• Spectroscopy and Spectral Analysis
  • Vol. 40, Issue 10, 3086 (2020)
Qi-xian CHEN1,1,*, Qi-dan CHEN1,1, and Xue-yuan ZHONG1,1
Author Affiliations
  • 1[in Chinese]
  • 11. School of Chemical Engineering and New Energy Materials, Zhuhai College of Jilin University, Zhuhai 519041, China
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    DOI: 10.3964/j.issn.1000-0593(2020)10-3086-06 Cite this Article
    Qi-xian CHEN, Qi-dan CHEN, Xue-yuan ZHONG. Preparation of Eco-Friendly Luminescent Carbon Dots Nanomaterial and Application of Hg2+ Detection[J]. Spectroscopy and Spectral Analysis, 2020, 40(10): 3086 Copy Citation Text show less
    TEM images of the CDs
    Fig. 1. TEM images of the CDs
    Viabilities of hepatocytes incubated with different concentrations of CDs by MTT assayin mice
    Fig. 2. Viabilities of hepatocytes incubated with different concentrations of CDs by MTT assayin mice
    (a) UV-Vis spectra and Fluorescence spectra of CDs; (b) Fluorescence spectra under different excitation wavelengthsConditions: 180 ℃, 16 h, λex=532 nm, λem=596 nm, concentration of CDs: 20 μg·mL-1
    Fig. 3. (a) UV-Vis spectra and Fluorescence spectra of CDs; (b) Fluorescence spectra under different excitation wavelengths
    Conditions: 180 ℃, 16 h, λex=532 nm, λem=596 nm, concentration of CDs: 20 μg·mL-1
    FTIR spectra of CDs
    Fig. 4. FTIR spectra of CDs
    (a) Fluorescent intensities variations of CDs added in differentmetal ions; (b) A plot of the fluorescence intensity against Hg2+ concentration in a range of 0~10 μg·mL-1Insert shows the linear relationship between the relative fluorescence intensity [(F0-F1)/F0] and Hg2+ concentration (0~0.005 μg·mL-1)
    Fig. 5. (a) Fluorescent intensities variations of CDs added in differentmetal ions; (b) A plot of the fluorescence intensity against Hg2+ concentration in a range of 0~10 μg·mL-1
    Insert shows the linear relationship between the relative fluorescence intensity [(F0-F1)/F0] and Hg2+ concentration (0~0.005 μg·mL-1)
    加标浓度/
    (μg·mL-1)
    检测平均值/
    (μg·mL-1)
    回收率/%RSD/%
    0.0030.002 8911.2
    0.0300.031 91060.5
    1.0001.060 01061.5
    2.0002.080 01040.8
    Table 1. Recoveries of Hg2+ detection from spiked drinking water samples by CDs
    Qi-xian CHEN, Qi-dan CHEN, Xue-yuan ZHONG. Preparation of Eco-Friendly Luminescent Carbon Dots Nanomaterial and Application of Hg2+ Detection[J]. Spectroscopy and Spectral Analysis, 2020, 40(10): 3086
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