A Two-Dimensional NiMoO_(4)Nanowire Electrode for the Sensitive Determination of Hydroquinone in Four Types of Actual Water Samples  

作　　者：Li-Wei Bai Yu-Fen Shi Xue Zhang Xue-Bo Liu Feng Wu Chang Liu Jian-Feng Jia Wen-Bo Lu 

机构地区：[1]Key Laboratory of Magnetic Molecules and Magnetic Information Materials(Ministry of Education),School of Chemistry and Material Science,Shanxi Normal University,Taiyuan,030031,China [2]School of Medicine,Jiangsu University,Zhenjiang,212013,China [3]School of Grain Science and Technology,Jiangsu University of Science and Technology,Zhenjiang,212000,China

出　　处：《Journal of Analysis and Testing》2022年第4期382-392,共11页分析检测（英文）

基　　金：supported by the National Natural Science Foundation of China (21705103);the Applied Basic Research Project of Shanxi Province (202103021224251);Scientific and Technological Innovation Projects in Shanxi Universities (2019L0460);the Graduate Education Innovation Project of Shanxi Province (2021Y485);the 1331 Engineering of Shanxi Province

摘　　要：Hydroquinone(HQ)poses immeasurable risk to human health and the natural environment on the grounds of high toxicity of organic phenolic compounds.Herein,an innovative electrochemical sensor based on two-dimensional nickel molybdate nanowires(NiMoO_(4)NWs)is constructed for the ultra-sensitive determination of HQ,which can provide useful reference for the human health and environment protection.Two-dimensional NiMoO_(4)NWs are prepared successfully through a facile hydrothermal reaction and annealing process.The obtained two-dimensional NiMoO_(4)NWs are characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),high-resolution TEM(HRTEM),energy-dispersive X-ray spectroscopy(EDS)mapping and X-ray photoelectron spectroscopy(XPS).The accurate contents of Ni and Mo have been characterized by inductively coupled plasma atomic emission spectroscopy(ICP-AES),confirming that the lower content of the nickel in NiMoO_(4)NWs possesses the higher catalytic activity of HQ.Under the optimized conditions,the constructed HQ sensor exhibits satisfactory electrocatalytic activity with a low detection limit of 0.0355μmol/L(S/N=3),a wide linear range of 0.05-4600μmol/L and sensitivity of 170.064μA/(mmol cm^(2)).The sensor has been successfully applied to the detection of HQ in rainwater,tap water,domestic sewage and drinking water samples with satisfactory recovery.At the same time,this sensor has excellent reproducibility,selectivity,and stability.The constructed sensor has potential practical application value and broad application prospect in human health and environmental monitoring.

关 键 词：NiMoO_(4)nanowire Electrochemical sensor HYDROQUINONE Actual water samples 

分 类 号：O657.1[理学—分析化学] TB383.1[理学—化学] X832[一般工业技术—材料科学与工程]