Highly selective capacitive deionization of copper ions in FeS2@N, S co-doped carbon electrode from wastewater

doi:10.1016/j.seppur.2021.118336

	Highly selective capacitive deionization of copper ions in FeS2@N, S co-doped carbon electrode from wastewater
	Gao, Yong 1,2; Li, Zhaolei 2; Fu, Zhen 1; Zhang, Haimin 1; Wang, Guozhong 1; Zhou, Hongjian 1
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2021-05-01
卷号	262
关键词	Capacitive deionization Heavy metal ions Electrosorption Faradic electrode Selective adsorption
ISSN号	1383-5866
DOI	10.1016/j.seppur.2021.118336
通讯作者	Li, Zhaolei(zlli@just.edu.cn) ; Zhou, Hongjian(hjzhou@issp.ac.cn)
英文摘要	Capacitive deionization (CDI) as a promising water treatment technique aroused great concern for selective electrosorption of heavy metal ions from complex wastewater. Here, for the first time, we developed FeS2@N, S co-doped carbon (FeS2@NSC) composites as a novel electrode material for high-efficiency selective electrosorption of Cu2+ ion under various cations coexistence system. On account of the synergistic effect of electric double layers and pseudocapacitance of FeS2@NSC electrode, the superior electrosorption performance of 508.5 mg.g(-1) and high coefficient of selectivity (Cu2+/Na+) of 71.6 at molar ratio of 1:10 for Cu2+ ion were achieved at 1.0 V. Significantly, the FeS2@NSC electrode had obvious Cu2+ ion selective electrosorption behavior in mixed ions environment including Cu2+, Pb2+, Cd2+, Zn2+, Co2+ and Mn2+ ions. Finally, the ex-situ XRD and XPS characterization demonstrated that the highly selective electrosorption of Cu2+ ion in FeS2@NSC was dominated by the Faradic redox reaction of the Fe2+/Fe3+ and Cu2+/Cu+ couples. The selective electrosorption performance of FeS2@NSC electrode was also confirmed by treatment of real copper-containing electroplating wastewater.
资助项目	National Key R&D Program of China[2017YFA0207202] ; National Natural Science Foundation of China[51872291] ; National Natural Science Foundation of China[51903111] ; National Natural Science Foundation of China[51502296]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000645138000018
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/121786]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Zhaolei; Zhou, Hongjian
作者单位	1.Chinese Acad Sci, Ctr Environm & Energy Nanomat, Inst Solid State Phys, Key Lab Mat Phys,Anhui Key Lab Nanomat & Nanotech, Hefei 230031, Peoples R China 2.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Dept Polymer Mat, Zhenjiang 212003, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Gao, Yong,Li, Zhaolei,Fu, Zhen,et al. Highly selective capacitive deionization of copper ions in FeS2@N, S co-doped carbon electrode from wastewater[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2021,262.
APA	Gao, Yong,Li, Zhaolei,Fu, Zhen,Zhang, Haimin,Wang, Guozhong,&Zhou, Hongjian.(2021).Highly selective capacitive deionization of copper ions in FeS2@N, S co-doped carbon electrode from wastewater.SEPARATION AND PURIFICATION TECHNOLOGY,262.
MLA	Gao, Yong,et al."Highly selective capacitive deionization of copper ions in FeS2@N, S co-doped carbon electrode from wastewater".SEPARATION AND PURIFICATION TECHNOLOGY 262(2021).