{"title":"用梅花叶合成的光致发光碳量子点作为金属离子传感器","authors":"Shruti Sharma, Papia Chowdhury","doi":"10.1007/s12034-024-03273-6","DOIUrl":null,"url":null,"abstract":"<div><p>The present work focuses on synthesis, characterization and applicability of green carbon quantum dots (CQDs) from leaves of <i>Plumeria obtusa</i> plant as a fluorescent metal ion sensor. These precursors undergo hydrothermal treatment, which produces fluorescent CQDs. The morphological and optical studies of synthesized CQDs have been studied by FESEM image analysis, XRD, UV–Vis absorption, photoluminescence and FTIR spectroscopy. The average size of prepared green CQDs estimated was ~ 4 nm, which matches with the result from FESEM image analysis. Based on absorption data, the direct band gap of 3.4 eV has been determined for the prepared CQDs. ‘Turn off’ fluorescence is observed in the presence of Fe<sup>3+</sup> ions. High sensitivity and low detection limit of our synthesized CQDs for metal ions sensing have established their prominent candidature to be used as good efficient biocompatible fluorescent sensor.</p></div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"47 3","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Photoluminescent carbon quantum dots synthesized from Plumeria leaves as metal ion sensor\",\"authors\":\"Shruti Sharma, Papia Chowdhury\",\"doi\":\"10.1007/s12034-024-03273-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The present work focuses on synthesis, characterization and applicability of green carbon quantum dots (CQDs) from leaves of <i>Plumeria obtusa</i> plant as a fluorescent metal ion sensor. These precursors undergo hydrothermal treatment, which produces fluorescent CQDs. The morphological and optical studies of synthesized CQDs have been studied by FESEM image analysis, XRD, UV–Vis absorption, photoluminescence and FTIR spectroscopy. The average size of prepared green CQDs estimated was ~ 4 nm, which matches with the result from FESEM image analysis. Based on absorption data, the direct band gap of 3.4 eV has been determined for the prepared CQDs. ‘Turn off’ fluorescence is observed in the presence of Fe<sup>3+</sup> ions. High sensitivity and low detection limit of our synthesized CQDs for metal ions sensing have established their prominent candidature to be used as good efficient biocompatible fluorescent sensor.</p></div>\",\"PeriodicalId\":502,\"journal\":{\"name\":\"Bulletin of Materials Science\",\"volume\":\"47 3\",\"pages\":\"\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2024-07-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of Materials Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12034-024-03273-6\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12034-024-03273-6","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Photoluminescent carbon quantum dots synthesized from Plumeria leaves as metal ion sensor
The present work focuses on synthesis, characterization and applicability of green carbon quantum dots (CQDs) from leaves of Plumeria obtusa plant as a fluorescent metal ion sensor. These precursors undergo hydrothermal treatment, which produces fluorescent CQDs. The morphological and optical studies of synthesized CQDs have been studied by FESEM image analysis, XRD, UV–Vis absorption, photoluminescence and FTIR spectroscopy. The average size of prepared green CQDs estimated was ~ 4 nm, which matches with the result from FESEM image analysis. Based on absorption data, the direct band gap of 3.4 eV has been determined for the prepared CQDs. ‘Turn off’ fluorescence is observed in the presence of Fe3+ ions. High sensitivity and low detection limit of our synthesized CQDs for metal ions sensing have established their prominent candidature to be used as good efficient biocompatible fluorescent sensor.
期刊介绍：
The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.
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