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Sorption of anionic metsulfuron-methyl and cationic difenzoquat on peat and soil as affected by copper
Pei, ZG; Shan, XQ; Wen, B; He, B; Liu, T; Xie, YN; Owens, G; Liu T(刘涛); Xie YN(谢亚宁)
2008
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷号42期号:18页码:6849-6854
通讯作者[Pei, Zhiguo ; Shan, Xiao-Quan ; Wen, Bei] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China ; [He, Bo] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Anhua 230026, Peoples R China ; [Liu, Tao ; Xie, Yaning] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing 100049, Peoples R China ; [Owens, Gary] Univ S Australia, Ctr Environm Risk Assessment & Remediat, Mawson Lakes, SA 5095, Australia
文章类型Article
摘要The effect of cationic copper (Cu2+) on the sorption of anionic metsulfuron-methyl (Me) and cationic difenzoquat (DZ) to peat and soil was studied using a batch equilibration method. The results showed that Cu2+ increased the sorption of Me but diminished the sorption of DZ. The adsorption of Cu2+ on the surface of peat and soil neutralizes the negative charge, making the zeta potential (zeta) of peat and soil less negative, consequently decreasing the repulsion between the surface of peat or soil and Me and increasing the sorption of Me. Cu2+ may additionally form Cu-Me complexes in aqueous solution, which was preferentially sorbed to peat and soil over the anionic Me. In contrast, the decreased negative surface charge of soil and peat does not favor the sorption of cationic DZ. Fourier transform infrared showed that DZ may be sorbed through interaction with -OH or -COOH groups of peat and soil and that surface complexes of Cu2+ may form through these groups. A competitive sorption between Cu2+ and DZ for the same sorption sites is indicated, leading to mutual sorption inhibition of both cations.
学科领域Engineering; Environmental Sciences & Ecology
DOI10.1021/es800807m
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语种英语
WOS研究方向Engineering ; Environmental Sciences & Ecology
WOS类目Engineering, Environmental ; Environmental Sciences
WOS记录号WOS:000259139400016
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240096
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Pei, ZG,Shan, XQ,Wen, B,et al. Sorption of anionic metsulfuron-methyl and cationic difenzoquat on peat and soil as affected by copper[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2008,42(18):6849-6854.
APA Pei, ZG.,Shan, XQ.,Wen, B.,He, B.,Liu, T.,...&谢亚宁.(2008).Sorption of anionic metsulfuron-methyl and cationic difenzoquat on peat and soil as affected by copper.ENVIRONMENTAL SCIENCE & TECHNOLOGY,42(18),6849-6854.
MLA Pei, ZG,et al."Sorption of anionic metsulfuron-methyl and cationic difenzoquat on peat and soil as affected by copper".ENVIRONMENTAL SCIENCE & TECHNOLOGY 42.18(2008):6849-6854.
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