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首页> 外文期刊>Sensors and Actuators >High-performance photoelectrochemical aptasensor for enrofloxacin based on Bi-doped ultrathin polymeric carbon nitride nanocomposites with SPR effect and carbon vacancies
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High-performance photoelectrochemical aptasensor for enrofloxacin based on Bi-doped ultrathin polymeric carbon nitride nanocomposites with SPR effect and carbon vacancies

机译：基于双掺杂超薄聚合物碳氮化物纳米复合材料的高性能光电化学Aptasensor具有SPR效应和碳缺损的基于双掺杂超薄聚合物碳氮化纳米复合材料

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摘要

The development of photoactive materials with high photoelectrochemical (PEC) activity and stability is of great significance for PEC biosensors. In this work, the performance of carbon vacancies (CVs) in PEC biosensors was explored. A facile one-pot hydrothermal approach was used to prepare Bi-doped ultrathin polymeric carbon nitride (Bi/CV-PCN) nanocomposites with CVs, which displayed high PEC activity and stability. The surface plasmon resonance (SPR) effect of Bi boosted the visible light capture, and the intermediate energy levels induced by CVs generation enhanced charge separation efficiency, resulting in a remarkable improvement in PEC stability. Furthermore, the PEC signal of the Bi/CV-PCN was 24-fold, 6-fold and 2-fold higher than that of pristine Bi, graphitic carbon nitride and PCN, respectively. Based on its promising PEC properties, Bi/CV-PCN was utilized as the photoactive material for the sensitive and selective detection of enrofloxacin (ENR) in the concentration range of 1.0 × 10~(-5)-1.0 × 10~3 ng·mL~(-1) with a limit of detection of 3.3 × 10~(-6) ng·mL~(-1). This work could not only provide new insights for the development of materials with high PEC activity and stability, but also offer a simple and high-performance method to detect ENR.
机译：具有高光电化学（PEC）活性和稳定性的光活性材料的发展对于PEC生物传感器具有重要意义。在这项工作中，探讨了PEC生物传感器中的碳障碍（CVS）的性能。用于制备具有CV的双掺杂超薄聚合物碳氮化合物（Bi / CV-PCN）纳米复合材料，其展示高PEC活性和稳定性的轻度单壶水热方法。 BI的表面等离子体共振（SPR）效应促进了可见光捕获，CVS产生引起的中间能量水平增强了电荷分离效率，导致PEC稳定性显着提高。此外，Bi / CV-PCN的PEC信号分别比原始BI，石墨氮化物和PCN高24倍，6倍和2倍。基于其有前途的PEC性质，Bi / CV-PCN用作光活性物质，作为浓度和选择性检测的苯甲烷（ENR）的浓度范围为1.0×10〜（ - 5）-1.0×10〜3 ng· ml〜（-1）的检测限为3.3×10〜（-6）ng·ml〜（-1）。这项工作不仅可以为具有高PEC活动和稳定性的材料的开发提供新的见解，还提供了一种简单而高性能的方法来检测eN。

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  • 来源
    《Sensors and Actuators》 |2020年第8期|128142.1-128142.9|共9页
  • 作者

    Yuhuan Xu; Ding Jiang; Meng Zhang; Zhenzhen Zhang; Jing Qian; Nan Hao; Caifeng Ding; Kun Wang;

  • 作者单位

    Key Laboratory of Modern Agriculture Equipment and Technology School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 PR China;

    Key Laboratory of Modern Agriculture Equipment and Technology School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 PR China;

    Key Laboratory of Modern Agriculture Equipment and Technology School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 PR China;

    Key Laboratory of Modern Agriculture Equipment and Technology School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 PR China;

    Key Laboratory of Modern Agriculture Equipment and Technology School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 PR China;

    Key Laboratory of Modern Agriculture Equipment and Technology School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 PR China;

    Key Laboratory of Optic-electric Sensing and Anal Chem. for Life Science OE School of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 PR China;

    Key Laboratory of Modern Agriculture Equipment and Technology School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 PR China Key Laboratory of Optic-electric Sensing and Anal Chem. for Life Science OE School of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 PR China;

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  • 正文语种 eng
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  • 关键词

    Carbon vacancies; SPR effect; Polymeric carbon nitride; Photoelectrochemical stability; Enrofloxacin;

    机译：碳职位空缺;SPR效果;聚合物氮化物;光电化学稳定性;瑞昔芬;

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