An effective strategy on the preparation of the superhydrophobic electrospun nanoparticles/PVDF composite membranes for the oil-water separation. (7th May 2020)

• Record Type: Journal Article
• Authors: Lin, Bo; Li, Zeng-Tian; Jiang, Peng; Wang, Hua-Ying; Wu, Ying-Xuan; He, Fu-An; Wu, Hui-Jun
• Is Part Of: Surface topography. Volume 8:Number 2(2020:Apr./Jun.)
• Publication Date: 2020-05-07
• Subjects: nanoparticles -- polyvinylidene fluoride -- electrospun composite membrane -- surface modification -- superhydrophobicity -- oil-water separation; Surfaces (Physics) -- Periodicals; Surfaces (Physics) -- Measurement -- Periodicals; 530.417
• DOI: 10.1088/2051-672X/ab8beb
• Languages: English
• ISSNs: 2051-672X

Abstract

Abstract: 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 Fe3 O4 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.