SORPTION PROPERTIES OF SELECTED OXIDIC NANOPARTICLES FOR THE TREATMENT OF SPENT DECONTAMINATION SOLUTIONS BASED ON CITRIC ACID

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F18%3A00333989" target="_blank" >RIV/68407700:21340/18:00333989 - isvavai.cz</a>

Výsledek na webu

<a href="https://indico.fjfi.cvut.cz/event/82/attachments/701/913/Booklet_of_Abstracts_CCSSS_162_2018_49_268.pdf" target="_blank" >https://indico.fjfi.cvut.cz/event/82/attachments/701/913/Booklet_of_Abstracts_CCSSS_162_2018_49_268.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

SORPTION PROPERTIES OF SELECTED OXIDIC NANOPARTICLES FOR THE TREATMENT OF SPENT DECONTAMINATION SOLUTIONS BASED ON CITRIC ACID

Popis výsledku v původním jazyce

Nanoparticles of metal oxides with high specific surface area show high adsorption towards selected radionuclides with fast kinetics. Metallic nanooxides were tested for separation of selected radionuclides (Am-241, Co-60, Cs-137, Sr-90) from simulated spent decontamination solutions containing citric acid. Following materials, prepared by photoinduced synthesis, were tested: NiO, NiO/TiO2 and ZnO:Cu. Buffer solutions with concentration of citric anions 0.01 mol/L were tested. Sorption properties (sorption kinetics and weight distribution ratios) were investigated in the course of the experiments performed in pH range 2–12. Additionally, the influence of the presence of surfactants on the sorption was studied. The results obtained show that metal oxides in the form of nanoparticles adsorb radionuclides rather in the basic pH range. Outcomes will be used for the development of method for in situ treatment of spent decontamination solutions containing citric acid produced during radiation accident.

Název v anglickém jazyce

SORPTION PROPERTIES OF SELECTED OXIDIC NANOPARTICLES FOR THE TREATMENT OF SPENT DECONTAMINATION SOLUTIONS BASED ON CITRIC ACID

Popis výsledku anglicky

Nanoparticles of metal oxides with high specific surface area show high adsorption towards selected radionuclides with fast kinetics. Metallic nanooxides were tested for separation of selected radionuclides (Am-241, Co-60, Cs-137, Sr-90) from simulated spent decontamination solutions containing citric acid. Following materials, prepared by photoinduced synthesis, were tested: NiO, NiO/TiO2 and ZnO:Cu. Buffer solutions with concentration of citric anions 0.01 mol/L were tested. Sorption properties (sorption kinetics and weight distribution ratios) were investigated in the course of the experiments performed in pH range 2–12. Additionally, the influence of the presence of surfactants on the sorption was studied. The results obtained show that metal oxides in the form of nanoparticles adsorb radionuclides rather in the basic pH range. Outcomes will be used for the development of method for in situ treatment of spent decontamination solutions containing citric acid produced during radiation accident.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/VI20172020106" target="_blank" >VI20172020106: Kompozitní filtry pro čištění radioaktivních oplachových roztoků</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů