Journal
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
Volume 8, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2051-672X/ab8beb
Keywords
nanoparticles; polyvinylidene fluoride; electrospun composite membrane; surface modification; superhydrophobicity; oil-water separation
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Funding
- Guangdong province natural science foundation, China [2017A030313268, 2017A030313080]
- Innovation Team Research Project of Guangzhou Education, China [1201610010]
- College Student Training Program of Guangdong University of Petrochemical Technology, China [733192, 733478]
- Special Innovation Project Foundation for Students of Guangdong Common University, China [PDJH2019b0327]
- professorial and doctoral scientific research foundation of Huizhou University, China [2018JB001]
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In this work, an effective strategy on the preparation of the superhydrophobic electrospun nanoparticles (NPs)/polyvinylidene fluoride (PVDF) composite membranes for oil-water separation was developed. The nanofibrous SiO2 NPs, TiO2 NPs, and Fe3O4 NPs/PVDF composite membranes were firstly prepared by the electrospinning technique and then immersed into the trimethoxy (1H,1H,2H,2H-heptadecafluorodecyl) silane (TMHFDS) solution to achieve the superhydrophobicity. Furthermore, the electrospun NPs/PVDF composite membranes after the TMHFDS surface modification were investigated by the Fourier-transform infrared (FTIR), the Wide-angle x-ray diffraction (WAXD), the scanning electron microscope (SEM), the two-dimension element mapping as well as the vibrating sample magnetometer (VSM), and their supehydrophobicities were confirmed by the water contact angle measurement. More importantly, the resultant superhydrophobic electrospun NPs/PVDF composite membranes displayed good oil-water separation ability by the operations of not only the absorption but also the filtration.
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