Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 43, Pages 12588-12591Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201504572
Keywords
chitin; Cu3BTC2; marine sponge; metal-organic frameworks; NH3 adsorption
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [Br 1278/17-1, 20-2]
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Metal-organic frameworks (MOFs) are promising materials for gas-separation and air-filtration applications. However, for these applications, MOF crystallites need to be incorporated in robust and manageable support materials. We used chitin-based networks from a marine sponge as a nontoxic, biodegradable, and low-weight support material for MOF deposition. The structural properties of the material favor predominant nucleation of the MOF crystallites at the inside of the hollow fibers. This composite has a hierarchical pore system with surface areas up to 800 m(2)g(-1) and pore volumes of 3.6 cm(3)g(-1), allowing good transport kinetics and a very high loading of the active material. Ammonia breakthrough experiments highlight the accessibility of the MOF crystallites and the adsorption potential of the composite indicating their high potential for filtration applications for toxic industrial gases.
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