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

文献类型：期刊论文

作者Zhou, Jian2,3; Zhou, Hongjian1; Zhang, Yingzi2,3; Wu, Jin2,3; Zhang, Haiming1; Wang, Guozhong1; Li, Jiaxing2
刊名CHEMICAL ENGINEERING JOURNAL
出版日期2020-10-15
卷号398
关键词Capacitive deionization Pseudocapacitance Uranium(VI) Nuclear waste Electrosorption
ISSN号1385-8947
DOI10.1016/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.
WOS关键词GRAPHENE OXIDE ; POROUS CARBON ; CAPACITIVE DEIONIZATION ; TUNGSTEN-OXIDE ; ELECTROSORPTION ; BIOMASS ; ENERGY ; WASTE ; DESALINATION ; FABRICATION
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研究方向Engineering
语种英语
WOS记录号WOS:000561574900009
出版者ELSEVIER SCIENCE SA
资助机构National Key R&D Program of China ; National Natural Science Foundation of China
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.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China
3.Univ Sci & Technol China, Hefei 230026, 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).

入库方式： OAI收割

来源：合肥物质科学研究院

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