Abstract
Membrane separation technology holds a key role across various research areas and disciplines ranging from water desalination and purification systems to fuel cell technologies.
Highlights
Membrane separation technology holds a key role across various research areas and disciplines ranging from water desalination and purification systems to fuel cell technologies
It was reported that functionalizing graphene nano pores with oxygen atoms makes them exhibit a very good selectivity for K+ over Na+ (1000:1), as Na+ ions faces an energy barrier of about 21 kJ mol−1 higher than that for K+ to pass through the nanopore
Donnan-Type Interactions: Donnan-Type Interactions have a large impact on the selectivity of gas transport through nanopores graphene (NPG) membranes. These electrostatic interactions during gas transport caused by either the added charges or functional groups attached to the pores of the graphene sheet, enhance the selectivity and prompt further investigation of the mechanisms of the interactions in molecular gas sieving. [143,144] Functional groups can increase or decrease the diffusion energy barriers, which is the energy that needs to be surmounted so that the molecule permeates through due to the electrostatic or coulombic interactions,[143,144,145] which is why the atoms that are chosen for pore- passivation must be application specific and intelligently selected
Summary
Membrane separation technology holds a key role across various research areas and disciplines ranging from water desalination and purification systems to fuel cell technologies. It was reported that functionalizing graphene nano pores with oxygen atoms makes them exhibit a very good selectivity for K+ over Na+ (1000:1), as Na+ ions faces an energy barrier of about 21 kJ mol−1 higher than that for K+ to pass through the nanopore.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
