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Enhanced immobilization of ReO4- by nanoscale zerovalent iron supported on layered double hydroxide via an advanced XAFS approach: Implications for TcO4- sequestration

文献类型：期刊论文

作者Sheng, Guodong1,2; Tang, Yanna1; Linghu, Wensheng1; Wang, Lijun1; Li, Jiaxing4; Li, Hui1; Wang, Xiangke1,2; Huang, Yuying3
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
出版日期2016-09-05
卷号192期号:无页码:268-276
关键词Layered Double Hydroxide Nanoscale Zero Valent Iron Enhanced Immobilization Re(Vii) Support Effect
DOI10.1016/j.apcatb.2016.04.001
文献子类Article
英文摘要This paper was concentrated on a promising remediation strategy for the reductive immobilization of Tc(VII) by studying its chemical analogue Re(VII) to ease the experimental conditions. A novel composite namely nanoscale zero-valent iron supported on layered double hydroxide (NZVI/LDH) was synthesized and applied for the reductive immobilization of Re(VII). Compared to bare NZVI, the as-synthesized NZVI/LDH exhibited higher efficiency on Re(VII) immobilization due to the good synergistic effect between adsorption and reduction. The precise role of LDH was revealed in detail using an advanced approach. The phrase and morphology analysis indicates that NZVI was uniformly supported on LDH, which apparently reduces the aggregation of NZVI and increases its reactivity. Fe-57 Mossbauer spectra suggest that NZVI/LDH displayed a good anti-oxidation performance, leading to the enhanced stability during reaction. X-ray absorption fine structure (XAFS) results show that LDH could promote complete reduction of Re(VII) into Re(IV) by NZVI, while sorption and reduction occurred simultaneously on bare NZVI. Moreover, LDH not only acts as a pH buffering agents but also as a scavenger for the coexisting anions and sparingly soluble products, which improves the reactivity of NZVI. The excellent immobilization performance of NZVI/LDH provides a promising strategy for decontamination of Tc(VII) from groundwater. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词ZERO-VALENT IRON ; HUMIC SUBSTANCE INTERACTION ; WEAK MAGNETIC-FIELD ; AQUEOUS-SOLUTION ; CR(VI) REMOVAL ; COMBINED BATCH ; WASTE-WATER ; PILLARED BENTONITE ; CARBON NANOTUBES ; ARSENITE REMOVAL
WOS研究方向Chemistry ; Engineering
语种英语
WOS记录号WOS:000375887500030
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) ; 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)
源URL[http://ir.hfcas.ac.cn/handle/334002/21437]  
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 Med Sci, Coll Chem & Chem Engn, 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
推荐引用方式
GB/T 7714		 Sheng, Guodong,Tang, Yanna,Linghu, Wensheng,et al. Enhanced immobilization of ReO4- by nanoscale zerovalent iron supported on layered double hydroxide via an advanced XAFS approach: Implications for TcO4- sequestration[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2016,192(无):268-276.
APA Sheng, Guodong.,Tang, Yanna.,Linghu, Wensheng.,Wang, Lijun.,Li, Jiaxing.,...&Huang, Yuying.(2016).Enhanced immobilization of ReO4- by nanoscale zerovalent iron supported on layered double hydroxide via an advanced XAFS approach: Implications for TcO4- sequestration.APPLIED CATALYSIS B-ENVIRONMENTAL,192(无),268-276.
MLA Sheng, Guodong,et al."Enhanced immobilization of ReO4- by nanoscale zerovalent iron supported on layered double hydroxide via an advanced XAFS approach: Implications for TcO4- sequestration".APPLIED CATALYSIS B-ENVIRONMENTAL 192.无(2016):268-276.

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来源：合肥物质科学研究院

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