Adsorption of Cu and Zn onto Mn/Fe Oxides and Organic Materials in the Extractable Fractions of River Surficial Sediments
文献类型：期刊论文
| 作者 | Li, Y.2,3; Wang, X. L.3; Huang, G. H.1; Zhang, B. Y.; Guo, S. H.2 |
| 刊名 | SOIL & SEDIMENT CONTAMINATION
 |
| 出版日期 | 2009 |
| 卷号 | 18期号:1页码:87-101 |
| 关键词 | Selective extraction iron oxides manganese oxides statistical analysis heavy metal |
| ISSN号 | 1532-0383 |
| DOI | 10.1080/15320380802547841 |
| 通讯作者 | Huang, G. H.(gordon.huang@uregina.ca) |
| 英文摘要 | The roles of the extractable components (Mn oxides, Fe oxides, and organic materials) of surficial sediments in controlling metals adsorption were investigated. Cu and Zn adsorptions were conducted before and after the surficial sediments extracted with hydroxylamine hydrochloride, an oxalate solution, and H(2)O(2), respectively. The extraction removed target components with extraction efficiencies from 63 to 98%. Nonlinear regression analyses of Cu and Zn adsorptions based on the assumption of additive Langmuir adsorption isotherm were employed to estimate the relative contributions of sediment components to Cu and Zn adsorptions. The results indicate that the greatest contribution to total Cu and Zn adsorption to the surficial sediments on a molar basis was from Mn oxides in the extractable fractions. Both Cu and Zn adsorption capacities of Mn oxides exceeded those of Fe oxides by approximately one order of magnitude, fewer roles were attributed to the adsorption of organic material ( OM), and the estimated contribution of the residual fraction to total Cu and Zn adsorption was insignificant. These information implied that the roles of metal oxides ( Fe and Mn oxides) in the extractable form of the surficial sediments, especially Mn oxides, was the most important component in controlling heavy metal transportation in aquatic environments. |
| 资助项目 | National Basic Research Priorities Program of China[2004CB3418501] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000262001400007 |
| 出版者 | TAYLOR & FRANCIS INC |
| 资助机构 | National Basic Research Priorities Program of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/126327]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Huang, G. H. |
| 作者单位 | 1.Univ Regina, Fac Engn, Environm Syst Engn Program, Regina, SK S4S 0A2, Canada 2.Chinese Acad Sci, Shenyang, Peoples R China 3.Jilin Univ, Changchun 130023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Y.,Wang, X. L.,Huang, G. H.,et al. Adsorption of Cu and Zn onto Mn/Fe Oxides and Organic Materials in the Extractable Fractions of River Surficial Sediments[J]. SOIL & SEDIMENT CONTAMINATION,2009,18(1):87-101. |
| APA | Li, Y.,Wang, X. L.,Huang, G. H.,Zhang, B. Y.,&Guo, S. H..(2009).Adsorption of Cu and Zn onto Mn/Fe Oxides and Organic Materials in the Extractable Fractions of River Surficial Sediments.SOIL & SEDIMENT CONTAMINATION,18(1),87-101. |
| MLA | Li, Y.,et al."Adsorption of Cu and Zn onto Mn/Fe Oxides and Organic Materials in the Extractable Fractions of River Surficial Sediments".SOIL & SEDIMENT CONTAMINATION 18.1(2009):87-101. |
入库方式： OAI收割
来源：金属研究所
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