Pseudocapacitive deionization of uranium(VI) with WO3/C electrode

doi:10.1016/j.cej.2020.125460

	Pseudocapacitive deionization of uranium(VI) with WO3/C electrode
	Zhou, Jian 2,3; Zhou, Hongjian 1; Zhang, Yingzi 2,3; Wu, Jin 2,3; Zhang, Haiming 1; Wang, Guozhong 1; Li, Jiaxing 3
刊名	CHEMICAL ENGINEERING JOURNAL
	2020-10-15
卷号	398
关键词	Capacitive deionization Pseudocapacitance Uranium(VI) Nuclear waste Electrosorption
ISSN号	1385-8947
DOI	10.1016/j.cej.2020.125460
通讯作者	Zhou, Hongjian(hjzhou@issp.ac.cn) ; Li, Jiaxing(lijx@ipp.ac.cn)
英文摘要	Decontamination and recovery of uranium(VI) [U(VI)] from radioactive wastewater is vital to sustainable nuclear power production and reclamation of radioactive waste. As a promising technology of water treatment, capacitive deionization for adsorption of U(VI) started to attract attention. Herein, for the first time, a floriform WO3/C composite was developed as a pseudocapacitive electrode material for electrosorption of U(VI) from water. The as-prepared WO3/C composite was constructed from dozens of 2D nanosheets with a thin amorphous carbon layer, resulting in uniform flower-like particles with hierarchical nanostructure and superior open pore network. The charge/discharge process of WO3/C was demonstrated as prominent capacitive controlled behavior by quantization of capacitance contributions. As a result, the WO3/C electrodes achieved a maximum U(VI) electrosorption capacity of 449.9 mg g(-1) at 1.2 V and good cycling stability after consecutive adsorption-desorption, which is superior to the conventional physical adsorption processes. The superior CDI performance of the WO3/C electrode is credited to the synergistic effect of EDLs and pseudocapacitance based on the combination of WO3 and carbon layer with hierarchical nanostructure. Overall, the facile preparation strategy, the superior electrosorption performances, and the high cycling stability, endow the floriform WO3/C electrodes to be a promising electrode material for electrosorption of U(VI) from wastewater.
资助项目	National Key R&D Program of China[2017YFA0207202] ; National Natural Science Foundation of China[21876178] ; National Natural Science Foundation of China[21677146] ; National Natural Science Foundation of China[51872291] ; National Natural Science Foundation of China[51872292]
WOS关键词	GRAPHENE OXIDE ; POROUS CARBON ; CAPACITIVE DEIONIZATION ; TUNGSTEN-OXIDE ; ELECTROSORPTION ; BIOMASS ; ENERGY ; WASTE ; DESALINATION ; FABRICATION
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000561574900009
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/334002/70633]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhou, Hongjian; Li, Jiaxing
作者单位	1.Chinese Acad Sci, Ctr Environm & Energy Nanomat, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys,Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Jian,Zhou, Hongjian,Zhang, Yingzi,et al. Pseudocapacitive deionization of uranium(VI) with WO3/C electrode[J]. CHEMICAL ENGINEERING JOURNAL,2020,398.
APA	Zhou, Jian.,Zhou, Hongjian.,Zhang, Yingzi.,Wu, Jin.,Zhang, Haiming.,...&Li, Jiaxing.(2020).Pseudocapacitive deionization of uranium(VI) with WO3/C electrode.CHEMICAL ENGINEERING JOURNAL,398.
MLA	Zhou, Jian,et al."Pseudocapacitive deionization of uranium(VI) with WO3/C electrode".CHEMICAL ENGINEERING JOURNAL 398(2020).