified galvanic displacement approach for the synthesis of Ag nanostructures with different morphologies. During the process, AgNO₃ as starting material is reduced using zinc foil and this is followed by suitable thermal treatment. The reaction time, concentration of the AgNO₃ aqueous solutions and thermal treatment temperature directly influence the morphologies of Ag nanostructures. X-ray diffraction (XRD), field emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), and UV–visible spectra are used to characterize the products obtained. Furthermore, a representative experiment using rhodamine (R6G) as the probe molecule confirms that the Ag nanostructure shows strong surface-enhanced Raman scattering (SERS) activity.