碘化物
碘
环境修复
化学
离子键合
无机化学
离子液体
地下水修复
环境化学
环境科学
有机化学
污染
离子
催化作用
生态学
生物
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
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 (HC OF-7). HC 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 HC 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 HC OF-7 a promising adsorbent for water treatment.
科研通智能强力驱动
Strongly Powered by AbleSci AI