کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1886863 | 1043561 | 2008 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Removal of nickel and cobalt ions from aqueous solutions using electron-beam treatment Removal of nickel and cobalt ions from aqueous solutions using electron-beam treatment](/preview/png/1886863.png)
Radiation removal of Co2+ and Ni2+ ions from aqueous solutions containing Me2+ and various scavengers for OH radicals has been studied. In nondeaerated solutions containing HCOOK as OH radical scavenger, two mechanisms of removal were found: reduction leading to the insoluble colloidal metals and precipitation causing predominant formation of carbonate. The processes taking place are mainly affected by the concentration of formate scavenger and depend on the type of metal ions in solution.In the presence of aliphatic alcohols as OH radical scavengers at pH in the interval 6–8, the radiation treatment leads to the metallic product. The efficiency of reduction depends on the rate constant for the reaction of Me+ intermediate with corresponding alcohol radical.
Journal: Radiation Physics and Chemistry - Volume 77, Issue 8, August 2008, Pages 968–973