Robust preparation of tubular PTFE/FEP ultrafine fibers-covered porous membrane by electrospinning for continuous highly effective oil/water separation

被引：68

作者：

Huang, Yan ^{[1
]}

Xiao, Changfa ^{[1
]}

Huang, Qinglin ^{[1
]}

Liu, Hailiang ^{[1
]}

Guo, Zhuang ^{[1
]}

Sun, Kaixuan ^{[1
]}

机构：

[1] Tianjin Polytech Univ, State Key Lab Separat Membranes & Membrane Proc, Natl Ctr Int Joint Res Separat Membranes, Sch Mat Sci & Engn, 399 Binshui West Rd, Tianjin 300387, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2018年 / 568卷

基金：

中国国家自然科学基金;

关键词：

Electrospinning; PTFE/FEP; Tubular porous membranes; Oil/water separation; NANOTUBE HYBRID MEMBRANES; OIL; WETTABILITY; TECHNOLOGY; DESALINATION; FABRICATION; SURFACE;

D O I：

10.1016/j.memsci.2018.09.062

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We proposed a facile and robust strategy for fabricating tubular polytetrafluoroethylene (PTFE) / poly (tetrafluoroethylene-co-hexafluoropropylene) (FEP) ultrafine fibers-covered porous membranes for continuous oil/water separation via electrospinning-sintering method. Specifically, PTFE/FEP/poly (vinyl alcohol) (PVA) ultrafine fibers were electrospun covering on a porous supporting tube which served as the outer layer of the porous membranes. Manipulation of shapes by control of FEP additions enabled the creation of PTFE porous membranes with optimized membrane pore structure during the sintering process. Meanwhile, the obtained membranes had excellent oil/water selectivity in oil/water separation. Moreover, they could effectively separate surfactant-stabilized water-in-oil emulsions with separation efficiency as high as 99.9% and high flux (134 L m(-2).h(-1) at 0.5 bar). Therefore, tubular PTFE/FEP ultrafine fibers-covered porous membranes enabled an efficient separation for various oil/water emulsions, showing attractive potential for practical oil/water separation.

引用

页码：87 / 96

页数：10

共 8 条

[1] High throughput PTFE@PPS/ACFs porous membrane for continuous highly effective oil-water separation
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[2] Constructing tubular/porous structures toward highly efficient oil/water separation in electrospun stereocomplex polylactide fibers via coaxial electrospinning technology
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[7] Polyphenylene Sulfide Ultrafine Viscous Fibrous Membrane Modified by ZIF-8 for Highly Effective Oil/Water Separation under High Salt or Alkaline Conditions
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[8] A facile and fast preparation of robust superhydrophobic brass mesh coated with Cu(OH)2 nanowires by pulse electrodeposition for continuous highly efficient oil/water separation
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