AI Article Synopsis
- PFOA is a nonbiodegradable chemical that persists in the environment and accumulates in water, causing significant environmental problems.
- Researchers developed two types of porous polymers based on calix[4]arene to effectively remove PFOA from water.
- One of these polymers showed impressive performance, with the ability to absorb high amounts of PFOA and could be easily regenerated for multiple uses.
Article Abstract
On account of its nonbiodegradable nature and persistence in the environment, perfluorooctanoic acid (PFOA) accumulates in water resources and poses serious environmental issues in many parts of the world. Here, we present the development of two fluorine-rich calix[4]arene-based porous polymers, and , and demonstrate their utility for the efficient removal of PFOA from water. These materials featured Brunauer-Emmett-Teller (BET) surface areas of up to 450 m g, which is slightly lower than their nonfluorinated counterparts (up to 596 m g). removes PFOA at environmentally relevant concentrations with a high rate constant of 3.80 g mg h and reached an exceptional maximum PFOA uptake capacity of 188.7 mg g. In addition, it could be regenerated by simple methanol wash and reused without a significant decrease in performance.
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| http://dx.doi.org/10.1021/acsami.0c13400 | DOI Listing |
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