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Silver nanoparticles prepared through reduction of AgNO 3 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.
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Wang et al. (2006) studied this question.
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