A zirconium metal-organic framework (MOF) PCN-222 was postsynthetically modified with diphenylphosphinic acid, resulting in an increased stability when activated from water and 4 times higher photosensitizing properties for singlet oxygen production. The phosphinic acid did not compromise the crystallinity of the MOF but made strong bonds with the zirconia secondary building units.

Porous metal-organic frameworks (MOFs) have excellent characteristics for the adsorptive removal of environmental pollutants. Herein, we introduce a new series of highly stable MOFs, constructed using Fe 3+ and Al 3+ metal ions and bisphosphinate linkers. The isoreticular design leads to ICR-2, ICR-4, ICR-6, and ICR-7 MOFs with a honeycomb arrangement of linear pores, surface areas up to 1360 m 2 g -1 , and high solvothermal stability. In most cases, their sorption capacity is retained even after 24 h reflux in water. The choice of the linkers allows fine tuning of the pore sizes and the chemical nature of the pores. This feature can be utilized for optimization of host-guest interactions between molecules and pore walls. Water pollution by various endocrine disrupting chemicals has been considered as a global threat to public health. In this work, we proved that the chemical stability and the hydrophobic nature of the synthesized series of MOFs result in remarkable sorption properties of these materials for neurodisruptor bisphenol A.

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