Journal
RSC ADVANCES
Volume 5, Issue 36, Pages 28394-28400Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra15771k
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Funding
- National Key Basic Research Program of China (973) [2013CB733503]
- Natural Science Foundation of China [21136001, 21276008]
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Metal-organic frameworks (MOFs) have exhibited promising applications in gas and liquid separation. As a subclass of MOFs, zeolitic imidazolate frameworks (ZIFs) are attracting more and more interest because of their unique thermal and chemical stability. One of the representative ZIFs, ZIF-7, has super-hydrophobic pores, making it a perfect filler in polymer membranes for recovering acetone from fermentation broths. In this study, mixed matrix membranes (MMMs) based on ZIF-7 and polydimethylsiloxane (PDMS) were prepared, which display improved acetone-water total flux and separation factors simultaneously compared with a pure PDMS membrane. The separation factor can reach up to 39.1 with a high flux of 1236.8 g m(-2) h(-1) at 333 K, which is the highest value among those reported up to now to the best of our knowledge.
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