Fabrication of SPES/Nano-TiO2 Composite Ultrafiltration Membrane and Its Anti-fouling Mechanism

CIESC Journal ›› 2011, Vol. 19 ›› Issue (1): 45-51.

Fabrication of SPES/Nano-TiO₂ Composite Ultrafiltration Membrane and Its Anti-fouling Mechanism

罗明良, 温庆志, 刘佳林, 刘洪见, 贾自龙

College of Petroleum Engineering, China University of Petroleum(East China), Qingdao 266555, China

收稿日期:2009-12-08 修回日期:2010-09-20 出版日期:2011-02-28 发布日期:2011-02-28
通讯作者: LUO Mingliang, E-mail: yfsailing_wxg@163.com
基金资助:
Supported by the Natural Science Foundation of Shandong Province(Q2007B01)

Fabrication of SPES/Nano-TiO₂ Composite Ultrafiltration Membrane and Its Anti-fouling Mechanism

LUO Mingliang, WEN Qingzhi, LIU Jialin, LIU Hongjian, JIA Zilong

College of Petroleum Engineering, China University of Petroleum(East China), Qingdao 266555, China

Received:2009-12-08 Revised:2010-09-20 Online:2011-02-28 Published:2011-02-28
Supported by:
Supported by the Natural Science Foundation of Shandong Province(Q2007B01)

摘要/Abstract

摘要： Membrane fouling is one of the major obstacles for reaching a high flux over a prolonged period of ultrafiltration(UF)process.In this study,a sulfonated-polyethersulfone(SPES)/nano-TiO₂ composite UF membrane with good anti-fouling performance was fabricated by phase inversion and self-assembly methods.The TiO₂ nanoparticle self-assembly on the SPES membrane surface was confirmed by X-ray photoelectron spectroscopy (XPS)and FT-IR spectrometer.The morphology and hydrophilicity were characterized by scanning electron microscopy(SEM),atomic force microscopy(AFM)and contact angle goniometer,respectively.The anti-fouling mechanism of composite UF membrane was discussed through the analysis of the micro-structure and component of UF membrane surface.The results showed that the TiO₂ content and the micro-structure of the composite UF membrane surface had great influence on the separation and anti-fouling performance.

关键词: anti-fouling, ultrafiltration membrane, sulfonated-polyethersulfone, TiO₂ nanoparticle, phase inversion, self-assembly

Abstract: Membrane fouling is one of the major obstacles for reaching a high flux over a prolonged period of ultrafiltration(UF)process.In this study,a sulfonated-polyethersulfone(SPES)/nano-TiO₂ composite UF membrane with good anti-fouling performance was fabricated by phase inversion and self-assembly methods.The TiO₂ nanoparticle self-assembly on the SPES membrane surface was confirmed by X-ray photoelectron spectroscopy (XPS)and FT-IR spectrometer.The morphology and hydrophilicity were characterized by scanning electron microscopy(SEM),atomic force microscopy(AFM)and contact angle goniometer,respectively.The anti-fouling mechanism of composite UF membrane was discussed through the analysis of the micro-structure and component of UF membrane surface.The results showed that the TiO₂ content and the micro-structure of the composite UF membrane surface had great influence on the separation and anti-fouling performance.

Key words: anti-fouling, ultrafiltration membrane, sulfonated-polyethersulfone, TiO₂ nanoparticle, phase inversion, self-assembly

罗明良, 温庆志, 刘佳林, 刘洪见, 贾自龙. Fabrication of SPES/Nano-TiO₂ Composite Ultrafiltration Membrane and Its Anti-fouling Mechanism[J]. CIESC Journal, 2011, 19(1): 45-51.

LUO Mingliang, WEN Qingzhi, LIU Jialin, LIU Hongjian, JIA Zilong. Fabrication of SPES/Nano-TiO₂ Composite Ultrafiltration Membrane and Its Anti-fouling Mechanism[J]. , 2011, 19(1): 45-51.

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Fabrication of SPES/Nano-TiO₂ Composite Ultrafiltration Membrane and Its Anti-fouling Mechanism

Fabrication of SPES/Nano-TiO₂ Composite Ultrafiltration Membrane and Its Anti-fouling Mechanism

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