Back to Search
Start Over
High-performance thin film composite nanofiltration membranes with MoS2 nanosheet interlayer.
- Source :
-
Journal of Membrane Science . Nov2023, Vol. 685, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- High-performance polyamide thin film composite (TFC) nanofiltration membranes have received great attention in recent years. Herein, we report the preparation of TFC nanofiltration membranes by interfacial polymerization using MoS 2 nanosheets as the nanomaterial interlayer. The aqueous monomer and MoS 2 nanosheets are distributed on the surface of microporous membrane substrates by a one-step method. The MoS 2 interlayer improves the uniformity and smoothness of the microporous substrates, helping to form polyamide nanofilms at ultralow monomer concentration. Moreover, the hydrophilic and negatively-charged MoS 2 nanosheets enhance the water permeability and negative charges of the nanofiltration membranes. The composite membranes show both high water permeance of 33.5 L m−2 h−1 bar−1 and Na 2 SO 4 rejection of 97.5%, as well as significantly improved mono-/divalent anions selectivity and antifouling property. It is proved that the interfacial polymerization strategy assisted by the MoS 2 interlayer is effective for preparing high-performance nanofiltration membranes. [Display omitted] • Nanofiltration membranes with MoS 2 nanosheet interlayer are fabricated. • MoS 2 interlayer provides an even platform for interfacial polymerization. • The nanofiltration membrane shows a water permeance of 33.5 L m-2 h-1 bar-1 and a rejection of 97.5% for Na 2 SO 4. • The nanofiltration membrane exhibits excellent long-term stability and antifouling ability. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03767388
- Volume :
- 685
- Database :
- Academic Search Index
- Journal :
- Journal of Membrane Science
- Publication Type :
- Academic Journal
- Accession number :
- 170044327
- Full Text :
- https://doi.org/10.1016/j.memsci.2023.121956