Abiotic oxidation of Mn(II) induced oxidation and mobilization of As(III) in the presence of magnetite and hematite
文献类型：期刊论文
| 作者 | Ren, Hai-Tao1; Jia, Shao-Yi1; Wu, Song-Hai1; Liu, Yong2; Hua, Chao3; Han, Xu4,5 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2013-06-15 |
| 卷号 | 254期号:0页码:89-97 |
| 关键词 | Mn(II) oxidation As(III) Magnetite Hematite Mobilization |
| 英文摘要 | Manganese (hydr)oxides are powerful oxidants mediating the transformation of As(III) to As(V) under natural conditions, however, the presence of Mn(II) on the oxidation of As(III) in the pH range of 7.0-9.0 has not been reported so far. In this study, abiotic oxidation of Mn(II) to amorphous Mn(III, IV) (hydr)oxides (MnOx) on magnetite and hematite was confirmed, and the impact of newly formed MnOx on the fate of As(III) was investigated. With the addition of Mn(II) into As(III)-preloaded systems, the dissolved and the adsorbed As(III) was oxidized to As(V) at high pH, and Mn(II) mobilized the adsorbed As(III) and As(V) in hematite system. High production of dissolved As(V) and significant mobilization of As(III) were even more significant in hematite suspension (total As was 18.96 mg L-1 after 60 h at pH 8.62) with simultaneous addition of Mn(II) and As(III), while magnetite showed a higher capacity for the retention of As(III) and As(V). It could therefore be deduced that the newly formed MnOx on iron oxides could oxidize the dissolved and the adsorbed As(III) to As(V). In addition, the MnOx formed at high pH would take up the sorption sites previously occupied by the adsorbed As(III), and then mobilized a fraction of the adsorbed As(III) into solution. The present study reveals that MnOx formed via abiotic oxidation on iron oxides plays an important role in the oxidation and mobilization of both dissolved and adsorbed As(III) in aquatic environment. (C) 2013 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
| 研究领域[WOS] | Engineering ; Environmental Sciences & Ecology |
| 关键词[WOS] | MANGANESE OXIDES ; ARSENIC(III) OXIDATION ; SYNTHETIC BIRNESSITE ; ARSENATE ADSORPTION ; ARSENITE ; KINETICS ; SORPTION ; GROUNDWATER ; SURFACES ; IRON |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000321079000011 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13601]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China 2.Tianjin Univ Technol, Sch Chem & Chem Engn, Tianjin, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing, Peoples R China 4.Tianjin Polytech Univ, State Key Lab Hollow Fiber Membrane Mat & Proc, Tianjin, Peoples R China 5.Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Hai-Tao,Jia, Shao-Yi,Wu, Song-Hai,et al. Abiotic oxidation of Mn(II) induced oxidation and mobilization of As(III) in the presence of magnetite and hematite[J]. JOURNAL OF HAZARDOUS MATERIALS,2013,254(0):89-97. |
| APA | Ren, Hai-Tao,Jia, Shao-Yi,Wu, Song-Hai,Liu, Yong,Hua, Chao,&Han, Xu.(2013).Abiotic oxidation of Mn(II) induced oxidation and mobilization of As(III) in the presence of magnetite and hematite.JOURNAL OF HAZARDOUS MATERIALS,254(0),89-97. |
| MLA | Ren, Hai-Tao,et al."Abiotic oxidation of Mn(II) induced oxidation and mobilization of As(III) in the presence of magnetite and hematite".JOURNAL OF HAZARDOUS MATERIALS 254.0(2013):89-97. |
入库方式： OAI收割
来源：过程工程研究所
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