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Enhanced degradation performance of Fe75B12.5Si12.5 amorphous alloys on azo dye

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Abstract

The Fe75B12.5Si12.5 and Fe75B12.5C12.5 amorphous alloy ribbons were prepared by the melt spinning method. The decolorization performances of these ribbons were investigated in details. It is found that the Fe75B12.5C12.5 amorphous ribbons and Fe75B12.5Si12.5 annealed ribbons only adsorbed the azo dye molecules, with no chemical degradation process. However, the Fe75B12.5Si12.5 amorphous ribbons can reduce -N = N- to -NH2 because of their high reactivity and the local galvanic effect that occurred during the reaction to accelerate electron transfer. The reaction rate constant kobs is 0.0872 min−1, 0.0474 min−1, and 0.0064 min−1 for Fe75B12.5Si12.5 amorphous ribbons, Fe75B12.5C12.5 amorphous ribbons, and Fe75B12.5Si12.5 annealed ribbons in the same condition, respectively. Fe75B12.5Si12.5 amorphous ribbons can effectively degrade Acid Orange II (AO II) azo dyes and achieve decolorization by breaking azo bonds in the dye in a short time, indicating the prominent capacity of Fe75B12.5Si12.5 ribbons on the degradation of AO II. Furthermore, the influence of chemical factors such as ribbons thickness, reaction temperature, initial pH, and AO II concentration of the solution on the reaction rate constant kobs of Fe75B12.5Si12.5 amorphous ribbons had also been studied. The kobs can reach 0.177 min−1 under optimal conditions. In addition, all the degradation processes in this work were fitted well with the pseudo-first-order kinetic model. The results are guidance for the practical applications, and they have important implications in developing Fe-based amorphous alloys for functional application materials in the field of wastewater treatment.

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Funding

This study was supported by the Guangdong Provincial Science and Technology Program (Grant No. 2020A1414010135), Natural Science Foundation of Guangdong Province (No. 2020A1515010736, 2021A1515010451).

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Conceptualization, resources, and funding acquisition: Dechang Zeng, Zhigang Zheng, and Zhaoguo Qiu; experiment, writing, and editing: Lin Zhao and Lei Huang; conceptualization and experiment guidance: Jing Wei; supervision and proofreading of the article: Zhigang Zheng. All the authors have read and agreed to the published version of the manuscript.

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Correspondence to Zhigang Zheng.

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The authors declare the following financial interests/personal relationships which may be considered potential competing interests: Zhigang Zheng reports financial support provided by Yunfu Science and Technology Bureau. Dechang Zeng reports financial support provided by Natural Science Foundation of Guangdong Province.

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Responsible editor: George Z. Kyzas

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Zhao, L., Huang, L., Zheng, Z. et al. Enhanced degradation performance of Fe75B12.5Si12.5 amorphous alloys on azo dye. Environ Sci Pollut Res 30, 34428–34439 (2023). https://doi.org/10.1007/s11356-022-24512-5

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  • DOI: https://doi.org/10.1007/s11356-022-24512-5

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