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Laser & Optoelectronics Progress, Volume. 59, Issue 21, 2130002(2022)

Preparation Novel Fluorescent Carbon Dots and Its Application in 2, 4, 6-Trinitrophenol Detection

Xiang Deng1,2、*, Xiaomei Huang1,2,3, Wei Chen1, and Huali Zhao1
Author Affiliations
  • 1Department of Chemistry and Chemical Engineering, Sichuan University of Arts and Science, Dazhou 635000, Sichuan, China
  • 2Sichuan Key Laboratory of Characteristic Plant Development Research, Dazhou 635000, Sichuan, China
  • 3Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education, Zigong 643000, Sichuan, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (28)
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    Figures & Tables(8)
    Fluorescent carbon dots morphology and element characterization. (a) TEM image of fluorescent carbon dots; (b) XPS image of fluorescent carbon dots

    Fig. 1. Fluorescent carbon dots morphology and element characterization. (a) TEM image of fluorescent carbon dots; (b) XPS image of fluorescent carbon dots

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    Fluorescent carbon dots spectrographs. (a) Fluorescent spectra of carbon dots; (b) absorption spectra of carbon dots and TNP

    Fig. 2. Fluorescent carbon dots spectrographs. (a) Fluorescent spectra of carbon dots; (b) absorption spectra of carbon dots and TNP

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    Effect of different pH on fluorescent intensity of carbon dots

    Fig. 3. Effect of different pH on fluorescent intensity of carbon dots

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    Effect of different reaction time on fluorescent intensity of carbon dots

    Fig. 4. Effect of different reaction time on fluorescent intensity of carbon dots

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    Effect of other nitrophenols on fluorescent intensity of carbon dots

    Fig. 5. Effect of other nitrophenols on fluorescent intensity of carbon dots

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    Linear plot of the TNP detection method. (a) Fluorescent spectra of carbon dots of different concentrations of TNP; (b) linear calibration curve

    Fig. 6. Linear plot of the TNP detection method. (a) Fluorescent spectra of carbon dots of different concentrations of TNP; (b) linear calibration curve

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    • Table 1. Interference experiment results

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      Table 1. Interference experiment results

      Interference ionConcentration /（mmol∙L-1 ）［（I0-I） /I0］ /%Relative standard deviation /%Interference ionConcentration /（mmol∙L-1）［（I0-I） /I0］ /%Relative standard deviation /%
      2，4-DNP1.280.51.02，4-DNB2.479.72.1
      4-NP1.279.91.22-NB2.479.41.2
      2，6-DNT1.279.63.02-NP4.879.80.8
      TNB1.278.01.72，4-DNT4.879.22.1
      2，6-DNP2.479.32.24-NT4.879.21.4
      TNT2.479.41.72，6-DNB4.879.40.7
      2-NT2.479.90.74-NB4.879.62.0

    • Table 2. Comparison of different fluorescent methods for TNP detection

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      Table 2. Comparison of different fluorescent methods for TNP detection

      Detection probeLinear range /（μmol∙L-1）Limit of detection /（nmol∙L-1）Reference
      Silicon nanoparticles0.1-52429［2］
      A-cyanostilbene derivatives

      0.1-5

      0.2-10

      285

      1960

      		［5］
      Nitrogen-doped graphene quantum dots （N-GQDs）1.0-60300［10］
      C-dots with malonic acid and urea0.1-26.551［24］
      Copper nanoclusters0.8-100120［25］
      Fluorescent organic nanoparticle2.2-352200［26］
      Amine-capped carbon dots1.0-5001000［27］
      ZnSe QDs2.0-25012400［28］
      C-dots0.8-80160This work
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    Xiang Deng, Xiaomei Huang, Wei Chen, Huali Zhao. Preparation Novel Fluorescent Carbon Dots and Its Application in 2, 4, 6-Trinitrophenol Detection[J]. Laser & Optoelectronics Progress, 2022, 59(21): 2130002

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    Paper Information

    Category: Spectroscopy

    Received: Dec. 23, 2021

    Accepted: Feb. 21, 2022

    Published Online: Oct. 24, 2022

    The Author Email: Xiang Deng (dxw8066031@163.com)

    DOI:10.3788/LOP202259.2130002

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology