首页|δ-FeOOH coupled BiOBr0.5I0.5 for efficient photocatalysis-Fenton synergistic degradation of organic pollutants
δ-FeOOH coupled BiOBr0.5I0.5 for efficient photocatalysis-Fenton synergistic degradation of organic pollutants
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NSTL
Elsevier
? 2022 Elsevier B.V.The development of effective catalysts is crucial for refractory antibiotics pollutants removal. A visible light-driven δ-FeOOH/BiOBrxI1?x photocatalyst for the tetracycline (TC) degradation was fabricated and a photocatalysis-Fenton synergy system was formed in the presence of H2O2. δ-FeOOH/BiOBrxI1?x indicated better photo-Fenton catalytic activity and good cycle stability under visible light irradiation. Especially, δ-FeOOH/BiOBr0.5I0.5 exhibited the highest photo-Fenton catalytic activity and the removal efficiency of TC was 93% within 1 h, which was 1.63 times of the degradation efficiency of photocatalysis alone. This could be attributed to the synergistic effects of δ-FeOOH and BiOBr0.5I0.5, which promoted the separation of the photoinduced charge carriers and thus improved the photo-Fenton performance. Meanwhile, the presence of H2O2 enabled the conversion between Fe2+ and Fe3+. In addition, the ?O2?and ?OH active radicals were confirmed to greatly accelerate the degradation of TC and the possible mechanism was revealed. This study might provide a promising candidate for the development of effective catalyst in the treatment of antibiotic wastewaters.
Chen K.、Wang Q.、Yang H.、Ding Y.、Li Z.、Yue S.、Tang Y.、Li J.
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School of Water and Environment Chang'an University
Institute of Advanced Electrochemical Energy Shaanxi International Joint Research Centre of Surface Technology for Energy Storage Materials School of Materials Science and Engineering Xi'an University of Technology
Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility and State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation) and Shaanxi Key Laboratory of Chinese Medicine Fundame
NSTL
Elsevier
