Перегляд за Автор "Chaban, Mariya"

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Electrodeionization of li-containing solutions using ion exchange material based on tio2-mno2
(2018) Chaban, Mariya; Rozhdestvenska, Lyudmyla; Dzyazko, Yulia
In this work the problem of selective extraction of Li+ ions from combined solutions by electromembrane method is being solved. Sorbent based on lithium-substituted titanium manganese oxide was used. It is established that the function of the sorbent in the membrane system is reduced to the turbulization of the solution flow, but under the influence of alkalization of the solution near the surface of the sorbent granules, its sorption capacity increases with an increase in voltage from 3 to 20 V.
Lithium-selective composite materials based on TiO2 and MnO2
(2016) Rozhdestvenska, Lyudmyla; Chaban, Mariya; Belyakov, Volodymyr
Ion-exchange materials based on titanium dioxide-manganese dioxide composite were synthesized by template method. It was proved that sorption characteristics of the obtained materials depend of rate of heat treatment during the synthesis. Higher temperatures promote agglomeration of sorbent and decrease in its kinetic characteristics. But more lithium-selective sorption centers are formed and the selectivity of sorption increases.