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Novel Bi2S3/TiO2 Heterogeneous Catalyst: Photocatalytic Mechanism for Decolorization of Texbrite Dye and Evaluation of Oxygen Species
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 Title & Authors
Novel Bi2S3/TiO2 Heterogeneous Catalyst: Photocatalytic Mechanism for Decolorization of Texbrite Dye and Evaluation of Oxygen Species
Zhu, Lei; Oh, Won-Chun;
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A heterogeneous composite catalyst was synthesized via a green ultrasonic-assisted method and characterized by XRD, SEM, EDX, TEM analysis. The results clearly show that the particles were homogenously coated with particles, indicating that particle agglomeration was effectively inhibited after the introduction of anatase . The Texbrite BA-L (TBA) degradation rate constant for composites reached under visible light, much higher than the corresponding value of for . The quantities of generated hydroxyl radicals can be analyzed by DPCI degradation, which shows that under visible light irradiation, more electron-hole pairs can be generated. Finally, the possible mechanism for the generation of reactive oxygen species under visible-light irradiation was proposed as well. Our result shows the significant potential of -semiconductor-based hybrid materials as catalysts under visible light for the degradation of industry dye effluent substances.
Heterogeneous;Sonochemical;Visible light;;DPCO;
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