Sorption of 60Co(II) from aqueous solutions onto biosynthesized zinc oxide nanocomposites

Autor:	Zakaria A. Mekawy, Saber I. Moussa, Abeer M. Mousa, Gehan A. Dakroury, Karam F. Allan
Rok vydání:	2022
Předmět:	Nuclear Energy and Engineering Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Radiology Nuclear Medicine and imaging Pollution Spectroscopy Analytical Chemistry
Zdroj:	Journal of Radioanalytical and Nuclear Chemistry. 331:2331-2347
ISSN:	1588-2780 0236-5731
Popis:	Nano ZnO is biosynthesized using Lactobcillus sp. Poly Acrylic acid-co-Acrylonitrile/ZnO, PAACAN/ZnO, and poly Acrylic acid-co-Maleic acid/ZnO, PAACMA/ZnO, nancomposites were synthesized using 60Co γ-rays. PAACAN/ZnO and PAACMA/ZnO nanocomposites were characterized and used as sorbents for 60Co(II) radionuclide. The monolayer adsorption capacities of 60Co(II) onto PAACMA/ZnO and PAACAN/ZnO are 18.235, 7.105 mgg−1, respectively at pH 4.5 and 20 °C. The sorption reaction has a pseudo 2nd order mechanism. 0.1 M EDTA could be used as an eluent for desorption. The desorption efficiencies of 60Co(II) from PAACAN/ZnO and PAACMA/ZnO were 67.51 and 84.85%, respectively. The sorption process is endothermic and spontaneous.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d09e4ab6d32e1fa92f6c9e53ebd69427 https://doi.org/10.1007/s10967-022-08292-3 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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