Effects of Copper, Lead, and Cadmium on the Sorption of 2,4,6-Trichlorophenol Onto and Desorption from Wheat Ash and Two Commercial Humic Acids
Wang, YS; Shan, XQ; Feng, MH; Chen, GC; Pei, ZG; Wen, B; Liu, T; Xie, YN; Owens, G; Liu T(刘涛); Xie YN(谢亚宁)
刊名ENVIRONMENTAL SCIENCE & TECHNOLOGY
2009
卷号43期号:15页码:5726-5731
学科分类Engineering; Environmental Sciences & Ecology
DOI10.1021/es803357b
通讯作者[Wang, Yu-Sheng ; Shan, Xiao-Quan ; Feng, Mu-Hua ; Chen, Guang-Cai ; Pei, Zhi-Guo ; Wen, Bei] Ecoenvironm Sci Res Ctr, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China ; [Feng, Mu-Hua] Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China ; [Chen, Guang-Cai] Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Zhejiang, Peoples R China ; [Liu, Tao ; Xie, Ya-Ning] 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
英文摘要The effects of copper (Cu(2+)), lead (Pb(2+)), and cadmium (Cd(2+)) on the sorption of 2,4,6-trichlorophenol (TCP) to and desorption from wheat ash and two commercial humic acids were studied. Copper and Pb(2+) diminished the sorption of TCP onto all adsorbents, and made desorption of TCP less hysteretic from ash and German humic acids (GeHA), but more hysteretic from Tianjin humic acids (TJHA). Cadmium had little effect on TCP sorption and desorption. Fourier-transform infra red (FTIR) and X-ray absorption spectroscopy (XAS) in conjunction with fluorescence quenching studies provided insights into the mechanisms of TCP sorption and desorption as affected by Cu(2+) and Pb(2+), indicating that complexation of Cu(2+) and Pb(2+) was likely via carboxylic, hydroxylic and phenolic groups of ash, TJHA and GeHA, and that theses same functional groups also reacted with TCP during sorption. In contrast, Cd, a "soft acid", had no effect on the adsorption of TCP. Hydration shells of dense water around adsorbed Cu(2+) and Pb(2+) ions may also compete with TCP for available surface area. Fluorescence quenching of pyrene verified that for TJHA, Cu(2+) and Pb(2+) promoted the formation of supramolecular associations with interior hydrophobic regions separated from aqueous surroundings by exterior hydrophilic layers,
类目[WOS]Engineering, Environmental ; Environmental Sciences
研究领域[WOS]Engineering ; Environmental Sciences & Ecology
原文出处查看原文
语种英语
WOS记录号WOS:000268480600030
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被引频次:22[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/311005/240044
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_粒子天体物理中心
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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Wang, YS,Shan, XQ,Feng, MH,et al. Effects of Copper, Lead, and Cadmium on the Sorption of 2,4,6-Trichlorophenol Onto and Desorption from Wheat Ash and Two Commercial Humic Acids[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2009,43(15):5726-5731.
APA Wang, YS.,Shan, XQ.,Feng, MH.,Chen, GC.,Pei, ZG.,...&谢亚宁.(2009).Effects of Copper, Lead, and Cadmium on the Sorption of 2,4,6-Trichlorophenol Onto and Desorption from Wheat Ash and Two Commercial Humic Acids.ENVIRONMENTAL SCIENCE & TECHNOLOGY,43(15),5726-5731.
MLA Wang, YS,et al."Effects of Copper, Lead, and Cadmium on the Sorption of 2,4,6-Trichlorophenol Onto and Desorption from Wheat Ash and Two Commercial Humic Acids".ENVIRONMENTAL SCIENCE & TECHNOLOGY 43.15(2009):5726-5731.
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