Functionalized Carbon Honeycomb Membranes for Reverse Osmosis Water Desalination

Aleksandr S. Voronin, Duc Tam Ho, Udo Schwingenschlögl*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Reverse osmosis desalination is a common technique to obtain fresh water from saltwater. Conventional membranes suffer from a trade-off between salt rejection and water permeability, raising a need for developing new classes of membranes. C-based membranes with porous graphene and carbon nanotubes offer high salt rejection, water permeability, and fouling resistance. However, controlling the pore size of these membranes is challenging. Therefore, a carbon honeycomb membrane is studied using classical molecular dynamics simulations. It is reported that functionalization with −COO groups provides 100% salt rejection with around 1000 times higher water permeability than conventional polyamide membranes. Atomic-level understanding of the effect of the functional groups' location on salt rejection and water permeability is developed.

Original languageEnglish (US)
Article number2300250
JournalAdvanced Materials Interfaces
Issue number30
StateAccepted/In press - 2023

Bibliographical note

Funding Information:
The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST).

Publisher Copyright:
© 2023 The Authors. Advanced Materials Interfaces published by Wiley-VCH GmbH.


  • graphene foam
  • membrane
  • reverse osmosis
  • water desalination

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering


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