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首页> 外文期刊>RSC Advances >Basophilic green fluorescent carbon nanoparticles derived from benzoxazine for the detection of Cr(VI) in a strongly alkaline environment
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Basophilic green fluorescent carbon nanoparticles derived from benzoxazine for the detection of Cr(VI) in a strongly alkaline environment

机译：嗜碱性的绿色荧光碳纳米粒子衍生自苯并恶嗪以检测强烈碱性环境中的Cr（VI）

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摘要

Fluorescent probes for heavy or transition metal ions in extreme environments are crucially important for practical use. In this work, basophilic green fluorescent carbon nanoparticles (G-CNPs) were synthesized by one-pot hydrothermal treatment of benzoxazine in NaOH aqueous solution. These G-CNPs showed favorable dispersibility in strongly alkaline conditions due to the abundant functional groups on their surface. Based on their good photoluminescence properties and excellent stability, the G-CNPs could be used to detect Cr(VI) in a strongly alkaline environment (pH = 14) through a fluorescence quenching effect. This detection process was achieved selectively among 17 anions within 30 seconds and the limitation was 0.58 mu M (S/N = 3). It was revealed that the fluorescence turn-off process was caused by the inner filter effect (IFE) of Cr(VI). This study developed efficient fluorescence sensors based on fluorescent carbon nanoparticles, which could be used in strongly alkaline environments.
机译：在极端环境中重型或过渡金属离子的荧光探针对于实际使用至关重要。在这项工作中，通过在NaOH水溶液中的单罐水热处理合成嗜碱性的绿色荧光碳纳米粒子（G-CNP）。由于其表面上的丰富官能团，这些G-CNPS在强碱性条件下显示出良好的分散性。基于其良好的光致发光性能和优异的稳定性，G-CNP可用于通过荧光猝灭效应检测强碱环境（pH = 14）中的Cr（VI）。在30秒内选择性地在17个阴离子中选择性地实现该检测过程，并且限制为0.58μm（s / n = 3）。揭示荧光关断过程是由Cr（VI）的内滤光效果（IFE）引起的。该研究基于荧光碳纳米颗粒的高效荧光传感器，可用于强碱性环境。

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  • 来源
    《RSC Advances》 |2018年第14期|共6页
  • 作者

    Fang Bin; Wang Ping; Zhu Yujia; Wang Caoyu; Zhang Geng; Zheng Xinsheng; Ding Cong; Gu Jiangjiang; Cao Feifei;

  • 作者单位

    Huazhong Agr Univ Coll Sci Wuhan 430070 Hubei Peoples R China;

    Huazhong Agr Univ Coll Sci Wuhan 430070 Hubei Peoples R China;

    Sun Yat Sen Univ Canc Ctr Collaborat Innovat Ctr Canc Med State Key Lab Oncol South China Dept Radiat Oncol Guangzhou 510060 Guangdong Peoples R China;

    Huazhong Agr Univ Coll Sci Wuhan 430070 Hubei Peoples R China;

    Huazhong Agr Univ Coll Sci Wuhan 430070 Hubei Peoples R China;

    Huazhong Agr Univ Coll Sci Wuhan 430070 Hubei Peoples R China;

    Huazhong Agr Univ Coll Sci Wuhan 430070 Hubei Peoples R China;

    Huazhong Agr Univ Coll Sci Wuhan 430070 Hubei Peoples R China;

    Huazhong Agr Univ Coll Sci Wuhan 430070 Hubei Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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