Graphene foam membranes with tunable pore size for next-generation reverse osmosis water desalination

Duc Tam Ho; Thi Phuong Nga Nguyen; Arun Jangir; Udo Schwingenschlögl

doi:10.1039/d2nh00475e

Graphene foam membranes with tunable pore size for next-generation reverse osmosis water desalination

Duc Tam Ho, Thi Phuong Nga Nguyen, Arun Jangir, Udo Schwingenschlögl^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The development of carbon-based reverse osmosis membranes for water desalination is hindered by challenges in achieving a high pore density and controlling the pore size. We use molecular dynamics simulations to demonstrate that graphene foam membranes with a high pore density provide the possibility to tune the pore size by applying mechanical strain. As the pore size is found to be effectively reduced by a structural transformation under strain, graphene foam membranes are able to combine perfect salt rejection with unprecedented water permeability.

Original language	English (US)
Pages (from-to)	1082-1089
Number of pages	8
Journal	Nanoscale Horizons
Volume	8
Issue number	8
DOIs	https://doi.org/10.1039/d2nh00475e
State	Published - May 31 2023

Bibliographical note

Funding Information:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). This work used computational resources of the Supercomputing Laboratory at KAUST.

Publisher Copyright:
© 2023 The Royal Society of Chemistry.

ASJC Scopus subject areas

General Materials Science

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title = "Graphene foam membranes with tunable pore size for next-generation reverse osmosis water desalination",

abstract = "The development of carbon-based reverse osmosis membranes for water desalination is hindered by challenges in achieving a high pore density and controlling the pore size. We use molecular dynamics simulations to demonstrate that graphene foam membranes with a high pore density provide the possibility to tune the pore size by applying mechanical strain. As the pore size is found to be effectively reduced by a structural transformation under strain, graphene foam membranes are able to combine perfect salt rejection with unprecedented water permeability.",

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note = "Funding Information: The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). This work used computational resources of the Supercomputing Laboratory at KAUST. Publisher Copyright: {\textcopyright} 2023 The Royal Society of Chemistry.",

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AU - Schwingenschlögl, Udo

N1 - Funding Information: The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). This work used computational resources of the Supercomputing Laboratory at KAUST. Publisher Copyright: © 2023 The Royal Society of Chemistry.

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AB - The development of carbon-based reverse osmosis membranes for water desalination is hindered by challenges in achieving a high pore density and controlling the pore size. We use molecular dynamics simulations to demonstrate that graphene foam membranes with a high pore density provide the possibility to tune the pore size by applying mechanical strain. As the pore size is found to be effectively reduced by a structural transformation under strain, graphene foam membranes are able to combine perfect salt rejection with unprecedented water permeability.

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Graphene foam membranes with tunable pore size for next-generation reverse osmosis water desalination

Abstract

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