Mechanism of enhanced catalytic properties of FeCoCrMoCBY amorphous alloys by ultrasonic induction

IF 4.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Intermetallics Pub Date : 2025-05-01 DOI:10.1016/j.intermet.2025.108806

Wangpeng Qiu , Qingjun Chen , Li Ji , Guosheng Huang

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引用次数: 0

Abstract

In this paper, the effect of ultrasonic field on the catalytic performance of Fe₄₁Co₇Cr₁₅Mo₁₄C₁₅B₆Y₂ amorphous alloy powder on Direct Yellow 120 (DR 120) and Direct Red 31(DR 31) mixed dyes was studied. The ultrasonic power has a significant effect on the catalytic degradation of mixed dyes, and the degradation efficiency of mixed dyes begins to increase only when the ultrasonic power is increased to 100 W. At 150 W, the electron work function (EWF) of the catalyst decreases from the original 6.05 eV–5.34 eV, at which time the electrons on the alloy surface are completely released and the degradation efficiency of mixed dyes reaches the maximum value. At the same time, the precipitation of (Fe, Cr)₂₃C₆ and Cr₂₃C₆ phases during the reaction facilitated the conversion of Cr⁰ to Cr³⁺, accelerated the destruction of C=O and O-H bonds on the surface of MGs, resulting in the increase of Fe²⁺ content on the surface of MGs, thus promoting the formation of •OH. This study provides a promising method for the catalytic degradation of azo dyes.

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超声感应增强FeCoCrMoCBY非晶合金催化性能的机理

本文研究了超声场对Fe41Co7Cr15Mo14C15B6Y2非晶合金粉末对直接黄120 （DR 120）和直接红31（DR 31）混合染料催化性能的影响。超声波功率对混合染料的催化降解效果显著，只有当超声波功率增加到100 W时，混合染料的降解效率才开始提高。在150w时，催化剂的电子功函数（EWF）由原来的6.05 eV下降到5.34 eV，此时合金表面的电子完全释放，混合染料的降解效率达到最大值。同时，反应过程中（Fe, Cr）23C6和Cr23C6相的析出促进了Cr0向Cr3+的转化，加速了mg表面C=O和O- h键的破坏，导致mg表面Fe2+含量增加，从而促进了•OH的形成。该研究为偶氮染料的催化降解提供了一种很有前景的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Intermetallics 工程技术-材料科学：综合

CiteScore

7.80

自引率

9.10%

发文量

291

审稿时长

37 days

期刊介绍： This journal is a platform for publishing innovative research and overviews for advancing our understanding of the structure, property, and functionality of complex metallic alloys, including intermetallics, metallic glasses, and high entropy alloys. The journal reports the science and engineering of metallic materials in the following aspects: Theories and experiments which address the relationship between property and structure in all length scales. Physical modeling and numerical simulations which provide a comprehensive understanding of experimental observations. Stimulated methodologies to characterize the structure and chemistry of materials that correlate the properties. Technological applications resulting from the understanding of property-structure relationship in materials. Novel and cutting-edge results warranting rapid communication. The journal also publishes special issues on selected topics and overviews by invitation only.