Preparation of highly water-selective mordenite membranes via post-synthetic treatment with oxalic acid

The effect of post-synthetic treatment with oxalic acid was investigated on the pervaporation performance of mordenite membranes for the separation of a water/ethanol mixture. It was demonstrated that the water/ethanol separation factors were enhanced from 6–44 to higher than 10,000 after as-synthes...

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Bibliographic Details
Published in:Materials letters 2007-09, Vol.61 (23), p.4576-4578
Main Authors: Li, Gang, Su, Xiao-hui, Lin, Rui-sen
Format: Article
Language:English
Subjects:
Mordenite membranes
Oxalic acid
Pervaporation
Post-treatment
Zeolite membranes
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Summary:The effect of post-synthetic treatment with oxalic acid was investigated on the pervaporation performance of mordenite membranes for the separation of a water/ethanol mixture. It was demonstrated that the water/ethanol separation factors were enhanced from 6–44 to higher than 10,000 after as-synthesized mordenite membranes were hydrothermally treated in an oxalic acid solution under appropriate conditions. The change in the pervaporation performance of mordenite membranes upon post-treatment with oxalic acid was discussed.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2007.02.054