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  4. Towards acid-tolerated ethanol dehydration: Chitosan-based mixed matrix membranes containing cyano-bridged coordination polymer nanoparticles
 
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Towards acid-tolerated ethanol dehydration: Chitosan-based mixed matrix membranes containing cyano-bridged coordination polymer nanoparticles

Journal
Journal of Nanoscience and Nanotechnology
Journal Volume
16
Journal Issue
4
Pages
4141-4146
Date Issued
2016
Author(s)
Wu K.C.-W.  
Kang C.-H.
Lin Y.-F.
Tung K.-L.  
Deng Y.-H.
Ahamad T.
Alshehri S.M.
Suzuki N.
DOI
10.1166/jnn.2016.12614
URI
https://scholars.lib.ntu.edu.tw/handle/123456789/408816
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969921105&doi=10.1166%2fjnn.2016.12614&partnerID=40&md5=ca62b82873ff65861e3ab494cfe1dd93
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.
Subjects
Chitosan-based mixed matrix membranes
Coordination polymers
Ethanol dehydration
Nanoparticles
Prussian blue
Type
journal article

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