当前位置：
X-MOL 学术
›
ChemistrySelect
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Adsorption of Iodine on Adamantane-Based Covalent Organic Frameworks
ChemistrySelect ( IF 1.9 ) Pub Date : 2021-10-07 , DOI: 10.1002/slct.202102656 Zhineng Wu 1 , Wei Wei 1 , Jianguo Ma 1 , Jianqiang Luo 1 , Yueming Zhou 1 , Zhiyi Zhou 1 , Shujuan Liu 1
ChemistrySelect ( IF 1.9 ) Pub Date : 2021-10-07 , DOI: 10.1002/slct.202102656 Zhineng Wu 1 , Wei Wei 1 , Jianguo Ma 1 , Jianqiang Luo 1 , Yueming Zhou 1 , Zhiyi Zhou 1 , Shujuan Liu 1
Affiliation
|
Radioactive iodine is severely hazardous to human health and the environment because of its high specific activity and environmental mobility. In this article, three covalent organic frameworks (COFs) (named as DbTd-COF, DpTd-COF, and DaTd-COF) were prepared for the removal of iodine in both gas and solution states. The COFs were obtained by the solvothermal reaction of 1,3,5,7-tetrakis (4-formylphenyl) adamantane (TFPA) with benzidine, 2,5-diaminopyridine, and p-phenylenediamine, respectively. The obtained samples were characterized by SEM, FT-IR, TGA, and nitrogen adsorption-desorption analysis. The rigid linker of phenzyl chains helps to improve the stability of the polymer. DbTd-COF and DaTd-COF show excellent thermomechanical stability with a decomposition temperature of over 400 °C. DbTd-COF and DaTd-COF show good uptake capacities of 4.93 and 4.48 g g−1 for iodine vapor capture, respectively. DpTd-COF shows a slightly smaller iodine uptake of 3.43 g g−1. XPS results indicated that iodine was captured in the form of its polyiodide anions. A better recyclability can be obtained after four cycle runs. In addition, DaTd-COF shows good removal of iodine (concentration: 500 mg L−1) from cyclohexane solution with an adsorption capacity of 666.79 mg g−1.
中文翻译：
碘在基于金刚烷的共价有机框架上的吸附
放射性碘由于其高比活度和环境迁移率而对人类健康和环境造成严重危害。在本文中，制备了三种共价有机骨架 (COF)（命名为 DbTd-COF、DpTd-COF 和 DaTd-COF）用于去除气体和溶液状态的碘。COF 是通过 1,3,5,7-四（4-甲酰基苯基）金刚烷 (TFPA) 分别与联苯胺、2,5-二氨基吡啶和对苯二胺的溶剂热反应获得的。所得样品通过SEM、FT-IR、TGA和氮吸附-解吸分析进行表征。苯甲基链的刚性接头有助于提高聚合物的稳定性。DbTd-COF 和 DaTd-COF 显示出优异的热机械稳定性，分解温度超过 400 °C。DbTd-COF 和 DaTd-COF 显示出 4 的良好吸收能力。-1分别用于碘蒸气捕获。DpTd-COF 显示出稍小的碘摄取量，为 3.43 g g -1。XPS 结果表明碘以其多碘阴离子的形式被捕获。四个循环运行后可以获得更好的可回收性。此外，DaTd-COF从环己烷溶液中良好地去除碘（浓度：500 mg L -1），吸附容量为 666.79 mg g -1。
更新日期：2021-10-07
中文翻译：
碘在基于金刚烷的共价有机框架上的吸附
放射性碘由于其高比活度和环境迁移率而对人类健康和环境造成严重危害。在本文中，制备了三种共价有机骨架 (COF)（命名为 DbTd-COF、DpTd-COF 和 DaTd-COF）用于去除气体和溶液状态的碘。COF 是通过 1,3,5,7-四（4-甲酰基苯基）金刚烷 (TFPA) 分别与联苯胺、2,5-二氨基吡啶和对苯二胺的溶剂热反应获得的。所得样品通过SEM、FT-IR、TGA和氮吸附-解吸分析进行表征。苯甲基链的刚性接头有助于提高聚合物的稳定性。DbTd-COF 和 DaTd-COF 显示出优异的热机械稳定性，分解温度超过 400 °C。DbTd-COF 和 DaTd-COF 显示出 4 的良好吸收能力。-1分别用于碘蒸气捕获。DpTd-COF 显示出稍小的碘摄取量，为 3.43 g g -1。XPS 结果表明碘以其多碘阴离子的形式被捕获。四个循环运行后可以获得更好的可回收性。此外，DaTd-COF从环己烷溶液中良好地去除碘（浓度：500 mg L -1），吸附容量为 666.79 mg g -1。
京公网安备 11010802027423号