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Sol-gel preparation of PAA-g-PVDF/TiO2 nanocomposite hollow fiber membranes with extremely high water flux and improved antifouling property
Zhang, Feng; Zhang, Wenbin; Yu, Yang; Deng, Bo; Li, Jingye; Jin, Jian
2013
Source PublicationJOURNAL OF MEMBRANE SCIENCE
ISSN0376-7388
Volume432Pages:CONCATENATE(Sheet1!I310,-Sheet1!J310)
AbstractHigh permeability and antifouling property are important performance of filtration membranes for reaching the requirement of real application. In this work, poly(acrylic acid) grafted PVDF (G-PVDF)/TiO2 nanocomposite hollow fiber ultrafiltration membranes were fabricated by combining tetrabutyl titanate in-situ sol-gel process with liquid-induced phase separation. Energy dispersive X-ray (EDX) and EDX mapping scanning spectra confirmed the formation of TiO2 component and uniformly dispersion of TiO2 nanoparticles in nanocomposite membranes with ultrafine size when the TiO2 content was less than 3 wt%. The effect of TiO2 on the membrane performance was systematically investigated. The G-PVDF/TiO2 nanocomposite membranes exhibited extremely high water permeation, improved antifouling property and rejection efficiency as compared to PVDF and G-PVDF membranes. In case of similar to 1 wt% TiO2 content, the water flux of G-PVDF/TiO2 nanocomposite membranes reached 974 L/m(2) h under 0.1 MPa, which was more than four times of that of PVDF membranes. Simultaneously, G-PVDF/TiO2 nanocomposite membranes displayed greatly reduced amount of protein adsorption to be 24 mu g/cm(2), which is a seventh of that of PVDF membranes. Two cycles of flux recovery test also indicated that G-PVDF/TiO2 nanocomposite membranes possessed better antifouling property and stability. More important is that the incorporation of TiO2 nanoparticles did not weaken the mechanical strength of the membranes. The superior performance of our G-PVDF/TiO2 nanocomposite hollow fiber ultrafiltration membranes offers a great potential for practical application. (C) 2013 Elsevier B.V. All rights reserved.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000315281700003
Citation statistics
Cited Times:117[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13909
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Zhang, Feng,Zhang, Wenbin,Yu, Yang,et al. Sol-gel preparation of PAA-g-PVDF/TiO2 nanocomposite hollow fiber membranes with extremely high water flux and improved antifouling property[J]. JOURNAL OF MEMBRANE SCIENCE,2013,432:CONCATENATE(Sheet1!I310,-Sheet1!J310).
APA Zhang, Feng,Zhang, Wenbin,Yu, Yang,Deng, Bo,Li, Jingye,&Jin, Jian.(2013).Sol-gel preparation of PAA-g-PVDF/TiO2 nanocomposite hollow fiber membranes with extremely high water flux and improved antifouling property.JOURNAL OF MEMBRANE SCIENCE,432,CONCATENATE(Sheet1!I310,-Sheet1!J310).
MLA Zhang, Feng,et al."Sol-gel preparation of PAA-g-PVDF/TiO2 nanocomposite hollow fiber membranes with extremely high water flux and improved antifouling property".JOURNAL OF MEMBRANE SCIENCE 432(2013):CONCATENATE(Sheet1!I310,-Sheet1!J310).
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