Corrosion resistance characterization of porous alumina membrane supports

Yingchao Dong*, Bin Lin, Jian Er Zhou, Xiaozhen Zhang, Yihan Ling, Xingqin Liu, Guangyao Meng, Stuart Hampshire

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)409-418
Number of pages10
JournalMaterials Characterization
Volume62
Issue number4
DOIs
StatePublished - Apr 2011
Externally publishedYes

Bibliographical note

Funding Information:
The authors would like to thank the Irish Research Council for Science, Engineering and Technology (IRCSET) through an IRCSET-EMPOWER post-doctoral fellowship. This work was also financially supported by the Ministry of Science and Technology of China (contract no. 2003CB615700 ). We also thank Mr. Jiakui Yang (Technical Engineer, Hefei Great Wall New Century Membrane Science & Technology Ltd.), Ms. Gaye Hanrahan (MSSI & MST, UL), Dr. Declan Curran (MSSI, UL) and Mr. Clive Considine (MST, UL) for the assistance during pore size distribution, strength and SEM tests.

Keywords

  • Acidic corrosion resistance
  • AlO
  • Alkaline corrosion resistance
  • Ceramic membrane supports
  • Chemical properties

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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