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Carbon and zeolite-based composites for radionuclide and heavy metal sorption
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SYSNO ASEP 0565340 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Carbon and zeolite-based composites for radionuclide and heavy metal sorption Author(s) Smržová, Darina (UACH-T) ORCID, SAI, RID
Szatmáry, L. (CZ)
Ecorchard, Petra (UACH-T) SAI, RID, ORCID
Machálková, Aneta (UACH-T) SAI, ORCID, RID
Maříková, Monika (UACH-T) SAI, RID
Salačová, P. (CZ)
Straka, M. (CZ)Article number 12293 Source Title Heliyon. - : Elsevier - ISSN 2405-8440
Roč. 8, č. 12 (2022)Number of pages 9 s. Language eng - English Country GB - United Kingdom Keywords sorption ; radionuclides ; heavy metals ; synthetic zeolites Subject RIV CA - Inorganic Chemistry OECD category Inorganic and nuclear chemistry R&D Projects TH04030285 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) LM2018124 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UACH-T - RVO:61388980 UT WOS 000904100300016 EID SCOPUS 85147021868 DOI 10.1016/j.heliyon.2022.e12293 Annotation 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. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0338219
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