ZIF-78 membrane derived from amorphous precursors with permselectivity for cyclohexanone/cyclohexanol mixture

Lili Fan, Ming Xue, Zixi Kang, Guoying Wei, Lin Huang, Jiushu Shang, Daliang Zhang, Shilun Qiu

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Cyclohexanone and cyclohexanol are products of selective oxidation of cyclohexane. They are important industrial intermediates and difficult to be separated due to their close boiling points. In this work, well-intergrown ZIF-78 membrane was successfully synthesized on the porous silica substrate by secondary growth method and applied for separation of cyclohexanone/cyclohexanol mixture for the first time. Meanwhile, a facile method for seeding procedure was developed by utilizing the amorphous ZIF-78 precursors to provide better-distributed nucleation sites. Both XRD and SEM results confirmed the good quality of the membrane. The pervaporation separation of cyclohexanone/ cyclohexanol mixture were carried out at room temperature with permselectivity of 1:2 and total flux around 8.7 × 10-2 kg m-2 h-1. © 2013 Elsevier Inc. All rights reserved.
Original languageEnglish (US)
Pages (from-to)29-34
Number of pages6
JournalMicroporous and Mesoporous Materials
Volume192
DOIs
StatePublished - Jul 2014
Externally publishedYes

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