Preparation of Crack-Free Nanocomposite Ceramic Membrane Intermediate Layers on α-alumina Tubular Supports

The objective of this work was to develop a crack-free membrane intermediate layer on tubular ceramic supports via dip-coating. TiO2 submicron powder, Boehmite as a coupling agent, and SiO2 nanopowder as low melting-point sintering aid were used to deposit a thin and crack-free nanocomposite layer onto α-Al2O3 supports. Effects of key parameters such as solid content, number of coated layers, the presence of coupling agent, and a low melting point nanopowder on physicochemical properties like the thickness, microstructure, pore size, pure water flux, and gas permeance of the final modified ceramic supports were investigated. The obtained results showed that after twice coating of support in 3 wt.% bidispersed TiO2-Boehmite suspension, the pore size of the alumina substrate, ∼0.6 micron, was reduced to ∼0.1 by the uniform membrane intermediate layers with low permeation resistance could be prepared. Moreover, by adding SiO2 nanopowder, sintering temperature of intermediate layers decreases considerably (1000 to 700°C).

[1]  J. F. Nascimento,et al.  Processing, structural characterization and performance of alumina supports used in ceramic membranes , 2012 .

[2]  Haihui Wang,et al.  An inorganic membrane as a separator for lithium-ion battery , 2011 .

[3]  G. Pugazhenthi,et al.  Effect of TiO2 addition on the fabrication of ceramic membrane supports: A study on the separation of oil droplets and bovine serum albumin (BSA) from its solution , 2011 .

[4]  Hankwon Lim,et al.  Hydrogen selective thin palladiumcopper composite membranes on alumina supports , 2011 .

[5]  A. Larbot,et al.  Preparation of a new ceramic microfiltration membrane from mineral coal fly ash: Application to the treatment of the textile dying effluents , 2011 .

[6]  Yiqun Fan,et al.  Modified dip-coating method for preparation of pinhole-free ceramic membranes , 2011 .

[7]  A. Ahmad,et al.  Synthesis and characterization of TiO 2 membrane with palladium impregnation for hydrogen separation , 2011 .

[8]  L. Jing,et al.  The controllable microstructure of porous Al2O3 ceramics prepared via a novel freeze casting route , 2010 .

[9]  N. Xu,et al.  Co-sintering synthesis of bi-layer titania ultrafiltration membranes with intermediate layer of sol- , 2010 .

[10]  H. Kalipcilar,et al.  Preparation and performance assessment of binary and ternary PES-SAPO 34-HMA based gas separation membranes , 2010 .

[11]  W. Xing,et al.  Effect of TiO2 doping on the characteristics of macroporous Al2O3/TiO2 membrane supports , 2010 .

[12]  S. Achour,et al.  Preparation and characterization of macroporous ceramic supports for membranes , 2009 .

[13]  Meihong Liu,et al.  Performance enhancement in interfacially synthesized thin-film composite polyamide-urethane reverse osmosis membrane for seawater desalination , 2009 .

[14]  W. Jin,et al.  Fabrication of supported mesoporous TiO2 membranes: matching the assembled and interparticle pores for an improved ultrafiltration performance. , 2009, ACS applied materials & interfaces.

[15]  G. Meng,et al.  Cost-effective tubular cordierite micro-filtration membranes processed by co-sintering , 2009 .

[16]  M. Purkait,et al.  Preparation and characterization of low cost ceramic membranes for micro-filtration applications , 2008 .

[17]  G. Meng,et al.  Preparation and properties of supported 100% titania ceramic membranes , 2008 .

[18]  Henning M. Krieg,et al.  Manufacture and optimization of tubular ceramic membrane supports , 2008 .

[19]  A. Kovalevsky,et al.  Oxygen transport and stability of asymmetric SrFe(Al)O3−δ-SrAl2O4 composite membranes , 2007 .

[20]  Kang Li.  Ceramic Membranes for Separation and Reaction , 2007 .

[21]  N. Agoudjil,et al.  Synthesis of porous titanium dioxide membranes , 2007 .

[22]  A. Larbot,et al.  Synthesis and characterization of a new inorganic ultrafiltration membrane composed entirely of Tunisian natural illite clay , 2007 .

[23]  B. Ernst,et al.  Permselectivity of a nickel/ceramic composite membrane at elevated temperatures: A new prospect in hydrogen separation? , 2007 .

[24]  N. Xu,et al.  Co-sintering synthesis of tubular bilayer α-alumina membrane , 2007 .

[25]  G. Meng,et al.  Microstructure control of ceramic membrane support from corundum-rutile powder mixture , 2006 .

[26]  M. Dietze,et al.  Development of microporous ceramic membranes in the system TiO2/ZrO2 , 2006 .

[27]  A. Larbot,et al.  Elaboration and properties of new ceramic microfiltration membranes from natural and synthesised apatite , 2006 .

[28]  Huimin Zhao,et al.  Zirconia and titania composite membranes for liquid phase separation: preparation and characterization , 2006 .

[29]  A. Larbot,et al.  Porous ceramic supports for membranes prepared from kaolin and doloma mixtures , 2006 .

[30]  J. M. Benito,et al.  Preparation and characterization of tubular ceramic membranes for treatment of oil emulsions , 2005 .

[31]  D. Zhao,et al.  PAPER www.rsc.org/materials | Journal of Materials Chemistry Highly crystallized mesoporous TiO 2 films and their applications in dye sensitized solar cells , 2004 .

[32]  M. Manteghian,et al.  A modified model for alumina membranes formed by gel-casting followed by dip-coating , 2004 .

[33]  A. Larbot,et al.  Preparation and characterization of ultrafiltration membranes for toxic removal from wastewater , 2004 .

[34]  Dong-Wook Lee,et al.  Vapor permeation characteristics of TiO2 composite membranes prepared on porous stainless steel support by sol-gel method , 2004 .

[35]  M. Kokabi,et al.  Chemorheology of alumina–aqueous acrylamide gelcasting systems , 2004 .

[36]  C. Vandecasteele,et al.  Salt retention in nanofiltration with multilayer ceramic TiO2 membranes , 2002 .

[37]  C. Vandecasteele,et al.  Alumina and titania multilayer membranes for nanofiltration: preparation, characterization and chemical stability , 2002 .

[38]  Jong-In Dong,et al.  Preparation of ceramic membrane and application to the crossflow microfiltration of soluble waste oil , 2002 .

[39]  A. P. Higler,et al.  Graded membrane supports produced by centrifugal casting of a slightly polydisperse suspension , 2001 .

[40]  A. Larbot,et al.  Effect of Al2O3 support on electrical properties of TiO2/Al2O3 membrane formed by sol–gel method , 2000 .

[41]  Yunfeng Lu,et al.  Dual-Layer Asymmetric Microporous Silica Membranes , 2000 .

[42]  P. M. Biesheuvel,et al.  Design of ceramic membrane supports: permeability, tensile strength and stress , 1999 .

[43]  Seung‐Man Yang,et al.  Preparation of silica–alumina composite membranes for hydrogen separation by multi-step pore modifications , 1998 .

[44]  Chao Yang,et al.  Preparation and application in oil–water separation of ZrO2/α-Al2O3 MF membrane , 1998 .

[45]  L. Cot,et al.  Fundamentals of inorganic membrane science and technology , 1996 .

[46]  A. Burggraaf,et al.  Pore Narrowing and Formation of Ultrathin Yttria-Stabilized Zirconia Layers in Ceramic Membranes by Chemical Vapor Deposition/Electrochemical Vapor Deposition , 1993 .

[47]  Y. S. Lin.  A theoretical analysis on pore size change of porous ceramic membranes after modification , 1993 .

[48]  A. Burggraaf,et al.  Ceramic membranes for separation and reactions , 1993 .