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Abstract:
The ability to fabricate high-quality MOF-based membranes is critical and highly desired due to their outstanding performance in molecule separations and sensors. In this work, a water stable MOF, ZIF-8 is chosen as the typical example to validate a new self-modified counter diffusion assisted secondary growth method for the fabrication of inner skin tubular MOF membranes. The preparation route involves two main steps: counter diffusion for modifying the rough surface of industrial ceramic substrate (plugging pores in the ceramic tube) with homogenous ZIF-8 nanocrystals, and the secondary solvothermal growth for fabricating continuous ZIF-8 membranes on the inner surface of the tubular substrate. The ZIF-8 membranes prepared by this method are characterized in detail. The pre-modification process and the use of a low-reactivity growth solution containing zinc acetate favor the growth of dense ZIF-8 membrane in the solvothermal process.
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RSC ADVANCES
ISSN: 2046-2069
Year: 2014
Issue: 62
Volume: 4
Page: 33007-33012
3 . 9 0 0
JCR@2022
ESI Discipline: CHEMISTRY;
ESI HC Threshold:258
JCR Journal Grade:1
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 19
SCOPUS Cited Count: 20
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 5
Affiliated Colleges: