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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)
2005
发表期刊ACTA PHYSICO-CHIMICA SINICA
卷号21期号:10页码:1169-1173
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
文章类型Article
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.
关键词Zn(II) adsorption precipitation gamma-MnOOH EXAFS
学科领域Chemistry
研究领域[WOS]Chemistry ; Chemistry
DOI10.3866/PKU.WHXB20051022
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语种英语
研究领域[WOS]Chemistry ; Chemistry
WOS类目Chemistry, Physical
WOS记录号WOS:000232814500022
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239136
专题多学科研究中心
作者单位中国科学院高能物理研究所
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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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