Fate of nickel ion in (II-III) hydroxysulphate green rust synthesized by precipitation and coprecipitation

Lucia Helena Garófalo Chaves, Joan E Curry, David Andrew Stone, Jon Chorover

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In order to investigate the efficiency of sulfate green rust (GR2) to remove Ni from solution, GR2 samples were synthesized under controlled laboratory conditions. Some GR2 samples were synthesized from Fe(II) and Fe(III) sulfate salts by precipitation. Other samples were prepared by coprecipitation, of Ni(II), Fe(II) and Fe(III) sulfate salts, i.e., in the presence of Ni. In another sample, Ni(II) sulfate salt was added to pre-formed GR2. After an initial X-ray diffraction (XRD) characterization all samples were exposed to ambient air in order to understand the role of Ni in the transformation of the GR2 samples. XRD was repeated after 45 days. The results showed that Nious GR2 prepared by coprecipitation is isomorphous to Ni-free GR2, i.e. Ni is incorporated into the crystalline structure. Fe(II) was not replaced by Ni(II) in the crystalline structure of GR2 formed prior to exposure to solution-phase Ni. This suggests Ni was adsorbed to the GR2 surface. Sulfate green rust is more efficient in removing Ni from the environment by coprecipitation.

Original languageEnglish (US)
Pages (from-to)813-818
Number of pages6
JournalRevista Brasileira de Ciencia do Solo
Volume31
Issue number4
StatePublished - Jul 2007

Fingerprint

coprecipitation
rust disease
nickel
ions
sulfates
sulfate
ion
salt
crystal structure
salts
X-ray diffraction
sampling
ambient air
air

Keywords

  • Isomorphous substitution
  • Nickel adsorption
  • Nickel incorporation
  • X-ray diffraction

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science

Cite this

Fate of nickel ion in (II-III) hydroxysulphate green rust synthesized by precipitation and coprecipitation. / Chaves, Lucia Helena Garófalo; Curry, Joan E; Stone, David Andrew; Chorover, Jon.

In: Revista Brasileira de Ciencia do Solo, Vol. 31, No. 4, 07.2007, p. 813-818.

Research output: Contribution to journalArticle

@article{72bded56b4f34d0caf424b53fb51d807,
title = "Fate of nickel ion in (II-III) hydroxysulphate green rust synthesized by precipitation and coprecipitation",
abstract = "In order to investigate the efficiency of sulfate green rust (GR2) to remove Ni from solution, GR2 samples were synthesized under controlled laboratory conditions. Some GR2 samples were synthesized from Fe(II) and Fe(III) sulfate salts by precipitation. Other samples were prepared by coprecipitation, of Ni(II), Fe(II) and Fe(III) sulfate salts, i.e., in the presence of Ni. In another sample, Ni(II) sulfate salt was added to pre-formed GR2. After an initial X-ray diffraction (XRD) characterization all samples were exposed to ambient air in order to understand the role of Ni in the transformation of the GR2 samples. XRD was repeated after 45 days. The results showed that Nious GR2 prepared by coprecipitation is isomorphous to Ni-free GR2, i.e. Ni is incorporated into the crystalline structure. Fe(II) was not replaced by Ni(II) in the crystalline structure of GR2 formed prior to exposure to solution-phase Ni. This suggests Ni was adsorbed to the GR2 surface. Sulfate green rust is more efficient in removing Ni from the environment by coprecipitation.",
keywords = "Isomorphous substitution, Nickel adsorption, Nickel incorporation, X-ray diffraction",
author = "Chaves, {Lucia Helena Gar{\'o}falo} and Curry, {Joan E} and Stone, {David Andrew} and Jon Chorover",
year = "2007",
month = "7",
language = "English (US)",
volume = "31",
pages = "813--818",
journal = "Revista Brasileira de Ciencia do Solo",
issn = "0100-0683",
publisher = "Revista Brasileira de Ciencia do Solo",
number = "4",

}

TY - JOUR

T1 - Fate of nickel ion in (II-III) hydroxysulphate green rust synthesized by precipitation and coprecipitation

AU - Chaves, Lucia Helena Garófalo

AU - Curry, Joan E

AU - Stone, David Andrew

AU - Chorover, Jon

PY - 2007/7

Y1 - 2007/7

N2 - In order to investigate the efficiency of sulfate green rust (GR2) to remove Ni from solution, GR2 samples were synthesized under controlled laboratory conditions. Some GR2 samples were synthesized from Fe(II) and Fe(III) sulfate salts by precipitation. Other samples were prepared by coprecipitation, of Ni(II), Fe(II) and Fe(III) sulfate salts, i.e., in the presence of Ni. In another sample, Ni(II) sulfate salt was added to pre-formed GR2. After an initial X-ray diffraction (XRD) characterization all samples were exposed to ambient air in order to understand the role of Ni in the transformation of the GR2 samples. XRD was repeated after 45 days. The results showed that Nious GR2 prepared by coprecipitation is isomorphous to Ni-free GR2, i.e. Ni is incorporated into the crystalline structure. Fe(II) was not replaced by Ni(II) in the crystalline structure of GR2 formed prior to exposure to solution-phase Ni. This suggests Ni was adsorbed to the GR2 surface. Sulfate green rust is more efficient in removing Ni from the environment by coprecipitation.

AB - In order to investigate the efficiency of sulfate green rust (GR2) to remove Ni from solution, GR2 samples were synthesized under controlled laboratory conditions. Some GR2 samples were synthesized from Fe(II) and Fe(III) sulfate salts by precipitation. Other samples were prepared by coprecipitation, of Ni(II), Fe(II) and Fe(III) sulfate salts, i.e., in the presence of Ni. In another sample, Ni(II) sulfate salt was added to pre-formed GR2. After an initial X-ray diffraction (XRD) characterization all samples were exposed to ambient air in order to understand the role of Ni in the transformation of the GR2 samples. XRD was repeated after 45 days. The results showed that Nious GR2 prepared by coprecipitation is isomorphous to Ni-free GR2, i.e. Ni is incorporated into the crystalline structure. Fe(II) was not replaced by Ni(II) in the crystalline structure of GR2 formed prior to exposure to solution-phase Ni. This suggests Ni was adsorbed to the GR2 surface. Sulfate green rust is more efficient in removing Ni from the environment by coprecipitation.

KW - Isomorphous substitution

KW - Nickel adsorption

KW - Nickel incorporation

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=35348934955&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35348934955&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:35348934955

VL - 31

SP - 813

EP - 818

JO - Revista Brasileira de Ciencia do Solo

JF - Revista Brasileira de Ciencia do Solo

SN - 0100-0683

IS - 4

ER -