In this study, nanofibrous polypyrrole-coated TiO2/SiO2 （PPy@TS） membranes were fabricated by a combination of sol-gel process, electrospinning, calcination, and in situ polymerization. Samples from the electrospinn...In this study, nanofibrous polypyrrole-coated TiO2/SiO2 （PPy@TS） membranes were fabricated by a combination of sol-gel process, electrospinning, calcination, and in situ polymerization. Samples from the electrospinning, calcination, and in situ polymerization steps were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectrosco- py, and thermogravimetry. The in situ polymerization of PPy is aimed to enhance the overall photocatalytic capability of TiO2 in the TiO2/SiO2 composite fibers. Results of the photocatalytic degradation tests demonstrated that the PPy@TS composites possess enhanced photocatalytic activity for the degradation of methyl orange.展开更多
基金supported by National Natural Science Foundation of China(No.51503083)the Fundamental Research Funds for the Central Universities(No. JUSRP51723B)the National Hightech R&D Program of China (No. 2016YFB0302901)
文摘In this study, nanofibrous polypyrrole-coated TiO2/SiO2 （PPy@TS） membranes were fabricated by a combination of sol-gel process, electrospinning, calcination, and in situ polymerization. Samples from the electrospinning, calcination, and in situ polymerization steps were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectrosco- py, and thermogravimetry. The in situ polymerization of PPy is aimed to enhance the overall photocatalytic capability of TiO2 in the TiO2/SiO2 composite fibers. Results of the photocatalytic degradation tests demonstrated that the PPy@TS composites possess enhanced photocatalytic activity for the degradation of methyl orange.
