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Influence of deposited amine‐functionalized Si‐MCM ‐41 in polyacrylonitrile electrospun membranes applied for separation of water in oil emulsions
Author(s) -
ÁvilaOrtega Alejandro,
AvalosHernández José Pablo,
TrejoTzab Rudy,
Oliva Andrés Iván,
JuárezMoreno Juan Antonio
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50737
Subject(s) - polyacrylonitrile , membrane , biofouling , chemical engineering , contact angle , materials science , emulsion , fourier transform infrared spectroscopy , fouling , wetting , polymer , chemistry , composite material , biochemistry , engineering
Among several oil/water emulsion separation technologies, the utilization of nanoparticle‐decorated membranes with diverse functionalities has received considerable attention in recent years, particularly if the antifouling capacity can be improved. In this article, we propose a new membrane based on surface‐hydrolyzed polyacrylonitrile electrospun membranes and/or decorated with amine‐functionalized Si‐MCM‐41 nanoparticles to be used as oil/water emulsion separation treatment and to determine their antifouling ability. X‐Ray photoelectron spectrometry, attenuated total reflectance Fourier transform infrared spectroscopy, and toluidine blue O assay, scanning electron microscopy, contact angle measurements for oil under water and thermogravimetry were used for characterizing the membranes and an assay of permeability was developed to quantify the diffusion of oil molecules across the electrospun membrane. The electrospun and/or decorated membranes showed an underwater oleophobic wettability, which can separate oil‐in‐water emulsions with 87% separation efficiency, results of fouling experiments, evaluated in terms of rejection and flux recovery ratio, exhibited good antifouling ability, but the membrane decoration process did not lead to superior outcomes compared with undecorated membranes.