| 학회 |
한국화학공학회 |
| 학술대회 |
2020년 가을 (10/14 ~ 10/16, e-컨퍼런스) |
| 권호 |
26권 1호, p.425 |
| 발표분야 |
에너지 환경 |
| 제목 |
Ultrafast and Selective Isopropyl Alcohol Nanofiltration with Turbostratic Nanoporous Carbon Sheets Membranes |
| 초록 |
Development of organic solvent nanofiltration (OSN) membranes for viscous green solvents such as isopropyl alcohol (IPA) is one of the big challenges in pharmaceutical and fine chemical industry due to its sustainability. However, all existing membranes (including polymer membrane) for IPA nanofiltration have needed an alternative due to low solvent permeance from strong interaction between membrane materials and solvent molecules. Here, high performance OSN membrane is developed by stacking turbostratic nanoporous carbon sheets (TNCS) fabricated by rapid thermal treatment. TNCS membrane exhibits ultrafast IPA permeance (1800 L m-2 h-1 bar-1) with sharp separation of solvent molecules from larger molecules than 600 Da, which is molecular weight cut off (MWCO). The performance exceeds the upper bound of IPA permeance of commercially available OSN membranes by two orders, maintaining high rejection rates for sub-nanoscale sized molecules. |
| 저자 |
장재동1, 정희태1, 남윤태1, 김대우2, 김용재1, 김대옥3
|
| 소속 |
1카이스트, 2연세대, 3Imperial College London |
| 키워드 |
환경 |
| E-Mail |
|
| 원문파일 |
초록 보기 |
