Room Temperature Synthesis of Bismuth Oxyiodide with Different Morphologies for the Photocatalytic Degradation of Norfloxacin
In this study, both BiOI spheres and BiOI plates were synthesized successfully at room temperature and applied for the photocatalytic degradation of norfloxacin using indoor fluorescent light illumination. The samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-Vis absorption spectrum, scanning electron microscope (SEM) and Brunauer-Emmett-Teller (BET). Although both BiOI spheres and BiOI plates displayed approximately similar absorption band edge, higher photocatalytic degradation was noticed in the case of BiOI spheres as compared with BiOI plates. This was attributed to the unique features of BiOI spheres, such as enlarged specific surface area and enhanced adsorption capacity. The study demonstrated that morphology has a key role in improving the degradation efficiency of a photocatalyst.
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