Issue 31, 2022

Strain tunable nanoporous r-N-GDY membrane for efficient seawater desalination

Abstract

Seawater desalination is believed to be the most promising solution to solve the current crisis of global freshwater deficiency. The applications of nanoporous graphene filters and biological water channels have greatly improved the desalination efficiency. Here, we report the auspicious performance of a tunable nanoporous desalination filter using monolayer r-N-GDY through combination of molecular dynamics simulations and first-principles calculations. In striking contrast to graphene, the r-N-GDY filter can be switched between a high-flux “open” state and a “closed” state by applying tensile strain, yielding a highly tunable nanopore interface. The critical transition between “open” and “closed” states occurs at a moderate strain of 4%. For the “open” state, the water permeability reaches 47 L per cm2 per day per MPa with strong ion rejection which is superior to that of almost all previously reported membrane structures. Given these advantages, the r-N-GDY presents great prospects as a controllable nanoporous membrane for efficient desalination and other applications.

Graphical abstract: Strain tunable nanoporous r-N-GDY membrane for efficient seawater desalination

Supplementary files

Article information

Article type
Paper
Submitted
23 May 2022
Accepted
15 Jul 2022
First published
18 Jul 2022

J. Mater. Chem. A, 2022,10, 16533-16540

Strain tunable nanoporous r-N-GDY membrane for efficient seawater desalination

M. Li, Y. Li, Y. Zhang, Y. Li, W. Li, M. Zhao and Y. Qu, J. Mater. Chem. A, 2022, 10, 16533 DOI: 10.1039/D2TA04108A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements