制备用于灵敏检测 Cu2+ 的高量子产率氮硫共掺杂碳点

IF 1.1 4区物理与天体物理 Q4 NANOSCIENCE & NANOTECHNOLOGY

Journal of Nanophotonics Pub Date : 2024-03-01 DOI:10.1117/1.jnp.18.016011

YingTe Wang, SiRong Cheng, RongRong Wu, YuanYuan Zhang, BoHan Wang

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引用次数: 0

摘要

以对苯二胺和硫代氨基甲酮为前驱体，通过水热法合成了氮和硫共同掺杂的绿色荧光碳点（G-CDs），其量子产率（QY）为 28.26%。合成的 G-CDs 在荧光淬灭（λex=390 nm，λem=535 nm）检测铜离子（Cu2+）时具有良好的灵敏度和抗干扰能力，线性范围为 20 至 200 μM，检测限为 4.8 μM。该分析方法已被用于检测当地湖泊中的 Cu2+，具有良好的准确性和回收率。

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Preparation of high quantum yield nitrogen and sulfur co-doped carbon dots for sensitive detection of Cu2+

Nitrogen and sulfur co-doped green fluorescent carbon dots (G-CDs) with quantum yield (QY) of 28.26% were synthesized by hydrothermal method with p-phenylenediamine and thiosemicarbazone as precursors. The synthesized G-CDs exhibit good sensitivity and anti-interference ability for detecting copper ion (Cu2+) by fluorescence quenching (λex=390 nm, λem=535 nm) with a linear range of 20 to 200 μM and the limit of detection of 4.8 μM. This analytical method has been applied to detect Cu2+ of the local lake with good accuracy and recovery.

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来源期刊

Journal of Nanophotonics 工程技术-光学

CiteScore

2.60

自引率

6.70%

发文量

审稿时长

3 months

期刊介绍： The Journal of Nanophotonics publishes peer-reviewed papers focusing on the fabrication and application of nanostructures that facilitate the generation, propagation, manipulation, and detection of light from the infrared to the ultraviolet regimes.