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Thin-Film Nanocomposite Forward-Osmosis Membranes on Hydrophilic Microfiltration Support with an Intermediate Layer of Graphene Oxide and Multiwall Carbon Nanotube
- Source :
- ACS Applied Materials & Interfaces; September 2018, Vol. 10 Issue: 40 p34464-34474, 11p
- Publication Year :
- 2018
-
Abstract
- A novel thin-film nanocomposite forward-osmosis (FO) membrane was fabricated on hydrophilic nylon microfiltration (MF) support by interfacial polymerization with the assistance of an intermediate layer of graphene oxide and multiwall carbon nanotube (GO/MWCNT). The chemical composition, structure, and surface properties of the synthesized FO membranes were studied using various characterization methods. It was found that the GO/MWCNT composite layer not only provided ultrafast nanochannels for water transport but also reduced the thickness of the polyamide layer by up to 60%. As a result, the novel FO membrane exhibited a higher water flux and lower reverse salt flux compared with the membrane synthesized without the GO/MWCNT intermediate layer. This method offers promising opportunities to fabricate thin-film composite membranes on microfiltration substrates for FO application with inhibited concentration polarization phenomenon and expected separation performance.
Details
- Language :
- English
- ISSN :
- 19448244
- Volume :
- 10
- Issue :
- 40
- Database :
- Supplemental Index
- Journal :
- ACS Applied Materials & Interfaces
- Publication Type :
- Periodical
- Accession number :
- ejs46510593
- Full Text :
- https://doi.org/10.1021/acsami.8b10550