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      Crystalline boron nitride nanosheets by sonication-assisted hydrothermal exfoliation

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          Abstract

          A simple method to prepare two-dimensional hexagonal boron nitride (h-BN) scalably is essential for practical applications. Despite intense research in this area, high-yield production of two-dimensional h-BN with large size and high crystallinity is still a key challenge. In the present work, we propose a simple exfoliation process for boron nitride nanosheets (BNNSs) with high crystallinity by sonication-assisted hydrothermal method, via the synergistic effect of the high pressure, and cavitation of the sonication. Compared with the method only by sonication, the sonication-assisted hydrothermal method can get the fewer-layer BNNSs with high crystallinity. Meanwhile, it can reach higher yield of nearly 1.68%, as the hydrothermal method with the yield of only 0.12%. The simple sonication-assisted hydrothermal method has potential applications in exfoliating other layered materials, thus opening new ways to produce other layered materials in high yield and high crystallinity.

          Author and article information

          Journal
          J Adv Ceram
          Journal of Advanced Ceramics
          Tsinghua University Press and Springer-Verlag Berlin Heidelberg (USA )
          2227-8508
          2226-4108
          01 March 2019
          01 October 2019
          : 8
          : 1
          : 72-78
          Affiliations
          [1] aState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
          Author notes
          *Corresponding authors: K. Chen, E-mail: kxchen@ 123456mail.tsinghua.edu.cn ; G. Liu, E-mail: liugh02@ 123456163.com
          Article
          s40145-018-0293-1
          10.1007/s40145-018-0293-1
          418898ba-8435-44a6-8b18-1ca751dc3b5d
          Copyright © The Author(s)

          This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See https://creativecommons.org/licenses/by/4.0/.

          History
          : 10 June 2018
          : 17 July 2018
          : 25 July 2018
          Categories
          Research Article

          Materials technology,Materials properties,Materials characterization,Composites,Ceramics
          sonication-assisted,boron nitride nanosheet (BNNS),high crystallinity,hydrothermal method

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