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Selective Ion Penetration of Graphene Oxide Membranes
Abstract
The selective ion penetration and water purification properties of freestanding graphene oxide (GO) membranes are demonstrated. Sodium salts permeated through GO membranes quickly, whereas heavy-metal salts infiltrated much more slowly. Interestingly, copper salts were entirely blocked by GO membranes, and organic contaminants also did not infiltrate. The mechanism of the selective ion-penetration properties of the GO membranes is discussed. The nanocapillaries formed within the membranes were responsible for the permeation of metal ions, whereas the coordination between heavy-metal ions with the GO membranes restricted the passage of the ions. Finally, the penetration processes of hybrid aqueous solutions were investigated; the results revealed that sodium salts can be separated effectively from copper salts and organic contaminants. The presented results demonstrate the potential applications of GO in areas such as barrier separation and water purification.
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Cites
Electric Field Effect in Atomically Thin Carbon Films
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Zhang, Y., Dubonos, S. V., Grigorieva, I. V., & Firsov, A. A. (2004) · Science · doi:10.1126/science.1102896 · Cited by 66,834
Cited by
Sun, P., Wang, K., & Zhu, H. (2016) · Advanced Materials · doi:10.1002/adma.201502595 · Cited by 668
Self-citationDesign principles of ion selective nanostructured membranes for the extraction of lithium ions
Razmjou, A., Asadnia, M., Hosseini, E., Habibnejad Korayem, A., & Chen, V. (2019) · Nature Communications · doi:10.1038/s41467-019-13648-7 · Cited by 616
2D Laminar Membranes for Selective Water and Ion Transport
Kang, Y., Xia, Y., Wang, H., & Zhang, X. (2019) · Advanced Functional Materials · doi:10.1002/adfm.201902014 · Cited by 325
Nanotechnology-based water quality management for wastewater treatment
Madhura, L., Singh, S., Kanchi, S., Sabela, M., Bisetty, K., & Inamuddin (2019) · Environmental Chemistry Letters · doi:10.1007/s10311-018-0778-8 · Cited by 167
Metadata
- Authors
- Sun, P., Zhu, M., Wang, K., Zhong, M., Wei, J., Wu, D., Xu, Z., & Zhu, H.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-12-12
- Volume
- 7
- Issue
- 1
- Pages
- 428-437
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W1997159284
- Cited by
- 742
- References
- 1
- FWCI
- 15.17
- Type
- journal article
- Language
- en
- Open access
- closed
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