EXAFS study of Zn (II) adsorption and precipitation on gamma-MnOOH surface under different pH conditions | |
Zhu, MQ; Pan, G; Li, XL; Liu, T; Yang, YH; Liu T(刘涛) | |
刊名 | ACTA PHYSICO-CHIMICA SINICA |
2005 | |
卷号 | 21期号:10页码:1169-1173 |
关键词 | Zn(II) adsorption precipitation gamma-MnOOH EXAFS |
通讯作者 | Chinese Acad Sci, State Key Lab Environm Aquat Chem, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China |
英文摘要 | Mechanisms of adsorption and precipitation of Zn (II) on gamma-MnOOH-water interfaces at pH 7.00, 7.50 and 8.00 were studied using EXAFS (extended X-ray absorption fine structure). The Zn-O distance for adsorbed Zn(II) was 0.202nm, which did not change when pH increased from. 7.00 to 8.00. This result implied that Zn2+ was adsorbed as a mixture of tetrahedron and octahedron. At pH 7.00, Zn 21 was adsorbed on (110) or (001) plane of gamma-MnOOH by edge linkage mode, which corresponded a Zn-Mn distance of similar to 0.300 nm. At pH 7.50 and 8.00, most Zn(11) was precipitated as multinuclear hydroxo-complexes with similar structures where the Zn-Zn distances were 0.353 nm ( tetrahedron-octahedron linkage) and 0.311 nm (octahedron-octahedron linkage), respectively. |
学科主题 | Chemistry |
类目[WOS] | Chemistry, Physical |
研究领域[WOS] | Chemistry |
原文出处 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000232814500022 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/239136] |
专题 | 高能物理研究所_多学科研究中心 |
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 | Zhu, MQ,Pan, G,Li, XL,et al. EXAFS study of Zn (II) adsorption and precipitation on gamma-MnOOH surface under different pH conditions[J]. ACTA PHYSICO-CHIMICA SINICA,2005,21(10):1169-1173. |
APA | Zhu, MQ,Pan, G,Li, XL,Liu, T,Yang, YH,&刘涛.(2005).EXAFS study of Zn (II) adsorption and precipitation on gamma-MnOOH surface under different pH conditions.ACTA PHYSICO-CHIMICA SINICA,21(10),1169-1173. |
MLA | Zhu, MQ,et al."EXAFS study of Zn (II) adsorption and precipitation on gamma-MnOOH surface under different pH conditions".ACTA PHYSICO-CHIMICA SINICA 21.10(2005):1169-1173. |
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