Journal
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
Volume 14, Issue 10, Pages 2055-2066Publisher
SPRINGER
DOI: 10.1007/s13738-017-1142-9
Keywords
Photocatalysis; Nanohybrid materials; Water purification; BiOBr; Stability
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Funding
- Natural Science Foundation of Hubei Province of China [2011CDB148]
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A highly efficient and stable ZnO-BiOBr composite photocatalyst was prepared by a facile one-pot solvothermal method. A variety of sophisticated techniques such as X-ray diffraction (XRD), X-ray photoemission spectroscopy (XPS), UV-Vis diffuse reflectance spectra, photoluminescence spectra and photoelectrochemical measurement, and so on were employed to characterize the materials. The as-prepared ZnO-BiOBr nanocrystalline showed strong photocatalytic activity for decomposition of methylene blue (MB), Orange II and biphenol A (BPA) under simulated visible light illumination. The possible working principle for the superior photocatalytic properties and reusability of the ZnO-BiOBr hybrid was surveyed to disclose contributions of various effects for the photoactivity enhancement. It was pointed out that *OH and holes take priority over a (TM) O-2 (-) radicals in serving as the main oxidant in the reaction system. The experimental results indicated that the ZnO-BiOBr composite is highly photostable and valuable for real environmental applications.
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