Carbon and zeolite-based composites for radionuclide and heavy metal sorption
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...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844022035812 |
| _version_ | 1797960912997449728 |
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| author | Darina Smržová Lórant Szatmáry Petra Ecorchard Aneta Machálková Monika Maříková Petra Salačová Martin Straka |
| author_facet | Darina Smržová Lórant Szatmáry Petra Ecorchard Aneta Machálková Monika Maříková Petra Salačová Martin Straka |
| author_sort | Darina Smržová |
| collection | DOAJ |
| description | 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+) and heavy metals (Pb2+, Cd2+). The dependency on composition was found in connection with a high sorption of Pb2+ and Cd2+. 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. |
| first_indexed | 2024-04-11T00:51:25Z |
| format | Article |
| id | doaj.art-a37baa2500f6476a806957dd77524fc6 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-11T00:51:25Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-a37baa2500f6476a806957dd77524fc62023-01-05T08:39:48ZengElsevierHeliyon2405-84402022-12-01812e12293Carbon and zeolite-based composites for radionuclide and heavy metal sorptionDarina Smržová0Lórant Szatmáry1Petra Ecorchard2Aneta Machálková3Monika Maříková4Petra Salačová5Martin Straka6Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68, Řež, Czech RepublicFuel Cycle Chemistry Department, ÚJV Řež a.s, 250 68, Husinec Řež, Czech RepublicInstitute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68, Řež, Czech Republic; Corresponding author.Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68, Řež, Czech RepublicInstitute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-Řež 1001, 250 68, Řež, Czech RepublicFuel Cycle Chemistry Department, ÚJV Řež a.s, 250 68, Husinec Řež, Czech RepublicFuel Cycle Chemistry Department, ÚJV Řež a.s, 250 68, Husinec Řež, Czech RepublicZeolites 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+) and heavy metals (Pb2+, Cd2+). The dependency on composition was found in connection with a high sorption of Pb2+ and Cd2+. 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.http://www.sciencedirect.com/science/article/pii/S2405844022035812SorptionRadionuclidesHeavy metalsSynthetic zeolites |
| spellingShingle | Darina Smržová Lórant Szatmáry Petra Ecorchard Aneta Machálková Monika Maříková Petra Salačová Martin Straka Carbon and zeolite-based composites for radionuclide and heavy metal sorption Heliyon Sorption Radionuclides Heavy metals Synthetic zeolites |
| title | Carbon and zeolite-based composites for radionuclide and heavy metal sorption |
| title_full | Carbon and zeolite-based composites for radionuclide and heavy metal sorption |
| title_fullStr | Carbon and zeolite-based composites for radionuclide and heavy metal sorption |
| title_full_unstemmed | Carbon and zeolite-based composites for radionuclide and heavy metal sorption |
| title_short | Carbon and zeolite-based composites for radionuclide and heavy metal sorption |
| title_sort | carbon and zeolite based composites for radionuclide and heavy metal sorption |
| topic | Sorption Radionuclides Heavy metals Synthetic zeolites |
| url | http://www.sciencedirect.com/science/article/pii/S2405844022035812 |
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