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Methods of hexagonal boron nitride exfoliation and its functionalization: covalent and non-covalent approaches
RSC Advances ( IF 3.9 ) Pub Date : 2021-09-23 , DOI: 10.1039/d1ra05727h Chandkiram Gautam 1 , Selvam Chelliah 2
RSC Advances ( IF 3.9 ) Pub Date : 2021-09-23 , DOI: 10.1039/d1ra05727h Chandkiram Gautam 1 , Selvam Chelliah 2
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The exfoliation of two-dimensional (2D) hexagonal boron nitride nanosheets (h-BNNSs) from bulk hexagonal boron nitride (h-BN) materials has received intense interest owing to their fascinating physical, chemical, and biological properties. Numerous exfoliation techniques offer scalable approaches for harvesting single-layer or few-layer h-BNNSs. Their structure is very comparable to graphite, and they have numerous significant applications owing to their superb thermal, electrical, optical, and mechanical performance. Exfoliation from bulk stacked h-BN is the most cost-effective way to obtain large quantities of few layer h-BN. Herein, numerous methods have been discussed to achieve the exfoliation of h-BN, each with advantages and disadvantages. Herein, we describe the existing exfoliation methods used to fabricate single-layer materials. Besides exfoliation methods, various functionalization methods, such as covalent, non-covalent, and Lewis acid–base approaches, including physical and chemical methods, are extensively described for the preparation of several h-BNNS derivatives. Moreover, the unique and potent characteristics of functionalized h-BNNSs, like enhanced solubility in water, improved thermal conductivity, stability, and excellent biocompatibility, lead to certain extensive applications in the areas of biomedical science, electronics, novel polymeric composites, and UV photodetectors, and these are also highlighted.
中文翻译：
六方氮化硼剥离及其功能化方法：共价和非共价方法
从块体六方氮化硼 (h-BN) 材料中剥离二维 (2D) 六方氮化硼纳米片 (h-BNNS) 由于其令人着迷的物理、化学和生物特性而引起了人们的强烈兴趣。许多剥离技术提供了用于收获单层或几层 h-BNNS 的可扩展方法。它们的结构与石墨非常相似，并且由于其优异的热、电、光学和机械性能而具有许多重要的应用。从块状堆叠的 h-BN 中剥离是获得大量少层 h-BN 的最具成本效益的方法。本文讨论了多种实现 h-BN 剥离的方法，每种方法都有优点和缺点。在这里，我们描述了用于制造单层材料的现有剥离方法。除了剥离方法之外，各种官能化方法，例如共价、非共价和路易斯酸碱方法，包括物理和化学方法，被广泛描述用于制备几种 h-BNNS 衍生物。此外，功能化h-BNNS独特而有效的特性，如增强的水溶性、改善的导热性、稳定性和优异的生物相容性，在生物医学、电子学、新型聚合物复合材料和紫外光电探测器等领域具有广泛的应用，并且这些也被突出显示。
更新日期：2021-09-23
中文翻译：
六方氮化硼剥离及其功能化方法：共价和非共价方法
从块体六方氮化硼 (h-BN) 材料中剥离二维 (2D) 六方氮化硼纳米片 (h-BNNS) 由于其令人着迷的物理、化学和生物特性而引起了人们的强烈兴趣。许多剥离技术提供了用于收获单层或几层 h-BNNS 的可扩展方法。它们的结构与石墨非常相似，并且由于其优异的热、电、光学和机械性能而具有许多重要的应用。从块状堆叠的 h-BN 中剥离是获得大量少层 h-BN 的最具成本效益的方法。本文讨论了多种实现 h-BN 剥离的方法，每种方法都有优点和缺点。在这里，我们描述了用于制造单层材料的现有剥离方法。除了剥离方法之外，各种官能化方法，例如共价、非共价和路易斯酸碱方法，包括物理和化学方法，被广泛描述用于制备几种 h-BNNS 衍生物。此外，功能化h-BNNS独特而有效的特性，如增强的水溶性、改善的导热性、稳定性和优异的生物相容性，在生物医学、电子学、新型聚合物复合材料和紫外光电探测器等领域具有广泛的应用，并且这些也被突出显示。
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