2D nanosheets and their composite membranes for water, gas, and ion separation

Seungju Kim, Huanting Wang, Young Moo Lee

Research output: Contribution to journalReview ArticleOtherpeer-review

50 Citations (Scopus)

Abstract

Two-dimensional nanosheets have shown great potential for separation applications because of their exceptional molecular transport properties. Nanosheet materials such as graphene oxides, metal–organic frameworks, and covalent organic frameworks display unique, precise, and fast molecular transport through nanopores and/or nanochannels. However, the dimensional instability of nanosheets in harsh environments diminishes the membrane performance and hinders their long-term operation in various applications such as gas separation, water desalination, and ion separation. Recent progress in nanosheet membranes has included modification by crosslinking and functionalization that has improved the stability of the membranes, their separation functionality, and the scalability of membrane formation while the membranes’ excellent molecular transport properties are retained. These improvements have enhanced the potential of nanosheet membranes in practical applications such as separation processes.

Original languageEnglish
Pages (from-to)17512-17527
Number of pages16
JournalAngewandte Chemie - International Edition
Volume58
Issue number49
DOIs
Publication statusPublished - 2 Dec 2019

Keywords

  • crosslinking
  • gas separation
  • ion separation
  • membranes
  • nanocomposites

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