Superior azo-dye degradation of Fe-Si-B-P amorphous powders with graphene oxide addition

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	Superior azo-dye degradation of Fe-Si-B-P amorphous powders with graphene oxide addition
	Wang, F; Wang, H; Zhang, HF; Dan, ZH; Weng, N; Tang, WY; Qin, FX; Qin, FX (reprint author), Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China.; Tang, WY (reprint author), Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China.
刊名	JOURNAL OF NON-CRYSTALLINE SOLIDS
	2018-07-01
卷号	491 页码:34-42
关键词	Zero-valent Iron Waste-water Treatment Nitrate Reduction Aqueous-solution Methyl-orange Nanoparticles Particles Remediation Reactivity System
ISSN号	0022-3093
英文摘要	Degradation behavior of methyl orange and direct blue 6 azo dyes catalyzed by Fe76Si9B10P5 amorphous powders and graphene oxide (GO) addition composites has been investigated. The results revealed that the Fe76Si9B10P5 amorphous powders are more effective to degrade azo dyes than the commercial Fe powders with the activity energies of 24.2 kJ mol(-1) and 20.4 kJ mol(-1) for the degradation of methyl orange and direct blue 6 azo dye solutions. The addition of GO into the amorphous powders further improves the degradation activity, accompanied with lower activation energies of 18.3 kJ mol(-1) and 16.7 kJ mol(-1). High degradation performance of Fe-Si-B-P amorphous powders was attributed to the amorphous structure in metastable state and the existence of metalloids which are beneficial to the formation of a surface layer with high activity. The addition of GO accelerates the degradation process due to its high surface area and the existence of large number of functional groups.; Degradation behavior of methyl orange and direct blue 6 azo dyes catalyzed by Fe76Si9B10P5 amorphous powders and graphene oxide (GO) addition composites has been investigated. The results revealed that the Fe76Si9B10P5 amorphous powders are more effective to degrade azo dyes than the commercial Fe powders with the activity energies of 24.2 kJ mol(-1) and 20.4 kJ mol(-1) for the degradation of methyl orange and direct blue 6 azo dye solutions. The addition of GO into the amorphous powders further improves the degradation activity, accompanied with lower activation energies of 18.3 kJ mol(-1) and 16.7 kJ mol(-1). High degradation performance of Fe-Si-B-P amorphous powders was attributed to the amorphous structure in metastable state and the existence of metalloids which are beneficial to the formation of a surface layer with high activity. The addition of GO accelerates the degradation process due to its high surface area and the existence of large number of functional groups.
学科主题	Materials Science, Ceramics ; Materials Science, Multidisciplinary
语种	英语
资助机构	Natural Science Foundation of China [51671106]; Natural Science Foundation of Jiangsu Province [BK20171424, BK20151536]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79280]
专题	金属研究所_中国科学院金属研究所
通讯作者	Qin, FX (reprint author), Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China.; Tang, WY (reprint author), Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China.
推荐引用方式 GB/T 7714	Wang, F,Wang, H,Zhang, HF,et al. Superior azo-dye degradation of Fe-Si-B-P amorphous powders with graphene oxide addition[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2018,491:34-42.
APA	Wang, F.,Wang, H.,Zhang, HF.,Dan, ZH.,Weng, N.,...&Tang, WY .(2018).Superior azo-dye degradation of Fe-Si-B-P amorphous powders with graphene oxide addition.JOURNAL OF NON-CRYSTALLINE SOLIDS,491,34-42.
MLA	Wang, F,et al."Superior azo-dye degradation of Fe-Si-B-P amorphous powders with graphene oxide addition".JOURNAL OF NON-CRYSTALLINE SOLIDS 491(2018):34-42.