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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- Spectroscopy and Spectral Analysis
- Vol. 40, Issue 10, 3086 (2020)

Fig. 1. TEM images of the CDs

Fig. 2. Viabilities of hepatocytes incubated with different concentrations of CDs by MTT assayin mice

Fig. 3. (a) UV-Vis spectra and Fluorescence spectra of CDs; (b) Fluorescence spectra under different excitation wavelengths
Conditions: 180 ℃, 16 h,λ ex=532 nm, λ em=596 nm, concentration of CDs: 20 μg·mL-1
Conditions: 180 ℃, 16 h,

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)](/Images/icon/loading.gif)
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 [(F 0-F 1)/F 0] and Hg2+ concentration (0~0.005 μg·mL-1)
Insert shows the linear relationship between the relative fluorescence intensity [(
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Table 1. Recoveries of Hg2+ detection from spiked drinking water samples by CDs

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