Abstract
In this work, undoped and nickel doped SnO2 nanoparticles were synthesized by simple chemical precipitation method and their characterized by thermo gravimetric and differential thermal analysis, X-ray diffraction, X-ray photoelectron spectroscopy, UV–Visible diffuse reflectance spectroscopy, photoluminescence spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy with energy-dispersive spectrum and transmission electron microscopy. The results indicated that the structural analysis show the tetragonal rutile phase form of SnO2 at 410 °C for 2 h. Optical measurements indicated a red shift in the absorption band edge after Ni doping. A decrease of PL emission of Ni doped SnO2 compared to the SnO2 nanoparticles. The photocatalytic activity of undoped and Ni doped SnO2 nanoparticles were evaluated in the degradation of brilliant green (BG) solution under sunlight irradiation. The various experimental parameters such as amount of catalyst, contact time for efficient dye degradation of BG were concerned in this study. The results showed that Ni doped SnO2 nanoparticles enhanced the photocatalytic activity than SnO2 nanoparticles and inhibition of the electron–hole pair’s recombination.
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