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Multiwall carbon nanotubes-poly(diallyldimethylammonium chloride)-graphene hybrid composite film for simultaneous determination of catechol and hydroquinone

机译：碳纳米管-聚二烯丙基二甲基氯化铵-石墨烯杂化复合膜同时测定邻苯二酚和对苯二酚

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摘要

A multiwall carbon nanotubes-poly(diallyldimethylammonium chloride)-graphene modified glassy carbon electrode (MWCNTs-PDDA-GR/GCE) has been fabricated and used for simultaneous determination of catechol (CC) and hydroquinone (HQ). Transmission electron microscopy (TEM) and electrochemical impedance spectroscopy (EIS) results revealed that MWCNTs-PDDA-GR was successfully prepared with enhanced electron transfer ability. Differential pulse voltammetry (DPV) results showed that MWCNTs-PDDA-GR/GCE exhibited an excellent electrochemical performance, two correspondingly well-defined oxidation peaks with significantly different peak potentials (120 mV) and enhanced peak currents appeared at the modified electrode. Under the optimized conditions, the sensing platform showed wide linear responses for HQ and CC from 5.0 × 10~(-7) to 4.0 × 10~(-4) mol L~(-1) with detection limits (S/N=3) of 2.0 × 10~(-8) mol L~(-1) and 1.8 × 10~(-8) mol L~(-1) respectively. The proposed MWCNTs-PDDA-GR/GCE proved successful toward the sensitive and simultaneous detection of HQ and CC in practical water samples.
机译：制备了一种多壁碳纳米管-聚（二烯丙基二甲基氯化铵）-石墨烯修饰的玻碳电极（MWCNTs-PDDA-GR / GCE），并将其用于同时测定邻苯二酚（CC）和对苯二酚（HQ）。透射电子显微镜（TEM）和电化学阻抗谱（EIS）结果表明，成功制备了具有增强的电子转移能力的MWCNTs-PDDA-GR。差示脉冲伏安法（DPV）结果表明，MWCNTs-PDDA-GR / GCE表现出优异的电化学性能，在修饰电极上出现了两个相应的明确定义的氧化峰，具有明显不同的峰电位（120 mV）和增强的峰电流。在优化条件下，感测平台对HQ和CC的线性响应范围从5.0×10〜（-7）到4.0×10〜（-4）mol L〜（-1），检测限为（S / N = 3 ）分别为2.0×10〜（-8）mol L〜（-1）和1.8×10〜（-8）mol L〜（-1）。事实证明，所提出的MWCNTs-PDDA-GR / GCE可成功地同时检测实际水样中的HQ和CC。

著录项

  • 来源
    《Sensors and Actuators》 |2015年第1期|111-118|共8页
  • 作者

    Daimin Song; Jianfei Xia; Feifei Zhang; Sai Bi; Wenjun Xiang; Zonghua Wang; Lin Xia; Yanzhi Xia; Yanhui Li; Linhua Xia;

  • 作者单位

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

    Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles, Qingdao University, Qingdao, Shandong 266071, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Electrochemical sensors; Graphene; Multiwall carbon nanotubes; Hydroquinone; Catechol; Simultaneous determination;

    机译：电化学传感器石墨烯多壁碳纳米管;对苯二酚;儿茶酚;同时测定;

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