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The molecular structure of the multianion mineral hidalgoite PbAl3(AsO4)(SO4)(OH)6 : implications for arsenic removal from soils

Frost, Ray L., Xi, Yunfei, & Palmer, Sara J. (2011) The molecular structure of the multianion mineral hidalgoite PbAl3(AsO4)(SO4)(OH)6 : implications for arsenic removal from soils. Journal of Molecular Structure, 1005(1-3), pp. 214-219.

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Abstract

The objective of this research is to determine the molecular structure of the mineral hidalgoite PbAl3(AsO4)(SO4)(OH)6 using vibrational spectroscopy. The mineral is found in old mine sites. Observed bands are assigned to the stretching and bending vibrations of (SO4)2- and (AsO4)3- units, stretching and bending vibrations of hydrogen bonded (OH)- ions and Al3+-(O,OH) units. The approximate range of O-H...O hydrogen bond lengths is inferred from the Raman and infrared spectra. Values of 2.6989 Å, 2.7682 Å, 2.8659 Å were obtained. The formation of hidalgoite may offer a mechanism for the removal of arsenic from the environment.

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7 citations in Web of Science®

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ID Code: 46867
Item Type: Journal Article
Keywords: Raman spectroscopy, hidalgoite, arsenate contamination, arsenic in cattle dips, soil remediation
DOI: 10.1016/j.molstruc.2011.08.052
ISSN: 1872-8014
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Divisions: Past > Schools > Chemistry
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2011 Elsevier BV
Copyright Statement: This is the author’s version of a work that was accepted for publication in Journal of Molecular Structure. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Molecular Structure, [VOL 1005, ISSUE 1-3, (2011)] DOI: 10.1016/j.molstruc.2011.08.052
Deposited On: 08 Nov 2011 15:53
Last Modified: 10 May 2014 02:20

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