Effect of the nanoparticle composition on the fluorescence of carbon nitride coatings

In this report we present results on synthesis of graphitic carbon nitride (g-C₃N₄) coating on various nanoparticles. Carbon nitride coatings were grown on of SiO₂, TiO₂, and Fe₂O₃ nanoparticles by the decomposition of the melamine at 300 °C. Relative fluorescence quantum yield was determined by comparing the fluorescence intensity of coated nanoparticles with that of the fluorescein in NaOH solution excited a green laser (532 nm). It was demonstrated that the g-C₃N₄ coated TiO₂ nanoparticles have the highest quantum yield of the fluorescence among investigated nanoparticles. (paper)