Incorporação de níquel em FE (II-III) grenn rust hidroxisulfato: Efeito sobre a estrutura cristalina e produtos de oxidação

Translated title of the contribution: Nickel incorporation in FE(II, III) hydroxysulfate green Rust: Effect on crystal lattice spacing and oxidation products

Lucia Helena Garófalo Chaves, Joan E Curry, David Andrew Stone, Michael D. Carducci, Jon Chorover

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Ni(II)-Fe(II)-Fe(III) layered double hydroxides (LDH) or Ni-containing sulfate green rust (GR2) samples were prepared from Ni(II), Fe(II) and Fe(III) sulfate salts and analyzed with X ray diffraction. Nickel is readily incorporated in the GR2 structure and forms a solid solution between GR2 and a Ni(II)-Fe(III) LDH. There is a correlation between the unit cell a-value and the fraction of Ni(II) incorporated into the Ni(II)-GR2 structure. Since there is strong evidence that the divalent/trivalent cation ratio in GR2 is fixed at 2, it is possible in principle to determine the extent of divalent cation substitution for Fe(II) in GR2 from the unit cell a-value. Oxidation forms a mixture of minerals but the LDH structure is retained if at least 20 % of the divalent cations in the initial solution are Ni(II). It appears that Ni(II) is incorporated in a stable LDH structure. This may be important for two reasons, first for understanding the formation of LDHs, which are anion exchangers, in the natural environment. Secondly, this is important for understanding the fate of transition metals in the environment, particularly in the presence of reduced Fe compounds.

Original languageUndefined/Unknown
Pages (from-to)1115-1123
Number of pages9
JournalRevista Brasileira de Ciencia do Solo
Volume33
Issue number5
StatePublished - Sep 2009

Fingerprint

hydroxides
rust disease
nickel
hydroxide
crystals
spacing
spatial distribution
oxidation
crystal
cations
cation
sulfates
transition elements
sulfate
transition element
solid solution
X-ray diffraction
anion
substitution
cells

Keywords

  • Isomorphous substitution
  • Layered double hydroxide
  • LDH
  • X ray diffraction

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science

Cite this

Incorporação de níquel em FE (II-III) grenn rust hidroxisulfato : Efeito sobre a estrutura cristalina e produtos de oxidação. / Chaves, Lucia Helena Garófalo; Curry, Joan E; Stone, David Andrew; Carducci, Michael D.; Chorover, Jon.

In: Revista Brasileira de Ciencia do Solo, Vol. 33, No. 5, 09.2009, p. 1115-1123.

Research output: Contribution to journalArticle

@article{42821aa1f13244ab8d186bd40b8931a7,
title = "Incorpora{\cc}{\~a}o de n{\'i}quel em FE (II-III) grenn rust hidroxisulfato: Efeito sobre a estrutura cristalina e produtos de oxida{\cc}{\~a}o",
abstract = "Ni(II)-Fe(II)-Fe(III) layered double hydroxides (LDH) or Ni-containing sulfate green rust (GR2) samples were prepared from Ni(II), Fe(II) and Fe(III) sulfate salts and analyzed with X ray diffraction. Nickel is readily incorporated in the GR2 structure and forms a solid solution between GR2 and a Ni(II)-Fe(III) LDH. There is a correlation between the unit cell a-value and the fraction of Ni(II) incorporated into the Ni(II)-GR2 structure. Since there is strong evidence that the divalent/trivalent cation ratio in GR2 is fixed at 2, it is possible in principle to determine the extent of divalent cation substitution for Fe(II) in GR2 from the unit cell a-value. Oxidation forms a mixture of minerals but the LDH structure is retained if at least 20 {\%} of the divalent cations in the initial solution are Ni(II). It appears that Ni(II) is incorporated in a stable LDH structure. This may be important for two reasons, first for understanding the formation of LDHs, which are anion exchangers, in the natural environment. Secondly, this is important for understanding the fate of transition metals in the environment, particularly in the presence of reduced Fe compounds.",
keywords = "Isomorphous substitution, Layered double hydroxide, LDH, X ray diffraction",
author = "Chaves, {Lucia Helena Gar{\'o}falo} and Curry, {Joan E} and Stone, {David Andrew} and Carducci, {Michael D.} and Jon Chorover",
year = "2009",
month = "9",
language = "Undefined/Unknown",
volume = "33",
pages = "1115--1123",
journal = "Revista Brasileira de Ciencia do Solo",
issn = "0100-0683",
publisher = "Revista Brasileira de Ciencia do Solo",
number = "5",

}

TY - JOUR

T1 - Incorporação de níquel em FE (II-III) grenn rust hidroxisulfato

T2 - Efeito sobre a estrutura cristalina e produtos de oxidação

AU - Chaves, Lucia Helena Garófalo

AU - Curry, Joan E

AU - Stone, David Andrew

AU - Carducci, Michael D.

AU - Chorover, Jon

PY - 2009/9

Y1 - 2009/9

N2 - Ni(II)-Fe(II)-Fe(III) layered double hydroxides (LDH) or Ni-containing sulfate green rust (GR2) samples were prepared from Ni(II), Fe(II) and Fe(III) sulfate salts and analyzed with X ray diffraction. Nickel is readily incorporated in the GR2 structure and forms a solid solution between GR2 and a Ni(II)-Fe(III) LDH. There is a correlation between the unit cell a-value and the fraction of Ni(II) incorporated into the Ni(II)-GR2 structure. Since there is strong evidence that the divalent/trivalent cation ratio in GR2 is fixed at 2, it is possible in principle to determine the extent of divalent cation substitution for Fe(II) in GR2 from the unit cell a-value. Oxidation forms a mixture of minerals but the LDH structure is retained if at least 20 % of the divalent cations in the initial solution are Ni(II). It appears that Ni(II) is incorporated in a stable LDH structure. This may be important for two reasons, first for understanding the formation of LDHs, which are anion exchangers, in the natural environment. Secondly, this is important for understanding the fate of transition metals in the environment, particularly in the presence of reduced Fe compounds.

AB - Ni(II)-Fe(II)-Fe(III) layered double hydroxides (LDH) or Ni-containing sulfate green rust (GR2) samples were prepared from Ni(II), Fe(II) and Fe(III) sulfate salts and analyzed with X ray diffraction. Nickel is readily incorporated in the GR2 structure and forms a solid solution between GR2 and a Ni(II)-Fe(III) LDH. There is a correlation between the unit cell a-value and the fraction of Ni(II) incorporated into the Ni(II)-GR2 structure. Since there is strong evidence that the divalent/trivalent cation ratio in GR2 is fixed at 2, it is possible in principle to determine the extent of divalent cation substitution for Fe(II) in GR2 from the unit cell a-value. Oxidation forms a mixture of minerals but the LDH structure is retained if at least 20 % of the divalent cations in the initial solution are Ni(II). It appears that Ni(II) is incorporated in a stable LDH structure. This may be important for two reasons, first for understanding the formation of LDHs, which are anion exchangers, in the natural environment. Secondly, this is important for understanding the fate of transition metals in the environment, particularly in the presence of reduced Fe compounds.

KW - Isomorphous substitution

KW - Layered double hydroxide

KW - LDH

KW - X ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=75349104628&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=75349104628&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:75349104628

VL - 33

SP - 1115

EP - 1123

JO - Revista Brasileira de Ciencia do Solo

JF - Revista Brasileira de Ciencia do Solo

SN - 0100-0683

IS - 5

ER -