کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4440470 | 1311061 | 2010 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Environmental copper: Behaviour when involved in physical adsorption at several interfaces Environmental copper: Behaviour when involved in physical adsorption at several interfaces](/preview/png/4440470.png)
From a literature-based assessment of the current knowledge about both the toxic or salutary properties of copper, this study focused on the determination, at 25 °C, of the interfacial properties of CuCl2, either alone or in mixture with carbofuran used, here, as a model of organics and/or pesticide. The interfaces under study were: i) the air/solution interface and ii) the silica/solution interface. The former is considered as a path for volatilization, whereas the latter permits a modelling of physical adsorption upon solids, which is the first and unavoidable step in any adsorption process. One should note that it can also mimic adsorption on some sandy soils. Coadsorption was clearly identified as implicated in an enhancement of the surface content of both solutes at both interfaces. However, at the two interfaces under study, the way the surface became structured led to opposite adsorption mechanisms for the organic compounds and the salt. A rough theory about ionic adsorption is also proposed.
Journal: Atmospheric Environment - Volume 44, Issue 39, December 2010, Pages 5211–5217