Research on the Degradation Performance of Azo Dyes for MoFe-based Amorphous Alloy Wires
Mo-based amorphous alloys show excellent degradation performance and thermal stabili-ty in the field of dye wastewater degradation,and have efficient catalytic reactivity over a wide pH range.This paper successfully prepared novel MoFe-based(Mo51Co17Fe17B15 and Mo51Fe34B15)amor-phous alloy wires using the melt-spinning method.This further enhanced the catalytic activity of Mo-based amorphous alloys in extremely acidic media,and investigated the degradation performance of the two amorphous wire materials towards crystal violet solution and its reaction mechanism.The results show that Mo51Co17Fe17B15 and Mo51Fe34B15 amorphous alloy wires can completely degrade crystal violet solution with pH 2～9.The degradation efficiency of Mo51Fe34B15 is higher than that of Mo51Co17Fe17B15,and the time required for the former to reach the same degradation degree is only 1/2 of the latter.In ad-dition,the Mo51Fe34B15 amorphous alloy wires have a higher self-corrosion potential and lower corrosion current density,superior corrosion resistance and a higher surface Fe2+content,which is conducive to providing a large number of electron transfer basis for the catalytic degradation process.The suitable corrosion behavior and faster electron transfer ability are the key reasons for its superior degradation performance.
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