Solvothermal synthesis of magnetic FexOy/C nanocomposites used as adsorbents for the removal of methylene blue from wastewater

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10312408" target="_blank" >RIV/00216208:11310/15:10312408 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10973-015-4641-x" target="_blank" >http://dx.doi.org/10.1007/s10973-015-4641-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-015-4641-x" target="_blank" >10.1007/s10973-015-4641-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Solvothermal synthesis of magnetic FexOy/C nanocomposites used as adsorbents for the removal of methylene blue from wastewater

Popis výsledku v původním jazyce

Magnetic iron oxides/carbon nanocomposites have been synthesized by a facile, one-step solvothermal method. XRD analysis evidenced the presence of a spinel phase in all samples, while FT-IR analysis suggested the presence of magnetite in the prepared samples. Mossbauer spectra, registered after 2 month, evidenced the complete transition of magnetite into maghemite. SEM images showed homogenous spherical nanoparticles with diameters up to 20 nm, smaller in case of the sample without carbon. The magneticmeasurements showed that the saturation magnetization (Ms) value decreases with the increase in carbon content in composites. The values of Ms were higher than 30 emu g(-1), allowing the magnetic separation of the adsorbents. The FexOy/C and FexOy/2C nanocomposites were tested as adsorbents for methylene blue; the removal efficiency has increased with the carbon content of the adsorbents. The kinetic studies revealed that the adsorption process followed the pseudo-second-order model and

Název v anglickém jazyce

Solvothermal synthesis of magnetic FexOy/C nanocomposites used as adsorbents for the removal of methylene blue from wastewater

Popis výsledku anglicky

Magnetic iron oxides/carbon nanocomposites have been synthesized by a facile, one-step solvothermal method. XRD analysis evidenced the presence of a spinel phase in all samples, while FT-IR analysis suggested the presence of magnetite in the prepared samples. Mossbauer spectra, registered after 2 month, evidenced the complete transition of magnetite into maghemite. SEM images showed homogenous spherical nanoparticles with diameters up to 20 nm, smaller in case of the sample without carbon. The magneticmeasurements showed that the saturation magnetization (Ms) value decreases with the increase in carbon content in composites. The values of Ms were higher than 30 emu g(-1), allowing the magnetic separation of the adsorbents. The FexOy/C and FexOy/2C nanocomposites were tested as adsorbents for methylene blue; the removal efficiency has increased with the carbon content of the adsorbents. The kinetic studies revealed that the adsorption process followed the pseudo-second-order model and

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

—

Svazek periodika

121

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

13

Strana od-do

989-1001

Kód UT WoS článku

000359746900005

EID výsledku v databázi Scopus

2-s2.0-84939470479