| Mechanisms of Synergistic Removal of Low Concentration As(V) by nZVI@Mg(OH)(2) Nanocomposite | |
Wu, C; Liu, WZ; Zhang, J; Chu, SQ ; Shi, ZQ; Dang, Z; Lin, Z; Zhang J(张静); Chu SQ(储胜启)
| |
| 2017 | |
| Source Publication | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| ISSN | 1932-7447 |
| Volume | 121Issue:39Pages:21411-21419 |
| Subtype | Article |
| Abstract | In this work, by using Mg(OH)(2) nanoplatelets as support material for nanoscale zerovalent iron (nZVI), riZVI@ Mg(OH)(2) composite was prepared and found to have super high adsorption ability toward As(V) at environmentally relevant concentrations. It was revealed that the variation of corrosion products of nZVI in the presence of Mg(OH)(2) and Mg2+ is an important factor for increase in the adsorption ability toward As(V). X-ray diffraction (XRD) analysis indicated that the weakly basic condition induced by Mg(OH)(2) decreases the lepidocrocite (gamma-FeOOH) and increases the magnetite/maghemite (Fe3O4/gamma-Fe2O3) content in the corrosion products of nZVI, and the latter has better adsorption affinity to As(V). Moreover, extended X-ray absorption fine structure spectroscopy (EXAFS) indicated that the coordination between arsenic and iron minerals is influenced by dissolved Mg2+, leading to probable formation of magnesium ferrite (MgFe2O4) which has considerable adsorption affinity to As(V). This work provides an important reference not only for the design of pollution control materials but also for understanding arsenic immobilization in natural environments with ubiquitous Mg2+ ion. |
| DOI | 10.1021/acs.jpcc.7b06356 |
| WOS Keyword | ZERO-VALENT IRON ; ACID-MINE DRAINAGE ; AQUEOUS-SOLUTION ; SIMULTANEOUS OXIDATION ; AS(III) ; ADSORPTION ; WATER ; NANOPARTICLES ; ARSENIC(III) ; MAGNETITE |
| Indexed By | SCI ; EI ; SCOPUS |
| Language | 英语 |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000412716300035 |
| EI Accession Number | 20174504372689 |
| EI Keywords | Adsorption - Corrosion - Extended X ray absorption fine structure spectroscopy - Gamma rays - Iron oxides - Magnetite - Pollution control - X ray absorption - X ray diffraction analysis |
| EI Classification Number | 711 Electromagnetic Waves - 802.3 Chemical Operations - 804.2 Inorganic Compounds - 931.3 Atomic and Molecular Physics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihep.ac.cn/handle/311005/285290 |
| Collection | 多学科研究中心 粒子天体物理中心 |
| Affiliation | 中国科学院高能物理研究所 |
| First Author Affilication | Institute of High Energy |
| Recommended Citation GB/T 7714 | Wu, C,Liu, WZ,Zhang, J,et al. Mechanisms of Synergistic Removal of Low Concentration As(V) by nZVI@Mg(OH)(2) Nanocomposite[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017,121(39):21411-21419. |
| APA | Wu, C.,Liu, WZ.,Zhang, J.,Chu, SQ.,Shi, ZQ.,...&储胜启.(2017).Mechanisms of Synergistic Removal of Low Concentration As(V) by nZVI@Mg(OH)(2) Nanocomposite.JOURNAL OF PHYSICAL CHEMISTRY C,121(39),21411-21419. |
| MLA | Wu, C,et al."Mechanisms of Synergistic Removal of Low Concentration As(V) by nZVI@Mg(OH)(2) Nanocomposite".JOURNAL OF PHYSICAL CHEMISTRY C 121.39(2017):21411-21419. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment