Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jeurceramsoc.2020.07.007
Title: Surface engineered alumina microfiltration membranes based on rationally constructed core-shell particles
Authors: Gu Q. 
Ng T.C.A. 
Zang W. 
Zhang L. 
Lyu Z. 
Zhang Z. 
Ng H.Y. 
Wang J. 
Keywords: Antifouling properties
Ceramic membranes
Core-shell particles
Surface engineering
Water permeability
Issue Date: 2-Jul-2020
Publisher: Elsevier Ltd
Citation: Gu Q., Ng T.C.A., Zang W., Zhang L., Lyu Z., Zhang Z., Ng H.Y., Wang J. (2020-07-02). Surface engineered alumina microfiltration membranes based on rationally constructed core-shell particles. Journal of the European Ceramic Society 40 (15) : 5951-5958. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jeurceramsoc.2020.07.007
Abstract: The surface engineered alumina microfiltration membranes were directly realized based on the rationally designed core-shell particles. Specifically, a thin SiO2 layer was deposited on the Al2O3 particles, and the thus-obtained core-shell particles were then assembled on porous substrates to form the selective layer. The surface of Al2O3@SiO2 core-shell particles was demonstrated to be negatively charged. Benefiting from the SiO2 nanolayers, the membranes consisting of the core-shell structured particles showed improved surface hydrophilicity, water permeability and antifouling properties together with a well-maintained porous structure. Notably, the core-shell membranes presented increased water permeance of 1377.3 ± 18.0 LMH along with a reduction of about 10 % in organic irreversible fouling, compared with the pristine alumina membranes (927.3 ± 8.0 LMH). The surface engineering strategy based on the rationally designed ceramic powders would pave a broad avenue to fabricate highly permeable and antifouling ceramic membranes for water and wastewater treatment. © 2020 Elsevier Ltd
Source Title: Journal of the European Ceramic Society
URI: https://scholarbank.nus.edu.sg/handle/10635/183621
ISSN: 09552219
DOI: 10.1016/j.jeurceramsoc.2020.07.007
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