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Mechanism and kinetics of treatment of acid orange II by aged Fe-Si-B metallic glass powders
Qin, Xindong; Li, Zhengkun; Zhu, Zhengwang; Fu, Huameng; Li, Hong; Wang, Aimin; Zhang, Hongwei; Zhang, Haifeng; Zhu, ZW; Zhang, HF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
2017-10-01
Source PublicationJOURNAL MATER SCI TECHNOL
ISSN1005-0302
Volume33Issue:10Pages:1147-1152
AbstractThe mechanism and kinetics of acid orange II (AOII) treated by aged gas-atomized Fe-Si-B metallic glass (MG) powders were investigated in this study. The decolorization reaction is shown to obey the pseudofirst- order kinetic model, and the treatment processes could be divided into two stages: a slow step followed by a rapid one. This observation is in accordance with the following results, the azo dye is simply adsorbed onto the Fe-based MG powders in the initial stage, because the oxide layer coated on the powder surface depresses the degradation reaction by covering the activity sites, and then the degradation occurs with the desquamation of the powders. The AOII could be degraded with a rapid reaction rate when the Fe-based MG powders are applied to the treatment process again, because of the consumption of the oxide layer and the unchanged core of the Fe-based MGs. These findings will promote the practical application of MGs in degrading azo dyes. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.; The mechanism and kinetics of acid orange II (AOII) treated by aged gas-atomized Fe-Si-B metallic glass (MG) powders were investigated in this study. The decolorization reaction is shown to obey the pseudofirst- order kinetic model, and the treatment processes could be divided into two stages: a slow step followed by a rapid one. This observation is in accordance with the following results, the azo dye is simply adsorbed onto the Fe-based MG powders in the initial stage, because the oxide layer coated on the powder surface depresses the degradation reaction by covering the activity sites, and then the degradation occurs with the desquamation of the powders. The AOII could be degraded with a rapid reaction rate when the Fe-based MG powders are applied to the treatment process again, because of the consumption of the oxide layer and the unchanged core of the Fe-based MGs. These findings will promote the practical application of MGs in degrading azo dyes. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
description.department[qin, xindong ; li, zhengkun ; zhu, zhengwang ; fu, huameng ; li, hong ; wang, aimin ; zhang, hongwei ; zhang, haifeng] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china ; [qin, xindong] univ sci & technol china, sch mat sci & engn, hefei 230026, anhui, peoples r china
KeywordMetallic Glasses Azo Dyes Degradation Kinetics
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51434008, U1435204, 51531005]; Youth Innovation Promotion Association CAS, Science and Technology Planning Project of Guangdong Province, China [2015B090926001, 2015B010122001]; Innovative Talents Planning Project of Jiangsu Province
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79068
Collection中国科学院金属研究所
Corresponding AuthorZhu, ZW; Zhang, HF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Qin, Xindong,Li, Zhengkun,Zhu, Zhengwang,et al. Mechanism and kinetics of treatment of acid orange II by aged Fe-Si-B metallic glass powders[J]. JOURNAL MATER SCI TECHNOL,2017,33(10):1147-1152.
APA Qin, Xindong.,Li, Zhengkun.,Zhu, Zhengwang.,Fu, Huameng.,Li, Hong.,...&Zhang, HF .(2017).Mechanism and kinetics of treatment of acid orange II by aged Fe-Si-B metallic glass powders.JOURNAL MATER SCI TECHNOL,33(10),1147-1152.
MLA Qin, Xindong,et al."Mechanism and kinetics of treatment of acid orange II by aged Fe-Si-B metallic glass powders".JOURNAL MATER SCI TECHNOL 33.10(2017):1147-1152.
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