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A convenient route to polyvinyl pyrrolidone/silver nanocomposite by electrospinning

机译：通过静电纺丝制备聚乙烯吡咯烷酮/银纳米复合材料的便捷途径

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摘要

Silver nanoparticles prepared through reduction of AgNO3 by ethanol under refluxing conditions in polyvinyl pyrrolidone (PVP) ethanol solution were dispersed into PVP nanofibre film by electrospinning. The optical properties of Ag nanoparticles in PVP ethanol solution were measured by ultraviolet - visible (UV - vis) spectroscopy. The presence of face-centred cubic (fcc) crystalline silver embedded in PVP nanofibre film was indicated by the x-ray diffractometer (XRD) pattern. The morphology and distribution of silver nanoparticles in PVP nanofibres were observed by transmission electron microscopy (TEM). The interaction between PVP and Ag nanoparticles was confirmed by the x-ray photoelectron spectrum (XPS). In addition, Ag/PVP nanocomposite film was characterized by the surface enhanced Raman scattering (SERS) spectrum.
机译：通过在聚乙烯吡咯烷酮（PVP）乙醇溶液中在回流条件下用乙醇还原AgNO3制备的银纳米颗粒通过电纺丝分散到PVP纳米纤维薄膜中。通过紫外-可见（UV-vis）光谱法测量了PVP乙醇溶液中Ag纳米颗粒的光学性质。通过X射线衍射仪（XRD）指示了嵌入PVP纳米纤维薄膜中的面心立方（fcc）晶体银的存在。通过透射电子显微镜（TEM）观察了PVP纳米纤维中银纳米颗粒的形态和分布。 X射线光电子能谱（XPS）证实了PVP与Ag纳米颗粒之间的相互作用。此外，Ag / PVP纳米复合膜的特征在于表面增强拉曼散射（SERS）光谱。

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