Novel Organic‐Dehydration Membranes Prepared from Zirconium Metal‐Organic Frameworks

Membranes with outstanding performance that are applicable in harsh environments are needed to broaden the current range of organic dehydration applications using pervaporation. Here, well‐intergrown UiO‐66 metal‐organic framework membranes fabricated on prestructured yttria‐stabilized zirconia holl...

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Bibliographic Details
Published in:Advanced functional materials 2017-01, Vol.27 (3), p.1604311-n/a
Main Authors: Liu, Xinlei, Wang, Chenghong, Wang, Bo, Li, Kang
Format: Article
Language:English
Subjects:
Adsorption
Benzene
Biochemistry
Biomass
Boiling
Butanol
Dehydration
Flux
Fuels
Furfural
hollow fibers
Materials science
Membranes
Metal-organic frameworks
Pervaporation
Separation
Silicon dioxide
Sulfuric acid
Tetrahydrofuran
UiO‐66
Yttria stabilized zirconia
Yttrium oxide
Zeolites
Zirconium dioxide
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Summary:Membranes with outstanding performance that are applicable in harsh environments are needed to broaden the current range of organic dehydration applications using pervaporation. Here, well‐intergrown UiO‐66 metal‐organic framework membranes fabricated on prestructured yttria‐stabilized zirconia hollow fibers are reported via controlled solvothermal synthesis. On the basis of the adsorption–diffusion mechanism, the membranes provide a very high flux of up to ca. 6.0 kg m−2 h−1 and excellent separation factor (>45 000) for separating water from i‐butanol (next‐generation biofuel), furfural (promising biochemical), and tetrahydrofuran (typical organic). This performance, in terms of separation factor, is one to two orders of magnitude higher than that of commercially available polymeric and silica membranes with equivalent flux. It is comparable to the performance of commercial zeolite NaA membranes. Additionally, the membrane remains robust during a pervaporation stability test (≈300 h), including exposure to harsh environments (e.g., boiling benzene, boiling water, and sulfuric acid) where some commercial membranes (e.g., zeolite NaA membranes) cannot survive. Novel membranes for pervaporation: Well‐intergrown metal‐organic framework UiO‐66 membranes are developed on prestructured yttria‐stabilized zirconia hollow fibers. The membranes provide excellent performance for purifying typical biofuels, biochemicals, and organics under harsh environments.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201604311