Study of Microscopic Adsorption Modes of Zn (II) on TiO2 Surface
文献类型：期刊论文
| 作者 | Yang Yu-Huan ; Pan Gang ; Ma Xiao-Nan ; Chen Hao ; Zhang Mei-Yi ; He Guan-Zhi ; Li Wei |
| 刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
 |
| 出版日期 | 2009-02-10 |
| 卷号 | 30期号:2页码:387-390 |
| 关键词 | Extended X-ray absorption fine structure(EXAFS) Density functional theory Hydrated Zn Anatase TiO2 MEA state Adsorption |
| 中文摘要 | Microscopic adsorption modes of Zn(II) on anatase TiO2-water interface were studied using extended X-ray absorption fine structure (EXAFS) spectroscopy. Quantitative analysis of the EXAFS spectra showed that the microscopic structure of Zn(II) on anatase TiO2 is four coordinate complex, and there are at least two types of bonding based on the average Ti-Zn distances in the second sphere. Two different geometry configurations of single-corner(SC) and double-corner( DC) for adsorption on the ( 10 1) surface cluster were calculated using DFT method. The Zn-Ti distances are 0.369 nm and 0.335 nm for the single-corner adsorption mode and double-corner adsorption mode, respectively. Therefore, the EXAFS fitting data, R-1=0.371 nm, R-2=0.332 nm, can be well distinguished for SC and DC mode respectively. The calculation results also showed that the optimized Zn-O average distance of Zn-O tetrahedron is about 0.200 nm, which agree with the EXAFS results. These show that Zn was adsorbed onto TiO2 surfaces in different metastable equilibrium state(MEA) under the same thermodynamic conditions. |
| WOS记录号 | WOS:000263780200033 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21741]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yang Yu-Huan,Pan Gang,Ma Xiao-Nan,et al. Study of Microscopic Adsorption Modes of Zn (II) on TiO2 Surface[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2009,30(2):387-390. |
| APA | Yang Yu-Huan.,Pan Gang.,Ma Xiao-Nan.,Chen Hao.,Zhang Mei-Yi.,...&Li Wei.(2009).Study of Microscopic Adsorption Modes of Zn (II) on TiO2 Surface.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,30(2),387-390. |
| MLA | Yang Yu-Huan,et al."Study of Microscopic Adsorption Modes of Zn (II) on TiO2 Surface".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 30.2(2009):387-390. |
入库方式： OAI收割
来源：生态环境研究中心
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