标题 |
Hydrothermal synthesis of N,S-doped carbon quantum dots as a dual mode sensor for azo dye tartrazine and fluorescent ink applications
相关领域
柠檬黄
荧光
量子产额
检出限
电化学
材料科学
水热合成
化学
猝灭(荧光)
分析化学(期刊)
核化学
光化学
热液循环
化学工程
色谱法
电极
物理化学
光学
物理
工程类
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网址 | |
DOI |
10.1016/j.jphotochem.2022.11438
doi
提醒:求助人提供的doi与AI识别不一致
10.1016/j.jphotochem.2022.114386
Doi
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其它 | In this paper, blue-emitting N,S-doped carbon quantum dots (N,S-CQDs) were fabricated via a hydrothermal process from a mixture of o-phenylenediamine and methionine. They exhibit photoluminous (PL) emission at 440 nm, with a quantum yield (QY) of 20 %. Various physio-chemical approaches were employed to explore the structural, morphological, optical and electrochemical behaviour of the N,S-CQDs. The functional groups such as carboxyl (–COOH), hydroxyl (–OH), amino (–NH2) and thiol (-SH) on the N,S-CQDs surface allows it to have good QY, and excellent water solubility. The proposed sensor could detect tartrazine (TT), a common synthetic food dye using fluorescence and electrochemical approaches. The fluorescence method achieved a limit of detection (LOD) of 80 nM within the linear range of 0–10 μM. |
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