首页|Design and fabrication of polyamine nanofiltration membrane by constituting multifunctional aliphatic linear amine and trifunctional cyanuric chloride for selective organic solvent nanofiltration
Design and fabrication of polyamine nanofiltration membrane by constituting multifunctional aliphatic linear amine and trifunctional cyanuric chloride for selective organic solvent nanofiltration
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NSTL
Elsevier
Background: Thin film composite nanofiltration (TFC-NF) membranes have been developed for organic solvent nanofiltration. Most of the polyamide TFC-NF membranes are vulnerable to nucleophilic hydrolysis. Methods: A multifucntional amine was crosslinked with a trifucntional non-aqueous monomer namely cyanuric chloride (CC) on surface of self-fabricated polysulfone/polyester terephthalate (PS/PET) membarne support leading to a new polyamine active layer containing TFC-NF membrane named as PA@PS/PET. The fabricated PA@PS/PET membrane was thoroughly characterized by several characterization techniques such as ATR-FTIR, XPS, FE-SEM, Water Contact Angle (WCA), and EDX analysis. Significant Findings: PA@PS/PET TFC-NF membrane showed remakable perfomance in terms of solvent flux for all tested solvents including water, methanol, ethanol and isopropanol. The highest flux was found to be 29.58 L m(-2)h(-1) at 8 bar for methanol. The flux of solvents was found to be inversly related to the viscosity of the solvents. The PA@PS/PET membrane showed remarkably high rejection of solute (Congo Red) reaching to a value of similar to 98%. Moreover, the PA@PS/PET membrane showed permanant flux of 8.45 L m(-2) h(-1) at 2 bar during solute separation (CR dye rejection) tests which hinted the stability of the membrane under the applied operating conditions. (C) 2022 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
NSTL
Elsevier
