材料研究学报2024,Vol.38Issue(11) :837-848.DOI:10.11901/1005.3093.2024.176

Mo-Fe基非晶合金丝材对偶氮染料的降解性能

Research on the Degradation Performance of Azo Dyes for MoFe-based Amorphous Alloy Wires

贺旺 陈亚楠 唐梅芳 高文郡 苏辰 郭胜锋
材料研究学报2024,Vol.38Issue(11) :837-848.DOI:10.11901/1005.3093.2024.176

Mo-Fe基非晶合金丝材对偶氮染料的降解性能

Research on the Degradation Performance of Azo Dyes for MoFe-based Amorphous Alloy Wires

贺旺 1陈亚楠 1唐梅芳 1高文郡 1苏辰 1郭胜锋1
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作者信息

  • 1. 西南大学材料与能源学院 重庆 400715
  • 折叠

摘要

用熔融纺丝法制备Mo-Fe基(Mo51Co17Fe17B15和Mo51Fe34B15)非晶合金丝材,研究了这两种非晶丝材对结晶紫溶液的降解性能及其机理.结果表明,Mo51Co17Fe17B15和Mo51Fe34B15非晶合金丝材能彻底降解pH值为2~9的结晶紫溶液.Mo51Fe34B15的降解效率比Mo51Co17Fe17B15的高,为了达到相同的降解效率前者所需时间为后者的二分之一.与Mo51Co17Fe17B15丝材相比,Mo51Fe34B15非晶合金丝材的自腐蚀电位较高、腐蚀电流密度较低.这两种丝材优异的耐腐蚀性能和表面较高的Fe2+含量,有利于为催化降解提供大量的电子转移基础,适宜的耐腐蚀性能和较高的电子转移性能是其具有优异降解性能的关键原因.

Abstract

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.

关键词

金属材料/钼基非晶合金/非晶丝材/染料废水/催化降解

Key words

metallic materials/Mo-based amorphous alloy/amorphous alloy wires/dye wastewater/catalytic degradation

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出版年

2024
材料研究学报
国家自然科学基金委员会 中国材料研究学会

材料研究学报

CSTPCD北大核心
影响因子:0.605
ISSN:1005-3093
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