Porous Aromatic Framework with Multifunctional Sites for Effective Recovery of Various Trace Iodine Species From Water
Year: 2025
Type: article
Abstract: Recovery of environmental iodine is of great significance for both recycling iodine resources and addressing iodine pollution. However, iodine is highly sensitive to environmental factors and exists in various chemical species, which complicates the recovery of trace iodine in aqueous systems. Here a porous aromatic framework (iPAF‐TEPT) is presented with multifunctional adsorption sites for efficient recovery of various iodine species, including molecular iodine (I 2 ), iodide (I − and I 3 − ). The material utilizes a synergistic strategy combining charge‐transfer interactions and Coulomb interactions to effectively adsorb different iodine species. Thanks to its high density of accessible ion exchange sites for I⁻ and I 3 ⁻, and nitrogen‐rich sites for I 2 , iPAF‐TEPT demonstrates an unprecedented adsorption capacity for various iodine forms. Notably, iPAF‐TEPT achieves exceptional removal efficiency for trace iodine pollutants, even at concentrations as low as 100 ppb, making it the first promising single‐framework material for highly efficient treatment of aqueous iodine contamination.
Source: Advanced Science
Authors: Yue Ma, Jinjiao Pan, Huazhen Rong, Yilei Zhang, Lu Liu, Yu Guo, Jiayi Ai, Yihui Yuan, Ning Wang
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $6,730
OpenAlex ID: W4408245311