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Surface coating of magnetite nanoparticles with fluorescence derivative for the detection of mercury in water environments

机译:具有荧光衍生物的磁铁矿纳米颗粒表面涂层,用于检测水环境中的汞

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摘要

In this study, we report synthesis of new fluorescent compound integrated with Fe3O4 nanoparticles for the detection of mercury ion (Hg2+) in aqueous environment. Fluorescent compound synthesized by reacting dansyl chloride with isonipecotic acid in one simple step reaction. The synthesized compound, dansyl-isonipecotic acid (DIA) was coated on Fe3O4 nanoparticles. Fe3O4-DIA nanoparticles have average size of 20 nm and pore size 0.3 nm as confirmed from Transmission Electron Microscope (TEM). Fluorescence study shows the quenching in intensity after addition of Hg2+ ion in Fe3O4 -DIA nanoparticles solution, which is due to energy transfer from excited state of ligand to low-lying empty d-orbital of Hg2+. The quenching effect was also confirmed from confocal microscope images of Fe3O4-DIA nanoparticles. (C) 2020 Elsevier B.V. All rights reserved.
机译:在这项研究中,我们报告了与Fe3O4纳米颗粒集成的新型荧光化合物的合成,用于检测水性环境中的汞离子(Hg2 +)。通过单步反应使丹磺酰氯与异二十二烯酸反应合成的荧光化合物。将合成的化合物丹酰异癸酸(DIA)涂覆在Fe3O4纳米颗粒上。 Fe3O4-DIA纳米粒子的平均尺寸为20 nm,孔径为0.3 nm,这是通过透射电子显微镜(TEM)确认的。荧光研究表明,在Fe3O4 -DIA纳米颗粒溶液中加入Hg2 +离子后,强度发生猝灭,这是由于能量从配体的激发态转移到Hg2 +的低位空d轨道。 Fe3O4-DIA纳米粒子的共聚焦显微镜图像也证实了淬灭作用。 (C)2020 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Materials Letters》 |2020年第may15期|127548.1-127548.4|共4页
  • 作者

  • 作者单位

    Selcuk Univ Dept Chem TR-42075 Konya Turkey|Selcuk Univ Dept Adv Mat & Nanotechnol TR-42031 Konya Turkey;

    Selcuk Univ Dept Chem TR-42075 Konya Turkey|Govt Coll Univ Hyderabad Dept Chem Hyderabad 71000 Pakistan;

    Selcuk Univ Dept Chem TR-42075 Konya Turkey;

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

    Fluorescence; Toxic metal ion; Nanoparticles; Dansyl derivative;

    机译:荧光;有毒金属离子纳米颗粒;丹磺酰基衍生物;

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