Abstract
Here we report on a simple, time efficient, and environmentally friendly Microwave-assisted approach towards the synthesis of glycine (GLY) capped SnO2 nanoparticles. Highly monodispersed GLY@SnO2 nanocrystals were obtained within 50 s of microwave irradiation. The structure of GLY@SnO2 investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), and FT-IR spectroscopy. The average size of SnO2 was calculated to be 5.5 nm by different spectroscopic techniques such as XRD and TEM. Photophysical properties of GLY@SnO2 NPs were explored by UV-visible, and fluorescence spectroscopy. The NPs exhibit the characteristic emission peaks for both GLY and the pristine SnO2 NPs. The synthesized nanoparticles were used in photocatalytic degradation of Nile blue (NB) dye. The photocatalytic degradation attributed to the separation of the photogenerated holes and electrons. In addition, the excited state quenching mechanism of the NB by SnO2 NPs was investigated. The quenching mechanism occurs by the formation of ground state complex formation.