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Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane

Polyethersulfone (PES) nanofiltration membranes were prepared using a simple dryjet wet spinning technique with different contents of sulfonated poly(ether ether ketone) (SPEEK) ranging from 0 to 4 wt %. The structural parameters (rp and Ak/dx) and electrostatic properties (? and X) of the blend mem...

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Main Authors: Ismail, Ahmad Fauzi, Lau, W. J.
Format: Article
Published: American Institute of Chemical Engineers 2009
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/13149/
http://dx.doi.org/10.1002/aic.11821
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spelling my.utm.131492017-10-25T06:53:22Z http://eprints.utm.my/id/eprint/13149/ Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane Ismail, Ahmad Fauzi Lau, W. J. QD Chemistry Polyethersulfone (PES) nanofiltration membranes were prepared using a simple dryjet wet spinning technique with different contents of sulfonated poly(ether ether ketone) (SPEEK) ranging from 0 to 4 wt %. The structural parameters (rp and Ak/dx) and electrostatic properties (? and X) of the blend membranes were deduced by employing the combination of irreversible thermodynamic model, steric hindrance pore (SHP) model, and Teorell-Meyer-Sievers (TMS) model. The modeling results obtained have been analyzed and discussed. The mean pore radius and pore size distribution of the blends were also determined based on the theoretical models. The results showed that pore radius increased with increasing the concentration of SPEEK from 0 to 2 wt % but decreased with a further increase in SPEEK content. The water flux, however, showed a systematically increase with increasing SPEEK content. The SPEEK also showed significant effect on membrane electrical properties. Both effective charge density and ratio of effective charge density to electrolyte solution increased with increasing concentration of SPEEK in the dope solution, reaching a value of-21.02 and-2.29, respectively. The pore radius which was determined by using different transport models has also been analyzed and discussed. It is found that the addition of SPEEK into dope solution is one of the paramount parameters in developing the negatively charged nanofiltration membrane with enhanced water flux while retaining the pore radius in the nanometer range. American Institute of Chemical Engineers 2009-08 Article PeerReviewed Ismail, Ahmad Fauzi and Lau, W. J. (2009) Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane. AIChE Journal , 55 (8). pp. 2081-2093. ISSN 0001-1541 http://dx.doi.org/10.1002/aic.11821 doi:10.1002/aic.11821
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic QD Chemistry
spellingShingle QD Chemistry
Ismail, Ahmad Fauzi
Lau, W. J.
Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane
description Polyethersulfone (PES) nanofiltration membranes were prepared using a simple dryjet wet spinning technique with different contents of sulfonated poly(ether ether ketone) (SPEEK) ranging from 0 to 4 wt %. The structural parameters (rp and Ak/dx) and electrostatic properties (? and X) of the blend membranes were deduced by employing the combination of irreversible thermodynamic model, steric hindrance pore (SHP) model, and Teorell-Meyer-Sievers (TMS) model. The modeling results obtained have been analyzed and discussed. The mean pore radius and pore size distribution of the blends were also determined based on the theoretical models. The results showed that pore radius increased with increasing the concentration of SPEEK from 0 to 2 wt % but decreased with a further increase in SPEEK content. The water flux, however, showed a systematically increase with increasing SPEEK content. The SPEEK also showed significant effect on membrane electrical properties. Both effective charge density and ratio of effective charge density to electrolyte solution increased with increasing concentration of SPEEK in the dope solution, reaching a value of-21.02 and-2.29, respectively. The pore radius which was determined by using different transport models has also been analyzed and discussed. It is found that the addition of SPEEK into dope solution is one of the paramount parameters in developing the negatively charged nanofiltration membrane with enhanced water flux while retaining the pore radius in the nanometer range.
format Article
author Ismail, Ahmad Fauzi
Lau, W. J.
author_facet Ismail, Ahmad Fauzi
Lau, W. J.
author_sort Ismail, Ahmad Fauzi
title Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane
title_short Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane
title_full Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane
title_fullStr Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane
title_full_unstemmed Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane
title_sort theoretical studies on structural and electrical properties of pes/speek blend nanofiltration membrane
publisher American Institute of Chemical Engineers
publishDate 2009
url http://eprints.utm.my/id/eprint/13149/
http://dx.doi.org/10.1002/aic.11821
_version_ 1643646129727864832
score 13.211869

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