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Kostoglou N, Polychronopoulou K, Rebholz C (2015) Thermal and chemical stability of hexagonal boron nitride (h-BN) nanoplatelets. Wang Y, Xu L, Yang Z, Xie H, Jiang P, Dai J, Luo W, Yao Y, Hitz E, Yang R, Yang B, Hu L (2018) High temperature thermal management with boron nitride nanosheets. Pakdel A, Zhi C, Bando Y, Golberg D (2012) Low-dimensional boron nitride nanomaterials. The average lateral size of the exfoliated nanosheets is 123 nm and only about three layers. When the mass ratio of h-BN and potassium permanganate is 1 g: 5 g, the reaction time is 9 h, and the reaction temperature is 60 ☌, the obtained nanosheets have the best hydroxylation and good stripping effect.

It indicates that the edge of the BNNS introduces more oxygen than h-BN, the nitrogen atoms at the edge are replaced by oxygen atoms to achieve hydroxylation. %), and the content of O element in the edge of the sheets is nearly 30% higher than that in the center. %) is significantly higher than that of B element in the edge of the sheets (33.10 at. The results showed that the content of N element in the center of the BNNS (46.44 at. The hydroxylated structure of the surface and formation mechanism of BNNS were analyzed, and the optimal controlled conditions were explored by orthogonal test. In this paper, edge-hydroxylated BNNS was obtained by stripping hexagonal boron nitride (h-BN) using wet chemical reaction method. The edge-hydroxylated boron nitride nanosheets (BNNS) not only has excellent thermal stability, electrical properties, but also has high specific surface area, good dispersibility and compatibility.