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Title: XAFS Determination of Pb and Cd Speciation with Siderophores and the Metal/Siderophore/Kaolinite System

Abstract

We provide evidence for hexadentate complexes of Pb2+ and Cd2+ with the trihydroxamate siderophore desferrioxamine B (DFO-B) at pH 7.5, and 9.0, respectively. Analysis of the species of Pb2+ and Cd2+ adsorbed at the surface of kaolinite clay under the same pH conditions and in the presence of DFO-B indicate that Pb2+ is sorbed as a metal-siderophore complex while Cd2+ is not.

Authors:
; ;  [1]; ;  [2]
  1. Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States)
  2. Department of Civil Engineering and Geological Sciences, University of Notre Dame, Notre Dame, IN 46556 (United States)
Publication Date:
OSTI Identifier:
21054591
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 882; Journal Issue: 1; Conference: XAFS13: 13. international conference on X-ray absorption fine structure, Stanford, CA (United States), 9-14 Jul 2006; Other Information: DOI: 10.1063/1.2644472; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTROSCOPY; ADSORPTION; CADMIUM; CADMIUM IONS; CHEMICAL STATE; CLAYS; FINE STRUCTURE; KAOLINITE; LEAD; LEAD COMPLEXES; LEAD IONS; PH VALUE; SURFACES; X-RAY SPECTRA; X-RAY SPECTROSCOPY

Citation Formats

Mishra, Bhoopesh, Vasconcelos, Igor F., Bunker, Bruce A., Haack, Elizabeth A., and Maurice, Patricia A. XAFS Determination of Pb and Cd Speciation with Siderophores and the Metal/Siderophore/Kaolinite System. United States: N. p., 2007. Web. doi:10.1063/1.2644472.
Mishra, Bhoopesh, Vasconcelos, Igor F., Bunker, Bruce A., Haack, Elizabeth A., & Maurice, Patricia A. XAFS Determination of Pb and Cd Speciation with Siderophores and the Metal/Siderophore/Kaolinite System. United States. doi:10.1063/1.2644472.
Mishra, Bhoopesh, Vasconcelos, Igor F., Bunker, Bruce A., Haack, Elizabeth A., and Maurice, Patricia A. Fri . "XAFS Determination of Pb and Cd Speciation with Siderophores and the Metal/Siderophore/Kaolinite System". United States. doi:10.1063/1.2644472.
@article{osti_21054591,
title = {XAFS Determination of Pb and Cd Speciation with Siderophores and the Metal/Siderophore/Kaolinite System},
author = {Mishra, Bhoopesh and Vasconcelos, Igor F. and Bunker, Bruce A. and Haack, Elizabeth A. and Maurice, Patricia A.},
abstractNote = {We provide evidence for hexadentate complexes of Pb2+ and Cd2+ with the trihydroxamate siderophore desferrioxamine B (DFO-B) at pH 7.5, and 9.0, respectively. Analysis of the species of Pb2+ and Cd2+ adsorbed at the surface of kaolinite clay under the same pH conditions and in the presence of DFO-B indicate that Pb2+ is sorbed as a metal-siderophore complex while Cd2+ is not.},
doi = {10.1063/1.2644472},
journal = {AIP Conference Proceedings},
number = 1,
volume = 882,
place = {United States},
year = {Fri Feb 02 00:00:00 EST 2007},
month = {Fri Feb 02 00:00:00 EST 2007}
}