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- W3029499483 abstract "A biomimetic Egeria-densa-like hybrid composite nanofiber membrane was fabricated to degrade organic pollutants in water, with PVDF nanofibers as stems to provide support, and ZnO nanowires as leaves to provide active sites. The Sm-doped ZnO nanowires@PVDF nanofiber membranes were characterized by FE-SEM, X-ray photoelectron spectroscopy, Fourier transform infrared, X-ray diffraction, and UV–vis diffuse reflectance spectrometer. Compared with the pure ZnO nanowires@PVDF nanofiber membrane, the Sm-doped membrane showed higher photocatalytic performance. The excellent photocatalytic activity was attributed to the increased specific surface area and the decreased bandgap of ZnO nanowires after Sm doping, which inhibited the recombination rate of electrons and holes and improved the absorption of visible light. We found that the superoxide free radicals ( O 2 − ) played a critical role in photocatalytic degradation. The Sm-doped ZnO nanowires@PVDF nanofiber membrane exhibited good stability after 5 cycles of RhB degradation. We believe such Sm-doped hybrid membrane can work as an effective photocatalyst for wastewater treatment. • Sm-doped ZnO@PVDF membrane was fabricated by electrospinning and hythermal growth. • The photocatalytic activity of ZnO nanowires was substantially improved by Sm doping. • Sm-doping increased the specific surface area and decreased the bandgap of ZnO. • The superoxide free radicals played a key role in photocatalytic degradation." @default.
- W3029499483 created "2020-06-05" @default.
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- W3029499483 date "2020-10-01" @default.
- W3029499483 modified "2023-10-16" @default.
- W3029499483 title "A Sm-doped Egeria-densa-like ZnO nanowires@PVDF nanofiber membrane for high-efficiency water clean" @default.
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- W3029499483 doi "https://doi.org/10.1016/j.scitotenv.2020.139818" @default.
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