The Me(almIM)2 structural ZIFs: Synthesis, characterization and application

Vietnam Journal of Catalysis and Adsorption Pub Date : 2024-03-09 DOI:10.62239/jca.2023.060

Ta Ngoc Don, Le Van Duong, Nguyen Thi Hong Phuong, Nguyen Thi Minh Thu, Nguyen Thi Thu Huyen, Ta Ngoc Thien Huy, Nguyen Van Thanh, Danh Mu, Ngu Trong Nghia, Pham Thi Mai Huong, Nguyen Thi Linh, Ha Thi Lan Anh, Bui Thi Thanh Ha, Tran Anh Vy, Trinh Thi Hai

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Abstract

The Me(almIM)2 structural ZIFs are formed from the metal ions Me2+ and the linker 4-methyl-5-imidazolecarboxaldehyde (HalmIM), with the Me–almIM–Me bond angle similar to the Si–O–Si angle in zeolites (145o). Depending on the type of bond formed, Me(almIM)2 material has RHO or SOD structure with good thermal and chemical stability. With pore diameter of about 3.0-3.7 Å connected to large cavities with sizes from 9.1-17.9 Å and a structural frameworks containing two groups –CH3 and –CHO with hydrophilic properties, when the –CHO groups is modified by amine groups through imine condensation reaction, we can create hydrophobic materials for diverse applications in adsorption, separation, sensing, biomedical and catalysis. This review report collects results from more than 100 research papers related to Me(almIM)2 from 2010 to present and provides some recommendations on their synthesis, characterization and application in the future.

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Me(almIM)2 结构 ZIF：合成、表征和应用

Me(almIM)2结构ZIF由金属离子Me2+和连接体4-甲基-5-咪唑甲醛（HalmIM）形成，Me-almIM-Me键角与沸石中的Si-O-Si角（145o）相似。根据形成的键的类型，Me(almIM)2 材料具有 RHO 或 SOD 结构，具有良好的热稳定性和化学稳定性。孔隙直径约为 3.0-3.7 Å，连接着大小为 9.1-17.9 Å 的大空腔，结构框架中含有两个具有亲水性的基团 -CH3 和 -CHO，当 -CHO 基团通过亚胺缩合反应被胺基修饰后，我们就可以创造出疏水材料，在吸附、分离、传感、生物医学和催化等领域有多种应用。

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Vietnam Journal of Catalysis and Adsorption

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