SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2022, Vol. 50 ›› Issue (10): 185-196.DOI: 10.1016/j.cjche.2022.07.011

• Separation Science and Engineering • Previous Articles     Next Articles

Fabrication of anti-fouling polyamide nanofiltration membrane by incorporating streptomycin as a novel co-monomer

Shujie Guo, Jiao Du, Fangzheng Yan, Zhi Wang, Jixiao Wang   

  1. Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300350, China; Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300350, China
  • Received:2022-03-28 Revised:2022-07-12 Online:2023-01-04 Published:2022-10-28
  • Contact: Zhi Wang,E-mail:wangzhi@tju.edu.cn
  • Supported by:
    This work was supported by the Joint Funds of the National Natural Science Foundation of China (U2006220).

Fabrication of anti-fouling polyamide nanofiltration membrane by incorporating streptomycin as a novel co-monomer

Shujie Guo, Jiao Du, Fangzheng Yan, Zhi Wang, Jixiao Wang   

  1. Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China; Tianjin Key Laboratory of Membrane Science and Desalination Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300350, China; Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300350, China
  • 通讯作者: Zhi Wang,E-mail:wangzhi@tju.edu.cn
  • 基金资助:
    This work was supported by the Joint Funds of the National Natural Science Foundation of China (U2006220).

Abstract: Polyamide (PA) thin-film composite (TFC) nanofiltration (NF) membrane has extremely broad application prospects in separation of monovalent/divalent inorganic salts mixed solution. However, membrane fouling is the main obstacle to the application of PA, TFC and NF membrane. Streptomycin (SM) is a hydrophilic antibiotic containing a large number of hydroxyl and amino groups. In this work, the NF membrane was prepared via interfacial polymerization (IP) between trimesoyl chloride (TMC) in the organicphaseand SM/piperazine (PIP) mixture in theaqueousphase. The NF membrane structure and performance were characterized in detail. The results showed that SM successfully participated in the IP. The negative charge and hydrophilicity of membrane surface were improved. The prepared membrane exhibited good anti-adhesion and anti-bacterial performance. Additionally, when the SM concentration was 2%, the prepared membrane exhibited the optimal permselectivity. The water permeance was 89.4 L·m-2·h-1·MPa-1. The rejection of NaCl and Na2SO4 were 17.17% and 97.84%, respectively. The NaCl/Na2SO4 separation factor of the SM2-PIP/TMC membrane in 1000 mg·L-1 NaCl and 1000 mg·L-1 Na2SO4 mixed solution was 40, which was 3.3 times that of PIP/TMC membrane. It indicated that SM2-PIP/TMC demonstrated excellent monovalent/divalent salts separation performance. This work provided an easy and effective approach to preparing anti-fouling NF membrane while possessing superior monovalent/divalent salts separation performance.

Key words: Streptomycin, Polyamide, Nanofiltration membrane, Anti-adhesion, Anti-bacterial

摘要: Polyamide (PA) thin-film composite (TFC) nanofiltration (NF) membrane has extremely broad application prospects in separation of monovalent/divalent inorganic salts mixed solution. However, membrane fouling is the main obstacle to the application of PA, TFC and NF membrane. Streptomycin (SM) is a hydrophilic antibiotic containing a large number of hydroxyl and amino groups. In this work, the NF membrane was prepared via interfacial polymerization (IP) between trimesoyl chloride (TMC) in the organicphaseand SM/piperazine (PIP) mixture in theaqueousphase. The NF membrane structure and performance were characterized in detail. The results showed that SM successfully participated in the IP. The negative charge and hydrophilicity of membrane surface were improved. The prepared membrane exhibited good anti-adhesion and anti-bacterial performance. Additionally, when the SM concentration was 2%, the prepared membrane exhibited the optimal permselectivity. The water permeance was 89.4 L·m-2·h-1·MPa-1. The rejection of NaCl and Na2SO4 were 17.17% and 97.84%, respectively. The NaCl/Na2SO4 separation factor of the SM2-PIP/TMC membrane in 1000 mg·L-1 NaCl and 1000 mg·L-1 Na2SO4 mixed solution was 40, which was 3.3 times that of PIP/TMC membrane. It indicated that SM2-PIP/TMC demonstrated excellent monovalent/divalent salts separation performance. This work provided an easy and effective approach to preparing anti-fouling NF membrane while possessing superior monovalent/divalent salts separation performance.

关键词: Streptomycin, Polyamide, Nanofiltration membrane, Anti-adhesion, Anti-bacterial