10.5061/DRYAD.CG385
Chen, Zhuwen
Peking University
Zeng, Jiaying
The Hong Kong University of Science and Technology
Lv, Dong
The Hong Kong University of Science and Technology
Gao, Jinqiang
Peking University
Zhang, Jian
Peking University
Bai, Shan
Peking University
Li, Ruili
Peking University
Hong, Mei
Peking University
Wu, Jingshen
The Hong Kong University of Science and Technology
Data from: Halloysite nanotube-based electrospun ceramic nanofibre mat: a
novel support for zeolite membranes
Dryad
dataset
2016
zeolite
ceramic membrane
halloysite
nanofiber
electrospin
2016-11-21T13:40:57Z
2016-11-21T13:40:57Z
en
https://doi.org/10.1098/rsos.160552
330877 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Some key parameters of supports such as porosity, pore shape and size are
of great importance for fabrication and performance of zeolite membranes.
In this study, we fabricated millimetre-thick, self-standing electrospun
ceramic nanofibre mats and employed them as a novel support for zeolite
membranes. The nanofibre mats were prepared by electrospinning a
halloysite nanotubes/polyvinyl pyrrolidone composite followed by a
programmed sintering process. The interwoven nanofibre mats possess up to
80% porosity, narrow pore size distribution, low pore tortuosity and
highly interconnected pore structure. Compared with the commercial α-Al2O3
supports prepared by powder compaction and sintering, the halloysite
nanotube-based mats (HNMs) show higher flux, better adsorption of zeolite
seeds, adhesion of zeolite membranes and lower Al leaching. Four types of
zeolite membranes supported on HNMs have been successfully synthesized
with either in situ crystallization or a secondary growth method,
demonstrating good universality of HNMs for supporting zeolite membranes.
Pore size distribution of HNM and FNJ supportsPorosities of HNM support
obtained under different pressing pressures before sinteringPorosities of
HNM obtained under different pressing pressures before sintering.xlsxXRD
patterns of HNM support obtained at different sintering temperaturesXRD
patterns of HNMs obtained at different sintering temperatures.xlsxXRD
patterns of HNM support, zeolite seeds and zeolite membranes