Hydrothermal synthesis of Bi2WO6/SC catalyst and its photo-catalytic performance in NO removal

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College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao [1 ]
266100, China
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Ranliao Huaxue Xuebao J. Fuel Chem. Technol. | / 6卷 / 735-739期
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Absorption spectroscopy - Bismuth compounds - Catalyst activity - Catalytic oxidation - Image processing - Irradiation - Light;
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摘要：
A novel Bi2WO6/SC photo-catalyst was synthesized by hydrothermal method with semi-coke (SC) as the support. The as-prepared catalyst was characterized by SEM, BET, XRD, FT-IR and UV-vis diffuse reflectance spectra; its photo-catalytic activity in NO oxidation under visible light irradiation (λ > 400 nm) was evaluated. The results indicate that Bi2WO6 obtained by hydrothermal method displays micro-flower structure and absorption spectrum toward the visible light region above 400 nm. The Bi2WO6/SC catalyst exhibits excellent photo-catalytic activity in NO removal; NO conversion remains higher than 70% after reaction under irradiation for 4 h. ©, 2015, Science Press. All right reserved.
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