Electrospinning superhydrophobic-superoleophilic PVDF-SiO2 nanofibers membrane for oil-water separation

被引：86
作者：
Jiang, Shan [1 ]
Meng, Xiangfei [1 ]
Chen, Binling [2 ]
Wang, Nannan [2 ,3 ]
Chen, Guangkai [2 ]
机构：
[1] Changzhou Univ, Sch Mat Sci & Engn, Changzhou, Peoples R China
[2] Beijing Univ Chem Technol, Changzhou Inst Adv Mat, 520 Ave,801 Changwu Middle Rd, Changzhou, Jiangsu, Peoples R China
[3] Univ Guangxi, Sch Resources Environm & Mat, Inorgan Fullerene Ctr, Nanning, Guangxi, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2020年 / 137卷 / 47期
关键词：
composites; membranes; nanocrystals; nanoparticles; nanowires; surfaces and interfaces; POLY(VINYLIDENE FLUORIDE); OIL/WATER SEPARATION; THERMAL-DEGRADATION; PURIFICATION; WETTABILITY; EFFICIENCY; FABRICS;
D O I：
10.1002/app.49546
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Oil-water separation has attracted research interest due to the damages of oily wastewater caused to the environment and human beings. Electrospun fiber membrane has high oil-water separation performance. A nanofibers membrane with multi-stage roughness was prepared by electrospinning using poly(vinylidene fluoride)(PVDF)-silica blend solution as raw material. The result shows that the water contact angle (WCA) of the nanofibers membrane was promoted from 138.5 +/- 1 degrees to 150.0 +/- 1.5 degrees when the SiO(2)content was increased from 0 to 3 wt%. The nanofibers membranes exhibited excellent separation efficiency (99 +/- 0.1%) under gravity drive, with high separation flux of 1857 +/- 101 L center dot m(-2)center dot h(-1). More importantly, the obtained PVDF-SiO(2)nanofibers membranes showed excellent multi-cycle performance and stable chemical resistance, which would make them great advantages for the practical application of oil-water separation.
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页数：10
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