| 학회 |
한국화학공학회 |
| 학술대회 |
2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터) |
| 권호 |
27권 2호, p.1248 |
| 발표분야 |
[주제별 심포지엄] 탄소 중립 규현을 위한 분리기술 심포지엄(분리기술부문위원회) |
| 제목 |
Pore Tuning of ZIF type MOF membrane for CO2 separation enabled by graphene nanoribbon |
| 초록 |
Tuning the pore structure and gas transport properties of the metal-organic framework has been mainly achieved by modifying framework building blocks. Herein, we suggest a direct growth of pore-tuned ZIF-8 layer on graphene oxide nanoribbons (GONR)-treated polymer substrate. Oxygen-containing groups and carbon dangling bonding of GONR not only enable spontaneous growth of ZIF-8 on the GONR surface but also enhance the rigidity by strongly anchoring the ZIF-8 layer via metal-carbon chemisorption. Gas permeation and molecular simulation results confirm that the effective aperture size of ZIF-8 is adjusted to 3.6 Å, and as a result, the membrane can be used for CO2 separation in many applications. In addition, when the GONR is thermally treated to increase the portion of the sp2 edge, the pore structure of ZIF-8 can be more rigid showing the intrinsic molecular weight cut-off at 3.4Å. |
| 저자 |
김대우 |
| 소속 |
연세대 |
| 키워드 |
Membrane; Metal organic framework; Pore tuning; Graphene nanoribbon; Gas separation
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| E-Mail |
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| 원문파일 |
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