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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
发表期刊JOURNAL MATER SCI TECHNOL
ISSN1005-0302
卷号33期号:10页码:1147-1152
摘要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.; 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.
部门归属[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
关键词Metallic Glasses Azo Dyes Degradation Kinetics
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者National 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
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79068
专题中国科学院金属研究所
通讯作者Zhu, ZW; Zhang, HF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
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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