Knowledge Management System Of Shanghai Institute of Applied Physics, CAS
| Mechanism and microstructure of Eu(III) interaction with gamma-MnOOH by a combination of batch and high resolution EXAFS investigation | |
| Gao Xing; Sheng GuoDong; Huang YuYing | |
| 2013 | |
| Source Publication | SCIENCE CHINA-CHEMISTRY
 |
| ISSN | 1674-7291; 1869-1870 |
| Volume | 56Issue:11Pages:CONCATENATE(Sheet1!I207,-Sheet1!J207) |
| Abstract | In this paper, the macroscopic interaction method and high resolution EXAFS technique with a bent crystal analyzer were combined to study Eu(III) interaction mechanism and microstructure with gamma-MnOOH as a function of pH. The results indicated that Eu(III) interaction with gamma-MnOOH was apparently dependent on pH but independent of ionic strength, suggesting the formation of inner-sphere surface complexation for Eu(III) onto gamma-MnOOH. Results of EXAFS analysis indicated that Eu was surrounded by similar to 9.0 O atoms in first coordination shell at R (Eu-O) a parts per thousand 2.40 , and second shell of Mn atoms at R (Eu-Mn) a parts per thousand 3.60 was observed for the three adsorption samples. These findings suggested formation of a bidentate surface complex with Eu(III) bonding by edge sharing to MnO6-octahedron on gamma-MnOOH surface. Both the macroscopic interaction data and the molecular level evidence of Eu(III) microstructure at the gamma-MnOOH-water interface should be factored into better understanding the fate and mobility of Eu(III) and related radionuclides in the natural soil and water environment. |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000326327500021 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/13817 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation GB/T 7714 | Gao Xing,Sheng GuoDong,Huang YuYing. Mechanism and microstructure of Eu(III) interaction with gamma-MnOOH by a combination of batch and high resolution EXAFS investigation[J]. SCIENCE CHINA-CHEMISTRY,2013,56(11):CONCATENATE(Sheet1!I207,-Sheet1!J207). |
| APA | Gao Xing,Sheng GuoDong,&Huang YuYing.(2013).Mechanism and microstructure of Eu(III) interaction with gamma-MnOOH by a combination of batch and high resolution EXAFS investigation.SCIENCE CHINA-CHEMISTRY,56(11),CONCATENATE(Sheet1!I207,-Sheet1!J207). |
| MLA | Gao Xing,et al."Mechanism and microstructure of Eu(III) interaction with gamma-MnOOH by a combination of batch and high resolution EXAFS investigation".SCIENCE CHINA-CHEMISTRY 56.11(2013):CONCATENATE(Sheet1!I207,-Sheet1!J207). |
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| File Name/Size | DocType | Version | Access | License | ||
| Mechanism and micros（756KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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