Synthesis of Fluorescent Copper Nanoparticles and Ultrasensitive Free Label Detection of Ag+

• Main Authors: Ning Wang, Lu Ga, Meilin Jia, Jun Ai
• Format: Article
• Language: English
• Published: Hindawi Limited 2019-01-01
• Series: Journal of Nanomaterials
• Online Access: http://dx.doi.org/10.1155/2019/4089731

In recent years, the application of fluorescent copper nanomaterials in environmental detection has attracted much attention. This paper mainly introduces the synthesis of copper nanomaterials and the detection of Ag+. A simple method for the determination of Ag+ in water was established by using fluorescent copper nanoparticles synthesized by using glucose (Glc) as a reducing agent as a fluorescent probe. The experimental mechanism of this experiment is that silver ions can rapidly and effectively quench the fluorescence of Glc-CuNPs. A good linear relationship was observed in the range of Ag+ at 100 mol/L–600 mol/L (R=0.9845); the color is gradually enhanced under visible light and visual colorimetric detection. Moreover, the Glc-CuNP sensor selectively selected Ag+, which was not affected by other metal ions, indicating that Glc-CuNPs had good selectivity for the detection of Ag+. Based on this, Glc-CuNP completes the detection of heavy metal silver ions and has a good application prospect in environmental detection.