A Two-dimensional Covalent Organic Framework for Iodine Adsorption |
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Authors: | ZHANG Jianhui LIU Jianchuan LIU Yaozu WANG Yujie FANG Qianrong QIU Shilun |
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Institution: | 1. School of Information Engineering, Zhongshan Polytechnic, Zhongshan 528404, P. R. China;2. State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, Jilin University, Changchun 130012, P. R. China |
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Abstract: | Radioactive iodine is a notorious pollutant in gas radioactive nuclear waste due to its radiation hazard, volatility, chemical toxicity, and high mobility. Therefore, developing a material with high efficiency-specific iodine capture is significant. Covalent organic framework(COF) has attracted significant attention as a new crystalline porous organic material. Due to its large specific surface and high chemical stability, it is an excellent alternative to adsorbents. Herein, we report a chemically stable two-dimensional COF(termed JUC-609) with specific adsorption of iodine. Adsorption experiments show that JUC-609 has an excellent iodine adsorption capacity as high as 5.9 g/g under 353 K and normal pressure condition, and iodine adsorption after multiple cycles is still maintained. Our study thus promotes the potential application of COFs in the field of environment-related applications. |
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Keywords: | Porous material Covalent organic framework Iodine adsorption Mesoporous structure |
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