用于室温下可见光激活的一氧化氮传感的MXene/WS杂化物
MXene/WS hybrids for visible-light-activated NO sensing at room temperature.
作者信息
Xia Yi, He Sufang, Wang Junming, Zhou Liexing, Wang Jing, Komarneni Sridhar
机构信息
Research Center for Analysis and Measurement, Kunming University of Science and Technology, and Analytic & Testing Research Center of Yunnan, Kunming 650093, China.
The Key Laboratory of Unconventional Metallurgy, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China.
出版信息
Chem Commun (Camb). 2021 Sep 9;57(72):9136-9139. doi: 10.1039/d1cc03474j.
Optoelectronic gas sensors based on two-dimensional (2D) materials are touted as potential candidates for NO sensing at room temperature. However, most of the developed optoelectronic sensors to date are confined to the ultraviolet region with unsatisfactory performance. Herein, a room-temperature visible-light-activated optoelectronic NO sensor based on 2D/2D TCT/WS nanocomposites is presented. The TCT/WS-based gas sensor exhibited fast response/recovery rate, full reversibility, long stability, good selectivity, and low detection limit (10 ppb). In addition to the efficient interfacial charge separation provided by 2D/2D heterostructures, the improvement of optoelectronic NO sensing performance was attributed to the visible-light-activation effects. This study provides a promising method to fabricate room-temperature high-performance gas sensors based on 2D nanomaterials.
基于二维（2D）材料的光电气体传感器被认为是室温下检测一氧化氮（NO）的潜在候选者。然而，迄今为止，大多数已开发的光电传感器都局限于紫外区域，其性能并不理想。在此，我们展示了一种基于二维/二维TCT/WS纳米复合材料的室温可见光激活光电NO传感器。基于TCT/WS的气体传感器表现出快速的响应/恢复速率、完全可逆性、长期稳定性、良好的选择性以及低检测限（10 ppb）。除了二维/二维异质结构提供的高效界面电荷分离外，光电NO传感性能的提升还归因于可见光激活效应。本研究为基于二维纳米材料制备室温高性能气体传感器提供了一种有前景的方法。
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