베마이트를 이용한 UF 세라믹 분리막의 제조Fabrication of Boehmite-based UF Ceramic Membrane
- Other Titles
- Fabrication of Boehmite-based UF Ceramic Membrane
- Authors
- Wi, In-Hee; Shin, Dong-Wook; Han, Kyu-Sung; Kim, Jin-Ho; Cho, Woo-Seok; Hwang, Kwang-Taek
- Issue Date
- Jul-2014
- Publisher
- Korean Ceramic Society
- Keywords
- Boehmite; Ceramic membrane; Sol-gel; Ultrafiltration
- Citation
- Journal of the Korean Ceramic Society, v.51, no.4, pp.337 - 343
- Indexed
- SCOPUS
KCI
- Journal Title
- Journal of the Korean Ceramic Society
- Volume
- 51
- Number
- 4
- Start Page
- 337
- End Page
- 343
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/159556
- DOI
- 10.4191/kcers.2014.51.4.337
- ISSN
- 1229-7801
- Abstract
- A single layer ultrafiltration(UF) ceramic membrane was prepared using boehmite sol. Boehmite was synthesized using a typical sol-gel process with optimization of the viscosity, pH, molar ratio of aluminum isopropoxide(AIP) and HNO3. Boehmite sol was coated on a microfiltration(MF) support using the dip-coating method. MF support was dipped into the boehmite sol with a withdrawal speed of 5 mm/s and was maintained for 10 s in the boehmite sol, resulting in a uniform UF membrane layer of 10 μm thickness. The porosity of the obtained membrane was measured and found to be 41.2%; the pore size was found to range from 80~100 nm, corresponding to the pore size of the UF membrane. The flux of the obtained membrane was initially 540 L/m2 h and approximately 85% of the initial flux was recovered using a periodic back-flushing process.
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