Metal Impurities Dominate the Sorption of a Commercially Available Carbon Nanotube for Pb(II) from Water
Tian, XL; Zhou, S; Zhang, ZY; He, XA; Yu, MJ; Lin, DH; Zhang ZY(张智勇); He X(何潇); Yu MJ(于梅娟)
刊名ENVIRONMENTAL SCIENCE & TECHNOLOGY
2010
卷号44期号:21页码:8144-8149
学科分类Engineering; Environmental Sciences & Ecology
DOI10.1021/es102156u
通讯作者[Tian, Xiaoli ; Zhou, Shan ; Lin, Daohui] Zhejiang Univ, Dept Environm Sci, Hangzhou 310028, Zhejiang, Peoples R China ; [Zhang, Zhiyong ; He, Xiao ; Yu, Meijuan] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Lin, Daohui] Zhejiang Univ, Zhejiang Prov Key Lab Organ Pollut Proc & Control, Hangzhou 310028, Zhejiang, Peoples R China
文章类型Article
英文摘要Numerous studies suggested carbon nanotubes (CNTs) as a type of promising sorbent for heavy metals from water and explained the sorption mechanism mainly by oxygen-containing functional groups on CNT surfaces but neglected the potential role of metal catalyst residues in CNTs. This is a first study showing that metal impurities could dominate the sorption of one type of commercially available CNTs (P-CNTs) for Pb(II) from water, which will help to understand and guide environmental applications of CNTs as a sorbent. Sorption capacity of P-CNTs (27.3 mg g(-1)) for Pb(II) was much higher than that of the water-washed P-CNTs (W-CNTs, 4.7 mg g(-1)). SEM-EDS and ICP-MS analyses showed that both P-CNTs and W-CNTs contained metal impurities (mainly Co and Mo) which released into the solutions during the sorption, especially P-CNTs. XAFS examination and precipitation experiments demonstrated that PbMoO(4) formation between Pb(II) and CNT-released MoO(4)(2-) and subsequent precipitation in the sorptive solutions was the dominant mechanism for the apparent sorption of Pb(II) by P-CNTs.
类目[WOS]Engineering, Environmental ; Environmental Sciences
研究领域[WOS]Engineering ; Environmental Sciences & Ecology
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语种英语
WOS记录号WOS:000283484000030
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被引频次:49[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/311005/240136
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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Tian, XL,Zhou, S,Zhang, ZY,et al. Metal Impurities Dominate the Sorption of a Commercially Available Carbon Nanotube for Pb(II) from Water[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2010,44(21):8144-8149.
APA Tian, XL.,Zhou, S.,Zhang, ZY.,He, XA.,Yu, MJ.,...&于梅娟.(2010).Metal Impurities Dominate the Sorption of a Commercially Available Carbon Nanotube for Pb(II) from Water.ENVIRONMENTAL SCIENCE & TECHNOLOGY,44(21),8144-8149.
MLA Tian, XL,et al."Metal Impurities Dominate the Sorption of a Commercially Available Carbon Nanotube for Pb(II) from Water".ENVIRONMENTAL SCIENCE & TECHNOLOGY 44.21(2010):8144-8149.
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