MnFe2O4/ZHETISAY composite as a novel magnetic material for adsorption of Ni(II)

Baimuratova, Zhaina; Kalmakhanova, Marzhan; Shynazbekova, SH.S.; Kybyraeva, N.S.; Díaz de Tuesta, Jose Luis; Gomes, Helder

Publication

MnFe2O4/ZHETISAY composite as a novel magnetic material for adsorption of Ni(II)

2022Journal article

dc.contributor.author	Baimuratova, Zhaina
dc.contributor.author	Kalmakhanova, Marzhan
dc.contributor.author	Shynazbekova, SH.S.
dc.contributor.author	Kybyraeva, N.S.
dc.contributor.author	Díaz de Tuesta, Jose Luis
dc.contributor.author	Gomes, Helder
dc.date.accessioned	2022-11-21T16:06:26Z
dc.date.available	2022-11-21T16:06:26Z
dc.date.issued	2022
dc.description.abstract	This paper deals with the preparation of magnetic adsorbents from natural clays for the adsorption of Ni(II) from aqueous matrices. The phase composition and structure parameters of natural clays and their modified forms, as well as their application as adsorbing agents for the purification of drinking water and their sources were studied. In the study, natural clays from the Zhetisay deposit of Kazakhstan were used to obtain magnetic composites by chemical coprecipitation and applied as effective adsorbents to remove Ni(II) from water. The formation of sorbents by magnetic nanoparticles is an urgent task of our time. This is due to the needs of various branches of science and technology in magnetically controlled sorbents. The advantage of such sorbents in comparison with natural sorbents is the ability to control them using a magnetic field. Sorbents with magnetic properties are used for contact cleaning of substances, which greatly simplifies the sorption process and the completeness of the sorbent processing. The use of such materials makes it possible to replace the mechanical separation stage, which is one of the labor-intensive stages of this process. Magnetic pillared clays were obtained by intercalation of iron and manganese cations in the region between the clay silicate layers, upon hydrolysis of a solution of Fe2(SO4)3·9H2O and MnCl2·4H2O with NaOH. The intercalated clay is then dried and calcined at 400°C for 3 h. The basic physical and chemical properties were stu died by XRD, elemental analysis, FTIR and atomic emission spectral analysis (AES). The obtained magnetic pillared clays (MnFe2O4/Zhetisay) showed better characteristics than natural clays. The results of adsorption revealed that the optimal adsorption conditions were observed at pH 6.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.doi	10.32014/2022.2518-170X.160	pt_PT
dc.identifier.issn	2224-5278
dc.identifier.uri	http://hdl.handle.net/10198/26131
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.publisher	National Academy of Sciences of the Republic of Kazakhstan	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Heavy metal	pt_PT
dc.subject	Magnetic pillared clays	pt_PT
dc.subject	Adsorption	pt_PT
dc.subject	Modification	pt_PT
dc.subject	Modification	pt_PT
dc.subject	Water treatment	pt_PT
dc.title	MnFe2O4/ZHETISAY composite as a novel magnetic material for adsorption of Ni(II)	pt_PT
dc.type	journal article
dspace.entity.type	Publication
oaire.citation.endPage	72	pt_PT
oaire.citation.issue	452	pt_PT
oaire.citation.startPage	58	pt_PT
oaire.citation.title	SERIES OF GEOLOGY AND TECHNICAL SCIENCES	pt_PT
oaire.citation.volume	2	pt_PT
person.familyName	Díaz de Tuesta
person.familyName	Gomes
person.givenName	Jose Luis
person.givenName	Helder
person.identifier.ciencia-id	7A1F-022B-7DBF
person.identifier.ciencia-id	6218-1E19-13EE
person.identifier.orcid	0000-0003-2408-087X
person.identifier.orcid	0000-0001-6898-2408
person.identifier.rid	D-9785-2017
person.identifier.scopus-author-id	55755821600
rcaap.rights	openAccess	pt_PT
rcaap.type	article	pt_PT
relation.isAuthorOfPublication	2ad0465f-5f8a-4b14-90f5-bf85996f9ce1
relation.isAuthorOfPublication	0eb96337-224a-4339-9918-334436fbbb99
relation.isAuthorOfPublication.latestForDiscovery	2ad0465f-5f8a-4b14-90f5-bf85996f9ce1