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首页> 外文期刊>RSC Advances >One-step hydrothermal synthesis and optical properties of self-quenching-resistant carbon dots towards fluorescent ink and as nanosensors for Fe3+ detection
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One-step hydrothermal synthesis and optical properties of self-quenching-resistant carbon dots towards fluorescent ink and as nanosensors for Fe3+ detection

机译：用于Fe3 +检测的荧光油墨的自猝灭碳点的一步水热合成和光学性能，作为Fe3 +检测的纳米调传料

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摘要

In our work, blue photoluminescent N-doped carbon dots (CDs) were developed via a green and simple hydrothermal method with citric acid and polyvinyl pyrrolidone (PVP K-30) as the carbon source and the nitrogen source, respectively. The as-prepared CDs have a high fluorescent quantum yield of 30.21% and considerable luminescence stability. The fluorescence intensity of the CDs was found to be effective quenched when adding Fe3+ ions to the CDs solution. The quenching phenomenon can be used to detect Fe3+ ions within a linear range of 0-300 mM with a detection limit of 45.5 nmol L-1, which suggested its potential application in the detection of Fe3+ ions. At the same time, we also noted the excellent self-quenching-resistant property of the as-prepared CDs in the solid state, and bright blue fluorescence was observed under UV excitation. What's more, the as-prepared CDs can also be used as fluorescent ink and were presented under UV excitation.
机译：在我们的工作中，通过与柠檬酸和聚乙烯吡咯烷酮（PVP K-30）作为碳源和氮源的绿色和简单的水热法开发蓝色光致发光N掺杂的碳点（CD）。 制备的CD具有30.21％和相当大的发光稳定性的高荧光量子产率。 发现Cds的荧光强度在向CDS溶液中加入Fe3 +离子时有效淬火。 淬火现象可用于检测0-300mm的线性范围内的Fe3 +离子，检测限为45.5nmol L-1，这表明其在检测Fe3 +离子中的潜在应用。 同时，我们还注意到在固态中的AS制备的Cds的优异的自猝灭性，并且在紫外线激发下观察到亮的蓝色荧光。 更重要的是，AS制备的CD也可以用作荧光墨水，并在UV激励下呈现。

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  • 来源
    《RSC Advances》 |2019年第15期|共10页
  • 作者

    Xu Dandan; Lei Fang; Chen Haohong; Yin Luqiao; Shi Ying; Xie Jianjun;

  • 作者单位

    Shanghai Univ Sch Mat Sci &

    Engn 99 Shang Da Rd Shanghai 200444 Peoples R China;

    Shanghai Univ Sch Mat Sci &

    Engn 99 Shang Da Rd Shanghai 200444 Peoples R China;

    Chinese Acad Sci Key Lab Transparent Optofunct Inorgan Mat Shanghai Inst Ceram Dingxi Rd 1295 Shanghai 200050 Peoples R China;

    Shanghai Univ Key Lab Adv Display &

    Syst Applicat 149 Yanchang Rd Shanghai 200072 Peoples R China;

    Shanghai Univ Sch Mat Sci &

    Engn 99 Shang Da Rd Shanghai 200444 Peoples R China;

    Shanghai Univ Sch Mat Sci &

    Engn 99 Shang Da Rd Shanghai 200444 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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