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Документ Sorbent on the basis of Ti/Mn oxide and Co cyanoferrate for 90Sr and 137Cs selective removal(2018) Maltseva, Tetyana; Palchik, Alexey; Bondarenko, GermanThe complex oxides of MxMn1-xO2•nH2O composition, (M-Zr, Ti, Sn) have been synthesized. Their surface was modified with phosphoric acid. phosphoric-molybdic acid and cobalt hexacyanoferrate. The sorption isotherms of Sr2+, Cs+ ions, as well as isotherms of sorption-desorption of such radionuclides as 90Sr and 137Cs were obtained. It was found that the most suitable sorbents for Sr2+ removal are MxMn1-xO2•nH2O complex oxides. ZrO2 modified by phosphate and molybdophosphate anions is effective towards Cs+. The sorbent consisting of titanium dioxide and cobalt hexacyanoferrate can be recommended for extraction of both Sr2+ and Cs+ ions.Документ Polymer-inorganic cation-exchangers containing zirconium hydrophosphate. Regeneration of uranium-loaded form(2018) Perlova, Olga; Dzyazko, Yulia; Perlova, Natalia; Ivanova, Inna; Palchik, AlexeyIt has been found that polymer-inorganic cation-exchangers, which contain nanoparticles of zirconium hydrophosphate, can be used many times for sorption of uranyl cations from diluted solutions. This is due to the possibility of practically complete regeneration of the loaded sorbents with diluted solutions of NaHCO3 or EDTA. The sample that includes the smallest embedded particles shows the highest regeneration rate.Встановлено, що органо-неорганічні катіоніти, що містять наночастинки гідрофосфату цирконію, можуть бути використані багаторазово для сорбції катіонів уранілу з розбавлених розчинів завдяки ефективній регенерації урранової форми цих сорбентів розбавленими розчинами NaHCO3 чи ЕДТА.Документ Sorption removal of uranium (VI) compounds with organic-inorganic ion-exchangers(2016) Perlova, Natalia; Perlova, Olga; Halutska, Iryna; Dzyazko, Yulia; Palchik, Alexey; Sazonova, ValentinaOrganic-inorganic composites based on ion exchange resins containing zirconium hydrophosphate (cation-exchanger) and hydrated zirconium dioxide (anion-exchanger) were applied to removal of soluble U(VI) compounds from modeling solutions. The advantages of the composites over the pristine resins are more significant sorption capacity, higher sorption rate and more facile regeneration.