具有高稳定性的分级多孔金属有机框架的水蚀刻方法。
Water-Etched Approach to Hierarchically Porous Metal-Organic Frameworks with High Stability.
作者信息
Liu Jin-Wang, Lv Si-Ya, Gong Yun-Nan, Lin Xue-Lian, Mei Jian-Hua, Zhong Di-Chang, Lu Tong-Bu
机构信息
Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China.
Key Laboratory of Jiangxi University for Functional Material Chemistry, College of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China.
出版信息
Inorg Chem. 2023 Jul 24;62(29):11611-11617. doi: 10.1021/acs.inorgchem.3c01351. Epub 2023 Jul 10.
The development of hierarchically porous metal-organic frameworks (MOFs) with high stability is desirable to expand their applications but remains challenging. Herein, an anionic sodalite-type microporous MOF (; TTCA = triphenylene-2,6,10-tricarboxylate) was synthesized, which shows outstanding catalytic activities for the cycloaddition of CO into cyclic carbonates. Moreover, the microporous can be transformed into a hierarchical micro- and mesoporous by water treatment with the mesopore sizes of 2 to 12 nm. The hierarchically porous (HP-) not only exhibits a high thermal stability up to 500 °C but also shows a high chemical stability in aqueous solutions with pH values ranging from 2 to 12. In addition, the HP- displays enhanced performance for the removal of organic dyes in comparison with microporous . This work provides a facile way to construct hierarchically porous MOF materials.
开发具有高稳定性的分级多孔金属有机框架（MOF）对于扩大其应用范围是很有必要的，但仍然具有挑战性。在此，合成了一种阴离子方钠石型微孔MOF（；TTCA = 三亚苯基-2,6,10-三羧酸酯），它对CO环加成生成环状碳酸酯表现出出色的催化活性。此外，通过水处理，微孔可以转变为分级微孔和介孔，介孔尺寸为2至12 nm。分级多孔（HP-）不仅在高达500°C时表现出高热稳定性，而且在pH值为2至12的水溶液中也表现出高化学稳定性。此外，与微孔相比，HP-在去除有机染料方面表现出增强的性能。这项工作提供了一种构建分级多孔MOF材料的简便方法。
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