首页|TFC solvent-resistant nanofiltration membrane prepared via a gyroid-like PE support coated with polydopamine/Tannic acid-Fe(III)

TFC solvent-resistant nanofiltration membrane prepared via a gyroid-like PE support coated with polydopamine/Tannic acid-Fe(III)

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  • NSTL
  • Elsevier
Solvent resistant nanofiltration (SRNF) is now a powerful tool for addressing environmental issues. Hence, we report the fabrication of a thin film composite (TFC) membrane comprised of a novel HDPE support, a polydopamine (PDA)/Tannic acid-Fe(III) interlayer and a polyamide (PA) skin layer. In this respect, high density polyethylene (HDPE)-polystyrene (PS)-styrene-ethylene-butylene-styrene (SEBS) blends were formed with different compositions by mixing via a Brabender machine and making films by using a hot press instrument. Next, a solvent extraction technique was employed for extracting the dispersed phase and making the HDPE membranes. The support membrane with optimum properties was coated with a PDA interlayer. A tannic acid-Fe(III) interlayer was also formed on the as-prepared PDA layer so that the hydrophilicity of the support surface was enhanced to form a defect-free PA layer. The modified support was utilized for the fabrication of the PA top layer by using m-phenylene diamine (MPD) and trimesoyl chloride (TMC) monomers. The prepared TFC membrane provided a significant dye rejection ability (99.9% Direct Yellow, 99.7% Methyl Green, 99.2% Rhodamine B, and 96.1% Methyl Orange), extraordinary solvent resistance ability in harsh solvents, and good methanol (MeOH) Flux (2.25 L/m(2).h.bar) in SRNF applications. The skin-substrate adhesion strength of the top layer was also evaluated by a back-ward flush operation. It was demonstrated that the interlayer and the skin layer had an excellent adhesion with the support membrane. (C) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

Dispersed Phase ExtractionPorous PE SupportThin Film Composite membranePolydopamine/Tannic acid-Fe3+ InterlayerSRNF applicationTHIN-FILM NANOCOMPOSITEMETAL-ORGANIC FRAMEWORKSCOMPOSITE MEMBRANESMECHANICAL-PROPERTIESFACILE SYNTHESISPERFORMANCESURFACEFLUXNANOPARTICLESSEPARATOR

Heidari, Ali Akbar、Mahdavi, Hossein、Kahriz, Peyman Khodaei

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Univ Tehran

2022

10.1016/j.jiec.2021.11.017

Journal of industrial and engineering chemistry

Journal of industrial and engineering chemistry

EISCI
ISSN：1226-086X
年,卷(期)：2022.106
  • 6
  • 70