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Preparation and optimization of mordenite nanocrystal-layered membrane for dehydration by pervaporation

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Title: Preparation and optimization of mordenite nanocrystal-layered membrane for dehydration by pervaporation
Authors: Zhang, Yaqi Browse this author
Nakasaka, Yuta Browse this author →KAKEN DB
Tago, Teruoki Browse this author →KAKEN DB
Hirata, Aya Browse this author
Sato, Yuki Browse this author
Masuda, Takao Browse this author →KAKEN DB
Keywords: Mordenite nanocrystal-layered membrane
Pervaporation
Water/organic solutions
Pre-aging
Issue Date: 1-May-2015
Publisher: Elsevier
Journal Title: Microporous and mesoporous materials
Volume: 207
Start Page: 39
End Page: 45
Publisher DOI: 10.1016/j.micromeso.2014.12.032
Abstract: Mordenite nanocrystal-layered membranes consisting of a mordenite nanocrystal layer and protection layer were successfully prepared. The obtained mordenite membranes were applied to the separation of water from water/organic solutions (organic solvents: ethanol, acetone, iso-propanol, or acetic add) using a pervaporation method at temperatures from 60 to 100 degrees C. Water permeance through the mordenite membrane in each water/organic solution system was almost identical regardless of organic solvent types in the feed solution. In contrast, the permeance of the organic molecules depended on their polarities. The pre-aging temperature of the mother liquid and the heating rate for formation of the protection layer affected the secondary growth process that formed the protection layer, leading to different morphologies and sizes of the crystals in the protection layer. Water flux increased with decreasing crystal size in the protection layer because the number of non-zeolitic pores among the mordenite crystal increased as the crystal size decreased.
Type: article (author version)
URI: http://hdl.handle.net/2115/58564
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 中坂 佑太

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