Photo-, sono- and sonophotocatalytic degradation of methylene blue using Fe3O4/ZrO2 composites catalysts

In the present work, magnetite material Fe3O4/ZrO2 with various molar ratios was prepared by the two-step method (sol-gel followed by the ultrasonic-assisted method). The as-prepared samples were fairly characterized by various characterization methods, such as X-ray Diffraction (XRD), Vibrating Sam...

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Bibliographic Details
Main Authors: Kristianto, Y., Taufik, A., Saleh, R.
Format: Conference Proceeding
Language:English
Subjects:
Catalysis
Catalysts
Degradation
Dyes
Fourier transforms
Gravimetric analysis
Infrared analysis
Iron oxides
Irradiation
Methylene blue
Sol-gel processes
Thermal analysis
Ultrasonic imaging
Ultrasonic testing
Ultraviolet radiation
X-ray diffraction
Zirconium dioxide
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Summary:In the present work, magnetite material Fe3O4/ZrO2 with various molar ratios was prepared by the two-step method (sol-gel followed by the ultrasonic-assisted method). The as-prepared samples were fairly characterized by various characterization methods, such as X-ray Diffraction (XRD), Vibrating Sample Magnetometer (VSM), Fourier Transform Infrared (FT-IR) and Thermal Gravimetric Analysis (TGA). The catalytic performance of the as-prepared samples was evaluated based on the degradation of methylene blue under UV light, ultrasound and combination of UV and ultrasound irradiation. The results revealed that the sample with Fe3O4:ZrO2 molar ratio of 0.5:1 showed the best catalytic performance under UV, ultrasound and UV + ultrasound irradiation. The degradation of methylene blue follows the order: sonophotocatalytic > sonocatalytic > photocatalytic. In addition, the effect of various scavengers has also been studied. Furthermore, all prepared samples could be used as a convenient recyclable catalyst.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4991121