Chiral metal-organic frameworks (MOFs) used to discriminate chiral enantiomers are of great practical significance. In this study, a novel homochiral [Ni2(L-asp)2(bipy)] membrane was fabricated on a porous ceramic support and used for enantioselective separation of racemic diols. High-energy ball milling was applied to decrease the size of MOF crystals to achieve homogeneous seed suspensions. A high-quality homochiral membrane was obtained after optimizing the preparation process. Under the concentration-driven permeation process, racemic 2-methyl-2,4-pentanediol (MPD) was readily separated by the as-prepared membrane. At 30°C, an enantiomeric excess value of 35.5 ± 2.5% was obtained at a feed concentration of 1.0 mmol L−1. The chiral separation of racemic MPD via the membrane followed a preferential sorption mechanism. © 2013 American Institute of Chemical Engineers AIChE J, 59: 4364–4372, 2013
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.