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.
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.
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|Item Type:||Journal Article|
|Keywords:||Ceramics, Membranes, separation, Nanofibers|
|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 04:25|
|Last Modified:||25 Feb 2013 02:50|
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