Title

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

Document Type

Conference Proceeding

Publication Title

Materials in Environmental Engineering

Publisher

De Gruyter

School

School of Engineering

RAS ID

27090

Comments

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 Materials in Environmental Engineering (pp. 765-776). De Gruyter. 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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