Browse > Article
http://dx.doi.org/10.4191/kcers.2014.51.4.337

Fabrication of Boehmite-based UF Ceramic Membrane  

Wi, In-Hee (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Shin, Dong-Wook (Division of Materials Science and Engineering, Hanyang University)
Han, Kyu-Sung (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Kim, Jin-Ho (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Cho, Woo-Seok (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Hwang, Kwang-Taek (Icheon Branch, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Journal of the Korean Ceramic Society / v.51, no.4, 2014 , pp. 337-343 More about this Journal
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 $HNO_3$. 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 $10{\mu}m$ 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 $L/m^2h$ and approximately 85% of the initial flux was recovered using a periodic back-flushing process.
Keywords
Ceramic membrane; Boehmite; Ultrafiltration; Sol-gel;
Citations & Related Records
연도 인용수 순위
  • Reference
1 V. T. Zaspalis, W. Van Praag, K. Keizer, J. R. H. Ross, and A. J. Burggraaf, "Synthesis and Characterization of Primary Alumina, Titania and Binary Membranes," J. Mater. Sci., 27 [4] 1023-35 (1992).   DOI
2 A. J. Burggraaf, K. Keizer, and B. A. V. Hassel, "Ceramic Nanostructure Materials, Membrane and Composite Layers," Solid State Ionics, 32-33 [2] 771-82 (1989).
3 D. S. Bae, D. S. Cheong, K. S. Han, and S. H. Choi, "Fabrication and Microstructure of $Al_2O_3$-$TiO_2$ Composite Membranes with Ultrafine Pores," Ceram. Int., 24 [1] 25-30 (1998).   DOI   ScienceOn
4 R. S. A. de Lange, J. H. A. Hekkink, K. Keizer, and A. J. Burggraaf, "Formation and Characterization of Supported Microporous Ceramic Membranes Prepared by Sol-gel Modification Techniques," J. Membr. Sci., 99 [1] 57-75 (1995).   DOI   ScienceOn
5 L. Pach, R. Roy, and S. Komarneni, "Nucleation of Alpha Alumina in Boehmite Gel," J. Mater. Res., 5 [2] 278-85 (1990).   DOI
6 B. C. Lippens and J. H. deb Boer, "Study of Phase Transformation During in Calcination of Aluminum Hydroxides by Selected Area Electron Diffraction," Acta. Crystallogr., 17 [10] 1312-21 (1964).   DOI
7 M. Trocha and W. J. Koros, "A Diffusion-controlled Procedure to Close Pores in Ceramic Membranes," J. Membr. Sci., 95 [3] 259-76 (1994).   DOI   ScienceOn
8 R. S. A. de Lange, K. Keizer, and A. J. Burggraaf, "Analysis and Theory of Gas Transport in Membranes Sol-Gel Derived Ceramic Membranes," J. Membr. Sci., 104 [1] 81-100 (1995).   DOI   ScienceOn
9 J. S. Reed, Introduction to the Principles of Ceramic Processing; pp. 487, Wiley Press, New York, 1988.
10 K. C. Song and I. J. Chung, "Rheological Properties of Aluminum Hydroxide Sols During Sol-Gel Transition," J. Non-Cryst. Solids., 107 [2] 193-98 (1989).   DOI   ScienceOn
11 B. E. Yoldas, "Effect of Variations in Polymerized Oxides on Sintering and Crystalline Transformations," J. Am. Ceram. Soc., 65 [8] 387-93 (1982).   DOI
12 M. Y. Yoon, "Characterization and Gas Permeation Properties of a Hydrogen Permeable SiC Membrane Deposited on Alumina-graded Structure Prepared from Size-controlled Boehmite Sols," pp. 32-6, in Master's Thesis, Inha University, Incheon, 2009.
13 K. Wefers and C. Misra, "Oxides and Hydroxides of Aluminum," Tech. Pap.-AlCOA Res. Lab., 19 1-92 (1987).
14 P. F. Becher, J. H. Sommers, B. A. Bender, and B. A. Mac-Farlane, "Ceramics Sintered Directly from Sol-gels," Mater. Sci. Res., 11 79-86 (1978).
15 R. Goei and T. T. Lim, "Asymmetric $TiO_2$ Hybrid Photocatalytic Ceramic Membrane with Porosity Gradient : Effect of Structure Directing Agent on the Resulting Membranes Architecture and Performances," Ceram. Int., 40 [5] 6747-57 (2014).   DOI