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首页> 外文期刊>Synthetic Metals >Sensing of silver ions by nanotubular polyaniline film deposited on quartz-crystal in a microbalance
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Sensing of silver ions by nanotubular polyaniline film deposited on quartz-crystal in a microbalance

机译：微量天平上沉积在石英晶体上的纳米管聚苯胺膜对银离子的感测

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摘要

Nanotubular polyaniline film was deposited onto the electrode of the quartz-crystal microbalance (QCM). The film in the form of emeraldine base was exposed to a solution of silver nitrate. The reduction for silver ions took place and silver nanoparticles were produced at the film surface. The deposition of silver was monitored by using the QCM and the UV-vis spectroscopy. The morphology of the film before and after the silver deposition was studied by the scanning and transmission electron microscopy. Silver nanoparticles had sizes of about 50-120nm and globular and triangular shape. X-ray diffraction and infrared spectroscopy were used to characterize the structure of the composite. The present approach could be used for noble-metal recovery in waste waters.
机译：将纳米管聚苯胺膜沉积到石英晶体微量天平（QCM）的电极上。将绿宝石碱形式的膜暴露于硝酸银溶液中。发生银离子的还原，并且在膜表面产生银纳米颗粒。通过使用QCM和紫外可见光谱法监测银的沉积。通过扫描和透射电子显微镜研究了在沉积银之前和之后的膜的形态。银纳米颗粒具有约50-120nm的尺寸以及球形和三角形形状。 X射线衍射和红外光谱用于表征复合材料的结构。本方法可用于废水中的贵金属回收。

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