Adsorption of caesium from aqueous solution using cerium molybdate–pan composite

Autor:	M. Naushad, Hedayat Azizpour, Reza Zarghami, Morteza Moradi, R. Saberi, A. Nilchi
Rok vydání:	2012
Předmět:	Aqueous solution Ecology Ion exchange Chemistry Inorganic chemistry chemistry.chemical_element Sorption Thermogravimetry Cerium Adsorption Caesium Desorption General Earth and Planetary Sciences Ecology Evolution Behavior and Systematics General Environmental Science
Zdroj:	Chemistry and Ecology. 28:169-185
ISSN:	1029-0370 0275-7540
Popis:	In this study, a cerium molybdate–polyacrylonitrile (CM–PAN) composite ion exchanger was synthesised and its characteristics were determined by X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetry (TGA), specific area measurement (BET), X-ray fluorescence and CHN elemental analyses. The adsorption of caesium from aqueous solutions by CM–PAN composite was investigated under batch and continuous conditions. The distribution coefficient of caesium on the composite sorbent was studied as a function of pH, solution temperature and the presence of interfering cations, and the optimum conditions for a batch system were determined. Pseudo-first- and second-order sorption kinetic models were used to investigate the kinetics of adsorption and the results pointed to the pseudo-second-order model for caesium sorption kinetics. The intraparticle diffusion model was used to the predict rate-limiting step of the ion exchange process in order to ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bde75657fe12d2ad73349aab3cb2cdb0 https://doi.org/10.1080/02757540.2011.629196 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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