Effect of arsenate on adsorption of cd(ii) by two variable charge soils
文献类型：期刊论文
| 作者 | Liang, Jing; Xu, Renkou; Jiang, Xin; Wang, Yong; Zhao, Anzhen; Tan, Wenfeng |
| 刊名 | Chemosphere
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 67期号:10页码:1949-1955 |
| 关键词 | Arsenate Cd(ii) Adsorption Desorption Variable charge soil |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2006.11.057 |
| 通讯作者 | Xu, renkou(rkxu@issas.ac.cn) |
| 英文摘要 | The effect of arsenate on cd(ii) adsorption in two variable charge soils and the desorption of cd(ii) pre-adsorbed in the presence of arsenate were studied. the batch type experiments showed, the presence of arsenate led to increase in cd(ii) adsorption and the desorption of pre-adsorbed cd(ii). further it was observed that the extent of adsorption and desorption of cd(ii) was greatly influenced by the initial concentrations of arsenate and cd(ii), the solution ph, and the nature of the soils. in general the increase in arsenate concentration and ph favored the uptake of cd(ii). moreover, the arsenate concentration influenced more in hyper-rhodic ferralsol than rhodic ferralsol at least for the cd(ii) adsorption/desorption. this may be due to the content of fe/al oxides in these soils. the larger the content of fe/al oxides, the more the adsorption of arsenate by the soil, hence greater the uptake of cd(ii). it can be assumed that the enhanced cd(ii) adsorption was mainly due to the increase in net negative surface charge of the soil induced by the adsorption of arsenate, because the presence of arsenate led to the decrease in zeta potential of these soil suspensions. the increase of electrostatically adsorbed cd(ii) was responsible for the increase in the desorption of cd(ii) pre-adsorbed in the presence of arsenate. (c) 2006 elsevier ltd. all rights reserved. |
| WOS关键词 | GOETHITE-WATER INTERFACE ; HEAVY-METALS ; COMPETITIVE ADSORPTION ; CADMIUM SORPTION ; COBALT DESORPTION ; PHOSPHATE ; ACID ; BEHAVIOR ; KINETICS ; SURFACE |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000246290300008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2382484 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Xu, Renkou |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Peoples R China 2.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China 3.Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Jing,Xu, Renkou,Jiang, Xin,et al. Effect of arsenate on adsorption of cd(ii) by two variable charge soils[J]. Chemosphere,2007,67(10):1949-1955. |
| APA | Liang, Jing,Xu, Renkou,Jiang, Xin,Wang, Yong,Zhao, Anzhen,&Tan, Wenfeng.(2007).Effect of arsenate on adsorption of cd(ii) by two variable charge soils.Chemosphere,67(10),1949-1955. |
| MLA | Liang, Jing,et al."Effect of arsenate on adsorption of cd(ii) by two variable charge soils".Chemosphere 67.10(2007):1949-1955. |
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来源：中国科学院大学
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