| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO)) |
| 권호 |
23권 1호 |
| 발표분야 |
환경·에너지_포스터 |
| 제목 |
High performance mixed-matrix membranes comprising H-ZIF for CO2/CH4 separation |
| 초록 |
We report mixed-matrix membranes containing nanocage-like hollow H-ZIF polyhedral nanocrystals in poly(vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) copolymer for CO2/CH4 separation. The H-ZIF polyhedral nanocrystals were synthesized via heteroepitaxial growth of a ZIF-8 shell and excavation of ZIF-67 sacrificial templates. Because of the amphiphilic properties of the PVC-g-POEM, the microphase-separated structure has been well induced resulting dispersion of H-ZIF in the membrane. The hollow structure of H-ZIF polyhedral nanocrystals induced decrease of gas-diffusion resistance which leads to high gas separation performance. Furthermore, CO2-philic amine groups in the imidazole linkers of the H-ZIF increased CO2 separation performance. MMM exhibited CO2 permeability of with 210.6 barrer which is about 5 times higher than that of neat PVC-g-POEM and CO2/CH4 selectivity of 14.3 close to upper bound reported by Robeson in 2008. |
| 저자 |
민효준, 김종학
|
| 소속 |
연세대 |
| 키워드 |
Gas separation; Mixed matrix membrane; Graft copolymer
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| E-Mail |
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