Physical Removal of Anions from Aqueous Media by Means of a Macrocycle-Containing Polymeric Network
Type
ArticleAuthors
Ji, XiaofanWu, Ren-Tsung
Long, Lingliang

Guo, Chenxing
Khashab, Niveen M.

Huang, Feihe

Sessler, Jonathan L.

KAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Science Program
Physical Science and Engineering (PSE) Division
Smart Hybrid Materials (SHMs) lab
Date
2018-02-19Online Publication Date
2018-02-19Print Publication Date
2018-02-28Permanent link to this record
http://hdl.handle.net/10754/627273
Metadata
Show full item recordAbstract
Reported here is a hydrogel-forming polymer network that contains a water-soluble tetracationic macrocycle. Upon immersion of this polymer network in aqueous solutions containing various inorganic and organic salts, changes in the physical properties are observed that are consistent with absorption of the constituent anions into the polymer network. This absorption is ascribed to host-guest interactions involving the tetracationic macrocyclic receptor. Removal of the anions may then be achieved by lifting the resulting hydrogels out of the aqueous phase. Treating the anion-containing hydrogels with dilute HCl leads to the protonation-induced release of the bound anions. This allows the hydrogels to be recycled for reuse. The present polymer network thus provides a potentially attractive approach to removing undesired anions from aqueous environments.Citation
Ji X, Wu R-T, Long L, Guo C, Khashab NM, et al. (2018) Physical Removal of Anions from Aqueous Media by Means of a Macrocycle-Containing Polymeric Network. Journal of the American Chemical Society 140: 2777–2780. Available: http://dx.doi.org/10.1021/jacs.7b13656.Sponsors
The American Chemical Society Petroleum Research Fund (Grant No. 56925-ND7 to J.L.S.), the Robert A. Welch Foundation (F-0018 to J.L.S.), the National Basic Research Program (2013CB834502 to F.H.), the NSFC/China (91527301, 21434005 to F.H.), and the collaborative research grant (CRG 6 to N.M.K.) of King Abdullah University of Science and Technology are acknowledged for financial support.Publisher
American Chemical Society (ACS)PubMed ID
29437394Additional Links
https://pubs.acs.org/doi/full/10.1021/jacs.7b13656ae974a485f413a2113503eed53cd6c53
10.1021/jacs.7b13656
Scopus Count
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