Modelling and adsorption studies of removal uranium (VI) ions on synthesised zeolite NaY

Autor:	Houhoune Fatima, Barkat Mahfoud, Amokrane Samira, Nibou Djamel
Rok vydání:	2013
Předmět:	Exothermic reaction Aqueous solution Chemistry Inorganic chemistry Langmuir adsorption model chemistry.chemical_element Ocean Engineering Factorial experiment Uranium Pollution Ion symbols.namesake Adsorption symbols Zeolite Water Science and Technology
Zdroj:	Desalination and Water Treatment. 51:5583-5591
ISSN:	1944-3986 1944-3994
DOI:	10.1080/19443994.2013.769756
Popis:	The adsorption of uranium (VI) from aqueous solutions on synthesised zeolite NaY has been studied and the effect of the solution pH, the initial concentration C, the solid/liquid ratio R and the temperature T was investigated. The adsorption process has been modelled using a 23 full factorial design in order to study the influence of the main effects and interaction parameters and to optimise the adsorption process. The pH is the most significant parameter affecting uranium (VI) ions’ distribution on zeolite NaY. The equilibrium isotherm has been found to follow the Langmuir model. Kinetic studies showed that the pseudo-second-order model correlates our experimental data. Thermodynamic parameters showed the exothermic heat of adsorption and the spontaneity of the adsorption process.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1e7abfbbcde2d539a811e69d5eef6e7f https://doi.org/10.1080/19443994.2013.769756 Zobrazit plný text záznamu