Preparation of Mixed Matrix Membranes Containing ZIF-8 and UiO-66 for Multicomponent Light Gas Separationopen access
- Authors
- Kim, Eun Young; Kim, Hyun Su; Kim, Donghwi; Kim, Jinsoo; Lee, Pyung Soo
- Issue Date
- Jan-2019
- Publisher
- MDPI
- Keywords
- mixed matrix membrane; metal oxide framework; gas separation; ZIF-8; UiO-66
- Citation
- CRYSTALS, v.9, no.1
- Journal Title
- CRYSTALS
- Volume
- 9
- Number
- 1
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/18412
- DOI
- 10.3390/cryst9010015
- ISSN
- 2073-4352
- Abstract
- Mixed matrix membranes (MMMs) containing zeolitic imidazolite framework-8 (ZIF-8) and UiO-66 as microporous fillers were prepared and evaluated their potential for the separation of a gas mixture produced by a methane reforming process. Hydrothermal synthesis was performed to prepare both the ZIF-8 and UiO-66 crystals, with crystal sizes ranging from 50 to 70 nm for ZIF-8 and from 200 to 300 nm for UiO-66. MMMs were prepared with 15% filler loading for both MMM (ZIF-8) and MMM (UiO-66). MMM (UiO-66) exhibited H-2 permeability of 64.4 barrer and H-2/CH4 selectivity of 153.3 for single gas permeation, which are more than twice the values that were exhibited by a neat polymer membrane. MMM (ZIF-8) also showed better separation properties than that of a neat polymer membrane with H-2 permeability of 27.1 barrer and H-2/CH4 selectivity of 123.2. When a gas mixture consisting of 78% Ar/18% H-2/4% CH4 flowed into the membranes at 5 bar, the H-2 purity increased to as high as 93%. However, no improvement in the mixture gas separation performance was achieved by the MMMs as compared to that of a neat polymer membrane.
- Files in This Item
-
- Appears in
Collections - Graduate School > ETC > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/18412)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.