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dc.contributor.authorLiu, Di
dc.contributor.authorPang, Guangsheng
dc.contributor.authorTang, Zhiyong
dc.contributor.authorFeng, Shouhua
dc.description.abstractInterfacial engineering has demonstrated a significant effect on fabricating highly efficient membranes for gas separation. Herein, we introduced a new way to prepare a soft MOF membrane with a modified interface using polyelectrolyte branched polyethyleneimine (PEI) as the joint material. Assembled with layered graphene oxide (GO) and zeolitic imidazolate framework-8 (ZIF-8) nanocrystals, branched PEI not only functions as a soft coat onto the ZIF-8 surface to overcome the rigid nature but also well connects with GO nanosheets via electrostatic attraction, thus preventing the fracture of the membrane. When employed as the gas separation membrane for H2/CH4, the long gas diffusion pathway determined by layered GO and the accurate sieving effect endowed by ZIF-8 enable the remarkable permeance and selectivity. Furthermore, by simply altering the content of GO nanosheets and ZIF-8 nanocrystals in the composite membrane, one can easily adjust the permeance and selectivity toward the separation of H2/CH4 gas mixture.
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.ispartofjournalInorganic Chemistry Frontiers
dc.subject.fieldofresearchInorganic chemistry
dc.titleInterfacial engineering of metal–organic frameworks/graphene oxide composite membrane by polyethyleneimine for efficient H2/CH4 gas separation
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationLiu, D; Pang, G; Tang, Z; Feng, S, Interfacial engineering of metal–organic frameworks/graphene oxide composite membrane by polyethyleneimine for efficient H2/CH4 gas separation, Inorganic Chemistry Frontiers, 2019, 6 (8), pp. 2043-2049
gro.hasfulltextNo Full Text
gro.griffith.authorTang, Zhiyong

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