期刊
MATERIALS RESEARCH EXPRESS
卷 9, 期 2, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/2053-1591/ac5195
关键词
photocatalyst; polypyrrole; magnetic nanoparticles; core-shell; titanium dioxide
资金
- Department of electricity, Kim Chaek University of Technology, Pyongyang (D.P.R.Korea)
A polypyrrole-modified Fe3O4/SiO2/TiO2 composite material was successfully synthesized on the FST surface by in situ polymerization of pyrrole. The structural, morphological and magnetic response were characterized, and the catalytic activity of the material was evaluated. The results showed that FST/PPy exhibited excellent photocatalytic activity and the degradation rate was significantly improved under visible light. Furthermore, the photocatalyst could be easily recycled using a magnet.
A polypyrrole-modified Fe3O4/SiO2/TiO2 composite material was successfully synthesized on the FST surface by in situ polymerization of pyrrole. Structural, morphological and magnetic response of Fe3O4/SiO2/TiO2/PPy(FST/PPy) were characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction pattern, Fourier transform infrared spectroscopy and energy-dispersive X-ray spectroscopy, etc. Through SEM images, the crystal sizes of the prepared FST/PPy nanoparticles were determined to be about 110 nm. The catalytic activity of FST/PPy was evaluated by the degree of decomposition of rhodamine B under ultraviolet and visible light, respectively. FST/PPy had the photocatalytic activity under the action of the light: the degradation rate of rhodamine B reached 92.8% and 63.5% after 3 h of UV and Vis light irradiation, respectively. Especially, compared with FST, the degradation rate has shown obvious improvement under the action of Vis light. Furthermore, FST/PPy photocatalyst could be easily recycled using a magnet.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据