碘化物
碘
化学
卤素
试剂
无机化学
碘酸盐
碘化氢
有机化学
烷基
作者
Mingshi Zhang,Jayanta Samanta,Benjamin A. Atterberry,Richard J. Staples,Aaron J. Rossini,Chenfeng Ke
标识
DOI:10.1002/anie.202214189
摘要
Abstract Iodine is widely used as an antimicrobial reagent for water disinfection in the wilderness and outer space, but residual iodine and iodide need to be removed for health reasons. Currently, it is challenging to remove low concentrations of iodine and iodide in water (≈5 ppm). Furthermore, the remediation of iodine and iodide across a broad temperature range (up to 90 °C) has not previously been investigated. In this work, we report a nitrate dimer‐directed synthesis of a single‐crystalline ionic hydrogen‐bonded crosslinked organic framework (H C OF‐7). H C OF‐7 removes iodine and iodide species in water efficiently through halogen bonding and anion exchange, reducing the total iodine concentration to 0.22 ppm at room temperature. Packed H C OF‐7 columns were employed for iodine/iodide breakthrough experiments between 23 and 90 °C, and large breakthrough volumes were recorded (≥18.3 L g −1 ). The high iodine/iodide removal benchmarks recorded under practical conditions make H C OF‐7 a promising adsorbent for water treatment.
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