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Materials 2018, 11(7), 1207; https://doi.org/10.3390/ma11071207

Modified Porous SiO2-Supported Cu3(BTC)2 Membrane with High Performance of Gas Separation

1
Key Laboratory for EOR Technology (Ministry of Education), Northeast Petroleum University, XuefuRoad 99, Daqing 163318, China
2
Mechanical Science and Engineering College, Northeast Petroleum University, XuefuRoad 99, Daqing 163318, China
3
State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, Jilin University, QianjinRoad 2699, Changchun 130012, China
*
Author to whom correspondence should be addressed.
Received: 12 June 2018 / Revised: 7 July 2018 / Accepted: 11 July 2018 / Published: 13 July 2018
(This article belongs to the Section Porous Materials)
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Abstract

The structures and applications of metal-organic framework materials (MOFs) have been attracting great interest due to the wide variety of possible applications, for example, chemical sensing, separation, and catalysis. N-[3-(Trimethoxysilyl)propyl]ethylenediamine is grafted on a porous SiO2 disk to obtain a modified porous SiO2 disk. A large-scale, continuous, and compact Cu3(BTC)2 membrane is prepared based on a modified porous SiO2 disk. The chemical structure, surface morphology, thermal stability, mechanical stability, and gas separation performance of the obtained Cu3(BTC)2 membrane is analyzed and characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and a gas separation experiment. The results show that the prepared Cu3(BTC)2 membrane has an intact morphology with its crystal. It is continuous, compact, and intact, and has good thermal stability and mechanical stability. The result of the gas separation experiment shows that the Cu3(BTC)2 membrane has a good selectivity of hydrogen and can be used to recover and purify hydrogen. View Full-Text
Keywords: porous SiO2 disk; N-[3-(Trimethoxysilyl)propyl]ethylenediamine; modified; Cu3(BTC)2 membrane; gas separation porous SiO2 disk; N-[3-(Trimethoxysilyl)propyl]ethylenediamine; modified; Cu3(BTC)2 membrane; gas separation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Lu, C.; Wang, G.; Wang, K.; Guo, D.; Bai, M.; Wang, Y. Modified Porous SiO2-Supported Cu3(BTC)2 Membrane with High Performance of Gas Separation. Materials 2018, 11, 1207.

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