Nature factory of silver nanowires: Plant-mediated synthesis using broth of Cassia fistula leaf

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• 作者：Liqin Lin ; Wenta Wang ; Jiale Huang ; Qingbiao Li ; Daohua Sun ; Xin Yang ; Huixuan Wang ; Ning He ; Yuanpeng Wang
• 关键词：Green synthesis ; Nanowires ; Cassia fistula leaf ; Silver
• 刊名：Chemical Engineering Journal
• 出版年：2010
• 出版时间：15 August 2010
• 年：2010
• 卷：162
• 期：2
• 页码：852-858
• 全文大小：661 K

文摘

In this paper, we demonstrated a green protocol in which silver nanowires with diameters in the range of 50–60 nm and lengths up to tens of micrometers were synthesized with extract of the Cassia fistula leaf as reductant and capping agent at room temperature. Different techniques such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and UV–vis spectroscopy were employed to characterize the nanowires. Particularly, TEM images recorded at intervals revealed that the resulting silver nanowires evolved from spherical nanoparticles via one-dimensional aggregation. The results also showed that reaction temperature played a crucial role in the formation of silver nanowires.