Publication:
Magnetic Nanosorbents Based on Bentonite and CoFe2O4 Spinel

Простая страница элемента
dc.contributor.authorKhodosova, N.
dc.contributor.authorNovikova, L.
dc.contributor.authorTomina, E.
dc.contributor.authorBelchinskaya, L.
dc.contributor.authorTyupina, E. A.
dc.contributor.authorТюпина, Екатерина Александровна
dc.date.accessioned2024-12-25T18:16:12Z
dc.date.available2024-12-25T18:16:12Z
dc.date.issued2022
dc.description.abstractNew magnetic nanocomposite sorbents were obtained by doping natural bentonite with nanosized CoFe2O4 spinel (10 and 20 wt.%). Nanocrystals of cobalt ferrite were synthesized by a citrate burning method. The structure and physical-chemical properties of the composites were characterized by XRD, XRF, TEM, BET, FTIR and Faraday balance magnetometry. During the formation of nanocomposites, 10–30 nm particles of cobalt ferrite occupied mainly the interparticle space of Fe-aluminosilicate that significantly changed the particle morphology and composite porosity, but at the same time retained the structure of the 2:1 smectite layer. A combination of two functional properties of composites, adsorption and magnetism has been found. The adsorption capacity of magnetic nanosorbents exceeded this parameter for bentonite and spinel. Despite the decrease in the adsorption volume, pore size and specific surface area of the composite material relative to bentonite, the sorption activity of the composite increases by 12%, which indicated the influence of the magnetic component on the sorption process. FTIR data confirmed the mechanism of formaldehyde sorption by the composite sorbent. The production of a magnetic nanosorbent opens up new possibilities for controlling the sorption processes and makes it possible to selectively separate the sorbent from the adsorption medium by the action of a magnetic field.
dc.identifier.citationMagnetic Nanosorbents Based on Bentonite and CoFe2O4 Spinel / Khodosova, N. [et al.] // Minerals. - 2022. - 12. - № 11. - 10.3390/min12111474
dc.identifier.doi10.3390/min12111474
dc.identifier.urihttps://www.doi.org/10.3390/min12111474
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85149532885&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000895580900001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/28372
dc.relation.ispartofMinerals
dc.titleMagnetic Nanosorbents Based on Bentonite and CoFe2O4 Spinel
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue11
oaire.citation.volume12
relation.isAuthorOfPublication4c5cd1d4-3ad2-4d74-9306-9f3978be8b37
relation.isAuthorOfPublication.latestForDiscovery4c5cd1d4-3ad2-4d74-9306-9f3978be8b37
relation.isOrgUnitOfPublicationba0b4738-e6bd-4285-bda5-16ab2240dbd1
relation.isOrgUnitOfPublication.latestForDiscoveryba0b4738-e6bd-4285-bda5-16ab2240dbd1
Файлы
Коллекции
Публикации