Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 141, Issue 34, Pages 13315-13319Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.9b06749
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Funding
- NSF [DMR-1644779, CHE-1048773]
- State of Florida
- NSF Graduate Research Fellowship [DGE-1842165]
- Camille and Henry Dreyfus Foundation Postdoctoral Program in Environmental Chemistry
- Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource [NSF ECCS-1542205]
- MRSEC program at the Materials Research Center [NSF DMR-1720139]
- Keck Foundation
- State of Illinois
- International Institute for Nanotechnology (IIN)
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Disinfection byproducts such as trihalomethanes are commonly found in drinking water. Trihalomethanes are formed upon chlorination of natural organic matter found in many drinking water sources. Inspired by molecular CHCl3 subset of cavitand host-guest complexes, we designed porous polymers composed of resorcinarene receptors. These materials show higher affinity for halomethanes than a specialty activated carbon used for trihalomethane removal. The cavitand polymers show similar removal kinetics as activated carbon and have high capacity (49 mg g(-1) of CHCl3). These materials maintain their performance in drinking water and can be thermally regenerated. Cavitand polymers also outperform commercial resins for 1,4-dioxane adsorption, which contaminates many water sources. These materials show promise for water treatment and demonstrate the value of using supramolecular receptors to design adsorbents for water purification.
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