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Dual Emission Carbon Dots for Simultaneous Detections of Pb2+ and Fe3+ Ions in Water Via Distinct Sensing Mechanisms

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Abstract

Herein, dual-emission carbon dots (DE-CDs) were synthesized using a one-pot hydrothermal method. DE-CDs exhibited two well-separated peaks at 433 and 513 nm under ultraviolet excitation. The prepared DE-CDs offer selective detection of Fe3+ ions via inner filter effect (IFE) and Pb2+ ions via aggregation-induced enhancement (AIE). The obtained DE-CDs showed a good affinity for both Fe3+ and Pb2+ ions in the presence of various interfering ions. The limits of detection were 0.797 ppm and 4.739 ppm for Pb2+ and Fe3+, respectively. The finding reveals the huge potential of DE-CDs for the selective detection of multiple targets in one solution.

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All data generated or analyzed during this study are included in this published article.

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Funding

This work was financially supported by the Asia Research Center (grant number CA.21.3 A) and Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 103.02-2021.106. This work was also funded by Phenikaa Innovation Foundation grant (ĐMST.2022.02) and Ministry of Science and Technology grant (B2022-DQN-04).

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Authors and Affiliations

  1. Faculty of Physics, VNU University of Science, 334 Nguyen Trai, 100000, Hanoi, Vietnam

    Hoang Nguyen Minh, Ngoc Nguyen Thi Bich, Duy Dao Quang & Tu Le Tuan

  2. Department of Physics & Biophysics, Vietnam Military Medical University, 160 Phung Hung, 100000, Hanoi, Vietnam

    Hoang Nguyen Minh & Huong Phan Thi Lan

  3. Faculty of Electronics and Telecommunications, Academy of Cryptography Techniques, 1000, Hanoi, Vietnam

    Huyen Phan Thi Thanh

  4. Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, 100000, Hanoi, Vietnam

    Dao Van-Duong

Authors
  1. Hoang Nguyen Minh
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  2. Ngoc Nguyen Thi Bich
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  3. Huong Phan Thi Lan
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  4. Huyen Phan Thi Thanh
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  5. Duy Dao Quang
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  6. Dao Van-Duong
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  7. Tu Le Tuan
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Contributions

Conceptualization: Le Tuan Tu, Van-Duong Dao; Data curation: Nguyen Minh Hoang, Nguyen Thi Bich Ngoc; Formal analysis: Nguyen Minh Hoang, Dao Quang Duy, Phan Thi Lan Huong; Funding acquisition Investigation: Van-Duong Dao, Le Tuan Tu; Methodology: Nguyen Thi Bich Ngoc, Phan Thi Thanh Huyen, Dao Quang Duy; Writing –original draft: Nguyen Minh Hoang, Nguyen Thi Bich Ngoc; Writing – review & editing: Le Tuan Tu, Van-Duong Dao.

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Correspondence to Dao Van-Duong or Tu Le Tuan.

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Hoang, N.M., Ngoc, N.T.B., Huong, P.T.L. et al. Dual Emission Carbon Dots for Simultaneous Detections of Pb2+ and Fe3+ Ions in Water Via Distinct Sensing Mechanisms. J Fluoresc 33, 1359–1366 (2023). https://doi.org/10.1007/s10895-022-03139-2

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  • DOI: https://doi.org/10.1007/s10895-022-03139-2

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