Covalent Organic Frameworks(COFs) for Sequestration of99TcO4– |
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Authors: | DI Zhengyi MAO Yining YUAN Heng ZHOU Yan JIN Jun LI Cheng-Peng |
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Institution: | College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, P. R. China |
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Abstract: | Covalent organic frameworks(COFs), as a class of crystalline porous materials with periodic lattices and porous structures, have received extensive attention in the fields of gas storage and separation, energy storage, catalysis and optoelectronics and so on. However, COFs are still in their infancy in the field of nuclear waste treatment, especially for sequestration of long-live problematic radionuclides, such as 99Tc. Battle of decontamination of pertechnetate(TcO4–), a main existence of 99Tc under aerobic environments, is far from finished. In this review, recent progresses of COFs and some relative materials in the sequestration of pertechnetate, and perspective on surmounting the unmet issues are elucidated. |
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Keywords: | Covalent organic framework(COF) Radionuclide sequestration 99TcO4– Adsorption Anion exchange |
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