Boron and nitrogen co-doped carbon dots as the dual functional fluorescent probe for Fe3+ and pH detection
Carbon dots doped with boron and nitrogen atoms (B, N-CDs) were designed and prepared by hydrothermal strategy using citric acid, urea and borax as raw materials. The structure and optical properties of B, N-CDs were characterized by various characterization technologies. The results showed that the...
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| Aineistotyyppi: | Artikkeli |
| Kieli: | English |
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Elsevier
2024-01-01
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| Sarja: | Journal of Saudi Chemical Society |
| Aiheet: | |
| Linkit: | http://www.sciencedirect.com/science/article/pii/S1319610323001795 |
| _version_ | 1827378833521639424 |
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| author | Shenna Chen Yunping Hao Sha Liu Yanxu Liu Ziyan Zhang Mei Fang Lina Geng |
| author_facet | Shenna Chen Yunping Hao Sha Liu Yanxu Liu Ziyan Zhang Mei Fang Lina Geng |
| author_sort | Shenna Chen |
| collection | DOAJ |
| description | Carbon dots doped with boron and nitrogen atoms (B, N-CDs) were designed and prepared by hydrothermal strategy using citric acid, urea and borax as raw materials. The structure and optical properties of B, N-CDs were characterized by various characterization technologies. The results showed that the B, N-CDs exhibited good mono-dispersion, excellent fluorescence stability, and high fluorescence intensity (quantum yield up to 32 %). A dual-functional Fe3+ and pH detection platform based on B, N-CDs was constructed. The Fe3+ sensing method based on B, N-CDs fluorescence quenching showed an excellent linear relationship between 0.044–70 μM (R2 = 0.994), with a detection limit as low as 0.044 μM. Then, this detection method was successfully applied to the high-accuracy detection of Fe3+ in water samples and iron supplement tablets. The study of the quenching mechanism showed that the fluorescence of B, N-CDs was quenched by Fe3+ in two ways: static quenching and dynamic quenching. Moreover, B, N-CDs can also be used as a pH fluorescence sensor in the ranges of pH 2.0–4.8 and 5.2–7.6. The developed sensing system based on B, N-CDs has high selectivity and sensitivity for the detection of Fe3+, and a wide detection range for pH. |
| first_indexed | 2024-03-08T13:02:35Z |
| format | Article |
| id | doaj.art-c9b890a5cfc740e8a66895a089177e02 |
| institution | Directory Open Access Journal |
| issn | 1319-6103 |
| language | English |
| last_indexed | 2024-03-08T13:02:35Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Saudi Chemical Society |
| spelling | doaj.art-c9b890a5cfc740e8a66895a089177e022024-01-19T04:51:45ZengElsevierJournal of Saudi Chemical Society1319-61032024-01-01281101775Boron and nitrogen co-doped carbon dots as the dual functional fluorescent probe for Fe3+ and pH detectionShenna Chen0Yunping Hao1Sha Liu2Yanxu Liu3Ziyan Zhang4Mei Fang5Lina Geng6College of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang 050024, ChinaCollege of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang 050024, ChinaCollege of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang 050024, ChinaCollege of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang 050024, ChinaCollege of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang 050024, ChinaCollege of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang 050024, ChinaCorresponding author.; College of Chemistry and Material Science, Hebei Key Laboratory of Organic Functional Molecules, Hebei Normal University, Shijiazhuang 050024, ChinaCarbon dots doped with boron and nitrogen atoms (B, N-CDs) were designed and prepared by hydrothermal strategy using citric acid, urea and borax as raw materials. The structure and optical properties of B, N-CDs were characterized by various characterization technologies. The results showed that the B, N-CDs exhibited good mono-dispersion, excellent fluorescence stability, and high fluorescence intensity (quantum yield up to 32 %). A dual-functional Fe3+ and pH detection platform based on B, N-CDs was constructed. The Fe3+ sensing method based on B, N-CDs fluorescence quenching showed an excellent linear relationship between 0.044–70 μM (R2 = 0.994), with a detection limit as low as 0.044 μM. Then, this detection method was successfully applied to the high-accuracy detection of Fe3+ in water samples and iron supplement tablets. The study of the quenching mechanism showed that the fluorescence of B, N-CDs was quenched by Fe3+ in two ways: static quenching and dynamic quenching. Moreover, B, N-CDs can also be used as a pH fluorescence sensor in the ranges of pH 2.0–4.8 and 5.2–7.6. The developed sensing system based on B, N-CDs has high selectivity and sensitivity for the detection of Fe3+, and a wide detection range for pH.http://www.sciencedirect.com/science/article/pii/S1319610323001795B, N-CDsFe3+pHFluorescent probe |
| spellingShingle | Shenna Chen Yunping Hao Sha Liu Yanxu Liu Ziyan Zhang Mei Fang Lina Geng Boron and nitrogen co-doped carbon dots as the dual functional fluorescent probe for Fe3+ and pH detection Journal of Saudi Chemical Society B, N-CDs Fe3+ pH Fluorescent probe |
| title | Boron and nitrogen co-doped carbon dots as the dual functional fluorescent probe for Fe3+ and pH detection |
| title_full | Boron and nitrogen co-doped carbon dots as the dual functional fluorescent probe for Fe3+ and pH detection |
| title_fullStr | Boron and nitrogen co-doped carbon dots as the dual functional fluorescent probe for Fe3+ and pH detection |
| title_full_unstemmed | Boron and nitrogen co-doped carbon dots as the dual functional fluorescent probe for Fe3+ and pH detection |
| title_short | Boron and nitrogen co-doped carbon dots as the dual functional fluorescent probe for Fe3+ and pH detection |
| title_sort | boron and nitrogen co doped carbon dots as the dual functional fluorescent probe for fe3 and ph detection |
| topic | B, N-CDs Fe3+ pH Fluorescent probe |
| url | http://www.sciencedirect.com/science/article/pii/S1319610323001795 |
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