Title

Rapid decolorization and mineralization of congo red using Fe78Si9B13 amorphous alloy by photo fenton-like process

Document Type

Conference Proceeding

School

School of Engineering

Comments

Originally presented as: Jia Z., Li X. F., Liang S. X., Qin P., Habibi D., & Zhang L.C. (2017). Rapid decolorization and mineralization of congo red using Fe78Si9B13 amorphous alloy by photo fenton-like process. In H. Haeri (Ed.). Proceedings of the 4th annual 2016 International Conference on Material Science and Environmental Engineering MSEE2016, 2016, pp. 765-776. Abstract available here.

Abstract

In this work, a multifunctional and novel metallic glass with the nominal atomic percentage of Fe78Si9B13 exhibited advanced catalytic capability for degrading congo red (CR) dye. The Fe78Si9B13 metallic glass was firstly characterized by X-ray diffraction (XRD), UV-vis diffuse reflectance spectrophotometers (UV-vis DRS), scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS). 100% dye degradation was achieved within 20 min using Fe78Si9B13 metallic glass under rational parameter control. The total organic carbon (TOC) removal was reached more than 80% within 60 min. Tertiary butanol was used for the investigation of the production of hydroxyl radicals (•OH), resulting in a sharp decrease of dye color removal. The optimum condition for CR degradation in this work was at pH 3.4, catalyst dosage 0.5 g/L, dye concentration 20 ppm, light intensity 7.7 μW/cm2, H2O2 concentration 1.0 mM. The findings in this work will open a new gate for the metallic glass in wastewater treatment.

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