Synthesis of mesoporous alumina-titania membranes by the sol-gel method

被引:7
|
作者
Bottino, A. [1 ]
Comite, A. [1 ]
Capannelli, G. [1 ]
机构
[1] Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy
关键词
ceramic membrane; alumina; titania; mixed oxides; dip coating; sol-gel; SELECTIVE CATALYTIC-REDUCTION; TO-RUTILE TRANSFORMATION; POROUS CERAMIC MEMBRANES; COMPOSITE MEMBRANES; ULTRAFINE PORES; MIXED OXIDES; THIN-FILMS; SUPPORTS; STABILITY; NANOCOMPOSITES;
D O I
10.1002/apj.374
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Ceramic tubular membranes with alumina-titania top layers were prepared using the dipping procedure and a mixed sol composed of both boehmite and titania. The influence of the Ti/Al ratio, the amount of an organic additive (namely hydroxypropylcellulose), the dip-time, the number of depositions and drying-calcination conditions on the membrane morphology and transport properties were investigated. The conditions for the formation of a defect-free and homogeneous top layer were individuated. (C) 2009 Curtin University of Technology and John Wiley & Sons, Ltd.
引用
收藏
页码:242 / 248
页数:7
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