Chemical-free exfoliation of hexagonal boron nitride via cavitation-bubble plasma in water
Chemical-free exfoliation of hexagonal boron nitride via cavitation-bubble plasma in water
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DOI：
10.1088/1361-6463/ac717c
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发表时间：
2022-05
期刊：
影响因子：
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通讯作者：
Taku Goto;Kazuto Hatakeyama;Tsuyohito Ito;Kenichi Inoue;Y. Hakuta;Y. Shimizu;K. Terashima
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文献类型：
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作者：
Taku Goto;Kazuto Hatakeyama;Tsuyohito Ito;Kenichi Inoue;Y. Hakuta;Y. Shimizu;K. Terashima
六方氮化硼(h-BN)板材有许多应用，但目前低成本、环保的h-BN剥离技术产生的片材尺寸太小。我们开发了一种新的无化学方法来制备大尺寸的h-BN纳米片(BNNSS)，即在水中用带有空化气泡的等离子体剥离h-BN，我们称之为空化-气泡等离子体。与传统的液体剥离法相比，空泡等离子体剥离法在不减小h-BN片层尺寸的前提下，减小了h-BN的片层尺寸。此外，血浆还显著提高了去角质层产量。
Hexagonal boron nitride (h-BN) sheets have numerous applications, but current low-cost, environmentally friendly techniques for h-BN exfoliation yield undesirably small sheet sizes. We have developed a novel chemical-free method to prepare large h-BN nanosheets (BNNSs) by the exfoliation of h-BN using plasma with cavitation bubbles in water, named here as cavitation-bubble plasma. Unlike ordinary liquid exfoliation methods, which reduce the sheet size of BNNSs compared with that of the starting h-BN, the cavitation-bubble plasma process exfoliated h-BN without reducing the sheet size. Furthermore, the plasma dramatically improved the exfoliation yield.