Characterization of commercial water treatment membranes modified via ion beam irradiation

Rama Chennamsetty; Isabel Escobar; Xinglong Xu

doi:10.1016/j.desal.2005.04.118

Characterization of commercial water treatment membranes modified via ion beam irradiation

Rama Chennamsetty
, Isabel Escobar
, Xinglong Xu

Producción científica: Article › revisión exhaustiva

39 Citas (Scopus)

Resumen

A commercial sulfonated polysulfone water treatment membrane was modified by ion beam irradiation. After irradiation, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was used to identify chemical structure changes incurred by the modification. Some of the sulphonic groups on the surface of the membrane were broken due to ion beam irradiation, which resulted in crosslinking of the polymer. These changes modified the surface morphology of the membrane and also decreased the negative charge of the membrane. Previous studies have determined that ion beam irradiation produces no significant changes in membrane permeability along with improvements in selectivity with respect of organic carbon rejection. Thus, this study focused on conducting bench-scale cross-flow filtration experiments to investigate the cake accumulation on the modified membrane. Through ATR-FTIR and atomic force miscroscopy, it was concluded that fouling of the modified membrane was significantly less severe than that of the virgin membrane. Thus, ion beam irradiation was observed to be an effective membrane modification technique.

Idioma original	English
Páginas (desde-hasta)	203-212
Número de páginas	10
Publicación	Desalination
Volumen	188
N.º	1-3
DOI	https://doi.org/10.1016/j.desal.2005.04.118
Estado	Published - feb 5 2006

Nota bibliográfica

Funding Information:
This project was funded by the National Science Foundation grant CTS 03-31778. The authors acknowledge Dr. Peter Simpson (University of Western Ontario) where irradiation was performed and Dr. Mark Wilk for providing membrane samples.

Financiación

This project was funded by the National Science Foundation grant CTS 03-31778. The authors acknowledge Dr. Peter Simpson (University of Western Ontario) where irradiation was performed and Dr. Mark Wilk for providing membrane samples.

Financiadores	Número del financiador
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China	CTS 03-31778
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

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10.1016/j.desal.2005.04.118

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title = "Characterization of commercial water treatment membranes modified via ion beam irradiation",

abstract = "A commercial sulfonated polysulfone water treatment membrane was modified by ion beam irradiation. After irradiation, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was used to identify chemical structure changes incurred by the modification. Some of the sulphonic groups on the surface of the membrane were broken due to ion beam irradiation, which resulted in crosslinking of the polymer. These changes modified the surface morphology of the membrane and also decreased the negative charge of the membrane. Previous studies have determined that ion beam irradiation produces no significant changes in membrane permeability along with improvements in selectivity with respect of organic carbon rejection. Thus, this study focused on conducting bench-scale cross-flow filtration experiments to investigate the cake accumulation on the modified membrane. Through ATR-FTIR and atomic force miscroscopy, it was concluded that fouling of the modified membrane was significantly less severe than that of the virgin membrane. Thus, ion beam irradiation was observed to be an effective membrane modification technique.",

keywords = "Ion beam irradiation, Membrane, Surface modifications",

author = "Rama Chennamsetty and Isabel Escobar and Xinglong Xu",

note = "Funding Information: This project was funded by the National Science Foundation grant CTS 03-31778. The authors acknowledge Dr. Peter Simpson (University of Western Ontario) where irradiation was performed and Dr. Mark Wilk for providing membrane samples.",

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AU - Chennamsetty, Rama

AU - Escobar, Isabel

AU - Xu, Xinglong

N1 - Funding Information: This project was funded by the National Science Foundation grant CTS 03-31778. The authors acknowledge Dr. Peter Simpson (University of Western Ontario) where irradiation was performed and Dr. Mark Wilk for providing membrane samples.

PY - 2006/2/5

Y1 - 2006/2/5

N2 - A commercial sulfonated polysulfone water treatment membrane was modified by ion beam irradiation. After irradiation, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was used to identify chemical structure changes incurred by the modification. Some of the sulphonic groups on the surface of the membrane were broken due to ion beam irradiation, which resulted in crosslinking of the polymer. These changes modified the surface morphology of the membrane and also decreased the negative charge of the membrane. Previous studies have determined that ion beam irradiation produces no significant changes in membrane permeability along with improvements in selectivity with respect of organic carbon rejection. Thus, this study focused on conducting bench-scale cross-flow filtration experiments to investigate the cake accumulation on the modified membrane. Through ATR-FTIR and atomic force miscroscopy, it was concluded that fouling of the modified membrane was significantly less severe than that of the virgin membrane. Thus, ion beam irradiation was observed to be an effective membrane modification technique.

AB - A commercial sulfonated polysulfone water treatment membrane was modified by ion beam irradiation. After irradiation, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) was used to identify chemical structure changes incurred by the modification. Some of the sulphonic groups on the surface of the membrane were broken due to ion beam irradiation, which resulted in crosslinking of the polymer. These changes modified the surface morphology of the membrane and also decreased the negative charge of the membrane. Previous studies have determined that ion beam irradiation produces no significant changes in membrane permeability along with improvements in selectivity with respect of organic carbon rejection. Thus, this study focused on conducting bench-scale cross-flow filtration experiments to investigate the cake accumulation on the modified membrane. Through ATR-FTIR and atomic force miscroscopy, it was concluded that fouling of the modified membrane was significantly less severe than that of the virgin membrane. Thus, ion beam irradiation was observed to be an effective membrane modification technique.

KW - Ion beam irradiation

KW - Membrane

KW - Surface modifications

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Characterization of commercial water treatment membranes modified via ion beam irradiation

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

Acceder al documento

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