Structural study of the incorporation of heavy metals into solid phase formed during the oxidation of EDTA by permanganate at high pH

Gregory V. Korshin; Hyun Shik Chang; Anatoly I. Frenkel; John F. Ferguson

doi:10.1021/es062554t

Structural study of the incorporation of heavy metals into solid phase formed during the oxidation of EDTA by permanganate at high pH

Gregory V. Korshin
, Hyun Shik Chang
, Anatoly I. Frenkel
, John F. Ferguson

Materials Science and Engineering

Stony Brook University

University of Washington

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Properties of solid phases formed during the oxidation of EDTA by permanganate in a high-pH, high-ionic strength solution, and the retention of Cu²⁺, Ni²⁺, and Zn²⁺ by them were examined. Morphologically, the solids were agglomerates of particles with sizes <100 nm. X-ray absorption spectroscopy (XAS) analysis indicated that these particles were birnessite. Its precipitation was accompanied by the removal of Zn ²⁺ and Cu²⁺ released as a result of the breakdown of their complexes with EDTA. However, Ni²⁺ was not removed from the supernatant. Cu²⁺ was strongly bound by birnessite and exhibited little mobility in the pH range from 3 to 14. Zn²⁺ was more mobile, especially at pH > 12. XAS showed that Cu²⁺ binding sites were located within MnO₆ octahedra-comprised sheets that constitute birnessite while Zn²⁺ was positioned between them.

Original language	English
Pages (from-to)	2560-2565
Number of pages	6
Journal	Environmental Science and Technology
Volume	41
Issue number	7
DOIs	https://doi.org/10.1021/es062554t
State	Published - Apr 1 2007

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title = "Structural study of the incorporation of heavy metals into solid phase formed during the oxidation of EDTA by permanganate at high pH",

abstract = "Properties of solid phases formed during the oxidation of EDTA by permanganate in a high-pH, high-ionic strength solution, and the retention of Cu2+, Ni2+, and Zn2+ by them were examined. Morphologically, the solids were agglomerates of particles with sizes <100 nm. X-ray absorption spectroscopy (XAS) analysis indicated that these particles were birnessite. Its precipitation was accompanied by the removal of Zn 2+ and Cu2+ released as a result of the breakdown of their complexes with EDTA. However, Ni2+ was not removed from the supernatant. Cu2+ was strongly bound by birnessite and exhibited little mobility in the pH range from 3 to 14. Zn2+ was more mobile, especially at pH > 12. XAS showed that Cu2+ binding sites were located within MnO6 octahedra-comprised sheets that constitute birnessite while Zn2+ was positioned between them.",

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T1 - Structural study of the incorporation of heavy metals into solid phase formed during the oxidation of EDTA by permanganate at high pH

AU - Korshin, Gregory V.

AU - Chang, Hyun Shik

AU - Frenkel, Anatoly I.

AU - Ferguson, John F.

PY - 2007/4/1

Y1 - 2007/4/1

N2 - Properties of solid phases formed during the oxidation of EDTA by permanganate in a high-pH, high-ionic strength solution, and the retention of Cu2+, Ni2+, and Zn2+ by them were examined. Morphologically, the solids were agglomerates of particles with sizes <100 nm. X-ray absorption spectroscopy (XAS) analysis indicated that these particles were birnessite. Its precipitation was accompanied by the removal of Zn 2+ and Cu2+ released as a result of the breakdown of their complexes with EDTA. However, Ni2+ was not removed from the supernatant. Cu2+ was strongly bound by birnessite and exhibited little mobility in the pH range from 3 to 14. Zn2+ was more mobile, especially at pH > 12. XAS showed that Cu2+ binding sites were located within MnO6 octahedra-comprised sheets that constitute birnessite while Zn2+ was positioned between them.

AB - Properties of solid phases formed during the oxidation of EDTA by permanganate in a high-pH, high-ionic strength solution, and the retention of Cu2+, Ni2+, and Zn2+ by them were examined. Morphologically, the solids were agglomerates of particles with sizes <100 nm. X-ray absorption spectroscopy (XAS) analysis indicated that these particles were birnessite. Its precipitation was accompanied by the removal of Zn 2+ and Cu2+ released as a result of the breakdown of their complexes with EDTA. However, Ni2+ was not removed from the supernatant. Cu2+ was strongly bound by birnessite and exhibited little mobility in the pH range from 3 to 14. Zn2+ was more mobile, especially at pH > 12. XAS showed that Cu2+ binding sites were located within MnO6 octahedra-comprised sheets that constitute birnessite while Zn2+ was positioned between them.

UR - https://www.scopus.com/pages/publications/34247127908

U2 - 10.1021/es062554t

DO - 10.1021/es062554t

M3 - Article

C2 - 17438816

SN - 0013-936X

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EP - 2565

JO - Environmental Science and Technology

JF - Environmental Science and Technology

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ER -

Structural study of the incorporation of heavy metals into solid phase formed during the oxidation of EDTA by permanganate at high pH

Abstract

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