Abstract:

PVP/Zn(CH3COO)2 composite nanofibers were prepared by electrospinning, and then subjected to high temperature sintering to obtain ZnO nanofibers. Thermal gravimetric analysis, X-ray energy dispersive spectroscopy, fourier transform infrared spectroscopy, X-ray diffraction and field-emission scanning electron microscope were used to characterize the purity, crystal form, and morphology of the fibers before and after sintering. Experiments were carried out using methylene blue(MB) as the pollutant object to evaluate the photocatalytic activity of ZnO nanofibers. The effects of the UV irradiation time and the sintering temperature on the degree of photocatalytic degradation were investigated. Compared to ZnO nanoparticles, it is shown that ZnO nanofibers have good photocatalytic properties and reuse performance.