Hydrothermal synthesis of BiOBr/semi-coke composite as an emerging photo-catalyst for nitrogen monoxide oxidation under visible light

•A novel BiOBr/SC composite was synthesized by a facile hydro-thermal method.•BiOBr/SC composite shows significant photo-catalytic oxidation of NO under visible light.•BiOBr/SC composite shows great potential in large-scale environmental applications.

BiOBr/semi-coke (SC) composite photo-catalyst was synthesized by a facile hydro-thermal method. The obtained samples were characterized by N2 adsorption–desorption, X-ray diffraction (XRD) and UV–visible diffuse reflectance spectroscopy (UV–vis DRS). The photo-catalytic activity of as-prepared samples was evaluated by the oxidation of nitrogen monoxide (NO) under visible light irradiation. The results revealed that BiOBr/SC composite exhibited higher photo-catalytic activity than pure BiOBr.

Graphical abstractThe process of de-nitration using BiOBr/SC as the photo-catalyst under visible light.Figure optionsDownload full-size imageDownload high-quality image (110 K)Download as PowerPoint slide