A scalable synthesis technique of hierarchical BiOBr microspheres for advanced visible light photocatalyst
作者： Kai Dai , Dongpei Li , Jiali lv , Luhua Lu , Changhao Liang
DOI: 10.1016/J.MATLET.2014.08.105
关键词: Chemical engineering 、 Photocatalysis 、 Hydrothermal circulation 、 Reaction rate constant 、 Materials science 、 Crystallinity 、 Visible spectrum 、 Scanning electron microscope 、 Methylene blue 、 Photodegradation 、 Nanotechnology
摘要: Abstract In this paper, unique hierarchical nanosheet-assembled BiOBr microspheres were successfully synthesized by a facile hydrothermal process. The morphological and structural observation crystallinity of the products characterized scanning electron microscopy (SEM), X-ray diffraction (XRD) energy dispersive spectrometer (EDS). results showed that microspheres, composed nanosheets, are uniform very pure. Methylene blue (MB) was employed as representative dye pollutant to evaluate high photocatalytic activity under visible light irradiation (>420 nm), reaction follows first-order kinetics rate constant for degradation MB photocatalyzed is much higher than Degussa P25.
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