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Updated: Feb 13, 2026

Preparation of Carbon Nanosheets at Room Temperature
Published on: March 8, 2016
Phosphorus doped graphitic carbon nitride nanosheets as fluorescence probe for the detection of baicalein
Xuan Wang1, Xuebing Li2, Wenfang Chen2
1College of Pharmacy, Shanxi Medical University, Taiyuan 030001, PR China.
Abstract:
Phosphorus doped graphitic carbon nitride (P-g-C3N4) nanosheets were synthesized by calcination. P-g-C3N4 nanosheets were characterized by XRD, XPS, TEM, fluorescence, ultraviolet-visible absorption and Fourier transform infrared spectroscopy. The fluorescence of the P-g-C3N4 nanosheets was gradually quenched with the increase in the concentration of baicalein at room temperature. The proposed probe was used for the determination of baicalein in the concentration 2.0-30μM with a detection limit of 53nM. The quenching mechanism was discussed. The P-g-C3N4 nanosheets have been successfully applied for effective and selective detection of baicalein in human urine samples and blood samples.
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