Quadruple Hydrogen‐Bonded Supramolecular Polymers Based on Tröger's Base for Efficient Iodine Capture

ABSTRACT With the extensive use of nuclear energy, the disposal of radioactive iodine waste has become an issue in the energy industry. Herein, we reported a series of quadruple hydrogen‐bonded supramolecular polymers combining 2‐ureido‐4[1 H ]‐pyrimidinone (UPy) with Tröger's base (TB) for iodine adsorption: TB‐UPys, demonstrated a volatile iodine adsorption capacity of 4 g·g −1 , with a second‐order kinetic rate constant of 2.8 × 10 −4 g·min −1 ·mg −1 for aqueous iodine adsorption. This work leverages the unique hydrogen bonding properties to construct stable and robust iodine adsorption materials, paving a new way forward for the future development of iodine adsorbents.