Chinese Journal of Chemical Engineering ›› 2021, Vol. 29 ›› Issue (1): 110-120.doi: 10.1016/j.cjche.2020.05.030

• Separation Science and Engineering • Previous Articles     Next Articles

Design and synthesis of Al-MOF/PPSU mixed matrix membrane with pollution resistance

Shujuan Xiao1, Xiaowen Huo1, Shuxin Fan1, Kui Zhao1, Shouwu Yu1, Xiaoyao Tan2   

  1. 1 College of Material Science and Engineering, North China University of Science and Technology, Tangshan 063210, China;
    2 School of Chemistry and Chemical Engineering, Tiangong University, Tianjin 300387, China
  • Received:2020-02-17 Revised:2020-04-27 Online:2021-01-28 Published:2021-04-02
  • Contact: Shouwu Yu, Xiaoyao Tan;
  • Supported by:
    This work was supported by Key Research and Development of Tangshan (19140204F).

Abstract: To enhance the performance of the polyphenylene sulfone (PPSU) membrane, a novel mixed matrix membrane with hydrophilicity and antifouling properties was prepared. Using PPSU as the basic membrane material, polyvinyl pyrrolidone (PVP) as the porogen, N-Methyl pyrrolidone (NMP) as the solvent, and MOF-CAU-1 (Al4(OH)2(OCH3)4(H2N-BDC)3·xH2O) as the filler, PPSU/CAU-1 mixed matrix membrane (MMM) was prepared by an immersion precipitation and phase transformation technique. By changing the amount of MOF-CAU-1, the properties and performance of the MMM membrane were investigated in terms of hydrophilicity, pore morphology, surface roughness, and dye removal. The results show that the highest pure water flux of the mixed reached 47.9 L·m-2·h-1, when the CAU-1 addition amount was 1.0 wt%, which was 23% higher than that of the pure PPSU membrane. Both the rejection rate and the antifouling performance of the MMM membrane also noticeably improved.

Key words: Mixed matrix membranes, Antifouling, Metal–organic frameworks, Membrane separation technology