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Membranes 2016, 6(1), 5; doi:10.3390/membranes6010005

YSZ-Reinforced Alumina Multi-Channel Capillary Membranes for Micro-Filtration

Department of Chemical Engineering, Imperial College London, London SW7 2AZ, UK
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Author to whom correspondence should be addressed.
Academic Editors: Alberto Figoli and Alexey Volkov
Received: 2 November 2015 / Revised: 23 December 2015 / Accepted: 25 December 2015 / Published: 30 December 2015
(This article belongs to the Special Issue Membranes for Environmental Applications)
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Abstract

The combined phase-inversion and sintering method not only produces ceramic hollow fibre membranes with much lower fabrication costs than conventional methods, but these membranes can also be designed to have greatly reduced transport resistances for filtration processes. The bottleneck of this technique is the weak mechanical property of the fibres, due to the small dimensions and the brittle nature of the ceramic materials. In this study, yttrium stabilised zirconia (YSZ) reinforced alumina seven-channel capillary microfiltration membranes were prepared with a pore size of ~230 nm and their mechanical property and permeation characteristics were studied. It is found that the addition of YSZ can effectively enhance the mechanical property of the membrane and also increase pure water permeation flux. The Al2O3-YSZ seven-channel capillary membranes could reach a fracture load of 23.4 N and a bending extension of 0.54 mm when being tested with a 6 cm span, to meet the requirements for most industrial microfiltration applications. View Full-Text
Keywords: ceramic membranes; YSZ; alumina; multi-channel; phase inversion ceramic membranes; YSZ; alumina; multi-channel; phase inversion
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wang, B.; Lee, M.; Li, K. YSZ-Reinforced Alumina Multi-Channel Capillary Membranes for Micro-Filtration. Membranes 2016, 6, 5.

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