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Updated: Jun 11, 2026

An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
Nitrogen-rich ionic hyper-crosslinked polymers for efficient removal of various species of iodine from vapor and
Xuemei Li1, Di Chen1, Yue Wang1
1School of Chemical and Pharmaceutical Engineering, Jilin University of Chemical Technology, 132022, China.
Abstract:
Radioactive iodine species generated during nuclear fuel reprocessing pose a persistent exists in environment. Therefore, it is essential to capture iodine for the long-term development of nuclear energy and pollution remediation. In this work, nitrogen-rich triazine-based ionic liquid (TBILs) was synthesized as precursor building block. Subsequently, multifunctional nitrogen-rich ionic hyper-crosslinked polymers (TB-iHCP) was constructed through Friedel-Crafts reaction between TBILs and pyrrole, tailored for the efficient adsorption of various species of iodine. The prepared TB-iHCP exhibited good structural stability and excellent iodine adsorption performance, attaining a maximum adsorption capacity (CH3I: 1.02 g g⁻1; iodine vapor: 4.85 g g⁻1; I-: 301.20 mg g⁻1; I3-: 1.67 g g⁻1, and I2 in cyclohexane: 345.16 mg g⁻1). Meanwhile, TB-iHCP also demonstrated excellent stability under a wide range of pH values and strong selectivity even in the coexistence of various interfering ions. The findings demonstrate the feasibility of TB-iHCP for capturing multiple iodine species in complex environments.
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