Mechanisms of Synergistic Removal of Low Concentration As(V) by nZVI@Mg(OH)(2) Nanocomposite
文献类型：期刊论文
| 作者 | Shi, ZQ; Chu, SQ ; Zhang, J; Liu, WZ; Zhang J(张静); Chu SQ(储胜启); Wu, C; Lin, Z; Dang, Z
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| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2017 |
| 卷号 | 121期号:39页码:21411-21419 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/acs.jpcc.7b06356 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| WOS关键词 | ZERO-VALENT IRON ; ACID-MINE DRAINAGE ; AQUEOUS-SOLUTION ; SIMULTANEOUS OXIDATION ; AS(III) ; ADSORPTION ; WATER ; NANOPARTICLES ; ARSENIC(III) ; MAGNETITE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000412716300035 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285290]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Shi, ZQ,Chu, SQ,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 | Shi, ZQ.,Chu, SQ.,Zhang, J.,Liu, WZ.,张静.,...&Dang, Z.(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 | Shi, ZQ,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. |
入库方式： OAI收割
来源：高能物理研究所
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