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Sorption of137cs and90sr on organic sorbents

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dc.contributor.authorBelousov, P.
dc.contributor.authorSemenkova, A.
dc.contributor.authorIzosimova, Y.
dc.contributor.authorTolpeshta, I.
dc.contributor.authorTyupina, E.
dc.contributor.authorТюпина, Екатерина Александровна
dc.date.accessioned2024-11-30T00:17:44Z
dc.date.available2024-11-30T00:17:44Z
dc.date.issued2021
dc.description.abstract© 2021 by the authors. Licensee MDPI, Basel, Switzerland.The present study examines the sorption of Cs (I) and Sr (II) on organic sorbents in the pH range from 2 to 10, as well as the mechanisms of their binding. In order to determine the influence of the physical properties and the quantity of functional groups of the organic sorbents on sorption, experiments were carried out on organic materials of varying degrees of metamorphism: high-moor peat, hard and brown coals and shungite. A detailed description of their mineral composition, cation exchange capacity, buffering capacity and elemental composition of sorbents is provided. XRD, XRF, SEM and BET adsorption methods were used for assaying. As a result of the conducted research, it can be concluded that Sr (II) showed a higher sorption per unit specific surface area than Cs (I) in the studied range of concentrations and pH values. Sr (II) sorption decreases in the following order: high-moor peat > brown coal > shungite > hard coal. The sorption of Cs (I) is highest on brown coal and lesser for high-moor peat, shungite and hard coal. It is suggested that Cs (I) and Sr (II) can be fixed on carboxyl functional groups and Cs (I), possibly, in insignificant amounts on phenolic hydroxyls of all four studied organic sorbents.
dc.identifier.citationSorption of137cs and90sr on organic sorbents / Belousov, P. [et al.] // Applied Sciences (Switzerland). - 2021. - 11. - № 23. - 10.3390/app112311531
dc.identifier.doi10.3390/app112311531
dc.identifier.urihttps://www.doi.org/10.3390/app112311531
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85120796331&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000735067400001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/25077
dc.relation.ispartofApplied Sciences (Switzerland)
dc.titleSorption of137cs and90sr on organic sorbents
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue23
oaire.citation.volume11
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