期刊
MATERIALS CHARACTERIZATION
卷 62, 期 4, 页码 409-418出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2011.01.012
关键词
Ceramic membrane supports; Al2O3; Chemical properties; Acidic corrosion resistance; Alkaline corrosion resistance
类别
资金
- Irish Research Council for Science, Engineering and Technology (IRCSET) through an IRCSET-EMPOWER
- Ministry of Science and Technology of China [2003CB615700]
Tubular porous alumina ceramic membrane supports were fabricated by an extrusion-drying-sintering process and then characterized in detail in terms of corrosion resistance in both H2SO4 and NaOH aqueous solutions. Variations in the properties of the alumina supports such as mass loss percent, mechanical strength, open porosity and pore size distribution were studied before and after corrosion under different conditions. In addition, the microstructures were analyzed using scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction before and after corrosion. The fabricated porous alumina supports offer possibilities for some potential applications as micro-filtration or ultra-filtration membrane supports, as well as in the pre-treatment of strongly acidic industrial waste-liquids. (C) 2011 Elsevier Inc. All rights reserved.
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