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Magnetic modification of Ghassoul

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F18%3A10240963" target="_blank" >RIV/61989100:27640/18:10240963 - isvavai.cz</a>

  • Výsledek na webu

    <a href="https://www.sciencedirect.com/science/article/pii/S2214785318309520?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214785318309520?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.matpr.2018.05.056" target="_blank" >10.1016/j.matpr.2018.05.056</a>

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Magnetic modification of Ghassoul

  • Popis výsledku v původním jazyce

    Ghassoul, a unique mixture of stevensite and sepiolite, comes from the only known deposit in the world, Jbel Ghassoul in Morocco. In the last decade, Ghassoul attracted interest of Moroccan, Spanish and French materials engineers. Ghassoul was found to be very good adsorbent of metal and organic polutants and it can be also used for the preparation of cordierite ceramics. The presented study is focused on the preparation and study of magnetically modified Ghassoul. The microwave assisted precipitation of iron oxides from water solution using FeSO4.7H2O as precursor was used for preparation magnetic form of Ghassoul. Both the native material and the prepared magnetic Ghassoul were characterized by chemical and phase analysis (rentgen fluorescence analysis, total content of selected elements after acid decomposition in acid mixture was determined by atomic absorption spectroscopy with flame atomization and atomic emission spectrometry with inductively coupled plasma, content of Fe(II) according to the Czech standard CSN 72 2041 and powder X-ray diffraction methods). The magnetic iron oxides on the Ghassoul surface were observed by transmission electron microscope. Saturation magnetization and coercive field were obtained from hysteresis loops measured using the Vibrating Sample Magnetometer. Verification of adsorption properties was carried out with Cd2+ ions. It was proved that the prepared magnetically modified clay minerals contained iron oxides nanoparticles of  Fe2O3 and Fe3O4 which were very strongly bound on the surface. The magnetic measurements have detected that saturation magnetization was approximately two orders higher and coercive field a little bit lower in comparison with the natural clay sample. The results show that the presence of magnetic iron particles on Ghassoul surface did not affect the adsorption properties negatively but make magnetic separation of adsorbent from aqueous solution possible.

  • Název v anglickém jazyce

    Magnetic modification of Ghassoul

  • Popis výsledku anglicky

    Ghassoul, a unique mixture of stevensite and sepiolite, comes from the only known deposit in the world, Jbel Ghassoul in Morocco. In the last decade, Ghassoul attracted interest of Moroccan, Spanish and French materials engineers. Ghassoul was found to be very good adsorbent of metal and organic polutants and it can be also used for the preparation of cordierite ceramics. The presented study is focused on the preparation and study of magnetically modified Ghassoul. The microwave assisted precipitation of iron oxides from water solution using FeSO4.7H2O as precursor was used for preparation magnetic form of Ghassoul. Both the native material and the prepared magnetic Ghassoul were characterized by chemical and phase analysis (rentgen fluorescence analysis, total content of selected elements after acid decomposition in acid mixture was determined by atomic absorption spectroscopy with flame atomization and atomic emission spectrometry with inductively coupled plasma, content of Fe(II) according to the Czech standard CSN 72 2041 and powder X-ray diffraction methods). The magnetic iron oxides on the Ghassoul surface were observed by transmission electron microscope. Saturation magnetization and coercive field were obtained from hysteresis loops measured using the Vibrating Sample Magnetometer. Verification of adsorption properties was carried out with Cd2+ ions. It was proved that the prepared magnetically modified clay minerals contained iron oxides nanoparticles of  Fe2O3 and Fe3O4 which were very strongly bound on the surface. The magnetic measurements have detected that saturation magnetization was approximately two orders higher and coercive field a little bit lower in comparison with the natural clay sample. The results show that the presence of magnetic iron particles on Ghassoul surface did not affect the adsorption properties negatively but make magnetic separation of adsorbent from aqueous solution possible.

Klasifikace

  • Druh

    D - Stať ve sborníku

  • CEP obor

  • OECD FORD obor

    20501 - Materials engineering

Návaznosti výsledku

  • Projekt

  • Návaznosti

    S - Specificky vyzkum na vysokych skolach

Ostatní

  • Rok uplatnění

    2018

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název statě ve sborníku

    Materials Today: Proceedings. Volume 5, Supplement 1

  • ISBN

  • ISSN

    2214-7853

  • e-ISSN

  • Počet stran výsledku

    7

  • Strana od-do

    45-51

  • Název nakladatele

    Elsevier

  • Místo vydání

    Amsterdam

  • Místo konání akce

    Ostrava

  • Datum konání akce

    22. 5. 2017

  • Typ akce podle státní příslušnosti

    WRD - Celosvětová akce

  • Kód UT WoS článku

    000482182400007