Competitive and cooperative adsorption of arsenate and citrate on goethite
文献类型：期刊论文
| 作者 | Shi, R; Jia, YF; Wang, CZ; Jia, YF, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2009 |
| 卷号 | 21期号:1页码:106-112 |
| 关键词 | Adsorption Arsenate Citrate Goethite |
| ISSN号 | 1001-0742 |
| 英文摘要 | The fate of arsenic in natural environments is influenced by adsorption onto metal (hydr)oxides. The extent of arsenic adsorption is strongly affected by coexisting dissolved natural organic acids. Recently, some studies reported that there existed competitive adsorption between arsenate and citrate on goethite. Humic acid is known to interact strongly with arsenate by forming complexes in aqueous solution, hence it is necessary to undertake a comprehensive study of the adsorption of arsenate/citrate onto goethite in the presence of one another. The results showed that at the arsenate concentrations used in this study (0.006-0.27 mmol/L), citrate decreased arsenate adsorption at acidic pH but no effect was observed at alkaline pH. In comparison, citrate adsorption was inhibited at acidic pH, but enhanced at alkaline pH by arsenate. This was probably due to the formation of complex between arsenate and citrate like the case of arsenate with humic acid. These results implied that the mechanism of the adsorption of arsenate and citrate onto goethite in the presence of one another involved not only competition for binding sites, but the cooperation between the two species at the water-goethite interface as well. |
| 学科主题 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000262568800019 |
| 资助机构 | National Natural Science Foundation of China [40673079, 40773076] |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54265]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所 |
| 通讯作者 | Jia, YF, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, R,Jia, YF,Wang, CZ,et al. Competitive and cooperative adsorption of arsenate and citrate on goethite[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2009,21(1):106-112. |
| APA | Shi, R,Jia, YF,Wang, CZ,&Jia, YF, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2009).Competitive and cooperative adsorption of arsenate and citrate on goethite.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,21(1),106-112. |
| MLA | Shi, R,et al."Competitive and cooperative adsorption of arsenate and citrate on goethite".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 21.1(2009):106-112. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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