Self-assembly of a silica–surfactant nanocomposite in a porous alumina membrane
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- 11 April 2004
- journal article
- research article
- Published by Springer Nature in Nature Materials
- Vol. 3 (5) , 337-341
- https://doi.org/10.1038/nmat1107
Abstract
A mesoporous membrane composed of nanochannels with a uniform diameter has a potential use for precise size-exclusive separation of molecules. Here, we report a novel method to form a hybrid membrane composed of silica-surfactant nanocomposite and a porous alumina membrane, by which size-selective transport of molecules across the membrane becomes possible. The nanocomposite formed inside each columnar alumina pore was an assembly of surfactant-templated silica-nanochannels with a channel diameter of 3.4 nm; the channel direction being predominantly oriented along the wall of the columnar alumina pore. Molecules could be transported across the membrane including the silica-surfactant nanocomposite with a capability of nanometre-order size-exclusive separation. Our proposed membrane system has a potential use not only for separation science, but also catalysis and chip technologies.Keywords
This publication has 15 references indexed in Scilit:
- Antibody-Based Bio-Nanotube Membranes for Enantiomeric Drug SeparationsScience, 2002
- Ship-in-a-Bottle Synthesis of Copper Phthalocyanine Molecules within Mesoporous Channels of MCM-41 by a Chemical Vapor Deposition MethodNano Letters, 2001
- Nanotubule-Based Molecular-Filtration MembranesScience, 1997
- Oil-Water Interface Templating of Mesoporous Macroscale StructuresScience, 1996
- Synthesis of oriented films of mesoporous silica on micaNature, 1996
- Formation of Novel Oriented Transparent Films of Layered Silica-Surfactant NanocompositesJournal of the American Chemical Society, 1994
- A new family of mesoporous molecular sieves prepared with liquid crystal templatesJournal of the American Chemical Society, 1992
- Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanismNature, 1992
- Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984)Pure and Applied Chemistry, 1985
- Anodic oxide films on aluminumChemical Reviews, 1969