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High-performance ceramic membranes with a separation layer of metal oxide nanofibers

Ke, Xuebin, Zhu, Huai Yong, Gao, Xueping, Liu, Jiang-Wen, & Zheng, Zhanfeng (2007) High-performance ceramic membranes with a separation layer of metal oxide nanofibers. Advanced Materials, 19(6), pp. 785-790.

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Abstract

In conventional fabrication of ceramic separation membranes, the particulate sols are applied onto porous supports. Major structural deficiencies under this approach are pin-holes and cracks, and the dramatic losses of flux when pore sizes are reduced to enhance selectivity. We have overcome these structural deficiencies by constructing hierarchically structured separation layer on a porous substrate using lager titanate nanofibers and smaller boehmite nanofibers. This yields a radical change in membrane texture. The resulting membranes effectively filter out species larger than 60 nm at flow rates orders of magnitude greater than conventional membranes. This reveals a new direction in membrane fabrication.

Impact and interest:

52 citations in Scopus
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48 citations in Web of Science®

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287 since deposited on 14 Oct 2009
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ID Code: 27969
Item Type: Journal Article
Keywords: Ceramics, Membranes, separation, Nanofibers
DOI: 10.1002/adma.200601984
ISSN: 0935-9648
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Deposited On: 14 Oct 2009 14:25
Last Modified: 25 Feb 2013 12:50

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