Retention of U(VI) by the Formation of Fe Precipitates from Oxidation of Fe(II)

doi:10.1021/acsearthspacechem.8b00055

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	Retention of U(VI) by the Formation of Fe Precipitates from Oxidation of Fe(II)
	Mei, Huiyang 1,2; Tan, Xiaoli 1,2; Tan, Liqiang 2; Meng, Yuedong 1; Chen, Changlun 1; Fang, Ming 2; Wang, Xiangke 2,3
刊名	ACS EARTH AND SPACE CHEMISTRY
	2018-10-01
卷号	2 期号:10 页码:968-976
关键词	U(VI) Fe(II) Fe precipitate oxidation incorporation
ISSN号	2472-3452
DOI	10.1021/acsearthspacechem.8b00055
通讯作者	Tan, Xiaoli(tanxl@ipp.ac.cn) ; Fang, Ming(mfang@ncepu.edu.cn)
英文摘要	The fate of radionuclide contaminants can be strongly affected by the Fe(II) oxidation process at natural redox boundaries because the formative Fe precipitates may serve as scavengers for radionuclides. In this regard, we investigated the retention efficiency of U(VI) by the formative Fe precipitates in dilute FeCl2 solutions under mild oxidative conditions. The formed precipitates were characterized using spectroscopic methods. The results identified that the presence of U(VI) facilitated the formation of Fe precipitates as lepidocrocite. The high retention efficiency of U(VI) through co-precipitated reaction is ascribed to the synergetic effect of incorporation and adsorption processes. The successive acid-washing experiments, energy-dispersive X-ray spectra, and excitation-emission matrix spectra revealed that adsorbed U was washed off, while incorporated U was still in the precipitates. As a redox-active trace element, U incorporated into the solids could be in the state of U(V) or U(VI) as analyzed from X-ray photoelectron spectroscopy. These results may be of value in evaluating the potential of permanent retention of a trace element through redox and precipitation of iron oxides.
资助项目	National Natural Science Foundation of China[U1607102] ; National Natural Science Foundation of China[11675210] ; Science Challenge Project[TZ2016004] ; Fundamental Research Funds for the Central Universities[2018ZD11] ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions
WOS关键词	LEPIDOCROCITE GAMMA-FEOOH ; XPS SPECTRA ; PENTAVALENT-URANIUM ; CARBON NANOTUBES ; HUMIC-ACID ; IRON ; REDUCTION ; SORPTION ; WATER ; COPRECIPITATION
WOS研究方向	Chemistry ; Geochemistry & Geophysics
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000448087400002
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Science Challenge Project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/39864]
专题	合肥物质科学研究院_中科院等离子体物理研究所
通讯作者	Tan, Xiaoli; Fang, Ming
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, CAS Key Lab Photovolta & Energy Conservat Mat, POB 1126, Hefei 230031, Anhui, Peoples R China 2.North China Elect Power Univ, Sch Environm & Chem Engn, Beijing 102206, Peoples R China 3.Jiangsu Higher Educ Inst, Collaborat Innovat Ctr Radiat Med, Suzhou 215123, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Mei, Huiyang,Tan, Xiaoli,Tan, Liqiang,et al. Retention of U(VI) by the Formation of Fe Precipitates from Oxidation of Fe(II)[J]. ACS EARTH AND SPACE CHEMISTRY,2018,2(10):968-976.
APA	Mei, Huiyang.,Tan, Xiaoli.,Tan, Liqiang.,Meng, Yuedong.,Chen, Changlun.,...&Wang, Xiangke.(2018).Retention of U(VI) by the Formation of Fe Precipitates from Oxidation of Fe(II).ACS EARTH AND SPACE CHEMISTRY,2(10),968-976.
MLA	Mei, Huiyang,et al."Retention of U(VI) by the Formation of Fe Precipitates from Oxidation of Fe(II)".ACS EARTH AND SPACE CHEMISTRY 2.10(2018):968-976.