Carbon and zeolite-based composites for radionuclide and heavy metal sorption

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F22%3A00565340" target="_blank" >RIV/61388980:_____/22:00565340 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46356088:_____/22:N0000018

Výsledek na webu

<a href="https://hdl.handle.net/11104/0338219" target="_blank" >https://hdl.handle.net/11104/0338219</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.heliyon.2022.e12293" target="_blank" >10.1016/j.heliyon.2022.e12293</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Carbon and zeolite-based composites for radionuclide and heavy metal sorption

Popis výsledku v původním jazyce

Zeolites have been investigated as sorbents of heavy metals from water. Since graphene oxide was already reported as promising radionuclide sorbent, we developed composite materials containing both a synthetic zeolite (type A, P or Y) and graphene oxide to be multifunctional sorbents. The extension of multifunctionality of sorbents was done by presence of third component, exfoliated graphite, to have additional properties as conductivity. The changing sorption activities of a composite was studied depending on its composition and functional modification. The composites characterized by X-ray powder diffraction, Raman, FTIR spectroscopy and scanning electron microscopy, were tested for sorption of selected radionuclides (134Cs+, 85Sr2+ 29 )and heavy metals (Pb2+, Cd2+ 30 ). The dependency on composition was found in connection with a high sorption of Pb2+ and Cd2+ 31 . Finally, optimized multifunctional sorbents (Gr-GO-COOH-A in ratio 40:40:20 and Gr:GO:A in ratio 25:25:50) were found to keep interesting high sorption activities for heavy metals and radionuclides with good conductivity properties.

Název v anglickém jazyce

Carbon and zeolite-based composites for radionuclide and heavy metal sorption

Popis výsledku anglicky

Zeolites have been investigated as sorbents of heavy metals from water. Since graphene oxide was already reported as promising radionuclide sorbent, we developed composite materials containing both a synthetic zeolite (type A, P or Y) and graphene oxide to be multifunctional sorbents. The extension of multifunctionality of sorbents was done by presence of third component, exfoliated graphite, to have additional properties as conductivity. The changing sorption activities of a composite was studied depending on its composition and functional modification. The composites characterized by X-ray powder diffraction, Raman, FTIR spectroscopy and scanning electron microscopy, were tested for sorption of selected radionuclides (134Cs+, 85Sr2+ 29 )and heavy metals (Pb2+, Cd2+ 30 ). The dependency on composition was found in connection with a high sorption of Pb2+ and Cd2+ 31 . Finally, optimized multifunctional sorbents (Gr-GO-COOH-A in ratio 40:40:20 and Gr:GO:A in ratio 25:25:50) were found to keep interesting high sorption activities for heavy metals and radionuclides with good conductivity properties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Heliyon

ISSN

2405-8440

e-ISSN

2405-8440

Svazek periodika

8

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

12293

Kód UT WoS článku

000904100300016

EID výsledku v databázi Scopus

2-s2.0-85147021868