期刊
NATURE COMMUNICATIONS
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms11315
关键词
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资金
- National Natural Science Foundation of China [21236008, 21476206]
- Fujian Provincial Department of Ocean [2014-06]
- Zhejiang Provincial Bureau of Science and Technology [2014C33032]
- Taishan Scholarship Blue Industry Program from Shandong Provincial Government [2014008]
- Huzhou Gemking Biotechnology Co. Ltd.
- Fujian Provincial Government
- Chinese Government
The development of simple, versatile strategies for the synthesis of metal-organic framework (MOF)-derived membranes are of increasing scientific interest, but challenges exist in understanding suitable fabrication mechanisms. Here we report a route for the complete transformation of a series of MOF membranes and particles, based on multivalent cation substitution. Through our approach, the effective pore size can be reduced through the immobilization of metal salt residues in the cavities, and appropriate MOF crystal facets can be exposed, to achieve competitive molecular sieving capabilities. The method can also be used more generally for the synthesis of a variety of MOF membranes and particles. Importantly, we design and synthesize promising MOF membranes candidates that are hard to achieve through conventional methods. For example, our CuBTC/MIL-100 membrane exhibits 89, 171, 241 and 336 times higher H-2 permeance than that of CO2, O-2, N-2 and CH4, respectively.
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