Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session D39: 2D Materials: Formation Pathways and Mechanisms, Heterostructures and Defects II
3:00 PM–6:00 PM,
Monday, March 6, 2023
Room: Room 231
Sponsoring
Unit:
DMP
Chair: Stephen McDonnell, University of Virginia; Stephan Hofmann, University of Cambridge
Abstract: D39.00010 : Defects Graphene as membranes for water desalination*
5:12 PM–5:24 PM
Presenter:
Ismail Benabdallah
(Mohammed VI Polytechnic University)
Authors:
Ismail Benabdallah
(Mohammed VI Polytechnic University)
Mohammed Amlieh
(Mohammed IV Polytechnic University)
AIT ABDELKADER Sidi abdelmajid
(Mohammed VI Polytechnic University)
Kurt Gaskill
(U.S. Naval Research Laboratory)
Abdelouahad El Fatimy
(Mohammed VI Polytechnic University)
Collaborations:
NRL, IAP
Due to the unique properties of low-dimensional materials, understanding and controlling defects are essential to fully exploit these novel materials' potential for applications such as electronics, photonics, etc. Nevertheless, graphene defects can also be suitable for many other applications. Using plasma sputtering and experimental Raman data, we can easily create and investigate defects on CVD graphene on Si02 or even on epitaxial graphene grown on SiC [1]. We estimate the defect density by fitting experimental Raman spectra to calculated spectra employing the spectral moment's method [2] that incidentally also identifies the defects type (vacancies) and size (~ 1 nm - 2.6 nm). With this in hand, we can model a membrane's molecular filtering efficiency using molecular dynamics simulation. These results show that it is feasible to engineer a graphene membrane for water desalination.
Funding Acknowledgment
This work has been supported by OCP project grant AS70, "Towards phosphorene-based materials and devices,” and by the support of the Chair "Multiphysics and HPC" led by theMohammed VI Polytechnic University, sponsored by OCP.
*Funding AcknowledgmentThis work has been supported by OCP project grant AS70, "Towards phosphorene-based materials and devices,” and by the support of the Chair "Multiphysics and HPC" led by theMohammed VI Polytechnic University, sponsored by OCP.
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