|Title:||Towards acid-tolerated ethanol dehydration: Chitosan-based mixed matrix membranes containing cyano-bridged coordination polymer nanoparticles||Authors:||Wu K.C.-W.
|Keywords:||Chitosan-based mixed matrix membranes;Coordination polymers;Ethanol dehydration;Nanoparticles;Prussian blue||Issue Date:||2016||Journal Volume:||16||Journal Issue:||4||Start page/Pages:||4141-4146||Source:||Journal of Nanoscience and Nanotechnology||Abstract:||
Prussian blue (PB) nanoparticles, one of many cyano-bridged coordination polymers, are successfully incorporated into chitosan (CS) polymer to prepare PB/CS mixed matrix membranes (MMMs). The PB nanoparticles are uniformly distributed in the MMMs without the collapse of the original PB structure. As-prepared PB/CS MMMs are used for ethanol dehydration at 25 ¢XC in the pervaporation process. The effect of loading PB in CS matrix on pervaporation performance is carefully investigated. The PB/CS membrane with 30 wt% PB loading shows the best performance with a permeate flux of 614 g ¡P m -2 ¡P h -1 and a separation factor of 1472. The pervaporation using our PB/CS membranes exhibits outstanding performance in comparison with the previously reported CS-based membranes and MMMs. Furthermore, the addition of PB allows PB/CS MMMs to be tolerant of acidic environment. The present work demonstrates good pervaporation performance of PB/CS MMMs for the separation of an ethanol/water (90:10 in wt%) solution. Our new system provides an opportunity for dehydration of bioethanol in the future. Copyright ? 2016 American Scientific Publishers All rights reserved.
|Appears in Collections:||化學工程學系|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.