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Laser & Optoelectronics Progress, Volume. 61, Issue 15, 1516001(2024)

Preparation of a Novel Carbon Quantum Dot Photoluminescent Probe and Its Selective Detection of Mn2+

Xiang Deng1,2, Xiaomei Huang1、*, Zihe Deng3, Min Li4, Anjie Gong1, and Tao Huang1
Author Affiliations
  • 1Department of Chemistry and Chemical Engineering, Sichuan Institute of Arts and Science, Dazhou 635002, Sichuan, China
  • 2Key Laboratory of Low-cost Rural Environmental Treatment Technology at Sichuan Institute of Arts and Science, Education Department of Sichuan Province, Dazhou 635002, Sichuan, China
  • 3College of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, Xinjiang, China
  • 4Dazhou Vocational College of chinese medicine, Dazhou 635000, Sichuan, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
    Equations (3)
    References (36)
    Cited By (2)
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    Figures & Tables(11)
    Schematic principle of photoluminescent quenching method for Mn2+ detection using photoluminescent CQDs prepared with the traditional Chinese medicinal material Magnolia officinalis

    Fig. 1. Schematic principle of photoluminescent quenching method for Mn2+ detection using photoluminescent CQDs prepared with the traditional Chinese medicinal material Magnolia officinalis

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    Experimental results of CQDs. (a) TEM image; (b) XPS survey curves; (c) emission spectra; (d) photoluminescent spectra and absorption spectrum

    Fig. 2. Experimental results of CQDs. (a) TEM image; (b) XPS survey curves; (c) emission spectra; (d) photoluminescent spectra and absorption spectrum

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    Feasibility analysis of detecting Mn2+

    Fig. 3. Feasibility analysis of detecting Mn2+

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    Optimization of the pH conditions for detecting Mn2+

    Fig. 4. Optimization of the pH conditions for detecting Mn2+

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    Optimization of the reaction time for detecting Mn2+

    Fig. 5. Optimization of the reaction time for detecting Mn2+

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    Photoluminescence lifetime for Mn2+ detection system using CQDs

    Fig. 6. Photoluminescence lifetime for Mn2+ detection system using CQDs

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    Photoluminescent probe selectivity experiments

    Fig. 7. Photoluminescent probe selectivity experiments

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    (a) Photoluminescent spectra and (b) standard curve of Mn2+ quantitative analysis

    Fig. 8. (a) Photoluminescent spectra and (b) standard curve of Mn2+ quantitative analysis

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    • Table 1. Interference experiments of coexisting ions at different concentrations

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      Table 1. Interference experiments of coexisting ions at different concentrations

      Interference ion

      Concentration /

      （μmol/L）

      		［（I0-I）/I0］/%RSD /%Interference ion

      Concentration /

      （μmol/L）

      		［（I0-I）/I0］/%RSD /%
      F-50063.11.2Fe3+100063.71.8
      Cu2+50062.80.8I-200064.10.9
      Al3+50061.31.5Ag+200062.22.6
      Br-100061.92.2Cd2+200061.40.8
      Hg2+100063.60.6Pb2+200063.31.6
      Co2+100061.22.5Cr3+200062.52.2

    • Table 2. Comparison of the Mn2+ detection methods

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      Table 2. Comparison of the Mn2+ detection methods

      MethodType of probesLinear range /（μmol/L）Limit of detection /（nmol/L）Ref.
      Chemiluminescence（CL）NCQDs0.3‒5043［16］
      Chemiluminescence（CL）MCFCNT0.66‒6.793［17］
      UV-VisAg NPs0.15‒1520［13］
      UV-VisAg NPs0.05‒1012.6［14］
      Photoluminescence（PL）KBNCDs5‒251200［33］
      Photoluminescence（PL）Ti3C2 NSs0.5‒60102［36］
      Photoluminescence（PL）CQDs0.2‒80052Proposed

    • Table 3. Detection and recovery experiments of Mn2+ in the real water samples

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      Table 3. Detection and recovery experiments of Mn2+ in the real water samples

      SampleFound /（μmol/L）Added /（μmol/L）Total found /（μmol/L）RSD /%Recovery /%
      1‒

      5

      50

      100

      5.1，4.9，5.0，4.9，4.8

      51.2，50.6，50.4，49.1，49.4

      100.4，101.6，99.3，100.6，99.4

      2.3

      1.7

      0.9

      98.8

      100.3

      100.3

      2‒

      5

      50

      100

      5.0，5.0，5.2，4.8，5.1

      49.8，50.5，50.7，49.1，49.3

      101.6，99.7，102.5，101.3，102.2

      2.9

      1.4

      1.1

      100.4

      99.8

      101.5

      30.7

      5

      50

      100

      5.8，5.5，5.7，5.8，5.6

      50.2，51.3，51.6，51.5，49.8

      99.7，102.2，100.5，98.1，100.3

      2.3

      1.6

      1.5

      99.6

      100.4

      99.5

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    Xiang Deng, Xiaomei Huang, Zihe Deng, Min Li, Anjie Gong, Tao Huang. Preparation of a Novel Carbon Quantum Dot Photoluminescent Probe and Its Selective Detection of Mn2+[J]. Laser & Optoelectronics Progress, 2024, 61(15): 1516001

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    Paper Information

    Category: Materials

    Received: Jul. 13, 2023

    Accepted: Aug. 30, 2023

    Published Online: Aug. 12, 2024

    The Author Email: Xiaomei Huang (huangxm917@163.com)

    DOI:10.3788/LOP231715

    CSTR:32186.14.LOP231715

    Topics

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