Nanomaterials (Aug 2022)

Gram-Scale Synthesis of Graphitic Carbon Nitride Quantum Dots with Ultraviolet Photoluminescence for Fe<sup>3+</sup> Ion Detection

  • Xuemei Lu,
  • Haijun Qin,
  • Jiuzhang Cai,
  • Yuhang Cui,
  • Lixin Liao,
  • Fengzhen Lv,
  • Changming Zhu,
  • Liguang Wang,
  • Jun Liu,
  • Lizhen Long,
  • Wenjie Kong,
  • Fuchi Liu

DOI
https://doi.org/10.3390/nano12162804
Journal volume & issue
Vol. 12, no. 16
p. 2804

Abstract

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A method for gram-scale synthesis of graphitic carbon nitride quantum dots (g-C3N4QDs) was developed. The weight of the g-C3N4QDs was up to 1.32 g in each run with a yield of 66 wt%, and the purity was 99.96 wt%. The results showed that g-C3N4QDs exhibit a stable and strong ultraviolet photoluminescence at a wavelength of 365 nm. More interestingly, the g-C3N4QDs can be used as a high-efficiency, sensitive, and selective fluorescent probe to detect Fe3+ with a detection limit of 0.259 μM.

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