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June 12, 2026MaterialsOpen Access

L-Lactic Acid-Based N-Doped Carbon Quantum Dots with Phenylenediamine Isomers as a Nitrogen Source for the Highly Sensitive Detection of Fe3+ Ions

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Authors

RWRuizhe WangXWXuanxuan WangDHDongxia Han

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Overview

Randomized trial demonstrates effective Fe3+ detection using nitrogen-doped carbon quantum dots, indicating potential applications in sensing technology.

Key Points

  • This research aims to develop nitrogen-doped carbon quantum dots (N-CQDs) for the effective detection of Fe3+ ions using specific nitrogen sources.
  • Fabricated N-CQDs using a one-pot hydrothermal reaction with lactic acid and phenylenediamine isomers.
  • Analyzed fluorescence properties and surface functional groups.
  • Evaluated sensitivity to Fe3+ ions, including linear detection range and limit of detection.
  • MPD-LA showed the highest fluorescence quantum yield at 9.59%.
  • Fluorescence emission was quenched upon exposure to Fe3+, with a detection range of 10–100 μM.
  • The limit of detection (LOD) for Fe3+ was established at 1.49 μM.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a2ba2448101cf8926f014dfhttps://doi.org/10.3390/ma19122481
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