EXAFS studies on adsorption-desorption reversibility at manganese oxide-water interfaces II. Reversible adsorption of zinc on delta-MnO2
Li, XL; Pan, G; Qin, YW; Hu, TD; Wu, ZY; Xie, YN; Hu TD(胡天斗); Wu ZY(吴自玉); Xie YN(谢亚宁)
刊名JOURNAL OF COLLOID AND INTERFACE SCIENCE
2004
卷号271期号:1页码:#REF!
关键词EXAFS Zn manganese oxides delta-MnO2 gamma-MnOOH metastable adsorption linkage mode adsorption reversibility
学科分类Chemistry
DOI10.1016/j.jcis.2003.11.029
通讯作者Pan, G (reprint author), Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Aquat Chem, POB 2871, Beijing 100085, Peoples R China.
文章类型Article
英文摘要Microscopic structures of Zn(II) adsorbed at delta-MnO2-water interfaces were studied using extended X-ray absorption fine structure (EXAFS) spectroscopy. In a 0.1 M NaNO3 solution of pH 5.50, hydrous Zn(II) was adsorbed onto the solid surface in the form of octahedral coordination. Adsorbed octahedral Zn(II) was located above and below the vacancy sites of delta-MnO2. Each Zn was coordinated on one side to H2O molecules forming an H2O sheet and on the other side to oxygen atoms shared with layer MnO6 octahedra forming a corner-sharing octahedral interlayer complex. The average Zn-O and Zn-Mu distances were 2.07 +/- 0.01 and 3.52 +/- 0.01 Angstrom, respectively. Macroscopic adsorption-desorption isotherms showed that, in contrast to that of the Zn-gamma-MnOOH system, adsorption of Zn(II) on delta-MnO2 was highly reversible. EXAFS results indicated that the highly reversible adsorption was due to the weak adsorption mode of the corner-sharing linkage between the adsorbate and adsorbent polyhedra. (C) 2003 Elsevier Inc. All rights reserved.
类目[WOS]Chemistry, Physical
收录类别SCI
WOS记录号WOS:000188778600005
引用统计
被引频次:66[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/311005/225646
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
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Li, XL,Pan, G,Qin, YW,et al. EXAFS studies on adsorption-desorption reversibility at manganese oxide-water interfaces II. Reversible adsorption of zinc on delta-MnO2[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2004,271(1):#REF!.
APA Li, XL.,Pan, G.,Qin, YW.,Hu, TD.,Wu, ZY.,...&谢亚宁.(2004).EXAFS studies on adsorption-desorption reversibility at manganese oxide-water interfaces II. Reversible adsorption of zinc on delta-MnO2.JOURNAL OF COLLOID AND INTERFACE SCIENCE,271(1),#REF!.
MLA Li, XL,et al."EXAFS studies on adsorption-desorption reversibility at manganese oxide-water interfaces II. Reversible adsorption of zinc on delta-MnO2".JOURNAL OF COLLOID AND INTERFACE SCIENCE 271.1(2004):#REF!.
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