High performance polyacrylonitrile-supported forward osmosis membranes prepared via aromatic solvent-based interfacial polymerization

Hyo Eun Kwon, Soon Jin Kwon, Sung Joon Park, Min Gyu Shin, Sang Hee Park, Min Sang Park, Hosik Park, Jung-hyun Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A high performance thin film composite (TFC) forward osmosis (FO) membrane was prepared using a hydrophilic polyacrylonitrile (PAN) support with a tailored structure via a newly devised, aromatic solvent (toluene)-based interfacial polymerization (TIP) technique. The use of toluene as the organic solvent promoted amine diffusion toward the organic phase and the subsequent reaction, leading to the formation of an ultrathin (highly permeable) and highly dense (highly selective) polyamide selective layer on the PAN support, which improved membrane performance. In addition, a relatively thin (∼80 μm) and finger-like porous support structure embedded with a nonwoven fabric was favorable for facilitating mass transport in the support. As a result, the TFC FO membrane prepared via TIP showed ∼2.1 times higher FO water flux and ∼68% lower specific salt flux than the membrane prepared via conventional aliphatic solvent-based interfacial polymerization (IP) in FO mode. Importantly, our TIP-assembled membrane exhibited superior FO performance over commercial and other lab-made membranes. Our strategy provides a facile solution to overcome the technical limitations of the conventional IP method by enabling the fabrication of high performance PA layers on hydrophilic supports, expanding the application spectrum of TFC membranes.

Original languageEnglish
Pages (from-to)449-457
Number of pages9
JournalSeparation and Purification Technology
Volume212
DOIs
Publication statusPublished - 2019 Apr 1

Fingerprint

Osmosis membranes
Polyacrylonitriles
Toluene
Polymerization
Osmosis
Membranes
Thin films
Fluxes
Nonwoven fabrics
Composite membranes
Nylons
Composite materials
Polyamides
Organic solvents
Amines
Mass transfer
Salts
polyacrylonitrile
Fabrication
Water

Keywords

  • Desalination
  • Forward osmosis
  • Interfacial polymerization
  • Polyacrylonitrile
  • Thin film composite membrane

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation

Cite this

High performance polyacrylonitrile-supported forward osmosis membranes prepared via aromatic solvent-based interfacial polymerization. / Kwon, Hyo Eun; Kwon, Soon Jin; Park, Sung Joon; Shin, Min Gyu; Park, Sang Hee; Park, Min Sang; Park, Hosik; Lee, Jung-hyun.

In: Separation and Purification Technology, Vol. 212, 01.04.2019, p. 449-457.

Research output: Contribution to journalArticle

Kwon, Hyo Eun ; Kwon, Soon Jin ; Park, Sung Joon ; Shin, Min Gyu ; Park, Sang Hee ; Park, Min Sang ; Park, Hosik ; Lee, Jung-hyun. / High performance polyacrylonitrile-supported forward osmosis membranes prepared via aromatic solvent-based interfacial polymerization. In: Separation and Purification Technology. 2019 ; Vol. 212. pp. 449-457.
@article{f7a9645deae64841a3a0eb33027e9fb7,
title = "High performance polyacrylonitrile-supported forward osmosis membranes prepared via aromatic solvent-based interfacial polymerization",
abstract = "A high performance thin film composite (TFC) forward osmosis (FO) membrane was prepared using a hydrophilic polyacrylonitrile (PAN) support with a tailored structure via a newly devised, aromatic solvent (toluene)-based interfacial polymerization (TIP) technique. The use of toluene as the organic solvent promoted amine diffusion toward the organic phase and the subsequent reaction, leading to the formation of an ultrathin (highly permeable) and highly dense (highly selective) polyamide selective layer on the PAN support, which improved membrane performance. In addition, a relatively thin (∼80 μm) and finger-like porous support structure embedded with a nonwoven fabric was favorable for facilitating mass transport in the support. As a result, the TFC FO membrane prepared via TIP showed ∼2.1 times higher FO water flux and ∼68{\%} lower specific salt flux than the membrane prepared via conventional aliphatic solvent-based interfacial polymerization (IP) in FO mode. Importantly, our TIP-assembled membrane exhibited superior FO performance over commercial and other lab-made membranes. Our strategy provides a facile solution to overcome the technical limitations of the conventional IP method by enabling the fabrication of high performance PA layers on hydrophilic supports, expanding the application spectrum of TFC membranes.",
keywords = "Desalination, Forward osmosis, Interfacial polymerization, Polyacrylonitrile, Thin film composite membrane",
author = "Kwon, {Hyo Eun} and Kwon, {Soon Jin} and Park, {Sung Joon} and Shin, {Min Gyu} and Park, {Sang Hee} and Park, {Min Sang} and Hosik Park and Jung-hyun Lee",
year = "2019",
month = "4",
day = "1",
doi = "10.1016/j.seppur.2018.11.053",
language = "English",
volume = "212",
pages = "449--457",
journal = "Separation and Purification Technology",
issn = "1383-5866",
publisher = "Elsevier",

}

TY - JOUR

T1 - High performance polyacrylonitrile-supported forward osmosis membranes prepared via aromatic solvent-based interfacial polymerization

AU - Kwon, Hyo Eun

AU - Kwon, Soon Jin

AU - Park, Sung Joon

AU - Shin, Min Gyu

AU - Park, Sang Hee

AU - Park, Min Sang

AU - Park, Hosik

AU - Lee, Jung-hyun

PY - 2019/4/1

Y1 - 2019/4/1

N2 - A high performance thin film composite (TFC) forward osmosis (FO) membrane was prepared using a hydrophilic polyacrylonitrile (PAN) support with a tailored structure via a newly devised, aromatic solvent (toluene)-based interfacial polymerization (TIP) technique. The use of toluene as the organic solvent promoted amine diffusion toward the organic phase and the subsequent reaction, leading to the formation of an ultrathin (highly permeable) and highly dense (highly selective) polyamide selective layer on the PAN support, which improved membrane performance. In addition, a relatively thin (∼80 μm) and finger-like porous support structure embedded with a nonwoven fabric was favorable for facilitating mass transport in the support. As a result, the TFC FO membrane prepared via TIP showed ∼2.1 times higher FO water flux and ∼68% lower specific salt flux than the membrane prepared via conventional aliphatic solvent-based interfacial polymerization (IP) in FO mode. Importantly, our TIP-assembled membrane exhibited superior FO performance over commercial and other lab-made membranes. Our strategy provides a facile solution to overcome the technical limitations of the conventional IP method by enabling the fabrication of high performance PA layers on hydrophilic supports, expanding the application spectrum of TFC membranes.

AB - A high performance thin film composite (TFC) forward osmosis (FO) membrane was prepared using a hydrophilic polyacrylonitrile (PAN) support with a tailored structure via a newly devised, aromatic solvent (toluene)-based interfacial polymerization (TIP) technique. The use of toluene as the organic solvent promoted amine diffusion toward the organic phase and the subsequent reaction, leading to the formation of an ultrathin (highly permeable) and highly dense (highly selective) polyamide selective layer on the PAN support, which improved membrane performance. In addition, a relatively thin (∼80 μm) and finger-like porous support structure embedded with a nonwoven fabric was favorable for facilitating mass transport in the support. As a result, the TFC FO membrane prepared via TIP showed ∼2.1 times higher FO water flux and ∼68% lower specific salt flux than the membrane prepared via conventional aliphatic solvent-based interfacial polymerization (IP) in FO mode. Importantly, our TIP-assembled membrane exhibited superior FO performance over commercial and other lab-made membranes. Our strategy provides a facile solution to overcome the technical limitations of the conventional IP method by enabling the fabrication of high performance PA layers on hydrophilic supports, expanding the application spectrum of TFC membranes.

KW - Desalination

KW - Forward osmosis

KW - Interfacial polymerization

KW - Polyacrylonitrile

KW - Thin film composite membrane

UR - http://www.scopus.com/inward/record.url?scp=85056904377&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056904377&partnerID=8YFLogxK

U2 - 10.1016/j.seppur.2018.11.053

DO - 10.1016/j.seppur.2018.11.053

M3 - Article

AN - SCOPUS:85056904377

VL - 212

SP - 449

EP - 457

JO - Separation and Purification Technology

JF - Separation and Purification Technology

SN - 1383-5866

ER -