The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.
High Performance Nanofiltration Membrane for Effective Removal of Perfluoroalkyl Substances at High Water Recovery
Open accessAbstract
Abstract We demonstrate the fabrication of a loose, negatively charged nanofiltration (NF) membrane with tailored selectivity for the removal of perfluoroalkyl substances with reduced scaling potential. A selective polyamide layer was fabricated on top of a poly(ether sulfone) support via interfacial polymerization of trimesoyl chloride and a mixture of piperazine and bipiperidine. Incorporating high molecular weight bipiperidine during the interfacial polymerization enables the formation of a loose, nanoporous selective layer structure. The fabricated NF membrane possessed a negative surface charge and had a pore diameter of ∼1.2 nm, much larger than a widely used commercial NF membrane (i.e., NF270 with pore diameter of ∼0.8 nm). We evaluated the performance of the fabricated NF membrane for the rejection of different salts (i.e., NaCl, CaCl2, and Na2SO4) and perfluorooctanoic acid (PFOA). The fabricated NF membrane exhibited a high retention of PFOA (∼90%) while allowing high passage of scale-forming cations (i.e., calcium). We further performed gypsum scaling experiments to demonstrate lower scaling potential of the fabricated loose porous NF membrane compared to NF membranes having a dense selective layer under solution conditions simulating high water recovery. Our results demonstrate that properly designed NF membranes are a critical component of a high recovery NF system, which provide an efficient and sustainable solution for remediation of groundwater contaminated with perfluoroalkyl substances.
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Cites
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Cited by
Li, F., Duan, J., Tian, S., Ji, H., Zhu, Y., Wei, Z., & Zhao, D. (2020) · Chemical Engineering Journal · doi:10.1016/j.cej.2019.122506 · Cited by 707
Intrapore energy barriers govern ion transport and selectivity of desalination membranes
Zhou, X., Wang, Z., Epsztein, R., Zhan, C., Li, W., Fortner, J. D., Pham, T. A., Kim, J.-H., & Elimelech, M. (2020) · Science Advances · doi:10.1126/sciadv.abd9045 · Cited by 367
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Metadata
- Authors
- Boo, C., Wang, Y., Zucker, I., Choo, Y., Osuji, C. O., & Elimelech, M.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-05-31
- Volume
- 52
- Issue
- 13
- Pages
- 7279-7288
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2806928377
- Cited by
- 357
- References
- 43
- FWCI
- 10.29
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Boo, C., Wang, Y., Zucker, I., Choo, Y., Osuji, C. O., & Elimelech, M. (2018). High Performance Nanofiltration Membrane for Effective Removal of Perfluoroalkyl Substances at High Water Recovery. Environmental Science & Technology. https://doi.org/10.1021/acs.est.8b01040
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