期刊
CARBON LETTERS
卷 32, 期 5, 页码 1277-1285出版社
SPRINGER JAPAN KK
DOI: 10.1007/s42823-022-00353-7
关键词
CeO2 nanoparticles; Graphene; Electrochemical sensor; Pentachlorophenol
资金
- National Natural Science Foundation of China [62004143]
- Natural Science Foundation of Hubei Province [2021CFB133]
- Innovation Project of Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education [LCX2021003]
- Open Research Fund of Key Laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education [2021JYBKF05]
In this study, a convenient and sensitive electrochemical sensor was constructed to detect residual trace amounts of PCP. The sensor exhibited excellent electrocatalytic activity for the oxidation of PCP, allowing for a wide linear range of detection and a low detection limit.
Pentachlorophenol (PCP), as one of the common pesticide and preservatives, is easily accumulated in living organisms. Considering the high toxicity of PCP, the development of an effective and sensitive inspection method to determine the residual trace amounts of PCP continues to be a significant challenge. Herein, a convenient and sensitive electrochemical sensor is constructed by modifying glassy carbon electrode with cerium dioxide (CeO2) nanoparticles anchored graphene (CeO2-GR) to detect trace PCP. Benefiting from the two-dimensional lamellar structural advantages, the extraordinary electron-transfer properties, as well as the intensive coupling effect between CeO2 nanoparticles and graphene, the afforded CeO2-GR electrode nanomaterial possesses excellent electrocatalytic activity for the oxidation of PCP. Under the optimum synthetic conditions, the PCP oxidation peak currents of developed CeO2-GR sample exhibit a wide linear range of 5-150 mu M. Moreover, the corresponding detection limit of PCP on the CeO2-GR electrode is as low as 0.5 mu M. Apart from providing a promising electrochemical sensor, this work, most importantly, promotes an efficient route for the construction of highly active sensing electrode materials. [GRAPHICS] .
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据