Morphological Map of ZIF-8 Crystals with Five Distinctive Shapes: Feature of Filler in Mixed-Matrix Membranes on C3H6/C3H8 Separation
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Chemical Science Program
Nanostructured Functional Materials (NFM) laboratory
Physical Science and Engineering (PSE) Division
Online Publication Date2018-05-07
Print Publication Date2018-05-22
Permanent link to this recordhttp://hdl.handle.net/10754/630419
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AbstractMorphology-tailoring of metal-organic frameworks (MOFs) is essential for their specific application in molecular-separation, catalysis, and drug-delivery. However, precision syntheses of uniform MOFs crystals with anisotropic shape are still challenging. Herein, a morphological map for monodisperse ZIF-8 crystals with five distinctive shapes was constructed in terms of the synthetic conditions. It was revealed that the formation mechanism for ZIF-8 crystals with various shapes is strongly dependent on the concentration of cetyltrimethylammonium bromide (CTAB) added, not limited to the traditional capping mechanism for MOFs and metal nanocrystals. The generality of this strategy was also verified through the successful morphology-controllable synthesis of ZIF-67 crystals. The effect of ZIF-8 morphology on separation performance of resulting cross-linked poly(ethylene oxide) (XLPEO)-based mixed-matrix membranes for CH/CH mixtures was also evaluated.
CitationYang F, Mu H, Wang C, Xiang L, Yao KX, et al. (2018) Morphological Map of ZIF-8 Crystals with Five Distinctive Shapes: Feature of Filler in Mixed-Matrix Membranes on C3H6/C3H8 Separation. Chemistry of Materials 30: 3467–3473. Available: http://dx.doi.org/10.1021/acs.chemmater.8b01073.
Sponsorshis work was supported by the National Natural Science Foundation of China (21406106, 21622607, 21776124), Jiangsu Provincial NSFC (BK20171459), Foundation of Jiangsu Educational Committee of China (17KJA530004, 15KJA150005), and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD). Financial support from “the Youth Thousand Talents Plan” of China and “the Shuang Chuang Plan” of Jiangsu province for Y.Y. is also gratefully acknowledged. Y.L. appreciates the K. C. Wong Magna Fund in Ningbo University.
PublisherAmerican Chemical Society (ACS)
JournalChemistry of Materials