Title
Application of high resolution X-ray emission spectroscopy on the study of Cr ion adsorption by activated carbon
Date Issued
01 December 2010
Access level
metadata only access
Resource Type
journal article
Author(s)
Módenes A.
Câmera A.
Stutz G.
Tirao G.
Palácio S.
Kroumov A.
Oliveira A.
Alflen V.
Paraná West State University
Publisher(s)
Elsevier
Abstract
In this work granular activated carbon has been chosen as an absorbent in order to investigate the Cr(VI) reduced by adsorption experiments. Several batch chromium-sorption experiments were carried out using 0.25g of granular activated carbon in 50mL aqueous solution containing approximately 70 and 140mgL-1 of Cr(VI) and Cr(III), respectively. Cr-KΒ fluorescence spectra of Cr adsorbed in a carbon matrix and Cr reference materials were measured using a high-resolution Johann-type spectrometer. Based on evidence from the Cr-Kb satellite lines, the Cr(VI) reduction process has actually happened during metal adsorption by the activated carbon. © 2010 Elsevier Ltd.
Start page
2208
End page
2213
Volume
68
Issue
12
Language
English
OCDE Knowledge area
QuÃmica analÃtica
IngenierÃa de materiales
QuÃmica fÃsica
Subjects
Publication version
Version of Record
Scopus EID
2-s2.0-77956411744
Source
Applied Radiation and Isotopes
ISSN of the container
0969-8043
Sponsor(s)
F.R. Espinoza-Quiñones thanks the Brazilian research supporting council ( CNPq ) for financial support under project # 476724/2007-4 . We also thank the Brazilian Light Synchrotron Laboratory (LNLS) for the partial financing of this study (project # XRD1-8113 ).
Sources of information:
Directorio de Producción CientÃfica
Scopus