Effect of ion beam irradiation on two nanofiltration water treatment membranes

Rama Chennamsetty; Isabel Escobar

doi:10.1080/01496390802414619

Effect of ion beam irradiation on two nanofiltration water treatment membranes

Rama Chennamsetty
, Isabel Escobar

Producción científica: Article › revisión exhaustiva

9 Citas (Scopus)

Resumen

Ion beam irradiation has long been recognized as an effective method for the synthesis and modification of diverse materials, including polymers. Ion beam irradiation is the bombardment of a substance with energetic ions. When the ions penetrate through the surface of a membrane, they may eliminate tall peaks and deep valleys, resulting in an overall reduction in surface roughness. Two nanofiltration membranes, one with a sulfonated polysulfone selective layer and the other with an aromatic polyamide selective layer, were used to study the effects of ion beam irradiation on surface morphology, microstructure, and performance. A beam of 25keV H+ ions with four irradiation fluences (11013ions/cm2, 51013ions/cm2, 11014ions/cm2 and 51014ions/cm2) was used for ion beam irradiation of the membrane. Atomic face microscopy (AFM) analysis show that the roughness of the membranes decreased after irradiation. An increase in flux after ion beam irradiation was also observed. Hydrophobicity, pore size distribution, and selectivity of the membrane were not affected by ion beam irradiation.

Idioma original	English
Páginas (desde-hasta)	4009-4029
Número de páginas	21
Publicación	Separation Science and Technology
Volumen	43
N.º	16
DOI	https://doi.org/10.1080/01496390802414619
Estado	Published - dic 2008

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) and the Michigan Ion Beam Laboratory (University of Michigan) where irradiation was performed and Dr. Mark Wilf provided the 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) and the Michigan Ion Beam Laboratory (University of Michigan) where irradiation was performed and Dr. Mark Wilf provided the 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
Process Chemistry and Technology
Filtration and Separation

Acceder al documento

10.1080/01496390802414619

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title = "Effect of ion beam irradiation on two nanofiltration water treatment membranes",

abstract = "Ion beam irradiation has long been recognized as an effective method for the synthesis and modification of diverse materials, including polymers. Ion beam irradiation is the bombardment of a substance with energetic ions. When the ions penetrate through the surface of a membrane, they may eliminate tall peaks and deep valleys, resulting in an overall reduction in surface roughness. Two nanofiltration membranes, one with a sulfonated polysulfone selective layer and the other with an aromatic polyamide selective layer, were used to study the effects of ion beam irradiation on surface morphology, microstructure, and performance. A beam of 25keV H+ ions with four irradiation fluences (11013ions/cm2, 51013ions/cm2, 11014ions/cm2 and 51014ions/cm2) was used for ion beam irradiation of the membrane. Atomic face microscopy (AFM) analysis show that the roughness of the membranes decreased after irradiation. An increase in flux after ion beam irradiation was also observed. Hydrophobicity, pore size distribution, and selectivity of the membrane were not affected by ion beam irradiation.",

keywords = "Ion fluence, Irradiation, Membrane surface modifications, Surface properties, Transport properties",

author = "Rama Chennamsetty and Isabel Escobar",

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) and the Michigan Ion Beam Laboratory (University of Michigan) where irradiation was performed and Dr. Mark Wilf provided the membrane samples.",

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AU - Escobar, Isabel

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) and the Michigan Ion Beam Laboratory (University of Michigan) where irradiation was performed and Dr. Mark Wilf provided the membrane samples.

PY - 2008/12

Y1 - 2008/12

N2 - Ion beam irradiation has long been recognized as an effective method for the synthesis and modification of diverse materials, including polymers. Ion beam irradiation is the bombardment of a substance with energetic ions. When the ions penetrate through the surface of a membrane, they may eliminate tall peaks and deep valleys, resulting in an overall reduction in surface roughness. Two nanofiltration membranes, one with a sulfonated polysulfone selective layer and the other with an aromatic polyamide selective layer, were used to study the effects of ion beam irradiation on surface morphology, microstructure, and performance. A beam of 25keV H+ ions with four irradiation fluences (11013ions/cm2, 51013ions/cm2, 11014ions/cm2 and 51014ions/cm2) was used for ion beam irradiation of the membrane. Atomic face microscopy (AFM) analysis show that the roughness of the membranes decreased after irradiation. An increase in flux after ion beam irradiation was also observed. Hydrophobicity, pore size distribution, and selectivity of the membrane were not affected by ion beam irradiation.

AB - Ion beam irradiation has long been recognized as an effective method for the synthesis and modification of diverse materials, including polymers. Ion beam irradiation is the bombardment of a substance with energetic ions. When the ions penetrate through the surface of a membrane, they may eliminate tall peaks and deep valleys, resulting in an overall reduction in surface roughness. Two nanofiltration membranes, one with a sulfonated polysulfone selective layer and the other with an aromatic polyamide selective layer, were used to study the effects of ion beam irradiation on surface morphology, microstructure, and performance. A beam of 25keV H+ ions with four irradiation fluences (11013ions/cm2, 51013ions/cm2, 11014ions/cm2 and 51014ions/cm2) was used for ion beam irradiation of the membrane. Atomic face microscopy (AFM) analysis show that the roughness of the membranes decreased after irradiation. An increase in flux after ion beam irradiation was also observed. Hydrophobicity, pore size distribution, and selectivity of the membrane were not affected by ion beam irradiation.

KW - Ion fluence

KW - Irradiation

KW - Membrane surface modifications

KW - Surface properties

KW - Transport properties

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SN - 0149-6395

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JO - Separation Science and Technology

JF - Separation Science and Technology

IS - 16

ER -

Effect of ion beam irradiation on two nanofiltration water treatment membranes

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

Acceder al documento

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