| 范洪臣,辛嘉英,王艳,夏春谷.甲烷氧化菌素介导一步法合成合成纳米银[J].分子催化,2016,30(3):276-281 |
| 甲烷氧化菌素介导一步法合成合成纳米银 |
| Methanobactin-Mediated One-Step Synthesis of Silver Nanoparticles |
| 投稿时间：2016-04-11 修订日期：2016-04-26 |
| DOI： |
| 中文关键词: 甲烷氧化菌素 纳米银粒子 一步法合成 |
| 英文关键词:Silver nanoparticles, Methanobactin, One-step |
| 基金项目:The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan) |
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| 中文摘要: |
| 以硝酸银为前体物，甲烷氧化菌素（Mb）将Ag(Ⅰ)还原Ag(0)，并形成纳米银粒子（AgNPs），同时Mb吸附在形成的AgNPs表面，起到保护剂作用避免AgNPs聚集沉淀。采用紫外-可见光谱、荧光光谱、红外光谱、透射电镜和X射线电子能谱等对合成的AgNPs粒子过程、Mb合成AgNPs官能团、AgNPs形貌和AgNPs结构及价态等进行了分析。结果表明Mb可以一步法合成AgNPs离子。 |
| 英文摘要: |
| Silver nanoparticles (AgNPs) were prepared by reduction method in which silver nitrate was taken as the metal precursor and Methanobactin(Mb) was principally responsible for the catalyzed reduction of Ag(Ⅰ) to Ag(0) and the stabilization of AgNPs. UV–vis spectroscopy, Fluorescent spectra, Fourier transform infrared, Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy were used to characterize the synthetic AgNPs. The formations of the AgNPs were monitored using UV–Vis absorption spectroscopy. Functional groups in Mb were located using Fluorescent spectra and Fourier transform infrared. The spherical morphology and size of the AgNPs were confirmed using TEM. XPS was used to study the elemental valence of AgNPs . A mechanism for the formation of AgNPs was proposed in the presence of Mb. Moreover, the size of the resultant AgNPs could be easily tuned by changing the ratio of Mb to silver nitrate. |
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