Abstract
g-C3N4/BiOX (X = Cl, Br, I) composite photocatalysts have been prepared by means of a facile immersion–hydrolysis method. The microstructural and morphological characteristics of the as-prepared composite photocatalysts were investigated by means of X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and Fourier-transform infrared spectroscopy. The photodegradation performance of both g-C3N4/BiOCl and g-C3N4/BiOBr composites was superior to that of pure g-C3N4 or the corresponding bismuth oxyhalides, possibly because of efficient separation of photogenerated carriers at the interface between g-C3N4 and BiOX (X = Cl, Br). The photostability of as-prepared g-C3N4/BiOX (X = Cl, Br) composites was also investigated.
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Acknowledgments
Support under projects of the National Natural Science Foundation of China (51172044) and the National Science Foundation of Jiangsu Province of China (BK2011617), and under the 333 project of Jiangsu province is highly appreciated. This work is also supported by #R15-CW-11 (MIT11109 and MIT11110) by KFUPM and the Guangxi Key Laboratory of Information Materials (Guilin University of Electronic Technology project no. 131007-K).
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Sun, J., Song, J., Gondal, M.A. et al. Preparation of g-C3N4/BiOX (X = Cl, Br, I) composites, and their photocatalytic activity under visible light irradiation. Res Chem Intermed 41, 6941–6955 (2015). https://doi.org/10.1007/s11164-014-1789-0
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DOI: https://doi.org/10.1007/s11164-014-1789-0