Laser & Optoelectronics Progress, Volume. 58, Issue 9, 0916002(2021)
Synthesis of Fluorescent N/Al Co-Doped Carbon Dots and Its Application in Detection of Hydrogen Peroxide
A simple one-pot solvothermal procedure was employed to synthesize N/Al co-doped carbon dots(CDs) with a red emission photoluminescence quantum yield up to 30% in aqueous solution. The particle size, surface functional groups and fluorescent properties of the as-prepared CDs were characterized by atomic force microscopy (AFM), dynamic light scattering (DLS) granulometer, fluorescence spectrometer, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FTIR). The average diameter of the as-prepared N/Al co-doped carbon point particles is 6.5 nm, and CD particles have strong anti-bleaching ability under the influences of high concentration salt ion solution, UV irradiation and temperature change. Meanwhile, these CDs can be developed as a novel fluorescence probe for the detection of H2O2 with a detection limit of 1.3 μmol/L. Moreover, there exists a linear correlation between the quenching efficiency of CD fluorescence and the concentration of H2O2 within 0.12?1 mmol/L.
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Pengtao Pan, Fanyu Zou, Lijuan Zhi, Junlei Yin. Synthesis of Fluorescent N/Al Co-Doped Carbon Dots and Its Application in Detection of Hydrogen Peroxide[J]. Laser & Optoelectronics Progress, 2021, 58(9): 0916002
Category: Materials
Received: Aug. 4, 2020
Accepted: Oct. 12, 2020
Published Online: May. 12, 2021
The Author Email: Pan Pengtao (panpengtao126@163.com)