Silver nanoparticles grown on the surface of PAN nanofiber: Preparation, characterization and catalytic performance
Silver nanoparticles grown on the surface of PAN nanofiber: Preparation, characterization and catalytic performance
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DOI：
10.1016/j.colsurfa.2010.03.038
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发表时间：
2010-06-05
影响因子：
5.2
通讯作者：
Li, Yaoxian
中科院分区：
文献类型：
--
作者：
Zhang, Chaoqun;Yang, Qingbiao;Li, Yaoxian
设计了一种基于静电纺丝的便捷途径来制备银/聚丙烯腈（Ag/PAN）复合纳米纤维膜。通过螯合作用，尺寸均匀的银纳米粒子（Ag NPs）良好地分散在PAN纳米纤维（PANNF）表面。这种方法将有利于防止银纳米粒子聚集，这是确定其催化性能的最重要的事情之一。另一个优点是所制备的复合纳米纤维膜极易催化剂回收。通过紫外-可见（UV-vis）光谱跟踪Ag/PAN复合纳米纤维膜的催化活性。傅里叶变换红外光谱（FTIR）揭示了官能团。场发射扫描电子显微镜（FESEM）和透射电子显微镜（TEM）直接证明Ag NPs均匀分散在PANNF表面。 X射线粉末衍射(XRD)表明存在晶体Ag。 X射线光电子能谱(XPS)证实表面修饰的PANNF与Ag离子之间存在化学键和相互作用。 (C) 2010 Elsevier B.V. 保留所有权利。
A convenient route, based on electrospinning is designed for the preparation of silver/polyacrylonitrile (Ag/PAN) composite nanofiber film. Ag nanoparticles (Ag NPs) with uniform size were well dispersed on the surface of the PAN nanofiber (PANNF) through chelating effect. This method will be propitious to prevent Ag NPs from aggregation which is one of the most important things for defining their catalytic performance. Another advantage is that the prepared composite nanofiber film is extremely easy for catalyst recycling. The catalytic activity of Ag/PAN composite nanofiber film was tracked by ultraviolet-visible (UV-vis) spectroscopy. Fourier transform infrared spectroscopy (FTIR) revealed the functional groups. Field-emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) gave direct evidence that Ag NPs have dispersed on the surface of PANNF homogeneously. X-ray powder diffraction (XRD) showed the presence of crystal Ag. X-ray photoelectron spectra (XPS) confirmed that there were chemical bonds and interaction between surface modified PANNF and Ag ions. (C) 2010 Elsevier B.V. All rights reserved.