Anti-fouling and protein separation of PVDF-g-PMAA@MnO2 filtration membrane with in-situ grown MnO2 nanorods. (January 2022)

• Record Type: Journal Article
• Authors: Fan, Kai; Su, Jiang; Zeng, Zihang; Hu, Jun; Yang, Haijun; Hou, Zhengchi
• Is Part Of: Chemosphere. Volume 286:Part 2(2022)
• Publication Date: 2022-01
• Subjects: Hydrothermal redox reaction of KMnO4 -- MnO2 nanorods -- PVDF-g-PMAA@MnO2 membrane -- Protein separation -- Anti-fouling performance; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2021.131756
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: MnO2 nanorods with controllable scale were grown in the PVDF-g-PMAA modified membrane to form PVDF-g-PMAA@ MnO2 membrane through the in situ redox reaction of KMnO4 solution, which is confirmed by scanning electron microscopy (SEM) and X-ray energy-dispersion spectroscopy (EDX). The pore size of the membrane decreased with the increase of KMnO4 solution concentration. The thermodynamic stability and the hydrophilicity of the membrane were also enhanced by the MnO2 nanorods. The water flux, bovine serum albumin (BSA)/Lysozyme protein solution flux and rejection, flux recovery, etc. showed effective improvement of the anti-fouling performance of the PVDF-g-PMAA@ MnO2 membrane. More importantly, it can effectively separate BSA from lysozyme, which provided a potential application in the field of biology, food, and other industrial fields for the requirement of separation and purification. Graphical abstract: Image 1 Highlights: PVDF-g-PMAA@MnO2 filtration membrane fabricated by hydrothermal redox reaction of KMnO4 solution inside membrane. Effective separation of BSA and lysozyme protein in aqueous solution. Improving anti-fouling property of PVDF membrane by irradiation grafting and hydrothermal redox reaction.