New insights into the sorption mechanism of cadmium on red mud
Luo, L; Ma CY(马陈燕); Cui MQ(崔明启); Ma, CY; Ma, YB; Zhang, SZ; Lv, JT; Cui, MQ
刊名ENVIRONMENTAL POLLUTION
2011
卷号159期号:5页码:1108-1113
关键词Cadmium Red mud Sorption XANES Sequential extraction analysis
学科分类Environmental Sciences & Ecology
DOI10.1016/j.envpol.2011.02.019
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
文章类型Article
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.
类目[WOS]Environmental Sciences
研究领域[WOS]Environmental Sciences & Ecology
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语种英语
WOS记录号WOS:000290192400012
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被引频次:29[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239058
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
作者单位中国科学院高能物理研究所
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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.
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