{"title":"Tailoring plastic bag derived carbon dots by sulfur-nitrogen passivation for highly selective Fe (III) ion sensing","authors":"Ratih Lestari , Yuichi Kamiya , Tutik Dwi Wahyuningsih , Indriana Kartini","doi":"10.1016/j.inoche.2025.114187","DOIUrl":null,"url":null,"abstract":"<div><div>Plastic bags were used to produce carbon dots (CDs), which can contribute to solving environmental problems. The enhanced quantum yield (QY) was achieved in this study through the passivation of CDs with sulfur (S) and nitrogen (N). Pyrolysis and hydrothermal methods were used to produce S-N co-doped CDs (S-N-CDs) from plastic bags. Notably, S-N-CDs significantly enhanced the QY to 16.20 %. The resulting S-N-CDs retained remarkable fluorescence performance over high ionic strengths and UV light irradiation. The incorporation of functional groups containing oxygen, sulfur, and nitrogen in S-N-CDs created recognition sites that enable specific and highly selective sensing of Fe<sup>3+</sup> ions, with a quenching ability of up to 62 %. Moreover, these S-N-CDs displayed a wide linearity in the range of 110.64–600 µM for Fe<sup>3+</sup> ion detection. The sensing system exhibited exceptional performance in detecting Fe<sup>3+</sup> in actual water samples with %Recovery of 90–100 % and %RSD below 0.39 %, The findings highlight the prospect of S-N-CDs from plastic bags as promising sensors for future environmental analysis, addressing the urgent need for effective and sustainable solutions.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"175 ","pages":"Article 114187"},"PeriodicalIF":4.4000,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Chemistry Communications","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1387700325003016","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Tailoring plastic bag derived carbon dots by sulfur-nitrogen passivation for highly selective Fe (III) ion sensing
Plastic bags were used to produce carbon dots (CDs), which can contribute to solving environmental problems. The enhanced quantum yield (QY) was achieved in this study through the passivation of CDs with sulfur (S) and nitrogen (N). Pyrolysis and hydrothermal methods were used to produce S-N co-doped CDs (S-N-CDs) from plastic bags. Notably, S-N-CDs significantly enhanced the QY to 16.20 %. The resulting S-N-CDs retained remarkable fluorescence performance over high ionic strengths and UV light irradiation. The incorporation of functional groups containing oxygen, sulfur, and nitrogen in S-N-CDs created recognition sites that enable specific and highly selective sensing of Fe3+ ions, with a quenching ability of up to 62 %. Moreover, these S-N-CDs displayed a wide linearity in the range of 110.64–600 µM for Fe3+ ion detection. The sensing system exhibited exceptional performance in detecting Fe3+ in actual water samples with %Recovery of 90–100 % and %RSD below 0.39 %, The findings highlight the prospect of S-N-CDs from plastic bags as promising sensors for future environmental analysis, addressing the urgent need for effective and sustainable solutions.
期刊介绍:
Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.