articleAngewandte Chemie International EditionJan 10, 2017Closed access

A Two‐Dimensional Lamellar Membrane: MXene Nanosheet Stacks

LDLi DingYWYanying WeiYWYanjie WangHCHongbin ChenJCJürgen Caro

South China University of Technology · Leibniz University Hannover

PubMed
Indexed incrossrefpubmed

Abstract

Abstract Two‐dimensional (2D) materials are promising candidates for advanced water purification membranes. A new kind of lamellar membrane is based on a stack of 2D MXene nanosheets. Starting from compact Ti 3 AlC 2 , delaminated nanosheets of the composition Ti 3 C 2 T x with the functional groups T (O, OH, and/or F) can be produced by etching and ultrasonication and stapled on a porous support by vacuum filtration. The MXene membrane supported on anodic aluminum oxide (AAO) substrate shows excellent water permeance (more than 1000 L m −2 h −1 bar −1 ) and favorable rejection rate (over 90 %) for molecules with sizes larger than 2.5 nm. The water permeance through the MXene membrane is much higher than that…

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Topics & keywords

Topics
Keywords
  • Permeance
  • Nanosheet
  • Membrane
  • Lamellar structure
  • Materials science
  • Chemical engineering
  • Filtration (mathematics)
  • Oxide
UN Sustainable Development Goals
  • Clean water and sanitation
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