The abstract is read at the publisher; the summary is JClub's.
Photo-reversible defect complexation in defective UiO-67 boosts photo-modulated CO2 working capacity by 83%, reaching 1.1 mmol g−1 via UV/visible switching of MC–Zr binding sites.
- Why it matters: Light-driven adsorption in framework materials is limited by modest working capacities, and existing mechanisms often rely mainly on pore-geometry changes rather than dynamically tuning active binding sites.
- What they did: Coordinatively unsaturated Zr sites in defective UiO-67 are used as reversible binding sites for a grafted spiropyran photoswitch, where UV converts SP to MC that coordinates an additional open Zr site; visible light reverses it, with CO2 uptake and metal-cation uptake used to test binding-site availability.
- The result: The MC–Zr complexation mechanism is supported by DFT and multimodal XPS and maintains performance across multiple photocycles, nearly doubling capacity versus the non-switching structural analog P-UiO.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.