Synergistic nanofibrous adsorbent for uranium extraction from seawater
文献类型：期刊论文
| 作者 | Zhang, BW; Guo, XJ; Xie, SY; Liu, XY; Ling, CJ; Ma, HJ; Yu, M; Li, JY |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:85页码:81995-82005 |
| ISSN号 | 2046-2069 |
| 通讯作者 | Zhang, BW ; Li, JY (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, CAS Ctr Innovat Adv Nucl Energy, 2019 Jialuo Rd, Shanghai 201800, Peoples R China. |
| 英文摘要 | Huge reserves of uranium (U) in seawater have been of interest to scientists and energy companies since the 1950s. However, extracting trace concentrations (3.3 ppb) of U from seawater is economically unfeasible without new, high-performance adsorbents. Here, a mat-like nanofibrous composite adsorbent containing binary coordination groups (amidoxime (AO) and carboxyl (AC(-))) in a highly porous network of nanofibers is constructed via a parallel-blend electrospinning method. Its U uptake in artificial seawater is more than double those of adsorbents containing AO or AC(-) groups alone. Density functional theory (DFT) calculations reveal that this synergistic effect is because the AC(-) group promotes both the U 5f/6d orbital contribution to U-AO bonding and the dissociation of uranyl tricarbonate ions in seawater. In a continuous flow-through experiment with simulated seawater, the nanofibrous adsorbent achieves an adsorption capacity up to 2.86 mg U g(ads)(-1) in 30 d but without saturation, indicating a high efficiency for U extraction. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000382776000072 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/26646]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Zhang, BW,Guo, XJ,Xie, SY,et al. Synergistic nanofibrous adsorbent for uranium extraction from seawater[J]. RSC ADVANCES,2016,6(85):81995-82005. |
| APA | Zhang, BW.,Guo, XJ.,Xie, SY.,Liu, XY.,Ling, CJ.,...&Li, JY.(2016).Synergistic nanofibrous adsorbent for uranium extraction from seawater.RSC ADVANCES,6(85),81995-82005. |
| MLA | Zhang, BW,et al."Synergistic nanofibrous adsorbent for uranium extraction from seawater".RSC ADVANCES 6.85(2016):81995-82005. |
入库方式： OAI收割
来源：上海应用物理研究所
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