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Degradation mechanism of acid orange II in persulfate/Fe-based metallic glass system
Li, Hai-long1,2,3; Zhu, Zheng-wang2,3; Li, Songtao2,3; Bao, Shuai1; Liu, Chun-ming1; Zhang, Shiming4; Zhang, Hai-feng1,2,3
Corresponding AuthorZhu, Zheng-wang(zwzhu@imr.ac.cn)
2022
Source PublicationJOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN0022-3697
Volume160Pages:8
AbstractFe-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.
KeywordFe-based metallic glass Persulfate Oxidative degradation Acid orange II Degradation mechanism
Funding OrganizationNational Natural Science Foundation of China ; Liaoning Revitalization Talents Program ; fund of Qingdao
DOI10.1016/j.jpcs.2021.110316
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaChemistry ; Physics
WOS SubjectChemistry, Multidisciplinary ; Physics, Condensed Matter
WOS IDWOS:000701812000001
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166707
Collection中国科学院金属研究所
Corresponding AuthorZhu, Zheng-wang
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
4.Qingdao Yunlu Adv Mat Technol Co Ltd, Qingdao 266232, Peoples R China
Recommended Citation
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.
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