期刊论文

Wang, Xiao-Feng;Lin, Ying-Wu;Rocha, Joao;Zhang, Yue-Biao

英文

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

1433-7851

2019

58

52

18808-18812

10.1002/anie.201909045

This work was financially supported by the National Science Foundation of China (11375082), and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry (to Dr. X.-F.W.). This work was developed in the scope of the project CICECO-Aveiro Institute of Materials (FCT Ref. UID/CTM/50011/2019), financed by national funds through FCT/MEC.

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To efficiently capture the toxic uranyl ions (UO22+), a new hierarchical micro-macroporous metal–organic framework was prepared under template-free conditions, featuring interconnected multi-nanocages bearing carbonyl groups derived from a semi-rigid ligand. The material exhibits an unusually high UO22+ sorption capacity of 562 mg g−1, which occurs in an intriguing two-steps process, on the macropore-based crystal surface and in the inner nanocages. Notably, the latter is attributed to the cooperative interplay of the shrinkage of the host po...