Degradation mechanism of acid orange II in persulfate/Fe-based metallic glass system

doi:10.1016/j.jpcs.2021.110316

CORC > 金属研究所 > 中国科学院金属研究所

	Degradation mechanism of acid orange II in persulfate/Fe-based metallic glass system
	Li, Hai-long 1,2,4; Zhu, Zheng-wang 1,2; Li, Songtao 1,2; Bao, Shuai 4; Liu, Chun-ming 4; Zhang, Shiming 3; Zhang, Hai-feng 1,2,4
刊名	JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
	2022
卷号	160 页码:8
关键词	Fe-based metallic glass Persulfate Oxidative degradation Acid orange II Degradation mechanism
ISSN号	0022-3697
DOI	10.1016/j.jpcs.2021.110316
通讯作者	Zhu, Zheng-wang(zwzhu@imr.ac.cn)
英文摘要	Fe-based metallic glasses (MGs) not only are an industrially produced amorphous zero-valent iron (AZVI) with a promising reductive degradability to azo dyes but also can activate persulfate (PS) with sulfate radicals (SO4 center dot-, Eo = 2.5-3.1V) for wastewater remediation. In this study, acid orange II (AOII) was rapidly and efficiently decolored by Fe78Si8B14 MG/PS system with a 99% degradation rate in 8 min. Based on monitoring the degradation rate and the concentration of Fe2+/Fe3+, a two-step degradation mechanism is proposed, that one is deductive degradation by AZVI with products of small organic molecules and Fe2+, and the other is oxidative degradation, where AZVI and Fe2+ activate PS with products of SO4 center dot- and center dot OH confirmed by the electron spin resonance (ESR) analysis test. The orthogonal experimental design proves that the effects of the experiment operating parameters on the decolorization efficiency from high to low are Fe-based MGs dosage, PS dosage, and reaction temperature. Meanwhile, the high efficiency of the Fe-based MGs/PS system is also illustrated for the mineralization of AOII by an indication of the TOC removal rate as high as 57%. This work gives new insight into Fe-based MGs for activating PS and will accelerate the application of Fe-based MGs as catalysts in the field of wastewater treatment.
资助项目	National Natural Science Foundation of China[51801209] ; National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[U1738101] ; Liaoning Revitalization Talents Program[XLYC1802078] ; Liaoning Revitalization Talents Program[XLYC1807062] ; fund of Qingdao[19-9-2-1-wz]
WOS研究方向	Chemistry ; Physics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000701812000001
资助机构	National Natural Science Foundation of China ; Liaoning Revitalization Talents Program ; fund of Qingdao
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/166705]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhu, Zheng-wang
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.Qingdao Yunlu Adv Mat Technol Co Ltd, Qingdao 266232, Peoples R China 4.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, Hai-long,Zhu, Zheng-wang,Li, Songtao,et al. Degradation mechanism of acid orange II in persulfate/Fe-based metallic glass system[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2022,160:8.
APA	Li, Hai-long.,Zhu, Zheng-wang.,Li, Songtao.,Bao, Shuai.,Liu, Chun-ming.,...&Zhang, Hai-feng.(2022).Degradation mechanism of acid orange II in persulfate/Fe-based metallic glass system.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,160,8.
MLA	Li, Hai-long,et al."Degradation mechanism of acid orange II in persulfate/Fe-based metallic glass system".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 160(2022):8.