Ultrasonic-Ball Milling: A Novel Strategy to Prepare Large-Size Ultrathin 2D Materials

Dong Shi, Mingzhi Yang, Bin Chang, Zizheng Ai, Kang Zhang, Yongliang Shao, Shouzhi Wang*, Yongzhong Wu, Xiaopeng Hao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Large-size ultrathin 2D materials, with extensive applications in optics, medicine, biology, and semiconductor fields, can be prepared through an existing common physical and chemical process. However, the current exfoliation technologies still need to be improved upon with urgency. Herein, a novel and simple “ultrasonic-ball milling” strategy is reported to effectively obtain high quality and large size ultrathin 2D materials with complete lattice structure through the introduction of moderate sapphire (Al2O3) abrasives in a liquid phase system. Ultimately numerous high-quality ultrathin h-BN, graphene, MoS2, WS2, and BCN nanosheets are obtained with large sizes ranging from 1–20 µm, small thickness of ≈1–3 nm and a high yield of over 20%. Utilizing shear and friction force synergistically, this strategy provides a new method and alternative for preparing and optimizing large size ultrathin 2D materials.

Original languageEnglish (US)
Article number1906734
JournalSmall
Volume16
Issue number13
DOIs
StatePublished - Apr 1 2020

Bibliographical note

Funding Information:
This work is supported by the National Natural Science Foundation of China (Contract No. 51872162, 11890700), the Natural Science Foundation of Shandong Province (Contract ZR2018MEM013), and China Postdoctoral Science Foundation (Contract 2019TQ0172).

Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • large-size 2D materials
  • physical exfoliation
  • ultrasonic-ball milling
  • undistorted lattice structure

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • General Chemistry
  • General Materials Science

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