Template-particle stabilized bicontinuous emulsion yielding controlled assembly of hierarchical high-flux filtration membranes
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Author (Corporation)
Publication date
2015
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Type
01A - Journal article
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Parent work
ACS Applied Materials & Interfaces
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Volume
7
Issue / Number
1
Pages / Duration
611–617
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American Chemical Society
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Abstract
A novel solvent-evaporation-based process that exploits template-particle stabilized bicontinuous emulsions for the formation of previously unreached membrane morphologies is reported in this article. Porous membranes have a wide range of applications spanning from water filtration, pharmaceutical purification, and battery separators to scaffolds for tissue engineering. Different situations require different membrane morphologies including various pore sizes and pore gradients. However, most of the previously reported membrane preparation procedures are restricted to specific morphologies and morphology alterations require an extensive optimization process. The tertiary system presented in this article, which consists of a poly(ether sulfone)/dimethylacetamide (PES/DMAc) solution, glycerol, and ZnO-nanoparticles, allows simple and exact tuning of pore diameters ranging from sub-20 nm, up to 100 nm. At the same time, the pore size gradient is controlled from 0 up to 840%/μm yielding extreme asymmetry. In addition to structural analysis, water flux rates of over 5600 L m–2 h–1 are measured for membranes retaining 45 nm silica beads.
Keywords
Alcohols, Layers, hierarchical membranes, template-particles
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ISBN
ISSN
1944-8244
1944-8252
1944-8252
Language
English
Created during FHNW affiliation
No
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Publication status
Published
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Peer review of the complete publication
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Closed
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Citation
Hess, S. C., Kohll, A. X., Raso, R., Schumacher, C. M., Grass, R. N., & Stark, W. J. (2015). Template-particle stabilized bicontinuous emulsion yielding controlled assembly of hierarchical high-flux filtration membranes. ACS Applied Materials & Interfaces, 7(1), 611–617. https://doi.org/10.1021/am506737n