am7b07373_si_001.pdf (989.52 kB)
Building Additional Passageways in Polyamide Membranes with Hydrostable Metal Organic Frameworks To Recycle and Remove Organic Solutes from Various Solvents
journal contribution
posted on 2017-10-12, 00:00 authored by Xiquan Cheng, Xu Jiang, Yanqiu Zhang, Cher Hon Lau, Zongli Xie, Derrick Ng, Stefan J. D. Smith, Matthew R. Hill, Lu ShaoMembrane
separation is a promising technology for extracting temperature-sensitive
organic molecules from solvents. However, a lack of membrane materials
that are permeable toward organic solvents yet highly selective curtails
large-scale membrane applications. To overcome the trade-off between
flux and selectivity, additional molecular transportation pathways
are constructed in ultrathin polyamide membranes using highly hydrostable
metal organic frameworks with diverse functional surface architectures.
Additional passageways enhance water permeance by 84% (15.4 L m–2 h–1 bar–1) with
nearly 100% rose bengal rejection and 97.6% azithromycin rejection,
while showing excellent separation performance in ethyl acetate, ketones,
and alcohols. These unique composite membranes remain stable in both
aqueous and organic solvent environments. This immediately finds application
in the purification of aqueous mixtures containing organic soluble
compounds, such as antibiotics, during pharmaceutical manufacturing.
History
Usage metrics
Categories
Keywords
membrane applicationsOrganic Solutessurface architecturesbengal rejectionseparation performancetransportation pathwaysAdditional passagewaysethyl acetateHydrostable Metal Organic FrameworkssolventPolyamide Membranesultrathin polyamide membraneswater permeanceVarious Solvents Membrane separationhydrostable metalmembrane materials
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC