New insights into the sorption mechanism of cadmium on red mud
文献类型：期刊论文
| 作者 | Luo, L; Ma CY(马陈燕) ; Cui MQ(崔明启); Ma, CY; Ma, YB; Zhang, SZ; Lv, JT; Cui, MQ
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| 刊名 | ENVIRONMENTAL POLLUTION
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| 出版日期 | 2011 |
| 卷号 | 159期号:5页码:1108-1113 |
| 关键词 | Cadmium Red mud Sorption XANES Sequential extraction analysis |
| 通讯作者 | [Luo, Lei ; Ma, Yibing] Chinese Acad Agr Sci, Minist Agr, Key Lab Plant Nutr & Nutrient Cycling, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China ; [Luo, Lei ; Zhang, Shuzhen ; Lv, Jitao] Chinese Acad Sci, State Key Lab Environm Chem & Ecotoxicol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China ; [Ma, Chenyan ; Cui, Mingqi] Chinese Acad Sci, Inst High Energy Phys, State Key Lab Synchrotron Radiat, Beijing 100039, Peoples R China |
| 英文摘要 | Effectiveness and mechanism of cadmium (Cd) sorption on original, acidified and ball milling nanoparticle red muds were investigated using batch sorption experiments, sequential extraction analysis and X-ray absorption near edge structure (XANES) spectroscopy. The maximum sorption capacity of Cd was 0.16, 0.19, and 0.21 mol/kg for the original, acidified, and nano-particle red muds at pH 6.5, respectively. Both acidification and ball-milling treatments significantly enhanced Cd sorption and facilitated transformation of Cd into less extractable fractions. The Cd L(III)-edge XANES analysis indicated the formation of inner-sphere complexes of Cd similar to XCdOH (X represents surface groups on red mud) on the red mud surfaces although outer-sphere complexes of Cd were the primary species. This work shed light on the potential application of red mud to remediate Cd-contaminated soils and illustrated the promising tool of XANES spectroscopy for speciation of multicomponent systems of environmental relevance. (C) 2011 Elsevier Ltd. All rights reserved. |
| 学科主题 | Environmental Sciences & Ecology |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000290192400012 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239058]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Luo, L,Ma CY,Cui MQ,et al. New insights into the sorption mechanism of cadmium on red mud[J]. ENVIRONMENTAL POLLUTION,2011,159(5):1108-1113. |
| APA | Luo, L.,马陈燕.,崔明启.,Ma, CY.,Ma, YB.,...&Cui, MQ.(2011).New insights into the sorption mechanism of cadmium on red mud.ENVIRONMENTAL POLLUTION,159(5),1108-1113. |
| MLA | Luo, L,et al."New insights into the sorption mechanism of cadmium on red mud".ENVIRONMENTAL POLLUTION 159.5(2011):1108-1113. |
入库方式： OAI收割
来源：高能物理研究所
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