膜科学与技术

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Study on the Preparation of Defect-free Alumina Microfiltration Membrane

Authors： WEN Juanjuan, FAN Yiqun*

Units： State Key Laboratory of Materials - Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China

KeyWords： ceramic membrane; defect-free; cross flow filtration; repairing

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2013,33(5):19-24

Abstract：

The technology of cross flow filtration technology was a novel method used in the field of pore defect repairing, and this study was focused on the alumina membrane with an average pore size of 0.2 μm. The repairing time was the major factor taken into consideration. The results indicated that the membrane thickness increased with the raise of repairing time under the conditions of a diluted suspension, 1 m•s-1 flow speed and 0.1 MPa transmembrane pressure. When the repairing time reached 12 min, 90 % of the tubular membranes owned a relatively low pore size of the defect around 1 μm. Additionally, the zirconia ultrafiltration membrane made on the repaired alumina membrane showed a good rejection property concerning MWCO, which could reach 22 kDa compared with great higher MWCO made on the unrepaired alumina membrane. It could figure out that the repairing favored the preparation of subsequent zirconia ultrafiltration membrane.

Funds：

国家“863”计划课题(2012AA03A606)、江苏高校优势学科建设工程资助项目

AuthorIntro：

闻娟娟(1987-),女,江苏南通市人,硕士,研究方向为膜分离. *通讯联系人

Reference：

[1]       徐南平, 邢卫红, 赵宜江. 无机膜分离技术与应用[M]. 北京: 化学工业出版社, 2003.
[2]       Kim Y S, Yang S M. Preparation of continuous mesoporous silica thin film on a porous tube[J]. Adv Mater, 2002, 14(15): 1078-1081.
[3]       张栋强, 陈日志, 范益群等. Pd/Ti-Al合金复合膜表面缺陷的影响因素[J]. 南京工业大学学报, 2012, 34(1): 1-4.
[4]       Gualtieria M L , Andersson C, Jareman F, et al. Crack formation in α-alumina supported MFI zeolite membranes studied by in situ high temperature synchrotron powder diffraction[J]. J Membr Sci, 2007, 290: 95–104.
[5]       范苏. 改进的溶胶-凝胶法制备TiO2超滤膜[D]. 南京: 南京工业大学, 2010.
[6]       Qiu M H, Fan Y Q, Xu N P. Preparation of supported zirconia ultra?ltration membranes with the aid of polymeric additives[J]. J Membr Sci, 2010, 348: 252–259.
[7]       Fang J, Qin G T, Wei W, et al. Preparation and characterization of tubular supported ceramic micro?ltration membranes from ?y ash[J]. Sep Purif Technol, 2011, 80: 585–591.
[8]       黄爱生, 李砚硕, 刘杰等. 抽真空涂晶法合成A型分子筛膜及渗透汽化性能研究[J]. 膜科学与技术, 2005, 25(2): 5-10.
[9]       Uhlhorn R J R, Keizer K, Burggraaf A J. Gas transport and separation with ceramic membranes Part I Multilayer diffusion and capillary condensation[J]. J Membr Sci, 1992, 66: 259-269.
[10]    Okubo T, Haruta K, Kusakabe K, et al. Preparation of a sol-gel derived thin membrane on a porous ceramic hollow fiber by the filtration technique[J]. J Membr Sci, 1991, 59: 73-80.
[11]    Chu L, Anderson M A. Microporous silica membranes deposited on porous supports by filtration[J]. J Membr Sci, 1996, 110: 141-149.
[12]    Zhu J, Fan Y Q, Xu N P. Modified dip-coating method for preparation of pinhole-free ceramic membranes. J Membr Sci [J], 2011, 367: 14-20.
[13]    徐南平. 面向应用过程的陶瓷膜材料设计、制备与应用[M]. 北京: 科学出版社, 2005.
[14]  ASTM E1343-90. Standard test method for molecular weight cutoff evaluation of flat sheet ultrafiltration membrane[S]. United States: 2001.

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