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Melamine‐Based Microporous Organic Framework Thin Films on an Alumina Membrane for High‐Flux Organic Solvent Nanofiltration
Author(s) -
Amirilargani Mohammad,
Yokota Giova.,
Vermeij Gijs H.,
Merlet Renaud B.,
Delen Guusje,
Mandemaker Laurens D. B.,
Weckhuysen Bert M.,
Winnubst Louis,
Nijmeijer Arian,
Smet Louis C. P. M.,
Sudhölter Ernst J. R.
Publication year - 2020
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201902341
Subject(s) - nanofiltration , microporous material , membrane , chemical engineering , materials science , solvent , polymer , melamine , polyamide , polymer chemistry , organic chemistry , chemistry , composite material , biochemistry , engineering
Microporous polymer frameworks have attracted considerable attention to make novel separation layers owing to their highly porous structure, high permeability, and excellent molecular separation. This study concerns the fabrication and properties of thin melamine‐based microporous polymer networks with a layer thickness of around 400 nm, supported on an α‐alumina support and their potential use in organic solvent nanofiltration. The modified membranes show excellent solvent purification performances, such as n ‐heptane permeability as high as 9.2 L m −2 h −1 bar −1 in combination with a very high rejection of approximately 99 % for organic dyes with molecular weight of ≥457 Da. These values are higher than for the majority of the state‐of‐the‐art membranes. The membranes further exhibit outstanding long‐term operation stability. This work significantly expands the possibilities of using ceramic membranes in organic solvent nanofiltration.