Highly efficient catalytic performance and self-renewing behavior of Fe-based glass induced by pulsed laser

Qi Chen ¹Haoxiang Di ²Zhigang Qi ¹Zhaoxuan Wang ¹Ziqi Song ¹Lai-Chang Zhang ³Lingyu Guo ⁴Weimin Wang¹

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作者信息

1. Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education),School of Materials Science and Engineering,Shandong University,Jinan 250061,China
2. School of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 529599,China
3. Centre for Advanced Materials and Manufacturing,School of Engineering Edith Cowan University,Joondalup WA6027,Australia
4. School of Transportation and Logistics Engineering,Wuhan University of Technology,Wuhan 430063,China
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Abstract

FeSiB metallic glass using pulsed laser processing is proved to show excellent catalytic performance in wastewater treatment for the first time by decolorizing and mineralizing reactive red 195.Pulsed laser can effectively improve the thermodynamic properties,surface photothermal conversion and hydrophilic-ity of catalyst.Compared with homogeneous FeSiB catalyst,heterogeneity a-Fe/FeSiB exhibits a high k value,strong TOC removal rate and low activation energy.Theoretical calculations indicate that the ex-cellent catalytic performance of heterogeneity catalyst is attributed to its unique nanoscale biphasic dis-order structure,resulting the energy barrier of the rate-determining-steps of the conversion of S2O82-to SO4-·is reduced from 2.20 to 1.52 eV.The reusability test of heterogeneity catalyst also shows that the abnormal recovery phenomenon of decolorization efficiency at the 19th cycle owing to its unique self-renewing.This study reveals that a nanoscale biphasic disorder structure is a new strategy for obtaining high catalytic rate and durability.

Key words

FeSiB glass/Pulsed laser/Nanoscale heterogeneity/Energy barrier

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基金项目

key research and development program of China(2022YFB2404102)

National Natural Science Foundation of China(51971093)

National Natural Science Foundation of China(52171158)

National Natural Science Foundation of China(52101196)

Open Project Program of Shandong Marine Aerospace Equipment Technological Innovation Center(Ludong University)(MAETIC2021-11)

key research and development program of Shandong Province(2021ZLGX01)

key research and development program of Shandong Province(2022CXGC020308)

key research and development program of Shandong Province(2023CXGC010308)

出版年

2024

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCD

影响因子：0.657

ISSN：1005-0302

参考文献量62

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