Journal
MATERIALS RESEARCH BULLETIN
Volume 118, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2019.110521
Keywords
Semiconductors; Crystal growth; BiOBr; Surfaces; C-70
Categories
Funding
- National Natural Science Foundation of China [21777168]
- program of Science and Technology Department of Sichuan province [2019YJO457]
- Students Innovation Project of Sichuan Province [201710622065, cx2017019]
- Project of Zigong city [2016HG06, 2018YYJC10]
- Opening Project of Key Laboratory of Green Catalysis of Sichuan Institutes of High Education [LYJ14205]
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In this study, flower-like BiOBr photocatalyst was prepared by a facile hydrothermal approach with the assistance of C-70. C-70/BiOBr photocatalyst was characterized by a serials method. The presence of C-70 promotes the specific surface area and induces BiOBr to form unique flower-like structure as template as well as boosts the surface hydroxyl content. Originating from powerful electron acceptability of C-70, C-70/BiOBr holds high separation rate of photo-excited carriers, resulting in formation of high level of center dot O-2(-) and center dot OH. All these advantage factors endow with C-70/BiOBr enhanced photocatalytic activity toward degradation of phenol and rhodamine B (RhB) under simulated sunlight irradiation. Moreover, C-70/BiOBr possesses good stability due to the strong chemical interaction between C-70 and BiOBr, proven by XRD and X-ray photoelectron spectroscopy (XPS) characterization. The study provides a valid strategy to design and prepare high-performance sunlight-driven BiOBr-based photocatalysts.
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