Polymeric membranes grafted by ionizing radiation for uranium adsorption
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Brazilian Journal of Radiation Sciences
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Fuel elements production by IPEN-CNEN has a perspective to be increased
to attend Brazilian Multipurpose Reactor, under construction. This production generates
liquid waste that requires proper treatment to minimize environmental impacts,
promoting more sustainable practices. Considering the rise on nuclear power energy
generation, and that there is global lack of terrestrial uranium sources, the increasing
demand for this element has been leading to uranium exploit alternatives. So, several
researches are available on uranium adsorption from sea water. Adsorption is one of
process for removing metals from wastewater, due to its high selectivity and low
environmental impact. Taking into account this scenary, in this study, Winged
Polypropylene (WPP) fabric was grafted via ionizing radiation (RIG) with the monomer
Bis[2-(methacryloyloxy) ethyl] phosphate (B2MP). RIG promotes functionalization of
WPP with phosphate groups that are prone to capture U from solution. Synthesized
WPP-g-polyB2MP membranes were characterized by Scanning electron microscopy
(SEM), Raman spectroscopy, thermogravimetry and, uranium adsorption capacity by
ICP-OES and gamma spectrometry. WPP-g-polyB2MP membranes were successfully
synthesized by ionizing radiation grafting direct method. Reaction parameters, like
reactants concentration, radiation absorbed dose, affected the degree of grafting (DoG).
By physico-chemical characterization results it was possible to observe DoG differences
with parameters variation. Optimization of these parameters was sought in order to
achieve uranium adsorption, and to increase the adsorption capacity of the membrane.
Como referenciar
CARDOSO, A.C.P.; GARCIA, R.H.L.; CARVALHO, E.F.U. de; AL SHEIKHLY, M.; KODAMA, Y. Polymeric membranes grafted by ionizing radiation for uranium adsorption. Brazilian Journal of Radiation Sciences, v. 12, n. 4A, p. 1-21, 2024. DOI: 10.15392/2319-0612.2024.2607. Disponível em: https://repositorio.ipen.br/handle/123456789/49065. Acesso em: 20 Jan 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.