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	X-ray absorption fine structure study of enhanced sequestration of U(VI) and Se(IV) by montmorillonite decorated with zero-valent iron nanoparticles
	Hu, Baowei1; Ye, Feng1; Ren, Xuemei4; Zhao, Donglin4,5; Sheng, Guodong1,2; Li, Hui1; Ma, Jingyuan3; Wang, Xiangke1,2,6; Huang, Yuying3
刊名	ENVIRONMENTAL SCIENCE-NANO
	2016
卷号	3期号:6页码:1460-1472
DOI	10.1039/c6en00421k
文献子类	Article
英文摘要	Herein, using Na-montmorillonite and Al-montmorillonite as templates, supported NZVI with superior reactivity, namely NZVI/Na-Mont and NZVI/Al-Mont, was synthesized and applied for enhanced sequestration of U(VI) and Se(IV). The results indicated that the negatively charged Na-Mont can effectively adsorb cationic U(VI), while the positively charged Al-Mont can adsorb anionic Se(IV), significantly enhancing the rate and extent of U(VI) and Se(IV) sequestration on NZVI due to the synergistic effect between adsorption and reduction. The inhibition effect of 1,10-phenanthroline demonstrated that surface-adsorbed Fe(II) on corrosion products and clay surfaces played an indispensable role in U(VI) and Se(IV) reduction, which was further confirmed by XPS identification. XANES analysis demonstrated that in the NZVI system, Na-Mont and Al-Mont promote the reductive transformation of U(VI) into U(IV), and Se(IV) into Se(0)/Se(-II), respectively. EXAFS analysis indicated the presence of Al/Si scattering for U(VI)-treated NZVI/Na-Mont and Se(IV)-treated NZVI/Al-Mont samples, revealing that Na-Mont and Al-Mont reacted as a scavenger for insoluble products like UO2 and FeSe, thereby, more reactive sites can be used for U(VI) and Se(IV) reduction. Our results suggested that the distinct structure of modified montmorillonite can be utilized for synthesizing supported NZVI to create properties compatible for enhanced enrichment of radionuclides, displaying potential application in nuclear waste management.
WOS关键词	NANOSCALE ZEROVALENT IRON ; PERMEABLE REACTIVE BARRIER ; LAYERED DOUBLE HYDROXIDE ; SOLID-WATER INTERFACE ; ANOXIC BATCH SYSTEMS ; IN-SITU REMEDIATION ; WEAK MAGNETIC-FIELD ; AQUEOUS-SOLUTION ; CARBON NANOTUBES ; EXAFS TECHNIQUES
WOS研究方向	Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000391423400022
资助机构	National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; National Natural Science Foundation of China(21577093 ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; Natural Science Foundation of Zhejiang Province(LY15B070001) ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21207092 ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005) ; 21377005)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/21986]
专题	合肥物质科学研究院_中科院等离子体物理研究所
作者单位	1.Shaoxing Univ, Coll Chem & Chem Engn, Coll Life Sci, Coll Med Sci, Shaoxing 312000, Zhejiang, Peoples R China 2.North China Elect Power Univ, Sch Chem & Environm, Beijing 102206, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, SSRF, Shanghai 201204, Peoples R China 4.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China 5.Anhui Univ Architecture, Sch Mat & Chem Engn, Hefei 230601, Peoples R China 6.King Abdulaziz Univ, Fac Sci, NAAM Res Grp, Jeddah 21589, Saudi Arabia
推荐引用方式 GB/T 7714	Hu, Baowei,Ye, Feng,Ren, Xuemei,et al. X-ray absorption fine structure study of enhanced sequestration of U(VI) and Se(IV) by montmorillonite decorated with zero-valent iron nanoparticles[J]. ENVIRONMENTAL SCIENCE-NANO,2016,3(6):1460-1472.
APA	Hu, Baowei.,Ye, Feng.,Ren, Xuemei.,Zhao, Donglin.,Sheng, Guodong.,...&Huang, Yuying.(2016).X-ray absorption fine structure study of enhanced sequestration of U(VI) and Se(IV) by montmorillonite decorated with zero-valent iron nanoparticles.ENVIRONMENTAL SCIENCE-NANO,3(6),1460-1472.
MLA	Hu, Baowei,et al."X-ray absorption fine structure study of enhanced sequestration of U(VI) and Se(IV) by montmorillonite decorated with zero-valent iron nanoparticles".ENVIRONMENTAL SCIENCE-NANO 3.6(2016):1460-1472.

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