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

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-03-01 DOI:10.1117/1.jnp.18.016011

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

引用次数: 0

Abstract

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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制备用于灵敏检测 Cu2+ 的高量子产率氮硫共掺杂碳点

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。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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