Seeding-free synthesis of oriented zeolite LTA membrane on PDI-modified support for dehydration of alcohols

Kai Xu; Haiming Jin; Linfang Wang; Yi Liu; Chen Zhou; Jürgen Caro; Aisheng Huang

doi:10.1080/01496395.2018.1434203

Seeding-free synthesis of oriented zeolite LTA membrane on PDI-modified support for dehydration of alcohols

Kai Xu
, Haiming Jin
, Linfang Wang
, Yi Liu
, Chen Zhou
, Jürgen Caro
, Aisheng Huang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

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.

Original language	English
Pages (from-to)	1741-1751
Number of pages	11
Journal	Separation Science and Technology
Volume	53
Issue number	11
DOIs	https://doi.org/10.1080/01496395.2018.1434203
State	Published - 24 Jul 2018
Externally published	Yes

Keywords

Molecular sieve membrane
covalent modification
dehydration of alcohols
pervaporation
zeolite lta membrane

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10.1080/01496395.2018.1434203

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title = "Seeding-free synthesis of oriented zeolite LTA membrane on PDI-modified support for dehydration of alcohols",

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 = "Molecular sieve membrane, covalent modification, dehydration of alcohols, pervaporation, zeolite lta membrane",

author = "Kai Xu and Haiming Jin and Linfang Wang and Yi Liu and Chen Zhou and J{\"u}rgen Caro and Aisheng Huang",

note = "Publisher Copyright: {\textcopyright} 2018 Taylor \& Francis.",

year = "2018",

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day = "24",

doi = "10.1080/01496395.2018.1434203",

language = "英语",

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}

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

PY - 2018/7/24

Y1 - 2018/7/24

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 - Molecular sieve membrane

KW - covalent modification

KW - dehydration of alcohols

KW - pervaporation

KW - zeolite lta membrane

UR - https://www.scopus.com/pages/publications/85041909525

U2 - 10.1080/01496395.2018.1434203

DO - 10.1080/01496395.2018.1434203

M3 - 文章

AN - SCOPUS:85041909525

SN - 0149-6395

VL - 53

SP - 1741

EP - 1751

JO - Separation Science and Technology

JF - Separation Science and Technology

IS - 11

ER -

Seeding-free synthesis of oriented zeolite LTA membrane on PDI-modified support for dehydration of alcohols

Abstract

Keywords

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