Dynamics of metal formation upon radiation-chemical reduction of Cd2+ Ions in aqueous solutions: Morphology of cadmium precipitate

Авторы: Bykov G.L., Bludenko A.V., Ponomarev A.V., Ershov B.G.
Журнал: Radiation Physics and Chemistry
Том: 225
Год издания: 2024
Издательство: Elsevier
Местоположение издательства: United States
Номер статьи: 112115
DOI: 10.1016/j.radphyschem.2024.112115
Аннотация: The dynamics of metal formation upon radiation-chemical reduction of Cd2+ 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.
Добавил в систему: Ершов Борис Григорьевич

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