Complexation induced phase separation: preparation of composite membranes with a nanometer thin dense skin loaded with metal ions
Type
ArticleKAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Engineering Program
Physical Science and Engineering (PSE) Division
Date
2015-04-27Online Publication Date
2015-04-27Print Publication Date
2015-05-13Permanent link to this record
http://hdl.handle.net/10754/550724
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Show full item recordAbstract
We present the development of a facile phase-inversion method for forming asymmetric membranes with a precise high metal ion loading capacity in only the dense layer. The approach combines the use of macromolecule-metal intermolecular complexes to form the dense layer of asymmetric membranes with nonsolvent-induced phase separation to form the porous support. This allows the independent optimization of both the dense layer and porous support while maintaining the simplicity of a phase-inversion process. Moreover, it facilitates control over (i) the thickness of the dense layer throughout several orders of magnitude—from less than 15 nm to more than 6 μm, (ii) the type and amount of metal ions loaded in the dense layer, (iii) the morphology of the membrane surface, and (iv) the porosity and structure of the support. This simple and scalable process provides a new platform for building multifunctional membranes with a high loading of well-dispersed metal ions in the dense layer.Citation
Complexation induced phase separation: preparation of composite membranes with a nanometer thin dense skin loaded with metal ions 2015:150421125443000 Nano LettersPublisher
American Chemical Society (ACS)Journal
Nano LettersPubMed ID
25897684Additional Links
http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.5b00275ae974a485f413a2113503eed53cd6c53
10.1021/acs.nanolett.5b00275
Scopus Count
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