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<p>Carbon dots (CDs) have drawn significant attention for their versatile applications across multiple fields, including heavy metal detection, bio-imaging, and light-emitting diodes. Herein, blue-green CDs were synthesized via a hydrothermal method. For the first time, CDs were utilized as an efficient decontaminant for the rapid removal of potassium permanganate (KMnO<sub>4</sub>), achieving a remarkable removal capacity of 470&#xa0;mg/g. The interaction mechanism of CDs and KMnO<sub>4</sub> is elucidated via oxidation and hydrogen bonding. Furthermore, the CDs exhibited excellent selectivity for tetracycline detection in rabbit serum, with a linear detection range of 0–50 ppm and a detection limit of 0.24 ppm. These results demonstrate the immense potential of CDs as multifunctional materials for pollutant detection and remediation in water treatment applications.</p> Graphical Abstract <p></p>

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Multiple functions of carbon dots in rapid removal of potassium permanganate and selective detection of tetracycline

  • 期刊论文

  • 发表日期：

    2025年5月16日

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  • Nguyen Minh Hoang,
  • Nguyen Thi Bich Ngoc,
  • Vu Tan Phat,
  • Nguyen Ngoc Trung,
  • Hoang Nguyen Minh Chau,
  • Tran Thai Nam,
  • Phan Duy Anh,
  • To Thi Kim Tuyen,
  • Nguyen Thi Xuan,
  • Nguyen Thuy Duong,
  • Mai Thi Mo,
  • Vu Thi Trang,
  • Phan Thi Lan Huong,
  • Dao Van Duong,
  • Le Tuan Tu

摘要

Carbon dots (CDs) have drawn significant attention for their versatile applications across multiple fields, including heavy metal detection, bio-imaging, and light-emitting diodes. Herein, blue-green CDs were synthesized via a hydrothermal method. For the first time, CDs were utilized as an efficient decontaminant for the rapid removal of potassium permanganate (KMnO4), achieving a remarkable removal capacity of 470 mg/g. The interaction mechanism of CDs and KMnO4 is elucidated via oxidation and hydrogen bonding. Furthermore, the CDs exhibited excellent selectivity for tetracycline detection in rabbit serum, with a linear detection range of 0–50 ppm and a detection limit of 0.24 ppm. These results demonstrate the immense potential of CDs as multifunctional materials for pollutant detection and remediation in water treatment applications.

Graphical Abstract