Mechanism and kinetics of treatment of acid orange II by aged Fe-Si-B metallic glass powders

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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
ISSN	1005-0302
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
WOS记录号	WOS:000414224600011
引用统计	被引频次：26[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/321006/79068
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.