Gonzalez Ortiz Danae, Pochat-Bohatier Celine, Cambedouzou Julien, Bechelany Mikhael, Miele Philippe
Institut Européen des Membranes (IEM), UMR-5635, CNRS, ENCSM, University of Montpellier, Place Eugene Bataillon, 34095 Montpellier, France.
Institut de Chimie Séparative de Marcoule (ICSM), CEA, CNRS, ENSCM, University of Montpellier, 30207 Marcoule, France.
Nanomaterials (Basel). 2018 Sep 12;8(9):716. doi: 10.3390/nano8090716.
A green approach to prepare exfoliated hexagonal boron nitride nanosheets (h-BNNS) from commercially pristine h-BN involving a two-step procedure was investigated. The first step involves the dispersion of pristine h-BN within an aqueous solution containing gelatin and potassium or zinc chloride using a sonication method. The second involves the removal of larger exfoliated h-BNNS through a centrifugation procedure. The exfoliation was caused not only by the sonication effect but also by intercalation of K⁺ and Zn ions. Transmission electronic microscopy, X-ray diffraction and Raman spectroscopy techniques show that the obtained h-BNNS generally display a thickness of about a few (2⁻3) layers with an exfoliation efficiency as high as 16.3 ± 0.4%.
研究了一种从商业纯六方氮化硼（h-BN）制备剥离型六方氮化硼纳米片（h-BNNS）的绿色方法，该方法包括两步。第一步是使用超声处理方法将原始h-BN分散在含有明胶以及氯化钾或氯化锌的水溶液中。第二步是通过离心过程去除较大的剥离h-BNNS。剥离不仅是由超声作用引起的，也是由K⁺和Zn离子的插层引起的。透射电子显微镜、X射线衍射和拉曼光谱技术表明，所获得的h-BNNS通常显示出约几层（2-3层）的厚度，剥离效率高达16.3±0.4%。
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