铋膜/SDS/三维石墨烯泡沫修饰玻碳电极测定水中铅离子  

Determination of Lead Ion by Bismuth/SDS/3D Graphene Foam Modified Glassy Carbon Electrode

作　　者：董凯[1] 裘娜 Dong Kai;Qiu Na(College of Chemistry Chemical Engineering and Material Science,Zaozhuang 277160;School of City and Architecture Engineering,Zaozhuang University,Zaozhuang 277160,China)

机构地区：[1]枣庄学院化学化工与材料科学学院,山东枣庄277160 [2]枣庄学院城市与建筑工程学院,山东枣庄277160

出　　处：《广东化工》2021年第17期180-181,177,共3页Guangdong Chemical Industry

摘　　要：本文以铋膜/十二烷基硫酸钠/三维石墨烯修饰玻碳电极为工作电极,采用方波阳极溶出伏安法研究了铅离子的电化学测定方法。比较了不同材料修饰时电极性能的差异,探讨了溶液p H值、铋膜厚度、沉积电势、沉积时间等因素对检测信号的影响。实验结果表明,修饰电极检测铅离子的线性范围宽,检出限低,且该电极具有良好的一致性、重现性、稳定性。A glassy carbon electrode modified by bismuth/SDS/3D graphene foam used as working electrode,the electrochemical determination of lead ions was studied by anodic stripping voltammetry.The electrode modified by different nanomaterials were compared,and the effects of solution pH value,bismuth film thickness,deposition potential and deposition time on the electrochemical response of lead ions were investigated to obtain the optimal sensitivity.The experimental results show that the modified electrode has wide linear range and low detection limit.The modified electrode showed good consistency,reproducibility and stability.

关 键 词：三维石墨烯 修饰电极 阳极溶出伏安法 铋膜 铅离子 

分 类 号：TQ[化学工程]