Fabrication of magnetically responsive anti-fouling and easy-cleaning nanofiber membrane and its application for efficient oil-water emulsion separation

Yajie Wang; Zhiwei Guo; Yujie Yang; Yanxiang Li; Qingchun Guo; Peilin Cui; Wangliang Li

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Fabrication of magnetically responsive anti-fouling and easy-cleaning nanofiber membrane and its application for efficient oil-water emulsion separation

Separation Science and Engineering | Updated：2026-01-06

- Fabrication of magnetically responsive anti-fouling and easy-cleaning nanofiber membrane and its application for efficient oil-water emulsion separation
- Chinese Journal of Chemical Engineering Vol. 41, Issue 1, Pages: 286-293(2022)
- Affiliations：
  
  1. CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
  2. University of Chinese Academy of Sciences,Beijing,China,100049
  3. Hebei Lansheng Biotech Co., Ltd,Shijiazhuang,China,052200
  4. International Medical Service, Beijing Tiantan Hospital Affiliated to Capital Medical University,China
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2022
- Accepted：
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Yajie Wang, Zhiwei Guo, Yujie Yang, Yanxiang Li, Qingchun Guo, Peilin Cui, Wangliang Li. Fabrication of magnetically responsive anti-fouling and easy-cleaning nanofiber membrane and its application for efficient oil-water emulsion separation[J]. Chinese Journal of Chemical Engineering, 2022, 41(1): 286-293.
DOI：

Yajie Wang, Zhiwei Guo, Yujie Yang, Yanxiang Li, Qingchun Guo, Peilin Cui, Wangliang Li. Fabrication of magnetically responsive anti-fouling and easy-cleaning nanofiber membrane and its application for efficient oil-water emulsion separation[J]. Chinese Journal of Chemical Engineering, 2022, 41(1): 286-293. DOI：

摘要

Abstract

The magnetically responsive anti-fouling nanofiber membrane (MRANM) was fabricated for efficient oilwater emulsion separation

which could be cleaned using oscillating magnetic field. MRANM was prepared by grafting superparamagnetic Fe

nanoparticles onto the surface of electrospun polyacrylonitrile nanofiber membrane (PANM). Compared with PANM

the water contact angle of MRANM decreased from 104° to 0°

indicating that the hydrophilicity of the membrane was significantly improved. For the emulsions of hexadecane

octane and rapeseed oil

the separation efficiency was 98.04%

96.59% and 92.67%

respectively. After the treatments in oscillating magnetic field

the separation efficiency kept above 95% after 8 times recycling

which indicated that the MRANM had good regenerability and reusability. The as-fabricated membrane with magnetic responsiveness facilitated an effective method for solving the membrane fouling problem during practical applications of separation high viscosity oil-water emulsion.

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