SYNTHESIS AND CHARACTERIZATION OF Ag/BiOBr NANOCOMPOSITES FOR PHOTODEGRADATION OF METHYLENE BLUE AS MODEL DYE

[摘要] Ag/BiOBr nanocomposites with different Ag contents were prepared by deposition-sonochemical method. Phase and morphology of the products were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The experimental results showed that Ag nanoparticles supported on surface of tetragonal BiOBr nanoplates. The photocatalytic properties of Ag/BiOBr nanocomposites were investigated through photocatalytic degradation of methylene blue (MB) under UV light irradiation. In this research, 10 wt% Ag/BiOBr nanocomposites showed the highest photocatalytic activity under visible light irradiation.

[学科分类] 生物技术

[关键词] Ag/BiOBr nanocomposites;Photocatalysis;X-ray diffraction;Spectroscopy