Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 40, Pages 34464-34474Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b10550
Keywords
thin-film composite; graphene oxide; multiwall carbon nanotubes; forward osmosis; interfacial polymerization
Funding
- Australian Research Council [H170100009, DP14103535]
- Australian Research Council
- Monash University
- Monash Cente
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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/MIA/ENT 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/MVVCNT 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.
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