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首页> 外文期刊>Journal of Hazardous Materials >Novel nano-engineered environmental sensor based on polymelamine/graphitic-carbon nitride nanohybrid material for sensitive and simultaneous monitoring of toxic heavy metals
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Novel nano-engineered environmental sensor based on polymelamine/graphitic-carbon nitride nanohybrid material for sensitive and simultaneous monitoring of toxic heavy metals

机译：基于聚酰胺/石墨 - 氮化碳氮化物材料的新型纳米工程环境传感器，用于敏感，同时监测有毒重金属

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摘要

Heavy metal ions (HMIs) pollution is always a serious issue worldwide. Therefore, monitoring HMIs in environmental water is an important and challenging step to ensure environmental health and human safety. In this study, we spotlight an effortless, single-step in-situ electrochemical polymerization deposition technique to fabricate a novel, low-cost, efficient, nano-engineered poly(melamine)/graphitic-carbon nitride nanonetwork (PM/g-C3N4) modified screen-printed carbon electrode (SPE) for sensitive, selective, and simultaneous electrochemical monitoring of toxic HMIs in environmental waters. g-C3N4 nanomaterial was prepared using melamine as a precursor via pyrolysis technique. As-prepared g-C3N4 and melamine monomer were electrochemically insitu polymerized/deposited over pre-anodized SPE (ASPE) using cyclic voltammetry technique. XRD, XPS, and SEM were engaged to characterize the developed electrode. The fabricated PM/g-C3N4/ASPE was applied as an environmental sensor to selective and simultaneous electrochemical detection of Pb2+ and Cd2+ ions using differential pulse voltammetry technique. The developed sensor displayed excellent selectivity and sensitivity towards Pb2+ and Cd2+ with limit of detections of 0.008 mu M and 0.02 mu M, respectively. The fabricated PM/gC3N4/ASPE sensor exhibits superior stability, repeatability, good anti-interference, and applicability for recognition of Pb2+ and Cd2+ ions in real water samples. These results proved that developed environmental sensor is low-cost, efficient, practical platform for rapid, selective, simultaneous monitoring of HMIs in the environment.
机译：重金属离子（HMIS）污染始终是全世界严重问题。因此，监测环境水中的HMI是一个重要而充满挑战的步骤，以确保环境健康和人性化。在这项研究中，我们聚焦了一种毫不费力的单步式原位电化学聚合沉积技术，制造一种新颖，低成本，高效，纳米工程聚（三聚氰胺）/石墨 - 碳氮化物纳米纳米（PM / G-C3N4）改性丝网印刷碳电极（SPE），用于环境水域中有毒HMIS的敏感，选择性和同时电化学监测。通过热解技术使用三聚氰胺制备G-C3N4纳米材料。使用循环伏安法技术，用制备的G-C3N4和三聚氰胺单体通过循环伏安法通过预阳极氧化的SPE（ASPE）通过预阳极氧化SPE（ASPE）进行电化学。 XRD，XPS和SEM与开发电极进行了啮合。将制造的PM / G-C3N4 / aspe用作环境传感器，以使用差分脉冲伏安法技术选择性和同时进行PB2 +和CD2 +离子的电化学检测。开发的传感器显着对PB2 +和CD2 +的优异选择性和灵敏度，分别具有0.008μm和0.02μm的检测限。制造的PM / GC3N4 / ASPE传感器具有出色的稳定性，可重复性，良好的抗干扰，以及适用于实际水样中PB2 +和CD2 +离子的适用性。这些结果证明，发达的环境传感器是低成本，高效，实用的平台，用于快速，选择性，同时监测环境中的HMI。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2021年第15期|126267.1-126267.10|共10页
  • 作者

    Eswaran Muthusankar; Tsai Pei-Chien; Wu Ming-Tsang; Ponnusamy Vinoth Kumar;

  • 作者单位

    Kaohsiung Med Univ KMU Dept Med & Appl Chem 100 Shiquan 1st Rd Kaohsiung 807 Taiwan;

    Kaohsiung Med Univ KMU Dept Med & Appl Chem 100 Shiquan 1st Rd Kaohsiung 807 Taiwan;

    Kaohsiung Med Univ KMU Res Ctr Environm Med Kaohsiung 807 Taiwan|Kaohsiung Med Univ Coll Hlth Sci Dept Publ Hlth Kaohsiung Taiwan|Kaohsiung Med Univ Kaohsiung Med Univ Hosp Dept Family Med Kaohsiung Taiwan;

    Kaohsiung Med Univ KMU Dept Med & Appl Chem 100 Shiquan 1st Rd Kaohsiung 807 Taiwan|Kaohsiung Med Univ KMU Res Ctr Environm Med Kaohsiung 807 Taiwan|Kaohsiung Med Univ Hosp KMUH Dept Med Res Kaohsiung 807 Taiwan|Natl Sun Yat Sen Univ NSYSU Dept Chem Kaohsiung 804 Taiwan|Natl Kaohsiung Univ Sci & Technol NKUST Coll Hydrosphere Sci PhD Program Aquat Sci & Technol Kaohsiung 807 Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polymelamine; Graphitic-carbon nitride; Screen-printed carbon electrodes; Electrochemical detection; Heavy metals; Environmental water samples;

    机译：聚列啉;石墨 - 氮化物;丝网印刷碳电极;电化学检测;重金属;环境水样;

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