Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (4): 690.doi: 10.7503/cjcu20190654

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Sulfonated Cellulose Nanofibers Film Supported Nanofiltration Membrane for High-flux and High-rejection Desalination

KONG Jinfeng1,ZHU Yuzhang2,*(),JIN Jian1,2,*()   

  1. 1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
    2. Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
  • Received:2019-12-11 Online:2020-04-10 Published:2020-02-17
  • Contact: Yuzhang ZHU,Jian JIN E-mail:yzzhu2011@sinano.ac.cn;jjin@suda.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundcation for Distinguished Young Scholars of China(51625306);the National Natural Science Foundcation for Young Scientists of China(51603229)

Abstract:

Sulfonated bacterial cellulose(SBC) nanofibers were prepared via oxidation-reduction reaction of NaIO4 and NaHSO3. Using this SBC nanofibers film as a new support porous membrane, high performance nanofiltration membrane with highly crumpled polyamide selective layer was prepared via interfacial polymerization between piperazine(PIP) and trimesoyl chloride(TMC). This novel nanofiltration membrane exhibits a superior desalination performance with a high rejection rate of 98.6% and a high permeance of 320 L·m -2·h -1·MPa -1 to 1 g/L Na2SO4. The new nanofiltration membrane has a wide application prospect in desalination.

Key words: Sulfonated bacterial cellulose nanofiber, Nanofiltration membrane, Desalination, High flux

CLC Number: 

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