期刊
JOURNAL OF MEMBRANE SCIENCE
卷 518, 期 -, 页码 178-191出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2016.07.005
关键词
Ionic liquid; Supported liquid membrane; Thin film coating; Landau-Levich equation; CO2 separation
资金
- Helmholtz Association of German Research Centres through the Helmholtz Portfolio MEM-BRAIN
The application of commercial polyacrylonitrile (PAN) membranes as matrix material for ionic liquids (ILs) for gas separation tasks is reported and morphological characteristics for supported liquid membrane stability are discussed. The compatibility of membrane components was investigated and two thin film coating techniques, dip coating and spin coating, were compared. The dip coating technique has proven to fulfill the requirement of membrane stability, as well as pin-hole free coating and thin coating thickness. The thickness of the ionic liquid layer in the membrane could be assessed by means of a modified Landau-Levich approach. Overall liquid membranes supported by PAN with a narrow pore size distribution achieved remarkably good results especially in combination with 1-ethyl-3-methylimidazolium tetracyanoborate (EMIM TCB) ionic liquid and are showing the way to commercially scalable supported liquid membrane application. (C) 2016 Elsevier B.V. All rights reserved.
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