Artur Drankov

Актуальной экологической проблемой является загрязнение воды радионуклидами Cs+ и Sr2+ в ходе ядерного топливного цикла. Перспективным способом очистки образующихся жидких радиоактивных отходов является селективная адсорбция радионуклидов с помощью неорганических сорбентов со структурой цеолита, обладающих ионоситовым эффектом. В ходе выполнения ра...

In the present study, we synthesized layered double hydroxides of Zn and Al, modificated with K4[Fe(CN)6]. Obtained samples demonstrated high static sorption characteristics towards Cs(I) in aqueous solution. Sorption characteristics increased with intercalation of hexacyanoferrate (II) ions in interlayer space of layered double hydroxides.

In the present study, we synthesized layered double hydroxides of Zn and Al, modificated with K4[Fe(CN)6]. Obtained samples demonstrated high static sorption characteristics towards U(VI) in aqueous solution (Kd >104 when C(UO22+) = 50 mg/l and V/m = 1000 ml/g). Sorption characteristics increased with intercalation of hexacyanoferrate (II) ions in...

A new approach to the use of rice straw as a difficult-to-recycle agricultural waste was proposed. Potassium aluminosilicate was obtained by spark plasma sintering as an effective material for subsequent immobilization of ¹³⁷Cs into a solid-state matrix. The sorption properties of potassium aluminosilicate to ¹³⁷Cs from aqueous solutions were studi...

Hydrothermal synthesis of NaY-type zeolite was carried out and the effect of temperature on the phase composition, crystal structure, textural characteristics, particle size and morphology, as well as sorption properties to Cs⁺ ions was studied. Solid-state matrices based on NaY zeolite the Faujasite structure containing 26.1 wt.% cesium were obtai...

A number of optimal parameters determining the efficiency and rate of the strontium removal by a granular sorbent synthesized by the interaction of KMnO4 and concentrated H2O2 solution have been determined. The optimal drying temperature was found to be 400 °C at an average grain size of 0.1–0.2 mm. The average value of the strontium distribution c...

Here, we suggest a facile and technologically available approach to synthesis of tungsten oxide-based materials implementing a liquid phase reductive precipitation followed by thermal dehydration of the obtained materials. Structure of the investigated sorbents refers to the type of tungsten bronze. Effects of annealing temperature on such properti...

The study describes direct precipitation, original template, and additional thermal reduction methods for the synthesis of materials based on cobalt oxides and their composites, promising as magnetic sorbents for the selective extraction and preconcentration of uranium(VI) from aqueous media. The thermal decomposition of intermediates and the phase...

Direct sol-gel, novel template, and additional high-temperature reduction procedures for preparing iron oxides and their composites, showing promise for selective sorption of dissolved U(VI) from aqueous media of various acidities, are described. The sorption activity of the materials was studied, the kinetic curves of the sorption were obtained, a...

An original synthetic route to nanostructured iron oxides with porous structure and to their reduced derivatives, prospective for uranium (VI) uptake from water media, is presented. The uniqueness of method includes combination of sol-gel technology, which used for generating inorganic framework, and template synthesis for porous structure formatio...

The sorption properties of materials based on iron oxides and their reduced forms with respect to uranium were studied. A description was made of a method for consolidation of porous iron oxides and its effect on such characteristics as porosity, magnetism, morphology, phase composition, and sorption properties. The mechanism of uranium sorption on...