Polysulfone and its quaternary phosphonium derivative composite membranes with high water flux

Ezzatollah Shamsaei, Ze-Xian Low, Xiaocheng Lin, Zhe (Jefferson) Liu, Huanting Wang

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Tris(2,4,6-trimethoxyphenyl)polysulfonemethylene quaternary phosphonium chloride (TPQP-Cl) was blended with polysulfone (PSf) in different compositions to fabricate PSf/TPQP-Cl composite ultrafiltration membranes using the nonsolvent-induced phase separation method. The blending of polymers was confirmed by attenuated total reflectance infrared (ATR-IR) spectroscopy. Surface and cross-sectional morphologies of membranes were characterized using scanning electron microscopy (SEM). The SEM images showed that the PSf/TPQP-Cl membranes had a typical asymmetric structure. The X-ray photoelectron spectroscopy (XPS) and contact angle analysis revealed the enrichment of TPQP-Cl in the supporting layer of the membrane. In addition, water content, porosity, contact angle, pure water flux, and molecular weight cutoff were measured to study the influence of addition of TPQP-Cl. In particular, the addition of TPQP-Cl led to greatly increased water flux without significantly increased molecular weight cutoff; the PSf/TPQP-Cl membranes exhibited up to 7.3 times higher water flux than the pure PSf membrane at similar rejection properties. This work provides an effective way to tailor ultrafiltration membrane structure to achieve high flux while maintaining rejection properties.
Original languageEnglish
Pages (from-to)3333 - 3340
Number of pages8
JournalIndustrial and Engineering Chemistry Research
Volume54
Issue number13
DOIs
Publication statusPublished - 8 Apr 2015

Cite this

@article{238af02a6ff84546b115e5d9563b9465,
title = "Polysulfone and its quaternary phosphonium derivative composite membranes with high water flux",
abstract = "Tris(2,4,6-trimethoxyphenyl)polysulfonemethylene quaternary phosphonium chloride (TPQP-Cl) was blended with polysulfone (PSf) in different compositions to fabricate PSf/TPQP-Cl composite ultrafiltration membranes using the nonsolvent-induced phase separation method. The blending of polymers was confirmed by attenuated total reflectance infrared (ATR-IR) spectroscopy. Surface and cross-sectional morphologies of membranes were characterized using scanning electron microscopy (SEM). The SEM images showed that the PSf/TPQP-Cl membranes had a typical asymmetric structure. The X-ray photoelectron spectroscopy (XPS) and contact angle analysis revealed the enrichment of TPQP-Cl in the supporting layer of the membrane. In addition, water content, porosity, contact angle, pure water flux, and molecular weight cutoff were measured to study the influence of addition of TPQP-Cl. In particular, the addition of TPQP-Cl led to greatly increased water flux without significantly increased molecular weight cutoff; the PSf/TPQP-Cl membranes exhibited up to 7.3 times higher water flux than the pure PSf membrane at similar rejection properties. This work provides an effective way to tailor ultrafiltration membrane structure to achieve high flux while maintaining rejection properties.",
author = "Ezzatollah Shamsaei and Ze-Xian Low and Xiaocheng Lin and Liu, {Zhe (Jefferson)} and Huanting Wang",
year = "2015",
month = "4",
day = "8",
doi = "10.1021/acs.iecr.5b00416",
language = "English",
volume = "54",
pages = "3333 -- 3340",
journal = "Industrial and Engineering Chemistry Research",
issn = "0888-5885",
number = "13",

}

Polysulfone and its quaternary phosphonium derivative composite membranes with high water flux. / Shamsaei, Ezzatollah; Low, Ze-Xian; Lin, Xiaocheng; Liu, Zhe (Jefferson); Wang, Huanting.

In: Industrial and Engineering Chemistry Research, Vol. 54, No. 13, 08.04.2015, p. 3333 - 3340.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Polysulfone and its quaternary phosphonium derivative composite membranes with high water flux

AU - Shamsaei, Ezzatollah

AU - Low, Ze-Xian

AU - Lin, Xiaocheng

AU - Liu, Zhe (Jefferson)

AU - Wang, Huanting

PY - 2015/4/8

Y1 - 2015/4/8

N2 - Tris(2,4,6-trimethoxyphenyl)polysulfonemethylene quaternary phosphonium chloride (TPQP-Cl) was blended with polysulfone (PSf) in different compositions to fabricate PSf/TPQP-Cl composite ultrafiltration membranes using the nonsolvent-induced phase separation method. The blending of polymers was confirmed by attenuated total reflectance infrared (ATR-IR) spectroscopy. Surface and cross-sectional morphologies of membranes were characterized using scanning electron microscopy (SEM). The SEM images showed that the PSf/TPQP-Cl membranes had a typical asymmetric structure. The X-ray photoelectron spectroscopy (XPS) and contact angle analysis revealed the enrichment of TPQP-Cl in the supporting layer of the membrane. In addition, water content, porosity, contact angle, pure water flux, and molecular weight cutoff were measured to study the influence of addition of TPQP-Cl. In particular, the addition of TPQP-Cl led to greatly increased water flux without significantly increased molecular weight cutoff; the PSf/TPQP-Cl membranes exhibited up to 7.3 times higher water flux than the pure PSf membrane at similar rejection properties. This work provides an effective way to tailor ultrafiltration membrane structure to achieve high flux while maintaining rejection properties.

AB - Tris(2,4,6-trimethoxyphenyl)polysulfonemethylene quaternary phosphonium chloride (TPQP-Cl) was blended with polysulfone (PSf) in different compositions to fabricate PSf/TPQP-Cl composite ultrafiltration membranes using the nonsolvent-induced phase separation method. The blending of polymers was confirmed by attenuated total reflectance infrared (ATR-IR) spectroscopy. Surface and cross-sectional morphologies of membranes were characterized using scanning electron microscopy (SEM). The SEM images showed that the PSf/TPQP-Cl membranes had a typical asymmetric structure. The X-ray photoelectron spectroscopy (XPS) and contact angle analysis revealed the enrichment of TPQP-Cl in the supporting layer of the membrane. In addition, water content, porosity, contact angle, pure water flux, and molecular weight cutoff were measured to study the influence of addition of TPQP-Cl. In particular, the addition of TPQP-Cl led to greatly increased water flux without significantly increased molecular weight cutoff; the PSf/TPQP-Cl membranes exhibited up to 7.3 times higher water flux than the pure PSf membrane at similar rejection properties. This work provides an effective way to tailor ultrafiltration membrane structure to achieve high flux while maintaining rejection properties.

UR - http://pubs.acs.org/doi/pdf/10.1021/acs.iecr.5b00416

U2 - 10.1021/acs.iecr.5b00416

DO - 10.1021/acs.iecr.5b00416

M3 - Article

VL - 54

SP - 3333

EP - 3340

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

SN - 0888-5885

IS - 13

ER -