Rational design and fabrication of a novel acid-resistant UZM-5 zeolite membrane for pervaporation dehydration processes

Novel thin UZM-5 zeolite membranes with pure UFI phase were successfully fabricated using a charge density mismatch-assisted tertiary growth approach. Taking full advantage of the suitable Si/Al ratio and pore size, the obtained novel zeolite membranes revealed an outstanding acid-resistant capacity...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2021-09, Vol.57 (75), p.9574-9577
Main Authors: Yao, Rui, Peng, Yuan, Song, Hongling, Zhu, Chenyu, Wang, Pengyuan, Kun, Lun, Yang, Weishen
Format: Article
Language:English
Subjects:
Acetic acid
Acid resistance
Aluminum
Charge density
Dehydration
Membranes
Pervaporation
Pore size
Silicon
Zeolites
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Summary:Novel thin UZM-5 zeolite membranes with pure UFI phase were successfully fabricated using a charge density mismatch-assisted tertiary growth approach. Taking full advantage of the suitable Si/Al ratio and pore size, the obtained novel zeolite membranes revealed an outstanding acid-resistant capacity and provided great potential for acetic acid pervaporation dehydration applications. A novel polycrystalline UZM-5 zeolite membrane is developed for the first time. The molecular sieve membrane with UFI topology and moderate Si/Al ratio demonstrates remarkable pervaporation performances for ethanol and acetic acid dehydrations.
ISSN:1359-7345
1364-548X
DOI:10.1039/d1cc03987c