N,P共掺杂碳修饰电极用于灵敏检测4-硝基苯酚的研究  

Study on N,P Co-doped Carbon-Modified Electrode for Sensitive Detection of 4-Nitrophenol

作　　者：徐雯[1] 李仁报 薛诚 张凯凯 XU Wen;LI Renbao;XUE Cheng;ZHANG Kaikai(School of Chemistry and Chemical Engineering,Huangshan University,Huangshan 245041,China;School of Materials Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]黄山学院化学化工学院,安徽黄山245041 [2]哈尔滨工程大学材料科学与化学工程学院,黑龙江哈尔滨150001

出　　处：《黄山学院学报》2025年第2期31-36,共6页Journal of Huangshan University

基　　金：安徽省高等学校科学研究重点项目(2023AH051376);国家级大学生创新创业训练计划(202310375043);高校优秀青年骨干教师国内访学研修项目(gxgnfx2021147)。

摘　　要：以金属有机框架材料ZIF-8为前驱体,通过引入次磷酸钠作为磷掺杂剂,经高温热解成功制备了N,P双掺杂多孔碳材料(N,P-C)。采用滴涂法将所得碳材料均匀负载于玻碳电极表面,构建了新型N,P共掺杂碳修饰电极(N,P-C/GCE)。通过循环伏安法(CV)和差分脉冲伏安法(DPV)系统研究了4-硝基苯酚(4-NP)在N,P-C/GCE电极界面的电化学氧化还原行为。实验结果表明:该双掺杂碳材料对4-NP的氧化还原反应展现出显著的电催化活性,其氧化峰电流在5.0×10^(-7)~1.0×10^(-4)mol·L^(-1)的浓度区间内呈现良好的分段线性响应,其检出限低至8.0×10^(-8)mol·L^(-1)(S/N=3)。该方法灵敏度高,可应用于环境水体样品中4-NP的高精度检测。In this study,N,P co-doped porous carbon(N,P-C)is prepared through high-temperature pyrolysis with ZIF-8 as a precursor and sodium hypophosphite as a phosphorus dopant.A novel N,P co doped carbon-modified electrode(N,P-C/GCE)is constructed by a drop-coating method uniformly loading obtained carbon material onto the surface of a glassy carbon electrode(GCE).The electrochemical redox behavior of 4-nitrophenol(4-NP)at the N,P-C/GCE interface is systematically investigated through cyclic voltammetry(CV)and differential pulse voltammetry(DPV).Experimental results indicate that the co-doped carbon material exhibited significant electrocatalytic activity toward the redox reaction of 4-NP.The oxidation peak current shows good segmented linear responses within the concentration range of 5.0×10^(-7)~1.0×10^(-4) mol·L-1,and its detection limit was as low as 8.0×10^(-8) mol·L^(-1)(S/N=3).This highly sensitive method can be effectively applied for precise detection of 4-NP in environmental water samples.

关 键 词：N P掺杂碳 4-硝基苯酚 电化学检测 

分 类 号：O657.1[理学—分析化学]