Effects of phthalic and salicylic acids on Cu(II) adsorption by variable charge soils
文献类型：期刊论文
| 作者 | Xu, Renkou; Xiao, Shuangcheng; Xie, Dan; Ji, Guoliang |
| 刊名 | BIOLOGY AND FERTILITY OF SOILS
 |
| 出版日期 | 2006-06-01 |
| 卷号 | 42期号:5页码:443-449 |
| 关键词 | variable charge soils salicylic acid phthalic acid Cu(II) adsorption |
| ISSN号 | 0178-2762 |
| DOI | 10.1007/s00374-006-0089-2 |
| 通讯作者 | Xu, Renkou(rkxu@issas.ac.cn) |
| 英文摘要 | In the present study, the effect of two substituted benzoic acids on Cu(II) adsorption onto two variable charge soils was investigated, with the emphasis on the adsorption and desorption equilibrium of Cu(II). Results showed that the presence of organic acids induced an increase in Cu(II) adsorption onto the two soils. The extent of the effect was related to the initial concentrations of Cu(II) and organic acid, the system pH, and the nature of the soils. The effect of organic acids was greater for Oxisol than for Ultisol. Phthalic acid affected Cu(II) adsorption to a greater extent than salicylic acid did. The effect of organic acids varied with pH. The adsorption of Cu(II) induced by organic acids increased with increasing pH and reached a maximum value at approximately pH 4.5, and then decreased. It can be assumed that the main reason for the enhanced adsorption of Cu(II) is an increase in the negative surface charge caused by the specific adsorption of organic anions on soils because the desorption of Cu(II) adsorbed in organic acid systems was greater than that for the control. The desorption of Cu(II) absorbed in both control and organic acid systems also increased with increasing pH; it reached a maximum value at pH similar to 5.25 for control and salicylic acid systems and at pH similar to 5.1 for a phthalic acid system, then decreased. This interesting phenomenon was caused by the characteristics of the surface charge of variable charge soils. |
| 收录类别 | ISTP ; SCI |
| WOS关键词 | WEIGHT ORGANIC-ANIONS ; CADMIUM SORPTION ; OXIDE SURFACES ; LIGANDS ; COMPLEXATION ; GOETHITE ; COPPER ; MODEL |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000238858800011 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558603 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Xu, Renkou |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Nanjing, Peoples R China 2.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Renkou,Xiao, Shuangcheng,Xie, Dan,et al. Effects of phthalic and salicylic acids on Cu(II) adsorption by variable charge soils[J]. BIOLOGY AND FERTILITY OF SOILS,2006,42(5):443-449. |
| APA | Xu, Renkou,Xiao, Shuangcheng,Xie, Dan,&Ji, Guoliang.(2006).Effects of phthalic and salicylic acids on Cu(II) adsorption by variable charge soils.BIOLOGY AND FERTILITY OF SOILS,42(5),443-449. |
| MLA | Xu, Renkou,et al."Effects of phthalic and salicylic acids on Cu(II) adsorption by variable charge soils".BIOLOGY AND FERTILITY OF SOILS 42.5(2006):443-449. |
入库方式： iSwitch采集
来源：南京土壤研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。