Metal-organic frameworks (MOFs)

Metal-organic frameworks are extended networks formed by metal ions or metal clusters connected through organic molecules called ligands or linkers. Their structures contain potential internal cavities, which can provide substantial surface area for capturing or separating substances. Researchers can adjust the metal components, organic linkers and pore chemistry to target particular molecules. In PFAS treatment, selected MOFs are being investigated as adsorbents that capture contaminants from water. Capture does not itself destroy PFAS, and suitability depends on water stability, safety, performance and manufacturing feasibility. MOFs are commonly crystalline, although crystallinity is not required by the formal IUPAC definition.