SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 41 ›› Issue (1): 260-266.DOI: 10.1016/j.cjche.2021.09.022

• Separation Science and Engineering • 上一篇    下一篇

Two-dimensional MXene hollow fiber membrane for divalent ions exclusion from water

Guozhen Liu, Yanan Guo, Baochun Meng, Zhenggang Wang, Gongping Liu, Wanqin Jin   

  1. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
  • 收稿日期:2021-07-21 修回日期:2021-09-24 出版日期:2022-01-28 发布日期:2022-02-25
  • 通讯作者: Gongping Liu,E-mail address:gpliu@njtech.edu.cn;Wanqin Jin,E-mail address:wqjin@njtech.edu.cn
  • 基金资助:
    The work is supported by the National Natural Science Foundation of China (22038006, 2192100621922805) and the Topnotch Academic Programs Project of Jiangsu Higher Education Institutions (TAPP).

Two-dimensional MXene hollow fiber membrane for divalent ions exclusion from water

Guozhen Liu, Yanan Guo, Baochun Meng, Zhenggang Wang, Gongping Liu, Wanqin Jin   

  1. State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
  • Received:2021-07-21 Revised:2021-09-24 Online:2022-01-28 Published:2022-02-25
  • Contact: Gongping Liu,E-mail address:gpliu@njtech.edu.cn;Wanqin Jin,E-mail address:wqjin@njtech.edu.cn
  • Supported by:
    The work is supported by the National Natural Science Foundation of China (22038006, 2192100621922805) and the Topnotch Academic Programs Project of Jiangsu Higher Education Institutions (TAPP).

摘要: Two-dimensional material membranes with fast transport channels and versatile chemical functionality are promising for molecular separation. Herein, for the first time, we reported design and engineering of two-dimensional Ti3C2Tx MXene (called transition metal carbides and nitrides) membranes supported on asymmetric polymeric hollow fiber substrate for water desalination. The membrane morphology, physicochemical properties and ions exclusion performance were systematically investigated. The results demonstrated that surface hydrophilicity and electrostatic repulsion and size sieving effect of interlayer channels synergistically endowed the MXene hollow fiber membrane with fast water permeation and efficient rejection of divalent ions during nanofiltration process.

关键词: Two-dimensional material, MXene membranes, Hollow fiber, Desalination, Nanofiltration

Abstract: Two-dimensional material membranes with fast transport channels and versatile chemical functionality are promising for molecular separation. Herein, for the first time, we reported design and engineering of two-dimensional Ti3C2Tx MXene (called transition metal carbides and nitrides) membranes supported on asymmetric polymeric hollow fiber substrate for water desalination. The membrane morphology, physicochemical properties and ions exclusion performance were systematically investigated. The results demonstrated that surface hydrophilicity and electrostatic repulsion and size sieving effect of interlayer channels synergistically endowed the MXene hollow fiber membrane with fast water permeation and efficient rejection of divalent ions during nanofiltration process.

Key words: Two-dimensional material, MXene membranes, Hollow fiber, Desalination, Nanofiltration