Supercritical carbon dioxide-assisted rapid synthesis of few-layer black phosphorus for hydrogen peroxide sensing

Biosensors & Bioelectronics
Shancheng YanYi Shi

Abstract

Solutions with large-scale dispersions of 2D black phosphorus (BP), often referred to as phosphorene, are obtained through solvent exfoliation. But, rapid phosphorene synthesis remains a challenge. Furthermore, although the chemical sensing capability of BP-based sensors has been theoretically predicted, its experimental verification remains lacking. In this study, we demonstrate the use of supercritical carbon dioxide-assisted rapid synthesis (5h) of few-layer BP. In addition, we construct a non-enzymatic hydrogen peroxide (H2O2) sensor based on few-layer BP for the first time to utilize BP degradation under ambient conditions. The proposed H2O2 sensor exhibits a considerably lower detection limit of 1 × 10(-7) M compared with the general detection limit of 1 × 10(-7) M-5 × 10(-5)M via electrochemical methods. Overall, the results of this study will not only expand the coverage of BP research but will also identify the important sensing characteristics of BP.

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Citations

Jan 24, 2017·Angewandte Chemie·Rui GusmãoMartin Pumera
Mar 1, 2018·Nanoscale·Jie ZhouGaixia Xu
Jun 26, 2018·Chemical Society Reviews·Cosimo AnichiniPaolo Samorì
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Oct 18, 2019·ACS Nano·Carmen C Mayorga-MartinezMartin Pumera
Jan 4, 2019·Chemical Reviews·Zheng MengKatherine A Mirica

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