Exceptionally High Perfluorooctanoic Acid Uptake in Water by a Zirconium-Based Metal-Organic Framework through Synergistic Chemical and Physical Adsorption.

ABSTRACT: Perfluorooctanoic acid (PFOA) is an environmental contaminant ubiquitous in water resources, which as a xenobiotic and carcinogenic agent, severely endangers human health. The development of techniques for its efficient removal is therefore highly sought after. Herein, we demonstrate an unprecedented zirconium-based MOF (PCN-999) possessing Zr₆ and biformate-bridged (Zr₆)₂ clusters simultaneously, which exhibits an exceptional PFOA uptake of 1089 mg/g (2.63 mmol/g), representing a ca. 50% increase over the previous record for MOFs. Single-crystal X-ray diffraction studies and computational analysis revealed that the (Zr₆)₂ clusters offer additional open coordination sites for hosting PFOA. The coordinated PFOAs further enhance the inte

SUBMITTER: Liang RR 

PROVIDER: S-EPMC11009951 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature