Uranium (VI) removal from aqueous solution using iron-carbon micro-electrolysis packing
Uranium (VI) removal from aqueous solution using iron-carbon micro-electrolysis packing
复制标题
使用铁碳微电解填料从水溶液中去除铀 (VI)
DOI：
10.1016/j.seppur.2019.116104
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发表时间：
2020-03
影响因子：
8.6
通讯作者：
Yong Liu
中科院分区：
文献类型：
--
作者：
Xiaoyan Wu;Chunxue Lv;Shoufu Yu;Mi Li;Jian Ye;Xiaowen Zhang;Yong Liu
铁基材料因其优异的处理污染物的能力而在水处理领域备受关注。采用自制铁炭微电解填料处理含铀废水。考察了IMP用量、溶液初始pH值和U（VI）初始浓度对反应的影响。在最佳条件下进行了材料吸附性能的比较和反复脱附实验。通过扫描电镜（SEM）、X射线能谱（EDS）、傅立叶变换红外光谱（FTIR）、X射线衍射（XRD）、X射线光电子能谱（XPS）和穆斯堡尔谱（MS）等表征手段，研究了IMP吸附前后表面性质的变化，揭示了IMP处理UBW的机理。研究结果表明，IMP适合在酸性条件下（pH < 5）处理低浓度的UBW。扫描电镜结果表明，铀以细小的颗粒形式沉积在IMP表面。IMP将U（VI）还原为U（IV）是去除铀的最重要原因。IMP处理UBW具有快速、高效、持久等优点。因此，IMP可以被认为是一种积极的材料，从UBW中去除铀。
Iron-based materials have attracted much attention in water treatment because of excellent ability to treat pollutants. In this study, self-made iron-carbon micro-electrolysis packing (IMP) was introduced to treat uranium-bearing wastewater (UBW). The effects of the IMP dosage, initial pH of solution and initial U(VI) concentration was investigated. The comparison of material adsorption performance and repeated desorption experiments were also accomplished under the optimum conditions. The mechanism of treating UBW by IMP was revealed by studying the change of IMP's surface properties characterized before and after adsorption by Scanning Electron Microscope (SEM), Energy-Dispersive X-ray Spectroscopy (EDS), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Mossbauer spectra (MS). Research results demonstrated that IMP is suitable for the treatment of UBW with low concentration at acid condition (pH < 5). SEM results indicated that uranium was deposited on the surface of IMP in the form of tidy fine particles. The most important reason for uranium removal was determined as the reduction of soluble U(VI) to insoluble U(IV) by IMP. The advantages of IMP for UBW treatment were verified with rapidity, high efficiency, and durability. Therefore, IMP could be considered as a positive material for uranium removal from UBW.
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DOI：
10.1039/c7en00024c
发表时间：
2017-06
期刊：
Environmental science. Nano
影响因子：
--
作者：
Sergey Tsarev;Richard N. Collins;E. Ilton;A. Fahy;T. Waite
通讯作者：
Sergey Tsarev;Richard N. Collins;E. Ilton;A. Fahy;T. Waite
DOI：
--
发表时间：
1995-02
期刊：
--
影响因子：
--
作者：
J. Moulder;J. Chastain;R. C. King
通讯作者：
J. Moulder;J. Chastain;R. C. King
影响因子：
2.2
作者：
Kathren, Ronald L.;Burklin, Richard K.
通讯作者：
Burklin, Richard K.
DOI：
10.1023/a:1006734100499
发表时间：
2001-01-01
期刊：
JOURNAL OF MATERIALS SCIENCE LETTERS
影响因子：
--
作者：
Binner, J;Zhang, Y
通讯作者：
Zhang, Y
影响因子：
6.6
作者：
Xiaoyan Wu;Xiaoliang Zhou;Yu Tian;Xiaowei Kong;Jun Zhang;Wei Zuo;Xuesong Ye
通讯作者：
Xiaoyan Wu;Xiaoliang Zhou;Yu Tian;Xiaowei Kong;Jun Zhang;Wei Zuo;Xuesong Ye