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首页> 外文期刊>New Journal of Chemistry >Significant enhancement in the electrochemical determination of 4-aminophenol from nanoporous gold by decorating with a Pd@CeO2 composite film
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Significant enhancement in the electrochemical determination of 4-aminophenol from nanoporous gold by decorating with a Pd@CeO2 composite film

机译：通过PD @ CeO2复合膜装饰通过装饰纳米多孔金的电化学测定纳米酚酚的电化学测定显着增强

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摘要

4-Aminophenol (4-AP) is a highly toxic environmental pollutant and contaminant of medicine, which is widely used in industries and daily life. Therefore, the development of a reliable sensor for determining the amount of 4-AP is of great importance for the protection of human and environmental health. Herein, by fabricating a Pd@CeO2 composite on a nanoporous gold-coated carbon fiber paper (NPG/CFP), the sensing properties for 4-AP can be largely enhanced. Combining the significant increase in the catalytic activity of the Pd@CeO2 composite (derived from the strong interactions between Pd and CeO2) with the NPG and NPG/CFP hierarchical porous structure having a high electrochemically active surface area, the electrode achieved excellent detection of 4-AP. It manifested an extremely high sensitivity of 75.4 mu A mu M-1 and 56.5 mu A mu M-1 in the concentration range from 0.005 mu M to 0.03 mu M and 0.03 mu M to 9 mu M, respectively. The detection limit reached as low as 4 nM under optimized conditions (S/N = 3). The electrode also possesses long-term stability and presents great anti-interference ability. All these results demonstrate that the electrode is a promising candidate for future sensors for monitoring 4-AP in water and pharmaceuticals.
机译：4-氨基酚（4-AP）是一种富有毒的环境污染物和药物污染物，广泛用于行业和日常生活。因此，用于确定4-AP的可靠传感器的开发对于保护人类和环境健康是非常重要的。这里，通过在纳米孔镀金碳纤维纸（NPG / CFP）上制造PD @ CeO2复合材料，可以大大提高4-AP的感测性能。结合Pd @ CeO2复合物（Pd和CeO2之间的强相互作用）的催化活性的显着增加与具有高电化学活性表面积的NPG和NPG / CFP分层多孔结构，电极达到4的优异检测-ap。它表现出极高的浓度为75.4μm-1和56.5μm-1，浓度范围为0.005μm至0.03μm和0.03μm至9μm。在优化条件下，检测限达到4nm至4nm（s / n = 3）。电极还具有长期稳定性并具有很大的抗干扰能力。所有这些结果表明，电极是用于在水和药物中监测4-AP的未来传感器的有望候选者。

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  • 来源
    《New Journal of Chemistry》 |2020年第7期|共10页
  • 作者

    Li Gang; Sun Peng; Wu Fanggen; Zhao Jie; Han Dongxue; Cui Guofeng;

  • 作者单位

    South China Univ Technol Sch Mech &

    Automot Engn Guangzhou 510640 Peoples R China;

    Sun Yat Sen Univ Sch Chem Minist Educ Key Lab Polymer Composite &

    Funct Mat Guangzhou 510275 Peoples R China;

    South China Univ Technol Sch Mech &

    Automot Engn Guangzhou 510640 Peoples R China;

    South China Univ Technol Sch Mech &

    Automot Engn Guangzhou 510640 Peoples R China;

    Guangzhou Univ Sch Chem &

    Chem Engn Ctr Adv Analyt Sci Guangzhou 510006 Peoples R China;

    Sun Yat Sen Univ Sch Chem Minist Educ Key Lab Polymer Composite &

    Funct Mat Guangzhou 510275 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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