Enhancing the CO2 plasticization resistance of PS mixed-matrix membrane by blunt zeolitic imidazolate framework

doi:10.1016/j.jcou.2018.03.009

中山醫學大學機構典藏 CSMUIR > 附設醫院 > 期刊論文 > Item 310902500/19051

Please use this identifier to cite or link to this item: https://ir.csmu.edu.tw:8080/ir/handle/310902500/19051

Title:	Enhancing the CO2 plasticization resistance of PS mixed-matrix membrane by blunt zeolitic imidazolate framework
Authors:	Guo-LiangZhuang;Hui-HsinTseng;PetrUchytil;Ming-YenWey
Contributors:	中山醫學大學
Keywords:	Aging;Aqueous synthetic process;Blunt ZIF-8;CO2 capture;Plasticization
Date:	2018-05
Issue Date:	2018-03-27T09:04:45Z (UTC)
Publisher:	Elsevier Ltd
ISSN:	22129820
Abstract:	A novel design to synthesize a defect-free mixed-matrix membrane (MMM) exhibiting superior gas separation performance via fully dispersed blunt zeolitic imidazolate framework (ZIF-8) in polymer matrix has been proposed for the first time. The sphericity and interconnected six-membered-ring (6-MR) pore porosity of ZIF-8 was controlled through an aqueous synthetic process by using a non-ionic surfactant (Pluronics, P123) and deionized water as solvent. The use of surfactant in ZIF-8 synthesis resulted in blunt nanocrystals with increased sphericity and 6-MR pore volume as confirmed by scanning electron microscopy (SEM) and nitrogen adsorption-desorption isotherm measurements. Subsequent pure gas permeation tests showed that blunt ZIF-8 increased CO2/N2 separation performance through "ideal morphology" in MMMs as a result of the excellent dispersion of ZIF-8 and good ZIF-8-polymer interfacial adhesion within the polymer matrix. A significant increase in CO2/N2 separation results were obtained with the MMM containing 10wt% loading of blunt ZIF-8 (P51), CO2 permeability of 21.5 Barrer (172.6%), and mixed-gas CO2/N2 selectivity of 43.9 (205.6%). The MMMs further displayed good aging-resistance properties for over 40 days, with considerable potential for long-term operation. © 2018 Elsevier Ltd. All rights reserved.
URI:	https://www.doi.org/10.1016/j.jcou.2018.03.009 https://ir.csmu.edu.tw:8080/ir/handle/310902500/19051
Relation:	Journal of CO2 Utilization Volume 25, May 2018, Pages 79-88
Appears in Collections:	[附設醫院] 期刊論文

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