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Zn-substituted iron oxide nanoparticles from thermal decomposition and their thermally treated derivatives for magnetic solid-phase extraction
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SYSNO ASEP 0532537 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Zn-substituted iron oxide nanoparticles from thermal decomposition and their thermally treated derivatives for magnetic solid-phase extraction Author(s) Kubíčková, Lenka (FZU-D) ORCID
Koktan, Jakub (FZU-D) RID
Kořínková, Tereza (FZU-D)
Klementová, Mariana (FZU-D) RID, ORCID
Kmječ, T. (CZ)
Kohout, J. (CZ)
Weidenkaff, A. (DE)
Kaman, Ondřej (FZU-D) RID, ORCIDNumber of authors 8 Article number 166083 Source Title Journal of Magnetism and Magnetic Materials. - : Elsevier - ISSN 0304-8853
Roč. 498, Mar (2020), s. 1-10Number of pages 10 s. Language eng - English Country NL - Netherlands Keywords Mossbauer spectroscopy ; magnetic nanoparticles ; magnetite ; thermal decomposition ; steroid pollutants ; zinc ferrite Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Nano-materials (production and properties) R&D Projects GA18-13323S GA ČR - Czech Science Foundation (CSF) LM2015087 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000504845300130 EID SCOPUS 85075374899 DOI 10.1016/j.jmmm.2019.166083 Annotation Controlled thermal decomposition of zinc and iron acetylacetonates in the presence of oleic acid and oleylamine provided surfactant-capped magnetic nanoparticles with narrow size distribution and the mean diameter of ≈15 nm. The combined study by XRD, XRF and Mössbauer spectroscopy revealed: (i) the actual ratio of Zn:Fe was considerably lower in the product compared to the initial ratio of metal precursors, (ii) pure stoichiometric Zn-doped magnetite system with no signatures of oxidation to maghemite was formed, (iii) Zn2+ ions were distributed at both tetrahedral and octahedral sites. Furthermore, carbon-coated nanoparticles were achieved by pyrolysis of the surfactants at 500 °C, providing a potential sorbent of organic pollutants. Preliminary experiments with magnetic solid-phase extraction of β-estradiol from aqueous solutions evidenced applicability and reusability of the carbon-coated product in the separation of steroid pollutants. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2021 Electronic address https://doi.org/10.1016/j.jmmm.2019.166083
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