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Related Experiment Video

Updated: Apr 3, 2026

Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol
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Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol

Published on: December 20, 2016

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Kilogram-Scale Water-Mediated Exfoliation Strategy for Defect-Free Single-Layer MXene Nanosheets.

Yunfa Si1,2,3, Zibo Chen1,2,3, Zuhao Shi2

  • 1Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya, China.

Advanced Materials (Deerfield Beach, Fla.)
|April 2, 2026
PubMed
Summary

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A novel water-mediated exfoliation method produces high-quality, single-layer MXene nanosheets at scale. These MXene membranes enable efficient lithium extraction from seawater, bridging the gap between lab research and industrial application.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemical Engineering

Background:

  • Single-layer MXene nanosheets offer functional versatility but are limited by quality issues from traditional high-yield methods.
  • Existing MXene production methods often involve high-energy input, leading to defects and a trade-off between quality and scalability.

Purpose of the Study:

  • To develop a scalable and high-yield method for producing high-quality single-layer MXene nanosheets.
  • To create MXene-based membranes for efficient lithium extraction from seawater.

Main Methods:

  • A water-mediated exfoliation strategy was employed, modifying the coordination environment of intercalated Li+ ions to enhance interlayer spacing.
  • Kilogram-scale production of single-layer MXene nanosheets with controlled quality was achieved.
Keywords:
defect freedirect lithium extractionkilogram scalesingle‐layer MXenewater‐mediated scission

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  • Highly oriented MXene membranes were assembled for ion transport studies.

    • Main Results:

    • The strategy yielded kilogram-scale single-layer MXene nanosheets with excellent structural integrity and large lateral dimensions (>10 µm) at high yields (>80%).
    • The resulting MXene membranes demonstrated superior Li+/Mg2+ selectivity (>170) due to minimized voids and steric hindrance to Mg2+ transport.
    • Direct lithium extraction from natural seawater using these membranes achieved a 36% yield.

    Conclusions:

    • The water-mediated exfoliation method successfully overcomes the quality-scalability trade-off in MXene production.
    • The developed MXene membranes show significant potential for scalable lithium resource recovery from seawater.
    • This work bridges the gap between laboratory findings and industrial applications in energy and resource recovery.