| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 가을 (10/24 ~ 10/26, 대구 EXCO) |
| 권호 |
24권 2호, p.1801 |
| 발표분야 |
재료(Materials) |
| 제목 |
Zeolitic Imidazolate Framework ZIF-8 Films with Controllable Microstructures Prepared via ZnO to ZIF-8 Conversion and Their Usage as Seed Layers for Propylene-selective ZIF-8 Membranes |
| 초록 |
Supported ZIF-8 films with varying microstructures were prepared by ZnO to ZIF-8 conversion reaction in a 2-methylimidazole solution. The grain size and continuity of the film were controlled by manipulating conversion parameters such as solvents and their combinations and conversion temperature. The ZIF-8 films with varying microstructures were used as seed layers to synthesize propylene-selective ZIF-8 membranes. The propylene/propane separation performances were greatly affected by the microstructures of the seed layers. Non-continuous seed layers covered with compactly packed ZIF-8 nanocrystals tended to yield membranes with improved grain boundary structure compared to those grown from continuous seed layers with a larger grain size. The membranes were mechanically stronger than those grown from conventional seed layers, which were obtained by dip-coating ZIF-8 nanocrystals on substrates, likely due to the presence of mechanical interlocks between the membranes and porous substrate network. |
| 저자 |
이정희1, 김동휘1, 유성종2, 권혁택1, 김진수1
|
| 소속 |
1경희대, 2한국과학기술(연) |
| 키워드 |
화공소재 전반 |
| E-Mail |
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| VOD |
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| 원문파일 |
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