writer：Lu XF, Li LL, Zhang WJ, Wang C
keywords：NANOFIBERS; FABRICATION; CHEMISTRY; FILMS
source：期刊
specific source：NANOTECHNOLOGY
Issue time：2005年
Polyvinylpyrrolidone (PVP)/Ag2S composite fibres were successfully prepared by a facile method called the electrospinning technique. Scanning electron microscopy analysis revealed the fibre morphology of the composite. Transmission electron microscopy showed spherical nanoparticles of the Ag2S component with an average particle size of about 15 nm and a good dispersion. X-ray diffraction results showed that a pure beta-Ag2S phase was obtained in the PVP fibres. X-ray photoelectron spectra (XPS) proved that the Ag and S elements exist in PVP/Ag2S composite fibres and quantitative analysis of the XPS showed that the atomic ratio of silver and sulfur was about 2. Fourier transform infrared and ultraviolet-visible spectroscopy were used to characterize the structure of the PVP/Ag2S composite fibres.