Highly efficient degradation of acid orange II on a defect-enriched Fe-based nanoporous electrode by the pulsed square-wave method

doi:10.1016/j.jmst.2021.03.041

IMR OpenIR

	Highly efficient degradation of acid orange II on a defect-enriched Fe-based nanoporous electrode by the pulsed square-wave method
	Chi, Yuchen 1; Chen, Feng 1; Wang, Hangning 1; Qin, Fengxiang 1; Zhang, Haifeng 2
通讯作者	Qin, Fengxiang(fengxiangqin@njust.edu.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn)
	2021-11-30
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	92 页码:40-50
摘要	The degradation of acid orange II (AO II) by a nanoporous Fe-Si-B (NP-FeSiB) electrode under the pulsed square-wave potential has been investigated in this research. Defect-enriched NP-FeSiB electrode was fabricated through dealloying of annealed Fe76Si9B15 amorphous ribbons. The results of UV-vis spectra and FTIR indicated that AO II solution was degraded efficiently into unharmful molecules H2O and CO2 on NP-FeSiB electrode within 5 mins under the square-wave potential of +/- 1.5 V. The degradation efficiency of the NP-FeSiB electrode remains 98.9% even after 5-time recycling. The large amount of active surface area of the nanoporous FeSiB electrode with lattice disorders and stacking faults, and alternate electrochemical redox reactions were mainly responsible for the excellent degradation performance of the NP-FeSiB electrode. The electrochemical pulsed square-wave process accelerated the redox of Fe element in Fe-based nanoporous electrode and promoted the generation of hydroxyl radicals (center dot OH) with strong oxidizability as predominant oxidants for the degradation of azo dye molecules, which was not only beneficial to improving the catalytic degradation activity, but also beneficial to enhancing the reusability of the nanoporous electrode. This work provides a highly possibility to efficiently degrade azo dyes and broadens the application fields of nanoporous metals. (C) 2021 Published by Elsevier Ltd on behalf of Chinese Society for Metals.
关键词	Amorphous alloy Nanoporous electrode Defects, Azo dye Electrochemical degradation Pulsed square-wave potential
资助者	Shichangxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Fundamental Research Funds for the Central Uni-versities
DOI	10.1016/j.jmst.2021.03.041
收录类别	SCI
语种	英语
资助项目	Shichangxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences ; National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[51671106] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; Fundamental Research Funds for the Central Uni-versities[30919011404]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000718790900005
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/167351
专题	中国科学院金属研究所
通讯作者	Qin, Fengxiang; Zhang, Haifeng
作者单位	1.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chi, Yuchen,Chen, Feng,Wang, Hangning,et al. Highly efficient degradation of acid orange II on a defect-enriched Fe-based nanoporous electrode by the pulsed square-wave method[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,92:40-50.
APA	Chi, Yuchen,Chen, Feng,Wang, Hangning,Qin, Fengxiang,&Zhang, Haifeng.(2021).Highly efficient degradation of acid orange II on a defect-enriched Fe-based nanoporous electrode by the pulsed square-wave method.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,92,40-50.
MLA	Chi, Yuchen,et al."Highly efficient degradation of acid orange II on a defect-enriched Fe-based nanoporous electrode by the pulsed square-wave method".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 92(2021):40-50.