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Effect of casting conditions on SMM blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation

This study aims at further improvement and development of the novel hydro–phobic/–philic composite membranes which are made specifically for membrane distillation (MD). This was attempted by studying the effect of the casting conditions during the membrane preparation process by the phase inversion...

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Main Authors: Qtaishat, M., Khayet, M., Matsuura, T., Khulbe, K. C.
Format: Article
Published: Penerbit UTM 2010
Subjects:
Q Science (General)
Online Access:http://eprints.utm.my/id/eprint/25943/
https://amst.utm.my/index.php/amst/article/view/74
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spelling my.utm.259432018-11-30T06:41:13Z http://eprints.utm.my/id/eprint/25943/ Effect of casting conditions on SMM blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation Qtaishat, M. Khayet, M. Matsuura, T. Khulbe, K. C. Q Science (General) This study aims at further improvement and development of the novel hydro–phobic/–philic composite membranes which are made specifically for membrane distillation (MD). This was attempted by studying the effect of the casting conditions during the membrane preparation process by the phase inversion method. Two variables were chosen to study, which are the evaporation time before gelation and the gelation path temperature. Some of the membranes were allowed to evaporate at room temperature for 2 or 3 minutes to study the effect of evaporation time. The temperature of the gelation path was varied to 4°C, 20°C or 60°C in order to study the gelation path temperature effect. The prepared membranes were characterized using gas permeation test, measurement of the liquid entry pressure of water (LEPw), X–ray photoelectron spectroscopy (XPS), contact angle measurements and atomic force microscopy (AFM). The effects of the casting conditions on the membrane morphology were identified, which enabled us to link the membrane morphology to the membrane performance. The membranes were then tested for desalination of 0.5 M NaCl solution by direct contact membrane distillation (DCMD) and the results were compared to commercial polytetraflouroethylene (PTFE) membrane. It was found that the membrane which was prepared with no evaporation time produced better flux than those with evaporation time. Regarding the gelation path temperature; the membrane prepared with gelation path temperature of 4°C was better than those prepared with gelation path temperature of 20 or 60°C. It should be emphasized that the DCMD flux of the membranes prepared with no evaporation time or with a gelation path temperature of 4°C was superior to the commercial one. Furthermore, all the prepared membranes were tested successfully for the desalination application. In other words, no NaCl was detected in the permeate. Penerbit UTM 2010 Article PeerReviewed Qtaishat, M. and Khayet, M. and Matsuura, T. and Khulbe, K. C. (2010) Effect of casting conditions on SMM blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation. Applied Membrane Science & Technology, 11 . pp. 1-8. ISSN 2600-9226 https://amst.utm.my/index.php/amst/article/view/74
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 Q Science (General)
spellingShingle Q Science (General)
Qtaishat, M.
Khayet, M.
Matsuura, T.
Khulbe, K. C.
Effect of casting conditions on SMM blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation
description This study aims at further improvement and development of the novel hydro–phobic/–philic composite membranes which are made specifically for membrane distillation (MD). This was attempted by studying the effect of the casting conditions during the membrane preparation process by the phase inversion method. Two variables were chosen to study, which are the evaporation time before gelation and the gelation path temperature. Some of the membranes were allowed to evaporate at room temperature for 2 or 3 minutes to study the effect of evaporation time. The temperature of the gelation path was varied to 4°C, 20°C or 60°C in order to study the gelation path temperature effect. The prepared membranes were characterized using gas permeation test, measurement of the liquid entry pressure of water (LEPw), X–ray photoelectron spectroscopy (XPS), contact angle measurements and atomic force microscopy (AFM). The effects of the casting conditions on the membrane morphology were identified, which enabled us to link the membrane morphology to the membrane performance. The membranes were then tested for desalination of 0.5 M NaCl solution by direct contact membrane distillation (DCMD) and the results were compared to commercial polytetraflouroethylene (PTFE) membrane. It was found that the membrane which was prepared with no evaporation time produced better flux than those with evaporation time. Regarding the gelation path temperature; the membrane prepared with gelation path temperature of 4°C was better than those prepared with gelation path temperature of 20 or 60°C. It should be emphasized that the DCMD flux of the membranes prepared with no evaporation time or with a gelation path temperature of 4°C was superior to the commercial one. Furthermore, all the prepared membranes were tested successfully for the desalination application. In other words, no NaCl was detected in the permeate.
format Article
author Qtaishat, M.
Khayet, M.
Matsuura, T.
Khulbe, K. C.
author_facet Qtaishat, M.
Khayet, M.
Matsuura, T.
Khulbe, K. C.
author_sort Qtaishat, M.
title Effect of casting conditions on SMM blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation
title_short Effect of casting conditions on SMM blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation
title_full Effect of casting conditions on SMM blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation
title_fullStr Effect of casting conditions on SMM blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation
title_full_unstemmed Effect of casting conditions on SMM blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation
title_sort effect of casting conditions on smm blended polyethersulfone hydro-phobic/philic composite membranes: characteristics and desalination performance in membrane distillation
publisher Penerbit UTM
publishDate 2010
url http://eprints.utm.my/id/eprint/25943/
https://amst.utm.my/index.php/amst/article/view/74
_version_ 1643647633743413248
score 13.211869

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