New insights into the sorption mechanism of cadmium on red mud
文献类型：期刊论文
| 作者 | Luo, Lei ; Ma, Chenyan ; Ma, Yibing ; Zhang, Shuzhen ; Lv, Jitao ; Cui, Mingqi |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2011-05-01 |
| 卷号 | 159期号:5页码:1108—1113 |
| 中文摘要 | 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. |
| WOS记录号 | WOS:000290192400012 |
| 公开日期 | 2012-10-18 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7080]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Luo, Lei,Ma, Chenyan,Ma, Yibing,et al. New insights into the sorption mechanism of cadmium on red mud[J]. ENVIRONMENTAL POLLUTION,2011,159(5):1108—1113. |
| APA | Luo, Lei,Ma, Chenyan,Ma, Yibing,Zhang, Shuzhen,Lv, Jitao,&Cui, Mingqi.(2011).New insights into the sorption mechanism of cadmium on red mud.ENVIRONMENTAL POLLUTION,159(5),1108—1113. |
| MLA | Luo, Lei,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：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。