研究目的
Detecting nickel ions (Ni2+) in the environment using a new imidazole modified carbon dots (CDs) based on fluorescence quenching method.
研究成果
The CD-imidazole quantum dots developed in this study have high water solubility, specificity, and fluorescence properties, making them suitable for Ni2+ detection in the environment. The method shows good linearity and selectivity for Ni2+.
研究不足
The detection limit of this method is higher compared to some other methods, but it offers a wider linear range and simpler operation.
1：Experimental Design and Method Selection:
The synthesis of CD-imidazole was carried out with modifications from previous research. The fluorescence quenching method was used for Ni2+ detection.
2：Sample Selection and Data Sources:
Tap water samples were used for actual Ni2+ detection.
3：List of Experimental Equipment and Materials:
JEM-2100F TEM, Varian-660 Fourier transform infrared spectrometer, CaryEclipse fluorescence spectrophotometer, UV-29100 ultraviolet-visible spectrophotometer, AEU-200 electronic scales.
4：Experimental Procedures and Operational Workflow:
CD-imidazole was synthesized and characterized by TEM and FTIR. Ni2+ detection was performed by adding different volumes of standard Ni2+ solutions to CD-imidazole and measuring fluorescence intensity.
5：Data Analysis Methods:
Fluorescence intensity was measured and analyzed to determine Ni2+ concentration.
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JEM-2100F TEM
JEM-2100F
JEOL
Characterization of quantum dots morphology
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UV-29100 ultraviolet-visible spectrophotometer
UV-29100
Shimadzu
Ultraviolet visible absorption spectrum testing
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AEU-200 electronic scales
AEU-200
Shimadzu
Weighing drugs
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Varian-660 Fourier transform infrared spectrometer
Varian-660
Varian
FT-IR testing
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CaryEclipse fluorescence spectrophotometer
CaryEclipse
Varian
Recording fluorescence spectrum and Resonance Light Scattering (RLS)
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WaterPro water purification system
WaterPro
Labconco
Preparation of high-purified water
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