Effect of ionizing radiation on the stability of colloidal silver and other metals in aqueous solutions

被引:2
作者
Ershov, BG
机构
[1] Institute of Physical Chemistry, Russian Academy of Sciences, 117915 Moscow
关键词
radiation stability; accelerated electrons; gamma-rays; lyophobic colloids; metal sols; silver;
D O I
10.1007/BF02494354
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The effect of ionizing radiation (accelerated electrons and gamma-rays of Co-60) On the stability of aqueous solutions of colloidal silver was studied. The threshold of absorbed dose, at which the stability dramatically decreases and coagulation of the metal occurs, was found. This critical dose corresponds to the reduction of silver ions that determine the electrical potential of the sols. ''Radiation'' neutralization was also found for cadmium sets and was not observed in the case of thallium, copper, or platinum. A mechanism of the effect of radiation, taking into account the electrostatic factor in the stability of metal sols, was considered.
引用
收藏
页码:245 / 250
页数:6
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