The dynamics of metal formation upon radiation-chemical reduction of Cd ions in aqueous solutions in the presence of НCOONa and morphology of cadmium precipitate were studied. The dynamics process and the morphology were characterized by dynamic light scattering, photon correlation spectroscopy, scanning electron microscopy, and turbidimetry. The formation of aqueous dispersions of the metal with the initial particle size of approximately 0.20 ± 0.05 μm was demonstrated. The metal particles undergo agglomeration with time; as a result, their size increases to 2–3 μm. The process completes with the formation of the precipitate. A feature of the sediment morphology is the developed structure of its surface and high porosity. The pores (from 0.5 μm to several microns) make up 80–90% of its volume. The aggregation is accelerated with an increase in the absorbed dose (amount of reduced metal) and in the concentration of salts in the solution.

中文翻译：

---

水溶液中 Cd2+ 离子辐射化学还原形成金属的动力学：镉沉淀物的形态


研究了在 НCOONa 存在下，水溶液中镉离子辐射化学还原形成金属的动力学以及镉沉淀物的形态。通过动态光散射、光子相关光谱、扫描电子显微镜和比浊法对动力学过程和形貌进行了表征。证明了初始粒径约为 0.20 ± 0.05 μm 的金属水分散体的形成。金属颗粒随着时间的推移发生团聚；结果，它们的尺寸增加到 2-3 μm。该过程随着沉淀物的形成而完成。沉积物形态的一个特点是其表面结构发达、孔隙率高。孔隙（从 0.5 微米到几微米）占其体积的 80-90%。随着吸收剂量（还原金属的量）和溶液中盐浓度的增加，聚集加速。