Bifunctional Nitrogen and Fluorine Co‐doped Carbon Dots as Fluorescence Probe for Silicon and Mercury by pH Switching

Tabaraki, Reza; Rahmatinya, Zahra

doi:10.1007/s10895-021-02709-0

Cited by 8 publications

(3 citation statements)

References 25 publications

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“…As a new type of uorescent probe. Carbon quantum dots can be used to detect various metal ions because of their photoluminescence and high selectivity for metal ions [11][12][13][14][15]. Besides, the CDs has following advantages, low toxicity, good chemical stability [16], environment-friendly and light-resistant bleaching [17], which makes it attract wide attention by researchers.…”

Section: Introductionmentioning

confidence: 99%

Detection of Fe3+ and Hg2+ Ions by Using High Fluorescent Carbon Dots Doped With S And N as Fluorescence Probes

Liu

2022

J Fluoresc

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In this paper, carbon quantum dots (S-N-CDs) containing sulfur and nitrogen were synthesized using citric acid and thiourea. The average particle size of N-S-CDs is 8nm. The N-S-CDs surface contains various of functional groups, which has good water solubility. The uorescence quantum yield of N-S-CDs is as high as 36.8%. N-S-CDs emits strong blue uorescence in aqueous solution and has good photostability in neutral and alkaline Nacl solution. N-S-CDs has unique selectivity and high sensitivity to Fe 3+ and Hg 2+ ions, and the lowest detection limits are 1.4μM and 0.16μM, respectively. Under the interference of other metal ions, Fe 3+ and Hg 2+ ions can still effectively and stably quench the uorescence of N-S-CDs. In addition, in the detection of actual samples, N-S-CDs can effectively detect Fe 3+ and Hg 2+ ions in tap water and lake water.

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Section: Introductionmentioning

confidence: 99%

Detection of Fe3+ and Hg2+ Ions by Using High Fluorescent Carbon Dots Doped With S And N as Fluorescence Probes

Liu

2022

J Fluoresc

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“…Thus, the fluorescence properties of CDs can be efficiently improved, and it is significant to develop techniques for the carbon matrix to play crucial roles in the fluorescent nanoprobe. 43 …”

Section: Resultsmentioning

confidence: 99%

Green synthesis of carbon dots from fish scales for selective turn off–on detection of glutathione

Zhang,

Lei,

Dong

et al. 2024

RSC Adv.

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“…not only have the characteristic of enhancing fluorescence, but also can effectively promote the specificity of carbon dots. However, although the selectivity of some doped carbon dots has become better, the detection limit of Hg 2+ has become higher [21–23] . In addition, the doped carbon dots prepared by Lu [24] achieved rapid visual detection, but the detection limit of Hg 2+ was high, which limited practical applications.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficiency Fluorescent Probe for Mercury Ions Based on (N, S)‐Co‐Doped Carbon Dots

et al. 2021

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This work demonstrates the preparation of (N, S)‐co‐doped fluorescent carbon dots (N, S‐CDs) for mercury ions (Hg2+) detection. This new fluorescent probe based on N, S‐CDs using dopamine hydrochloride (DA) and L‐cysteine (L‐Cys) as raw materials was reported for the first time. The resulting N, S‐CDs exhibited excellent specificity and selectivity towards Hg2+ and could distinguish them from 26 anions and cations, including Cd2+, Pb2+, and Cr2O72−. The sensor demonstrated high‐intensity fluorescence quenching at ∼457 nm under the Hg2+ presence and the ability to detect Hg2+ in the 0.05‐0.5 μM range with a 9.37 nM detection limit. The innovations of this work are to offer a method for rapid monitoring of Hg2+ in the environment, besides inventing a new fluorescent probe based on N, S‐CDs.

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Bifunctional Nitrogen and Fluorine Co‐doped Carbon Dots as Fluorescence Probe for Silicon and Mercury by pH Switching

Cited by 8 publications

References 25 publications

Detection of Fe3+ and Hg2+ Ions by Using High Fluorescent Carbon Dots Doped With S And N as Fluorescence Probes

Detection of Fe3+ and Hg2+ Ions by Using High Fluorescent Carbon Dots Doped With S And N as Fluorescence Probes

Green synthesis of carbon dots from fish scales for selective turn off–on detection of glutathione

Highly Efficiency Fluorescent Probe for Mercury Ions Based on (N, S)‐Co‐Doped Carbon Dots

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