Zn-substituted iron oxide nanoparticles from thermal decomposition and their thermally treated derivatives for magnetic solid-phase extraction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00532537" target="_blank" >RIV/68378271:_____/20:00532537 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/20:10420838 RIV/60461373:22340/20:43920235 RIV/00216305:26620/20:PU140226

Výsledek na webu

<a href="https://doi.org/10.1016/j.jmmm.2019.166083" target="_blank" >https://doi.org/10.1016/j.jmmm.2019.166083</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmmm.2019.166083" target="_blank" >10.1016/j.jmmm.2019.166083</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Zn-substituted iron oxide nanoparticles from thermal decomposition and their thermally treated derivatives for magnetic solid-phase extraction

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Zn-substituted iron oxide nanoparticles from thermal decomposition and their thermally treated derivatives for magnetic solid-phase extraction

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Magnetism and Magnetic Materials

ISSN

0304-8853

e-ISSN

—

Svazek periodika

498

Číslo periodika v rámci svazku

Mar

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000504845300130

EID výsledku v databázi Scopus

2-s2.0-85075374899