Abstract
In this research, BiOCl/Bi2WO6 nanocomposites were successfully synthesized by a microwave-assisted hydrothermal method. Phase, morphology and optical properties of the as-synthesized products were investigated by X-ray powder diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, field emission scanning electron microscopy and photoluminescence (PL) spectroscopy. The as-synthesized products were BiOCl/Bi2WO6 nanocomposites composed of Bi2WO6 microflowers mixed with BiOCl nanoplates. The photocatalytic properties of BiOCl/Bi2WO6 nanocomposites were estimated through photodegradation of rhodamine B and salicylic acid as organic models in wastewater. The 80 wt% BiOCl/Bi2WO6 nanocomposites presented the highest photocatalytic efficiency and were certified for the lowest photonic emission by PL analysis. There was a trivial loss of activity even after four re-cycle tests. A mechanism for photocatalysis by BiOCl/Bi2WO6 nanocomposites was also proposed.
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Acknowledgements
We wish to thank Chiang Mai University (CMU) Thailand for financial support through the CMU Research Fund, and Center of Excellence in Materials Science and Technology, CMU for financial support under the administration of Materials Science Research Center, Faculty of Science, CMU, Thailand.
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Dumrongrojthanath, P., Saksoong, T., Patiphatpanya, P. et al. Microwave-assisted hydrothermal synthesis of BiOCl/Bi2WO6 nanocomposites for the enhancement of photocatalytic efficiency. Res Chem Intermed 45, 2301–2312 (2019). https://doi.org/10.1007/s11164-018-03734-8
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DOI: https://doi.org/10.1007/s11164-018-03734-8