Thin h-BN nanosheets synthesized using probe ultrasonication for dual functional applications

[摘要] Synthesis of hexagonal boron nitride (h-BN) nanosheets has attracted intensive attention due to their promising applications in pollutant adsorptions and optical sensors. Bath sonication is known as a traditional method for synthesizing nanosheets. However, the challenge remains in obtaining ultrathin h-BN nanosheets. Here, much thinner h-BN nanosheets are achieved using the probe ultrasonication technique, which produces much high shear forces as an efficient liquid exfoliation strategy. The as-prepared h-BN nanosheets show better performances in both dyes adsorption and Raman enhancement than the samples synthesized using the bath sonication. More importantly, the relatively stronger Raman enhancement can be adopted to evaluate the adsorption ability of the h-BN nanosheets. Hence, the current work demonstrates the new synthesis method of ultrathin h-BN nanosheets and their potential application to monitor the adsorption performance using Raman enhancement.

[学科分类] 电子与电气工程

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