Inorganic Chemicals Industry ›› 2021, Vol. 53 ›› Issue (10): 15-21.doi: 10.19964/j.issn.1006-4990.2020-0640

• Reviews and Special Topics • Previous Articles     Next Articles

Research progress of graphene oxide modified polyamide membrane

Bai Lu1,2,3(),Wang Min1,2,Yang Hongjun1,2(),Peng Zhengjun1,2,Zhao Youjing1,2,Li Zhilu1,2   

  1. 1. Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining 810008,China
    2. Qinghai Provincial Key Laboratory of Resources and Chemistry of Salt Lakes
    3. University of Chinese Academy of Sciences
  • Received:2020-11-25 Online:2021-10-10 Published:2021-10-11
  • Contact: Yang Hongjun E-mail:bailu191@mails.ucas.ac.cn;hjyang@isl.ac.cn

Abstract:

Polyamide membrane is widely used in seawater softening,brackish water desalination,wastewater treatment and other fields.Higher requirement for polyamide membrane has been put forward for various application scenarios.Graphene oxide(GO) has attracted much attention of scholars for its excellent mechanical property,chemical stability and hydrophilici-ty.Polyamide membrane was modified by GO in different layers to improve its water flux,antipollution and chlorine-resistance.The degradation process of polyamide membrane in acidic and chlorine-containing solution was reviewed and GO structure characteristics was introduced.The research progress in polyamide membrane modified by GO in the support layer,between the support and functional layer,in the functional layer and the surface of the functional layer to improve the performance of the membrane were mainly focused.The mass transfer processes of metal ions and water molecules in polyamide membrane modi-fied by GO were briefly introduced.Finally,it was suggested that the further research could be carried out from the aspects of perfecting the anti-fouling mechanism of GO modified polyamide membrane,improving the stability of GO in membrane matrix,increasing the dispersion of GO in solution,enhancing the acid resistance of GO modified polyamide membrane in the future.

Key words: nanomaterial, membrane, graphene oxide, water treatment, pollution

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