广州化学2025，Vol.50Issue(6)：57-62,6.DOI:10.16560/j.cnki.gzhx.20250616
Fe@2-MI/SWCNTs/SPE电化学传感器的构建及对亚硝酸钠的检测
Development of a Fe@2-MI/SWCNTs Modified Electrochemical Sensor for Nitrite Detection
崔梓钰 1王俊怡 1李萍 1王诗1
作者信息
- 1. 湖北科技学院药学院,湖北 咸宁 437100
- 折叠
摘要
Abstract
Using ferric chloride hexahydrate(FeCl3·6H2O)and 2-methylimidazole(2-MI)as raw materials,the Fe@2-MI composite was synthesized and subsequently modified with single-walled carbon nanotubes(SWCNTs)on the surface of a screen-printed electrode(SPE),successfully fabricating the Fe@2-MI/SWCNTs/SPE electrochemical sensor.The morphology,structure,and chemical composition of the material were systematically analyzed using transmission electron microscopy(TEM),high-resolution field emission scanning electron microscopy(FE-SEM),X-ray photoelectron spectroscopy(XPS),and X-ray diffraction(XRD).The electrochemical performance was thoroughly analyzed using an electrochemical workstation.The results demonstrated that the sensor exhibited excellent electrocatalytic performance for sodium nitrite(NaNO2),with a linear detection range of 0.099～0.909 mM and a detection limit of 1.55 μM.In the detection of real water samples,the recovery rate reached 95.7%～102.8%.Furthermore,the sensor showed high sensitivity,excellent stability,and strong anti-interference capability,enabling rapid and accurate detection of NaNO2,indicating broad application prospects.关键词
电化学传感器/单壁碳纳米管/亚硝酸钠/丝网印刷电极/电化学检测Key words
electrochemical sensor/single-walled carbon nanotube/sodium nitrite/screen-printed electrode/electrochemical detection分类
化学化工引用本文复制引用
崔梓钰,王俊怡,李萍,王诗..Fe@2-MI/SWCNTs/SPE电化学传感器的构建及对亚硝酸钠的检测[J].广州化学,2025,50(6):57-62,6.
