Solvent resistant nanofiltration (SRNF) membranes based on metal-organic frameworks

Autor:	Luc Alaerts, Ivo F.J. Vankelecom, Michael Maes, Dirk De Vos, Angels Cano-Odena, Subhankar Basu
Rok vydání:	2009
Předmět:	Polydimethylsiloxane Chemical modification Filtration and Separation Permeance Biochemistry Solvent chemistry.chemical_compound Membrane chemistry Chemical engineering Polymer chemistry General Materials Science Thermal stability Polysulfone Nanofiltration Physical and Theoretical Chemistry
Zdroj:	Journal of Membrane Science. 344:190-198
ISSN:	0376-7388
DOI:	10.1016/j.memsci.2009.07.051
Popis:	The incorporation of metal-organic frameworks (MOFs) as fillers in polydimethylsiloxane (PDMS) membranes was investigated. Mixed matrix membranes (MMMs) with MOFs [Cu3(BTC)2], MIL-47, MIL-53(Al) and ZIF-8 as dispersed phases were synthesized and characterized. The membranes were applied in solvent resistant nanofiltration (SRNF), more in particular in the separation of Rose Bengal (RB) from isopropanol. The membranes showed increased permeance but lower retention compared to unfilled membranes. Membranes were characterized with scanning electron microscopy (SEM) where poor adhesion of the fillers to PDMS was observed. Chemical modification of the fillers with N-methyl-N-(trimethylsilyl)-trifluoroacetamide (MSTFA) allowed synthesis of defect-free membranes with higher retention of RB, due to good interaction with fillers and decreased membrane swelling.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::019a137dd6292cf9fd00faa913f3a40b https://doi.org/10.1016/j.memsci.2009.07.051 Zobrazit plný text záznamu Full Text from ScienceDirect