Composited BiOI Nanoplatelets on Carbon Fibers Towards Enhanced Photocatalysis

Journal of Nanoscience and Nanotechnology
Gang WangPing Yang

Abstract

BiOI nanoplatelets were successfully grown on carbon fibers (CFs) surface, which had been activated in acid and alkaline solution (CFs-AC and CFs-AL). The BiOI microspheres composed of nanoplatelets were distributed relatively equally on CFs surface after acidizing while the CFs treatment by alkaline solution the BiOI nanoplatelets cannot combined tightly with CFs. The as-prepared BiOI/CFs was characterized by X-ray diffraction, scanning electron microscopy and UV-vis diffuse reflectance spectroscopy. The possible mechanism of BiOI/CFs formation was attributed to the electrostatic adsorption in reaction process. The photocatalytic of the as-prepared samples (CFs-AC and CFs-AL) were evaluated by degradation of rhodamine B (RhB) under visible light irradiation at room temperature. CFs-AC possessed higher photocatalytic activity than that of CFs-AL, pure CFs and BiOI. The mechanism of the enhancement of photocatalytic process was discussed.

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