期刊论文

Enrichment of Uranium from Aqueous Solutions with Nanoscale Zero-valent Iron: Surface Chemistry and Application Prospect

Zhang, W.-X.;Yang, J.

中文

化学学报

0567-7351

2021

79

8

1008-1022

10.6023/A21040160

* E-mail: jianpingyang@dhu.edu.cn; zhangwx@tongji.edu.cn Received April 18, 2021; published June 29, 2021. Project supported by the National Natural Science Foundation of China (Nos. 41772243, 51978488 and 21277102), the Research Foundation of Education Bureau of Hunan Province, China (No. 18C0432), the Natural Science Foundation of Hunan Province, China (No. 2020JJ5489) and the Key-Area Research and Development Program of Guangdong Province (No. 2020B0202080001). 项目受国家自然科学基金(Nos. 41772243, 51978488, 21277102)、湖南省教育厅基金(No. 18C0432)、湖南省自然科学基金(No. 2020JJ5489)和广东省重 点领域研发计划项目(No. 2020B0202080001)资助.

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由于铀矿采冶、核能利用等类活动的影响,铀引起的水体污染问题日益严重.纳米零价铁（nanoscalezero-valent iron,n ZVI）及其复合材料可高效富集水溶液中低浓度的铀,在放射性废水的处理与铀的资源回收方面具有巨大的应用潜力.但是,不同研究对n ZVI分离铀的机理和性能尚未形成一致的解释.因此,本综述归纳了n ZVI分离铀的研究进展,概括了溶液及固相反应机理（如吸附作用、还原作用、沉淀作用）,重点分析了水质因素（如pH、U（VI）浓度、阳离子、阴离子、溶解氧）的影响机制.后续研究可注重分析铀废水中n ZVI的结构转化规律及水质因素的协同作用对n ZVI固定铀的机理、性能的影响;并基于放射性废水的...

In the processes of uranium mining and nuclear power utilization, water pollution caused by radioactive contaminants (e.g., uranium) is becoming increasingly serious. Nanoscale zero-valent iron (nZVI) and its composites can be used to enrich low-concentrated uranium ions from radioactive wastewater effectively. Published works have demonstrated that nZVI has great application potential to treat uranium-contanined radioactive wastewater. However, published researches on the performance and mechanisms for U(VI) immobilization by nZVI between different papers are not unanimous. Based on the resea...