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| Macroscopic and spectroscopic insights into the mutual interaction of graphene oxide, Cu(II), and Mg/Al layered double hydroxides | |
| Hu, BW; Huang, CC; Li, X; Sheng, GD; Li, H; Ren, XM; Ma, JY; Wang, J; Huang, YY | |
| 2017 | |
| 发表期刊 | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| 卷号 | 313页码:527-534 |
| 文章类型 | 期刊论文 |
| 摘要 | The environmental behavior and impact of graphene oxide (GO) has recently received considerable attention due to its rapid production and wide applications, and thus its inevitable release into the natural ecosystem, wherein heavy metals and mineral particles are generally co-existed. This work was firstly aimed to identify the mutual effect of Cu(II) and GO interaction with Mg/Al layered double hydroxides (LDH). The results demonstrate that Cu(II) and GO exhibited interactively enhancement roles in their co-adsorption on LDH. Namely, enhanced co-adsorption of GO with Cu(II) was mainly ascribed from formation of "LDH-Cu(II)-GO" ternary surface complexes via cation-in interaction. Meanwhile, increased co adsorption of Cu(II) with GO was primarily derived from formation of "LDH-GO-Cu(II)" ternary surface complexes through interaction of Cu(II) with O-bearing groups on adsorbed GO (i.e., GO-bridging). EXAFS analysis indicates that GO could significantly inhibit formation of outer-sphere complexes for Cu(II) at low pH, while suppress formation of surface precipitates at high pH. Increased uptake of GO and Cu(II) on minerals as they co-exist may decrease their mobility. These new insights provide additional details to be considered concerning the fate and risk of GO in real ecosystem, as well as the natural purification of metals in ecological environments. (C) 2016 Elsevier B.V. All rights reserved. |
| 关键词 | Graphene Oxide Layered Double Hydroxides Cu(Ii) Mutual Interaction |
| DOI | 10.1016/j.cej.2016.12.102 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000394723200053 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.sinap.ac.cn/handle/331007/27369 |
| 专题 | 中科院上海应用物理研究所2011-2018年 |
| 推荐引用方式 GB/T 7714 | Hu, BW,Huang, CC,Li, X,et al. Macroscopic and spectroscopic insights into the mutual interaction of graphene oxide, Cu(II), and Mg/Al layered double hydroxides[J]. CHEMICAL ENGINEERING JOURNAL,2017,313:527-534. |
| APA | Hu, BW.,Huang, CC.,Li, X.,Sheng, GD.,Li, H.,...&Huang, YY.(2017).Macroscopic and spectroscopic insights into the mutual interaction of graphene oxide, Cu(II), and Mg/Al layered double hydroxides.CHEMICAL ENGINEERING JOURNAL,313,527-534. |
| MLA | Hu, BW,et al."Macroscopic and spectroscopic insights into the mutual interaction of graphene oxide, Cu(II), and Mg/Al layered double hydroxides".CHEMICAL ENGINEERING JOURNAL 313(2017):527-534. |
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