{"title":"Boron, nitrogen, and sulfur co-doped carbon dots as a fluorescence probe for label-free analysis of Hg2+","authors":"Yu Ding, Yanyan Chen, Chaozhan Wang","doi":"10.1002/jccs.202400089","DOIUrl":null,"url":null,"abstract":"<p>Hg<sup>2+</sup> is one of the most toxic heavy metals, posing a serious threat to the human body and the environmental ecosystem. In order to detect Hg<sup>2+</sup> rapidly, accurately, and sensitively, a kind of boron, nitrogen, and sulfur co-doped carbon dots (B,N,S-CDs) were synthesized by a simple, economical, and direct hydrothermal method. The average size of the prepared B,N,S-CDs is 2.7 ± 0.7 nm, and the high photoluminescence quantum yield is 67.6%. Furthermore, due to the efficient quenching effect of Hg<sup>2+</sup>, such B,N,S-CDs are considered to serve as an efficient fluorescence sensing platform for label-free and sensitive detection of Hg<sup>2+</sup> with a detection limit of 72 nM. The selectivity experiments reveal that the B,N,S-CDs are selective and specific for Hg<sup>2+</sup> even in the presence of other interfering substances. Most importantly, the Hg<sup>2+</sup> sensing platform based on B,N,S-CDs can be successfully applied to the determination of Hg<sup>2+</sup> in tap water and real lake water samples. This stable and inexpensive carbon material exhibits excellent sensitivity and selectivity, potentially suitable for Hg<sup>2+</sup> monitoring in environmental applications.</p>","PeriodicalId":17262,"journal":{"name":"Journal of The Chinese Chemical Society","volume":"71 9","pages":"1092-1102"},"PeriodicalIF":1.6000,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Chinese Chemical Society","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jccs.202400089","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Hg2+ is one of the most toxic heavy metals, posing a serious threat to the human body and the environmental ecosystem. In order to detect Hg2+ rapidly, accurately, and sensitively, a kind of boron, nitrogen, and sulfur co-doped carbon dots (B,N,S-CDs) were synthesized by a simple, economical, and direct hydrothermal method. The average size of the prepared B,N,S-CDs is 2.7 ± 0.7 nm, and the high photoluminescence quantum yield is 67.6%. Furthermore, due to the efficient quenching effect of Hg2+, such B,N,S-CDs are considered to serve as an efficient fluorescence sensing platform for label-free and sensitive detection of Hg2+ with a detection limit of 72 nM. The selectivity experiments reveal that the B,N,S-CDs are selective and specific for Hg2+ even in the presence of other interfering substances. Most importantly, the Hg2+ sensing platform based on B,N,S-CDs can be successfully applied to the determination of Hg2+ in tap water and real lake water samples. This stable and inexpensive carbon material exhibits excellent sensitivity and selectivity, potentially suitable for Hg2+ monitoring in environmental applications.
期刊介绍:
The Journal of the Chinese Chemical Society was founded by The Chemical Society Located in Taipei in 1954, and is the oldest general chemistry journal in Taiwan. It is strictly peer-reviewed and welcomes review articles, full papers, notes and communications written in English. The scope of the Journal of the Chinese Chemical Society covers all major areas of chemistry: organic chemistry, inorganic chemistry, analytical chemistry, biochemistry, physical chemistry, and materials science.