Abstract
<h2>Summary</h2> Per- and poly-fluoroalkyl carboxylic acids (PFCAs) accumulate in water resources and pose serious environmental and health threats due to their non-biodegradable nature and long environmental persistence times. Strategies for the simultaneous detection and removal of PFCAs are urgently needed to address this concern. Here, we report a porous adaptive luminescent zinc-metallacage (<b>Zn-Cage</b>) crystal that exhibits high sensitivity for PFCAs in contaminated water and which permits their monitoring with a limit of detection (LOD) as low as 57 nM. A smartphone with a color-scanning application allowed for the real-time/<i>in situ</i> visual detection of PFCAs at various concentrations. The present porous adaptive <b>Zn-Cage</b> allowed representative PFCAs, namely perfluorohexanoic acid (PFHxA), perfluorooctanoic acid (PFOA), and perfluorodecanoic acid (PFDA), to be removed from simulated contaminated water samples with high absorption efficiency.
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