Three-dimensional graphene materials for UO22+ electrosorption

被引：41
|
作者：
Wu, Xiandong [1 ]
Li, Kaiwen [1 ]
Ying, Sujunheng [1 ]
Liu, Li [1 ]
Wang, Meng [1 ]
Liao, Yun [1 ]
机构：
[1] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2019年 / 321卷 / 03期
基金：
国家重点研发计划;
关键词：
Capacitive deionization; Three-dimensional graphene; Electrode materials; Uranium; Electrosorption; CAPACITIVE DEIONIZATION; OXIDE NANOSHEETS; ADSORPTION; URANIUM; IONS; CONSTRUCTION; EXTRACTION; FRAMEWORKS; AEROGEL; CDI;
D O I：
10.1007/s10967-019-06650-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this paper, three-dimensional graphene (3DG) electrode material was prepared by hydrothermal reduction using graphene oxide as precursor. Its morphology and structure were characterized by SEM, BET, XRD, Raman, FTIR and TG, and its electrochemical performance was also measured. The results showed that 3DG possessed hierarchical pore structure, large specific surface area, high specific capacitance and low impedance. Using 3DG as electrode material for electrosorption of UO22+, it showed that the saturated adsorption capacity can reach up to 113.80 mg g(-1) and the adsorption rate is 0.32 mg g(-1) min(-1) at a given optimal applied voltage of 1.8 V.
引用
收藏
页码：977 / 984
页数：8
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