| 氮掺杂碳纳米管的制备及其在铅离子检测中的应用 |
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| 引用本文： | 李善金,李奕怀,汪玲玲,吴敏昌,乔永民,王利军.氮掺杂碳纳米管的制备及其在铅离子检测中的应用[J].上海第二工业大学学报,2014(4):301-305. |
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| 作者姓名： | 李善金 李奕怀 汪玲玲 吴敏昌 乔永民 王利军 |
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| 作者单位： | [1]上海第二工业大学环境与材料工程学院,上海201209; [2]上海杉杉科技有限公司,上海201209 |
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| 基金项目： | 国家自然科学基金（Nos.51174274,21101105）、上海市曙光计划（No.09SG54）、上海市教育委员会科研创新项目（Nos.12ZZ195,13YZl34）、上海市教委优秀青年资助计划（No.ZZEGD12003）、上海市晨光计划（No.12CG66）资助 |
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| 摘 要： | 制备了氮掺杂改性的碳纳米管(CNx),并对其进行了扫描电子显微镜(Scanning Electron Microscopy,SEM)和X射线衍射仪(XRD,X-Ray Diffraction)表征。利用循环伏安法测定了铅离子在氮掺杂碳纳米管修饰电极上的电化学行为。结果表明,氮掺杂碳纳米管修饰电极对铅离子有明显的电催化行为,而且它在铅离子检测中的效果明显优于裸的玻碳电极。在拟定条件下,氮掺杂碳纳米管修饰电极对铅离子的检测限为0.06μmol/L,线性范围为0.06～0.1μmol/L,并且具有良好的稳定性与重复性,因而该电极具有良好的应用前景。
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| 关 键 词： | 氮掺杂碳纳米管 修饰电极 循环伏安法 铅离子检测限 |
Preparation of Nitrogen-Doped Carbon Nanotubes and Its Application for the Determination of Lead Ion |
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| Affiliation: | LI Shan-jin,LI Yi-huai,WANG Ling-ling,WU Min-chang,QIAO Yong-min,WANG Li-jun(1. School of Environmental and Materials Engineering, Shanghai Second Polytechnic University, Shanghai 201209, E R. China; 2. Shanghai Shanshan Technology Co., Ltd., Shanghai 201209, E R. China) |
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| Abstract: | The nitrogen-doped carbon nanotubes modified （CNx） was prepared, and characterized by the SEM and XRD. The lead ions electrochemical behavior in the CNx electrode was determined by cyclic voltammetry （CV）. The experimental results indicated that CNx electrode acted on lead ions with electro-catalytic behavior, and the current response of CNx electrode was superior to that of the bare glassy carbon electrode for lead ions. Under proposed conditions, the CNx electrode detection limit of lead ion was 0.06 μmol/L, linear range 0.06—0.1 μmol/L, and CNx electrode has good stability and repeatability, with good application prospects. |
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| Keywords: | s：nitrogen-doped carbon nanotubes modified electrode cyclic voltammetry lead ion detection limit |
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