1
Department of Geology, Faculty of Sciences, Ferdowsi University of Mashhad,
2
Department of Geology, Faculty of Sciences, Ferdowsi University of Mashhad, Islamic Republic of Iran
Abstract
Interactions between Cd, pillared clays and chalcogenedies have been studied using nanomineralogical experiments. XRD, DSC and chemical analysis. The synchrotron-based X-ray absorption spectroscopy (XAS) was applied to characterize the reaction phases. The mean bond lengths between, Cd-S, Fe-S, Sb-S, Cd-Cd (in chalcogenedies), Al-Cd, Cd-Ti, and Fe-Cd, (in pillared clays) were determined by XAS method. The ligands information around cadmium atoms was obtained directly from EXAFS and indirect from XANES experiments. Cadmium bearing phases and diffusion of Cd in phases were distinguished by HRXRD, SEM and EPMA. The XAS analysis showed that cadmium sorbed onto pillared clays through a distinct mechanism. These data indicated that the major adsorbent of Cd is a complex of Al, Ti and Fe pillared clays.
Karimi,H and Razmara,M . (2012). Adsorption Mechanisms of Cadmium onto Pillared Clays and Chalcogenides. Journal of Sciences, Islamic Republic of Iran, 23(3), 231-236.
MLA
Karimi,H , and Razmara,M . "Adsorption Mechanisms of Cadmium onto Pillared Clays and Chalcogenides", Journal of Sciences, Islamic Republic of Iran, 23, 3, 2012, 231-236.
HARVARD
Karimi H, Razmara M. (2012). 'Adsorption Mechanisms of Cadmium onto Pillared Clays and Chalcogenides', Journal of Sciences, Islamic Republic of Iran, 23(3), pp. 231-236.
CHICAGO
H Karimi and M Razmara, "Adsorption Mechanisms of Cadmium onto Pillared Clays and Chalcogenides," Journal of Sciences, Islamic Republic of Iran, 23 3 (2012): 231-236,
VANCOUVER
Karimi H, Razmara M. Adsorption Mechanisms of Cadmium onto Pillared Clays and Chalcogenides. J. Sci. I. R. I.. 2012;23(3):231-236.
Journal of Sciences, Islamic Republic of Iran