羧化多壁碳纳米管/氧化铜/纳米银改性石墨毡电极的构建及其对UO22+的吸附机理

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-02-05 DOI:10.1007/s10967-025-10001-9

Mengshi Hu, Qian Li, Guangyue Li, Tingting Liu, Xiaowei Zhou, Jing Sun, Zhao Cui, Ting Li

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引用次数: 0

摘要

核燃料循环产生的含铀废水对人类健康和环境构成严重危害。本研究设计了一种羧化多壁碳纳米管/氧化铜/纳米银修饰石墨毡电极（MCA）材料，该材料具有双电层电吸附性能和赝电容特性。电吸附过程证明了吸附U（VI）的能力。MCA-2具有优异的电导率、稳定性和电容特性，去除率最高（93.31%）。在200 mg/L的U（VI）溶液中，吸附量达到361 mg/g。MCA具有良好的循环稳定性和高选择性，是一种潜在的放射性废水处理电极材料。

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Construction of carboxylated multi-walled carbon nanotube/copper oxide/nano silver modified graphite felt electrode and its adsorption mechanism for UO22+

Uranium-containing wastewater from the nuclear fuel cycle poses severe hazards to human health and the environment. In this study, a carboxylated multi-walled carbon nanotube/copper oxide/nano silver modified graphite felt electrode (MCA) material was designed, exhibiting electrosorption performance with electrical double layer and pseudocapacitance characteristics. Electrosorption processes proved the ability to adsorb U(VI). MCA-2 had the highest removal rate (93.31%) due to superior conductivity, stability, and capacitance characteristics. A high adsorption capacity of 361 mg/g was reached in a 200 mg/L U(VI) solution. MCA achieves good cycling stability and high selectivity, making it a potential electrode material for radioactive wastewater treatment.

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.