SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2022, Vol. 41 ›› Issue (1): 286-293.DOI: 10.1016/j.cjche.2021.12.013

• Separation Science and Engineering • Previous Articles     Next Articles

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

Yajie Wang1,2, Zhiwei Guo1,2, Yujie Yang1,2, Yanxiang Li1,2, Qingchun Guo3, Peilin Cui4, Wangliang Li1,2   

  1. 1 CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Hebei Lansheng Biotech Co., Ltd, Shijiazhuang 052200, China;
    4 International Medical Service, Beijing Tiantan Hospital Affiliated to Capital Medical University, China
  • Received:2021-05-07 Revised:2021-12-13 Online:2022-02-25 Published:2022-01-28
  • Contact: Wangliang Li,E-mail address:wlli@ipe.ac.cn
  • Supported by:
    This work is supported by the National Natural Science Foundation of China (22078347), National Natural Science Foundation of China (21961160745), Key Research and Development Program of Hebei Province, China (20374001D,21373303D), Science and Technology Program of Guanshanhu ([2020]13), Program of Innovation Academy for Green Manufacture, CAS (IAGM2020C04).

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

Yajie Wang1,2, Zhiwei Guo1,2, Yujie Yang1,2, Yanxiang Li1,2, Qingchun Guo3, Peilin Cui4, Wangliang Li1,2   

  1. 1 CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Hebei Lansheng Biotech Co., Ltd, Shijiazhuang 052200, China;
    4 International Medical Service, Beijing Tiantan Hospital Affiliated to Capital Medical University, China
  • 通讯作者: Wangliang Li,E-mail address:wlli@ipe.ac.cn
  • 基金资助:
    This work is supported by the National Natural Science Foundation of China (22078347), National Natural Science Foundation of China (21961160745), Key Research and Development Program of Hebei Province, China (20374001D,21373303D), Science and Technology Program of Guanshanhu ([2020]13), Program of Innovation Academy for Green Manufacture, CAS (IAGM2020C04).

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 Fe3O4 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.

Key words: Superparamagnetic, Nanofiber membrane, Anti-fouling, Oil-water emulsion, Regeneration

摘要: 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 Fe3O4 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.

关键词: Superparamagnetic, Nanofiber membrane, Anti-fouling, Oil-water emulsion, Regeneration