Details
| Original language | English |
|---|---|
| Pages (from-to) | 1741-1751 |
| Number of pages | 11 |
| Journal | Separation Science and Technology |
| Volume | 53 |
| Issue number | 11 |
| Early online date | 12 Feb 2018 |
| Publication status | Published - 2018 |
Abstract
A seeding-free synthesis method is developed for preparation of oriented zeolite LTA membranes by using 1,4-phenylene diisocyanate (PDI) as a molecular linker. Before hydrothermal synthesis, –NCO groups are introduced with the functionalization of Al2O3 supports by PDI. A thin, well intergrown zeolite LTA membrane with a thickness of about 4.0 µm can be formed on the PDI-modified Al2O3 supports. The zeolite LTA membrane displays high pervaporation performances for dehydration of alcohols. At 90°C, the separation factor of the zeolite LTA membrane is 4480 for dehydration of 95 wt% ethanol/water mixtures, with a high water flux of 3.4 kg·m−2·h−1.
Keywords
- covalent modification, dehydration of alcohols, Molecular sieve membrane, pervaporation, zeolite lta membrane
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Chemical Engineering(all)
- General Chemical Engineering
- Chemical Engineering(all)
- Process Chemistry and Technology
- Chemical Engineering(all)
- Filtration and Separation
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In: Separation Science and Technology, Vol. 53, No. 11, 2018, p. 1741-1751.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Seeding-free synthesis of oriented zeolite LTA membrane on PDI-modified support for dehydration of alcohols
AU - Xu, Kai
AU - Jin, Haiming
AU - Wang, Linfang
AU - Liu, Yi
AU - Zhou, Chen
AU - Caro, Jürgen
AU - Huang, Aisheng
N1 - Publisher Copyright:© 2018 Taylor & Francis.
PY - 2018
Y1 - 2018
N2 - A seeding-free synthesis method is developed for preparation of oriented zeolite LTA membranes by using 1,4-phenylene diisocyanate (PDI) as a molecular linker. Before hydrothermal synthesis, –NCO groups are introduced with the functionalization of Al2O3 supports by PDI. A thin, well intergrown zeolite LTA membrane with a thickness of about 4.0 µm can be formed on the PDI-modified Al2O3 supports. The zeolite LTA membrane displays high pervaporation performances for dehydration of alcohols. At 90°C, the separation factor of the zeolite LTA membrane is 4480 for dehydration of 95 wt% ethanol/water mixtures, with a high water flux of 3.4 kg·m−2·h−1.
AB - A seeding-free synthesis method is developed for preparation of oriented zeolite LTA membranes by using 1,4-phenylene diisocyanate (PDI) as a molecular linker. Before hydrothermal synthesis, –NCO groups are introduced with the functionalization of Al2O3 supports by PDI. A thin, well intergrown zeolite LTA membrane with a thickness of about 4.0 µm can be formed on the PDI-modified Al2O3 supports. The zeolite LTA membrane displays high pervaporation performances for dehydration of alcohols. At 90°C, the separation factor of the zeolite LTA membrane is 4480 for dehydration of 95 wt% ethanol/water mixtures, with a high water flux of 3.4 kg·m−2·h−1.
KW - covalent modification
KW - dehydration of alcohols
KW - Molecular sieve membrane
KW - pervaporation
KW - zeolite lta membrane
UR - http://www.scopus.com/inward/record.url?scp=85041909525&partnerID=8YFLogxK
U2 - 10.1080/01496395.2018.1434203
DO - 10.1080/01496395.2018.1434203
M3 - Article
AN - SCOPUS:85041909525
VL - 53
SP - 1741
EP - 1751
JO - Separation Science and Technology
JF - Separation Science and Technology
SN - 0149-6395
IS - 11
ER -