Immobilization of the Fe2O3/TiO2 photocatalyst on carbon fiber cloth for the degradation of a textile dye under visible light irradiation
| Autor: | Mohsen Behpour, Pirooz Shirazi, Mehdi Rahbar |
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| Rok vydání: | 2019 |
| Předmět: |
Photoluminescence
Materials science 010405 organic chemistry Chemical oxygen demand 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Photocatalysis Degradation (geology) Diffuse reflection Physical and Theoretical Chemistry Fourier transform infrared spectroscopy Visible spectrum Nuclear chemistry |
| Zdroj: | Reaction Kinetics, Mechanisms and Catalysis. 127:1073-1085 |
| ISSN: | 1878-5204 1878-5190 |
| Popis: | This work focuses on the photocatalytic activity of immobilized Fe2O3/TiO2 on carbon fiber cloth as a chemically stable and flexible supporting material toward degradation of textile dye [Basic Blue 41 (BB 41)] under visible light. The photocatalysts were characterized by SEM, XRD, diffuse reflectance UV–Vis, photoluminescence spectroscopy, and FTIR. The photocatalytic activities of immobilized Fe2O3/TiO2 samples with different contents of Fe2O3 (5–25 wt%) were studied for degradation of BB 41 solution (100 ml, 10 ppm) under visible light irradiation for 240 min. The optimum amount of Fe2O3 was found to be 20 wt% from experimental results that indicated 97.54% photoactivity. In order to further investigate the photocatalytic degradation, chemical oxygen demand experiments were carried out that showed the degradation of dye solution was about 84% utilizing the optimum photocatalyst. The reusability of the optimum photocatalyst was studied in 7 reaction cycles (28 h) which revealed only 13% loss of photoactivity. |
| Databáze: | OpenAIRE |
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