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Pregled bibliografske jedinice broj: 1011975

Microstructural characterization of radiolytically synthesized feroxyhyte and magnetite nanoparticles


Marić, Ivan; Dražić, Goran; Štefanić, Goran; Zadro, Krešo; Gotić, Marijan; Jurkin, Tanja
Microstructural characterization of radiolytically synthesized feroxyhyte and magnetite nanoparticles // Solid-State Science & Research Meeting Book of Abstracts / Biliškov, Nikola (ur.).
Zagreb: Institut Ruđer Bošković, 2019. str. 79-79 (poster, međunarodna recenzija, sažetak, znanstveni)


CROSBI ID: 1011975 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Microstructural characterization of radiolytically synthesized feroxyhyte and magnetite nanoparticles

Autori
Marić, Ivan ; Dražić, Goran ; Štefanić, Goran ; Zadro, Krešo ; Gotić, Marijan ; Jurkin, Tanja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Solid-State Science & Research Meeting Book of Abstracts / Biliškov, Nikola - Zagreb : Institut Ruđer Bošković, 2019, 79-79

ISBN
978-953-7941-32-1

Skup
Solid-State Science & Research Meeting 2019

Mjesto i datum
Zagreb, Hrvatska, 27-29.06.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
gamma-irradiation ; amino dextran ; green rust ; iron(II) hydroxide ; feroxyhyte ; magnetite

Sažetak
Iron(III) chloride deaerated alkaline aqueous colloidal solutions in the presence of 2- propanol and DEAE-dextran (diethylaminoethyl- dextran hydrochloride) were γ-irradiated with doses of 36 and 130 kGy. The dose rates were ~7 and ~31 kGy h-1. Substoichiometric magnetite nanoparticles ~4-5 nm in size formed at a dose of 36 kGy. The dose rate had an effect on the stoichiometry of the formed magnetite. At a dose of 130 kGy and the lower dose rate, the anisotropic d-FeOOH magnetic discs with a diameter of ~256 nm and thickness of ~40 nm self-assembled. At a dose of 130 kGy and the higher dose rate, the rolled rod-like d-FeOOH magnetic nanoparticles were formed having the diffraction patterns characteristic of tubular structures. The magnetic measurements showed exceptional intrinsic room-temperature magnetic properties of both d-FeOOH nanostructures with the Curie temperature above 300 K. In order to ascertain the formation of Fe(II) intermediate products prior to their oxidation, the γ- irradiated samples were isolated by admixing glycerol. The amounts of Fe(II) in glycerol- isolated solid samples were 9.9 % and 86.0 %, as determined by Mössbauer spectroscopy at doses of 36 and 130 kGy, respectively. Carbonate Green Rust I, GR(CO32-), and Fe(OH)2 intermediate phases were confirmed by XRD and Mössbauer spectroscopy.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekti:
HRZZ-UIP-2017-05-7337 - Utjecaj polimera na radiolitičku sintezu magnetskih nanočestica (POLRADNANOP) (Jurkin, Tanja, HRZZ - 2017-05) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Tanja Jurkin (autor)

Avatar Url Marijan Gotić (autor)

Avatar Url Krešo Zadro (autor)

Avatar Url Goran Štefanić (autor)

Avatar Url Ivan Marić (autor)


Citiraj ovu publikaciju:

Marić, Ivan; Dražić, Goran; Štefanić, Goran; Zadro, Krešo; Gotić, Marijan; Jurkin, Tanja
Microstructural characterization of radiolytically synthesized feroxyhyte and magnetite nanoparticles // Solid-State Science & Research Meeting Book of Abstracts / Biliškov, Nikola (ur.).
Zagreb: Institut Ruđer Bošković, 2019. str. 79-79 (poster, međunarodna recenzija, sažetak, znanstveni)
Marić, I., Dražić, G., Štefanić, G., Zadro, K., Gotić, M. & Jurkin, T. (2019) Microstructural characterization of radiolytically synthesized feroxyhyte and magnetite nanoparticles. U: Biliškov, N. (ur.)Solid-State Science & Research Meeting Book of Abstracts.
@article{article, author = {Mari\'{c}, Ivan and Dra\v{z}i\'{c}, Goran and \v{S}tefani\'{c}, Goran and Zadro, Kre\v{s}o and Goti\'{c}, Marijan and Jurkin, Tanja}, editor = {Bili\v{s}kov, N.}, year = {2019}, pages = {79-79}, keywords = {gamma-irradiation, amino dextran, green rust, iron(II) hydroxide, feroxyhyte, magnetite}, isbn = {978-953-7941-32-1}, title = {Microstructural characterization of radiolytically synthesized feroxyhyte and magnetite nanoparticles}, keyword = {gamma-irradiation, amino dextran, green rust, iron(II) hydroxide, feroxyhyte, magnetite}, publisher = {Institut Ru\djer Bo\v{s}kovi\'{c}}, publisherplace = {Zagreb, Hrvatska} }
@article{article, author = {Mari\'{c}, Ivan and Dra\v{z}i\'{c}, Goran and \v{S}tefani\'{c}, Goran and Zadro, Kre\v{s}o and Goti\'{c}, Marijan and Jurkin, Tanja}, editor = {Bili\v{s}kov, N.}, year = {2019}, pages = {79-79}, keywords = {gamma-irradiation, amino dextran, green rust, iron(II) hydroxide, feroxyhyte, magnetite}, isbn = {978-953-7941-32-1}, title = {Microstructural characterization of radiolytically synthesized feroxyhyte and magnetite nanoparticles}, keyword = {gamma-irradiation, amino dextran, green rust, iron(II) hydroxide, feroxyhyte, magnetite}, publisher = {Institut Ru\djer Bo\v{s}kovi\'{c}}, publisherplace = {Zagreb, Hrvatska} }




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