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首页> 外文期刊>Nanotechnology >Surface functionalization of electrospun PAN nanofibers with ZnO-Ag heterostructure nanoparticles: synthesis and antibacterial study
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Surface functionalization of electrospun PAN nanofibers with ZnO-Ag heterostructure nanoparticles: synthesis and antibacterial study

机译：用ZnO-Ag异质结构纳米粒子的电纺PAN纳米纤维表面官能化：合成和抗菌研究

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摘要

In this work, we have prepared polyacrylonitrile (PAN) polymer nanofibers by electrospinning method. The surface of the electrospun PAN nanofibers membrane has been functionalized with ZnO-Ag heterostructure nanoparticles by using three different chemical pathways such as reflux, blending, hydrothermal methods and accordingly the prepared composite nanofibers membranes were named as PAN/ZnO-Ag (R), PAN/ZnO-Ag (B) and PAN/ZnO-Ag (H) respectively. The obtained heterostructure nanoparticles functionalized PAN nanofibers membranes were characterized using ATR-FTIR, XRD, FESEM and TEM analytical techniques. From the FESEM and TEM images it was clearly observed that 20-30 nm size spherical nanoparticles have been decorated uniformly on the surface of PAN nanofibers. XRD study confirmed the formation of ZnO-Ag mixed/hybrid nanoparticles on PAN nanofibers surface. The ZnO-Ag heterostructure nanoparticles functionalized PAN nanofibers membranes were used for antibacterial application. It was observed from inhibition zone study that the ZnO-Ag heterostructure nanoparticles functionalized PAN nanofibers membrane shows excellent antibacterial properties towards both gram-negative Escherichia coli and gram-positive Micrococcus luteus bacteria than their single component counterparts. Thus this study demonstrated the simple and cost-effective approach to develop antibacterial functional membrane that has many potential applications in water and air filtration, protective mask, textile and packaging industries.
机译：在这项工作中，我们通过静电纺丝方法制备了聚丙烯腈（PAN）聚合物纳米纤维。通过使用三种不同的化学途径如回流，混合，水热方法，并因此将制备的复合纳米纤维膜（R）被赋予ZnO-Ag异质结构纳米颗粒的表面化用ZnO-Ag异质结构纳米颗粒。（制备的复合纳米纤维）被命名为PAN / ZnO-Ag（R），平移/ ZnO-Ag（b）和锅/ ZnO-Ag（h）。所得异质结构纳米颗粒官能化锅纳米纤维膜用ATR-FTIR，XRD，FESEM和TEM分析技术表征。从FESEM和TEM图像清楚地观察到，20-30nm尺寸的球形纳米颗粒已经在锅纳米纤维表面上均匀装饰。 XRD研究证实了在PAN纳米纤维表面上形成ZnO-Ag混合/杂化纳米颗粒。 ZnO-Ag异质结构纳米颗粒官能化PAN纳米纤维膜用于抗菌应用。从抑制区观察到ZnO-Ag异质结构纳米颗粒官能化锅纳米纤维膜具有朝向革兰氏阴性大肠杆菌和革兰氏阳性的微球菌的优异抗菌性能而不是其单个组分对应物。因此，本研究表明了一种简单且经济高效的方法，可以在水和空气过滤，防护面罩，纺织品和包装行业中具有许多潜在应用的抗菌功能膜。

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