| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
학생우수논문발표(박사과정) |
| 제목 |
The Importance of Appropriate Synthesis Conditions for High-performance LTA Zeolite Membranes: The Effects of Water Exposure Time and Conditions of Seed Layer Deposition |
| 초록 |
Linde type A (LTA) zeolites have a pore size of 0.41 × 0.41 nm2 suitable for dehydration of organic solvent. In this work, we synthesized LTA zeolite membranes by controlling the water immersion time to find effects of water exposure on LTA zeolite membranes. When LTA membranes were exposed to water for ~12 h, LTA membranes showed high H2O flux and separation factor. LTA zeolite membranes were damaged as the water immersion time increased. Finally, the separation performances of LTA membranes were sharply decreased after a critical immersion time (~100-200 h). Damage of LTA membranes during water exposure can identified by Fluorescence confocal optical microscopy (FCOM). And we investigated the effect of conditions of seed layer deposition. Appropriate waiting time of seed suspension and number of dip-coating were important for deposition of uniform seed layer. |
| 저자 |
김표섭, 최정규
|
| 소속 |
고려대 |
| 키워드 |
zeolite; membranes; dehydration; synthesis; fluorescence confocal optical microscopy
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| E-Mail |
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