Formation of Ultrathin, Continuous Metal-Organic Framework Membranes on Flexible Polymer Substrates

Hou, Jingwei and Sutrisna, Putu Doddy and Zhang, Yatao and Chen, Vicki (2016) Formation of Ultrathin, Continuous Metal-Organic Framework Membranes on Flexible Polymer Substrates. Angewandte Chemie International Edition, 55 (12). pp. 3947-3951. ISSN 14337851

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Abstract

Metal-organic framework (MOF) materials have an enormous potential in separation applications, but to realize their potential as semipermeable membranes they need to be assembled into thin continuous macroscopic films for fabrication into devices. By using a facile immersion technique, we prepared ultrathin, continuous zeolitic imidazolate framework (ZIF-8) membranes on titania-functionalized porous polymeric supports. The coherent ZIF-8 layer was surprisingly flexible and adhered well to the support, and the composite membrane could sustain bending and elongation. The membranes exhibited molecular sieving behavior, close to the theoretical permeability of ZIF-8, with hydrogen permeance up to 201×10-7 mol m-2 s-1 Pa-1 and an ideal H2/CO2 selectivity of 7:1. This approach offers significant opportunities to exploit the unique properties of MOFs in the fabrication of separation and sensing devices.

Item Type:	Article
Subjects:	T Technology > TP Chemical technology
Divisions:	Faculty of Engineering > Department of Chemical Engineering
Depositing User:	Putu Doddy S, 61107 - 200042
Date Deposited:	05 Mar 2020 07:19
Last Modified:	21 Mar 2022 03:56
URI:	http://repository.ubaya.ac.id/id/eprint/37551

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