An ionic vinylene-linked three-dimensional covalent organic framework for selective and efficient trapping of ReO(4)(−) or (99)TcO(4)(−)

The synthesis of ionic olefin linked three-dimensional covalent organic frameworks (3D COFs) is greatly challenging given the hardness of the formation of stable carbon-carbon double bonds (–C = C–). Herein, we report a general strategy for designing porous positively charged sp(2) carbon-linked 3D...

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Detalles Bibliográficos
Autores principales: Zhang, Cheng-Rong, Cui, Wei-Rong, Yi, Shun-Mo, Niu, Cheng-Peng, Liang, Ru-Ping, Qi, Jia-Xin, Chen, Xiao-Juan, Jiang, Wei, Liu, Xin, Luo, Qiu-Xia, Qiu, Jian-Ding
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9734744/
https://www.ncbi.nlm.nih.gov/pubmed/36494388
http://dx.doi.org/10.1038/s41467-022-35435-7
Descripción
Sumario:The synthesis of ionic olefin linked three-dimensional covalent organic frameworks (3D COFs) is greatly challenging given the hardness of the formation of stable carbon-carbon double bonds (–C = C–). Herein, we report a general strategy for designing porous positively charged sp(2) carbon-linked 3D COFs through the Aldol condensation promoted by quaternization. The obtained 3D COFs, namely TFPM-PZI and TAPM-PZI, showed impressive chemical stability. Furthermore, the positively charged frameworks with regular porosity endow 3D ionic COFs with selective capture radioactive ReO(4)(−)/TcO(4)(−) and great removal efficiency in simulated Hanford waste. This research not only broadens the category of 3D COFs but also promotes the application of COFs as efficient functional materials.

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