A MOF-74 / biphenyl bridge organic silicon hybrid membrane and a preparation method and application thereof
By preparing a MOF-74/biphenyl bridged organosilicon hybrid membrane and optimizing the pore structure, the problem of MOF-74 adsorption sites being buried in the existing technology was solved, and the selectivity and flux of C3H6/C3H8 separation were improved, making it suitable for the field of gas separation.
CN117463173BActive Publication Date: 2026-06-12CHANGZHOU UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGZHOU UNIV
- Filing Date
- 2023-10-24
- Publication Date
- 2026-06-12
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Figure CN117463173B_ABST
Abstract
The application discloses a MOF-74 / diphenyl bridged organosilicon hybrid membrane and a preparation method and application thereof, wherein a hydrocarbon functionalized organosilicon substance BTESBPh with a rigid benzene ring structure is selected as a precursor, and MOF-74 material with a high specific surface area and specific adsorption to C3H6 gas is doped into the precursor, the pore structure of the membrane is optimized, the prepared MOF-74 / diphenyl bridged organosilicon hybrid membrane has a looser network structure, the flux of the membrane and the C3H6 / C3H8 separation selectivity can be improved without changing the original membrane network structure, the composite ratio is optimized, the composite membrane material with the best separation performance is obtained, and the application prospect is wide.
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