Removal of U (VI) from acidic and alkaline aqueous solutions by zero-valent iron nanoparticles

Autor:	N. Pliatsikas, Nikolaos Vouroutzis, Anastasia Babaiti, Panagiotis Misaelides, Fotini Noli
Rok vydání:	2018
Předmět:	Langmuir Zerovalent iron Aqueous solution Health Toxicology and Mutagenesis Inorganic chemistry Public Health Environmental and Occupational Health chemistry.chemical_element Nanoparticle Sorption 010501 environmental sciences Uranium 010403 inorganic & nuclear chemistry 01 natural sciences Pollution 0104 chemical sciences Analytical Chemistry Nuclear Energy and Engineering X-ray photoelectron spectroscopy chemistry Radiology Nuclear Medicine and imaging Freundlich equation Spectroscopy 0105 earth and related environmental sciences
Zdroj:	Journal of Radioanalytical and Nuclear Chemistry. 318:2107-2115
ISSN:	1588-2780 0236-5731
Popis:	Removal of uranium (VI) from aqueous solutions by zero-valent iron nanoparticles (nZVI) was investigated in both acidic and alkaline solutions in absence and presence of counter-ions (0.1 M NaNO3). Langmuir and Freundlich equations were applied to model the sorption isotherms whereas the data obtained at 15, 25, 35 and 45 °C from the kinetic experiments were successfully reproduced by a pseudo-second order equation and used for calculation of thermodynamic parameters. Electron microscopy (SEM/EDS), X-ray photoelectron spectroscopy and UV-Fluorescence were applied to explore possible mechanisms. The U-removal seems to be due mainly to sorption followed by U(VI) reduction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::71de2b83ce909c0bfb99b688b9ab0605 https://doi.org/10.1007/s10967-018-6293-3 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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