A novel mixed matrix polysulfone membrane for enhanced ultrafiltration and photocatalytic self-cleaning performance

Minjia Meng, Binrong Li, Yu Zhu, Yongsheng Yan, Yonghai Feng

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Photocatalytic materials can be used as self-cleaning functional materials to alleviate the irreversible fouling of ultrafiltration membranes. In this work, the small size g-C3N4/Bi2MoO6 (SCB) blended polysulfone (PSF) ultrafiltration membranes was fabricated by hydrothermal and phase inversion methods. As a functional filler of ultrafiltration membranes, the small size g-C3N4 nanosheet decorated on the surface of Bi2MoO6 can enhance the photocatalytic performance for bovine serum albumin (BSA) degradation, and remove irreversible fouling under visible light irradiation. In addition, the introduction of SCB microspheres into PSF matrix obviously increased the porosity of ultrafiltration membranes. Therefore, the SCB-PSF ultrafiltration membranes displayed excellent antifouling performance (flux recovery ratio is 82.53%) and BSA rejection rates (94.77%). SCB-PSF also had high photocatalytic self-cleaning activity, indicating excellent application prospects in organic wastewater treatment.

Original languageEnglish
Pages (from-to)178-189
Number of pages12
JournalJournal of Colloid and Interface Science
Volume599
DOIs
StatePublished - Oct 2021
Externally publishedYes

Keywords

  • BSA rejection
  • Mixed matrix membranes
  • Self-cleaning
  • Small-size g-CN/BiMoO heterojunction
  • Ultrafiltration

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