Journal
ANALYTICAL METHODS
Volume 14, Issue 42, Pages 4230-4235Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ay01458k
Keywords
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Funding
- Natural Science Foundation of Chongqing [cstc2021jcyj-msxmX0027]
- Talent and Innovation Project of Beibei District in Chongqing [2022-11]
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In this study, we successfully developed carbon dots that emitted orange-fluorescence using the hydrothermal method. The carbon dots had multiple functional groups, allowing them to interact with potential targets. The introduction of silver ions quenched the fluorescence of the carbon dots, while the addition of glyphosine gradually recovered the fluorescence. The prepared carbon dots showed potential for detecting Ag+ and glyphosine.
Here we successfully developed a kind of carbon dot (CD), which emitted obvious orange-fluorescence, based on the hydrothermal method while polyacrylic acid was employed as the carbon source. The developed CDs have been equipped with multiple functional groups such as C=O, -OH and -COOH, facilitating the possibility of interacting with potential targets. Meaningfully, the introduction of silver ions induced the fluorescence quenching of the as-prepared CDs. Meanwhile, the proposed CDs achieved detection of Ag+ with a linear range of 2.0 x 10(-6) to 1.0 x 10(-3) M at a detection limit of 1.8 x 10(-6) M. Moreover, the further addition of glyphosine gradually recovered the fluorescence accompanied by the concentration of glyphosine varying from 7 x 10(-6) to 10(-2) M with a detection limit of 6.2 x 10(-6) M. Thereby, the CDs prepared here show potential for broadening the avenues for detecting Ag+ and glyphosine.
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