Liu Lei, Yang Weiye, Zhang Hui, Yan Xueqian, Liu Yingkai
Yunnan Key Laboratory of Opto-Electronic Information Technology, Yunnan Normal University, Kunming, 650500, China.
Institute of Physics and Electronic Information, Yunnan Normal University, Kunming, 650500, China.
Nanoscale Res Lett. 2022 Jan 6;17(1):7. doi: 10.1186/s11671-021-03647-3.
Hybrid CdS/MoS with branch and leaf shaped structures are successfully synthesized by hydrothermal method. It is applied to detect volatile organic compounds, a basic source of indoor air pollution with deleterious effects on the human health. The sensor based on CdS/MoS displays an outstanding response to alcohols among numerous gases. Their response to 100 ppm ethanol and isopropanol reaches 56 and 94, respectively. Benefiting from the dendrite-like biomimetic structure and synergy effect of CdS and MoS, the sensor exhibits higher response than traditional gas sensor. For multiple alcohols, the limit of detection reached ppb level. In addition, by comparing the response of ethanol, isopropanol, isoamyl alcohol and their mixtures with acetone and methanal, a strong resistance interference is observed. This work proved that the modified detector holds broad promise in the detection of alcohols.
通过水热法成功合成了具有枝叶状结构的混合硫化镉/硫化钼。它被用于检测挥发性有机化合物，这是室内空气污染的一个基本来源，对人体健康有有害影响。基于硫化镉/硫化钼的传感器在众多气体中对醇类表现出出色的响应。它们对100 ppm乙醇和异丙醇的响应分别达到56和94。受益于硫化镉和硫化钼的枝状仿生结构和协同效应，该传感器比传统气体传感器表现出更高的响应。对于多种醇类，检测限达到了ppb水平。此外，通过比较乙醇、异丙醇、异戊醇及其与丙酮和甲醛混合物的响应，观察到了强烈的电阻干扰。这项工作证明了改进后的探测器在醇类检测方面具有广阔的前景。
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