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首页> 外文期刊>Nanotechnology >Facile synthesis of self-assembled carbon nanotubes/dye composite films for sensitive electrochemical determination of Cd(II) ions
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Facile synthesis of self-assembled carbon nanotubes/dye composite films for sensitive electrochemical determination of Cd(II) ions

机译：自组装碳纳米管/染料复合膜的容易合成，用于CD（II）离子的敏感电化学测定

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摘要

A new type of voltammetric sensor material has been fabricated via a facile self-assembled method. A modified glassy carbon electrode (GCE) by phenylsulfonic groups grafted multi-walled carbon nanotubes (CNT-SO3H) with dye molecules via Langmuir-Blodgett (LB) assembling (CNT-SO3H/dye-LB/GCE) were prepared for detecting trace levels of cadmium (Cd-2(+)) ions by square wave anodic stripping voltammetry. The synergy effect between CNT-SO3H and dye as well as orderly aggregates in composite LB films contributed to greatly enhancing the determination performance. Under selected conditions, voltammetric response of the fabricated electrochemical sensor in 0.1 M acetate buffer solution containing Bi-3(+) ions for Cd-2(+) ions was linear with its concentration in the range 0.1 to 1.2 mu M, with a detection limit of 0.08 mu M. In addition, the preparation process of self-assembled composite film modified electrodes was simple, non-toxic, exhibiting higher sensitivity and potential application prospects in aspects of heavy metal ions detection and environmental analysis.
机译：通过容易自组装的方法制造了一种新型的伏安传感器材料。制备苯磺酰基的改性玻璃碳电极（GCE）通过Langmuir-Blodgett（LB）组装（CNT-SO3H /染料-1B / GCE）进行染料分子与染料分子接枝多壁碳纳米管（CNT-SO3H），用于检测痕量水平方波阳极溶出伏安法（CD-2（+））离子。 CNT-SO3H和染料之间的协同效应以及复合LB膜中的有序聚集蛋白有助于大大提高测定性能。在所选条件下，含有Bi-3（+）离子的0.1M乙酸盐缓冲溶液中的制造电化学传感器的伏安响应是线性的，其浓度为0.1-1.2μm，具有检测此外，下限为0.08μm。此外，自组装复合膜改性电极的制备过程简单，无毒，在重金属离子检测和环境分析方面表现出更高的灵敏度和潜在的应用前景。

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  • 来源
    《Nanotechnology》 |2018年第44期|共11页
  • 作者

    Chen Kaiyue; Li Junkai; Zhang Lexin; Xing Ruirui; Jiao Tifeng; Gao Faming; Peng Qiuming;

  • 作者单位

    Yanshan Univ State Key Lab Metastable Mat Sci &

    Technol Qinhuangdao 066004 Peoples R China;

    Yanshan Univ Sch Environm &

    Chem Engn Hebei Key Lab Appl Chem Qinhuangdao 066004 Peoples R China;

    Yanshan Univ Sch Environm &

    Chem Engn Hebei Key Lab Appl Chem Qinhuangdao 066004 Peoples R China;

    Yanshan Univ Sch Environm &

    Chem Engn Hebei Key Lab Appl Chem Qinhuangdao 066004 Peoples R China;

    Yanshan Univ State Key Lab Metastable Mat Sci &

    Technol Qinhuangdao 066004 Peoples R China;

    Yanshan Univ Sch Environm &

    Chem Engn Hebei Key Lab Appl Chem Qinhuangdao 066004 Peoples R China;

    Yanshan Univ State Key Lab Metastable Mat Sci &

    Technol Qinhuangdao 066004 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    electrochemical sensor; Langmuir-Blodgett film; carbon nanotube; cadmium ion; dye molecules;

    机译：电化学传感器;Langmuir-Blodgett薄膜;碳纳米管;镉离子;染料分子;

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