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Reference type: Journal
Authors: Zheng HY, Yoshikawa M
Article Title: Molecularly imprinted cellulose membranes for pervaporation separation of xylene isomers.
Publication date: 2015
Journal: Journal of Membrane Science
Volume: 478
Page numbers: 148-154.
DOI: 10.1016/j.memsci.2014.12.048
Alternative URL: http://www.sciencedirect.com/science/article/pii/S037673881400951X

Abstract: Molecularly imprinted polymeric membranes (MIPMs) were prepared from cellulose and 1,2- dihydroxybenzene as a print molecule with imprinting ratio of 0.5 and 1.0. Those membranes were applied to the separation of xylene isomers by pervaporation. The molecularly imprinted membranes selectively incorporated o-xylene from o-/m- and o-/p- mixtures at a low o-xylene concentration region, the adsorption selectivity toward o-xylene was determined to be 7.15 and 4.24, respectively, implying that 1,2-dihydroxybenzene worked well as the print molecule for o-xylene recognition; the pervaporation was carried out at 40 C and at the downstream pressure of 0.5 kPa and showed permselectivity toward o-xylene at low o-xylene concentrations while toward m- and p-xylene at high o-xylene concentrations. The molecularly imprinted membranes gave higher flux than the control non-imprinted membrane. The results obtained in the present study revealed that molecular imprinting is one of promising methods to prepare separation membranes for pervaporation
Template and target information: 1,2-dihydroxybenzene, catechol, dummy template, xylene isomers, o-xylene
Author keywords: cellulose, molecular imprinting, permselectivity, Pervaporation, Xylene isomers


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