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Information × Registration Number 0221U102446, 0118U003018 , R & D reports Title New sorbents, functionalized and modified nanomaterials with magnetic properties, to remove ecotoxicants from aqueous media popup.stage_title Head Liubymova Yuliia S, Кандидат філологічних наук Registration Date 03-02-2021 Organization A.V Dumansky Institute of Colloid Chemistry and Water Chemistry popup.description2  Objects of research - sorbents - zinc-aluminum layered double hydroxides (LDH) and their composites with magnetic properties. The aim of this work is to study the sorption ability of new sorption materials functionalized with EDTA- ions and modified with nanoparticles with magnetic properties to extract U(VI) and Eu(III) (a chemical analogue of radionuclides Am and other TUE), by controlling the structure and phase composition there of X-ray method and other physicochemical methods, in particular, IR-spectroscopy. Research methods - X-ray, atomic absorption, spectrophotometric, sorption in static conditions. Main results: sorption extraction of radionuclides by EDTA forms of Zn,Al-LDH and their magnetic composites was investigated. It has been shown that sorption materials with magnetic properties are sufficiently effective for sorption extraction of U(VI) and Eu(III) from aqueous media, as a chemical analogue of Me(III), including Am radionuclides from large volumes of water. A sorption mechanism is considered, which primarily depends on the chemical nature of radionuclides (domination of complexation or a tendency to hydrolysis), as well as their concentration in solution, which is especially important when extracting radionuclides. In addition, for elements prone to hydrolysis, in this case, for example, for Eu(III), there is practically no single sorption mechanism for all pH values of the solution. A study of the sorption extraction of 90Sr from aqueous media by sorbents based on the bentonite of the Oglanlynsky deposit and their composites with magnetite showed that sorbents can be used to treat large volumes of radioactively contaminated waters. Field of application - environmental protection. Product Description popup.authors Demutcka Lуudmyla M. Demchenko Victor Ya. Zub Vira Ya. Karmanova Iryna M. Kobez Svitlana O. Kosorukov Oleksandr O. Kulichenko Sergiy А. Puzyrna Liubov M. Pshinko Galyna M. Yurlova Lуudmyla Yu. Yatsyk Bogdan P. popup.nrat_date 2021-02-03 Close