2024 : 6 : 22
Fahime Parvizian

Fahime Parvizian

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0001-6112-0047
Education: PhD.
ScopusId: 26425215000
Faculty: Engineering
Address: Arak University


Advances in high carbon dioxide separation performance of poly (ethylene oxide)-based membranes
Membrane gas separation; Molecular design; Poly (ethylene oxide); CO2 /CH4 separation
Journal Journal of Energy Chemistry
Researchers Samaneh Bandehali ، Abdolreza Moghadassi ، Fahime Parvizian ، Seyed mohsen Hosseini ، Takeshi Matsuura ، Ezatollah JOUDAKI


Poly (ethylene-oxide) (PEO)-based membranes have attracted much attention recently for CO 2 separation because CO 2 is highly soluble into PEO and shows high selectivity over other gases such as CH 4 and N 2 . Unfortunately, those membranes are not strong enough mechanically and highly crystalline, which hin- ders their broader applications for separation membranes. In this review discussions are made, as much in detail as possible, on the strategies to improve gas separation performance of PEO-based membranes. Some of techniques such as synthesis of graft copolymers that contain PEO, cross-linking of polymers and blending with long chains polymers contributed significantly to improvement of membrane. Incor- poration of ionic liquids/nanoparticles has also been found effective. However, surface modification of nanoparticles has been done chemically or physically to enhance their compatibility with polymer ma- trix. As a result of all such effort s, an excellent performance, i.e., CO 2 permeability up to 200 Barrer, CO 2 /N 2 selectivity up to 200 and CO 2 /CH 4 selectivity up to 70, could be achieved. Another method is to introduce functional groups into PEO-based polymers which boosted CO 2 permeability up to 200 Barrer with CO 2 /CH 4 selectivity between 40 and 50. The CO 2 permeability of PEO-based membranes increases, without much change in selectivity, when the length of ethylene oxide is increased.