Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

A Comparison of the Solubility Products of Layered Me(II)–Al(III) Hydroxides Based on Sorption Studies with Ni(II), Zn(II), Co(II), Fe(II), and Mn(II)

Journal Article · · Soil Systems

The precipitation of mixed metal–aluminum-layered double hydroxides (Me(II)–Al(III)-LDH)) may be an important control of the solubility of Mn(II), Fe(II), Ni(II), Zn(II), and Co(II) in soils, but assessment of this process is hindered by a lack of thermodynamic data. Here, we determined the solubility products (Ksp) of the Me(II)–Al(III)-LDHs formed by these metals based on long-term Me(II)–γAl2O3 sorption studies complemented with X-ray absorption spectroscopy (XAS) measurements. The LDH phases had the chemical formula Me(II)2/3Al1/3(OH)2Cl1/3. Solubility products were derived as Ksp = (Me2+)aq2/3(Al3+)aq1/3(OH−)aq2(Cl−)aq1/3, where brackets represent aqueous activity values determined from the equilibrium solution chemistry of the sorption samples. The Ksps are metal-dependent, with values increasing by two orders of magnitude in the order Ni(II) < Zn(II) < Co(II) < Fe(II) < Mn(II). Comparison to the solubility of β-Me(OH)2 suggests considerable thermodynamic preference of Me(II)–Al(III)-LDH over β-Me(OH)2 in soil environments and reveals a linear relation between the log-transformed Ksp values of Me(II)–Al(III)-LDH and β-Me(OH)2. Solubility plots suggest that Ni(II)–, Zn(II)–, and Co(II)–Al(III)-LDH may form in metal-polluted soils. Fe(II)–Al(III)-LDH may occur in riparian soils undergoing reduction, but precipitation of Mn(II)–Al(III)-LDH appears unlikely as it requires [Mn2+]aq much higher than commonly encountered in reducing soils. Additional thermodynamic and field studies are needed to further assess the importance of Me(II)–Al(III)-LDHs in soils and related geochemical systems.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2500413
Alternate ID(s):
OSTI ID: 1433693
Journal Information:
Soil Systems, Journal Name: Soil Systems Journal Issue: 2 Vol. 2; ISSN 2571-8789; ISSN SSOYAQ
Publisher:
MDPI AGCopyright Statement
Country of Publication:
Netherlands
Language:
English

References (62)

Surface Precipitation of Co(II)(aq) on Al2O3 journal March 1997
Spectroscopic Evidence for the Formation of Mixed-Cation Hydroxide Phases upon Metal Sorption on Clays and Aluminum Oxides journal February 1997
Nickel Sorption Mechanisms in a Pyrophyllite–Montmorillonite Mixture journal May 1999
Formation of Layered Single- and Double-Metal Hydroxide Precipitates at the Mineral/Water Interface: A Multiple-Scattering XAFS Analysis journal March 2000
Kinetics of the Formation and Dissolution of Ni Precipitates in a Gibbsite/Amorphous Silica Mixture journal September 2000
Adsorption and Precipitation of Aqueous Zn(II) on Alumina Powders journal November 2000
An EXAFS investigation of the mechanism of competitive sorption between Co(II) and Ni(II) at γ-alumina/solution interface journal July 2017
Modifications in the solubility and precipitation behavior of various metals as a result of their interaction with sedimentary humic acid journal April 1973
The role of pH in phosphate inhibition of calcite and aragonite precipitation rates in seawater journal March 1990
Evidence for the neoformation of clays upon sorption of Co(II) and Ni(II) on silicates journal June 1994
Hydrotalcite-type anionic clays: Preparation, properties and applications. journal December 1991
Kinetics of the formation and the dissolution of nickel surface precipitates on pyrophyllite journal October 1996
Stability of layered Ni hydroxide surface precipitates—a dissolution kinetics study journal August 2000
The kinetics of mixed Ni-Al hydroxide formation on clay and aluminum oxide minerals: a time-resolved XAFS study journal July 1998
Dynamic interactions of dissolution, surface adsorption, and precipitation in an aging cobalt(II)-clay-water system journal June 1999
The role of Al in the formation of secondary Ni precipitates on pyrophyllite, gibbsite, talc, and amorphous silica: a DRS study journal October 1999
Kinetics and mechanisms of Zn complexation on metal oxides using EXAFS spectroscopy journal July 2003
The Chemistry of Submerged Soils book January 1972
Environmental processes mediated by iron-reducing bacteria journal June 1996
ATR–FTIR and DRIFT spectroscopy of carbonate species at the aged γ-Al2O3/water interface journal April 1999
Fe(II) sorption on pyrophyllite: Effect of structural Fe(III) (impurity) in pyrophyllite on nature of layered double hydroxide (LDH) secondary mineral formation journal November 2016
Formation of a mixed Fe(II)-Zn-Al layered hydroxide: Effects of Zn co-sorption on Fe(II) layered hydroxide formation and kinetics journal August 2017
Ni adsorption and Ni–Al LDH precipitation in a sandy aquifer: An experimental and mechanistic modeling study journal March 2011
Effects of in situ remediation on the speciation and bioavailability of zinc in a smelter contaminated soil journal October 2005
The effects of soil type and chemical treatment on nickel speciation in refinery enriched soils: A multi-technique investigation journal May 2007
Formation of Zn-rich phyllosilicate, Zn-layered double hydroxide and hydrozincite in contaminated calcareous soils journal October 2008
Transformations of γ-alumina in aqueous suspensions journal April 2007
Macroscopic and Spectroscopic Assessment of the Cosorption of Fe(II) with As(III) and As(V) on Al-Oxide journal November 2015
Layered Double Hydroxide Stability. 1. Relative Stabilities of Layered Double Hydroxides and Their Simple Counterparts journal February 1999
Spectroscopic Studies of the Effects of Selenate and Selenite on Cobalt Sorption to γ-Al 2 O 3 journal March 2002
Macroscopic Studies of the Effects of Selenate and Selenite on Cobalt Sorption to γ-Al 2 O 3 journal March 2002
Nickel Sequestration in a Kaolinite-Humic Acid Complex journal February 2003
Changes in Zinc Speciation in Field Soil after Contamination with Zinc Oxide journal September 2005
Formation and Dissolution of Single and Mixed Zn and Ni Precipitates in Soil:  Evidence from Column Experiments and Extended X-ray Absorption Fine Structure Spectroscopy journal July 2005
Kinetics of Ni Sorption in Soils: Roles of Soil Organic Matter and Ni Precipitation journal February 2012
Formation of Layered Fe(II)–Al(III)-Hydroxides during Reaction of Fe(II) with Aluminum Oxide journal April 2012
Formation of Crystalline Zn–Al Layered Double Hydroxide Precipitates on γ-Alumina: The Role of Mineral Dissolution journal October 2012
Formation of Layered Fe(II)-Hydroxides during Fe(II) Sorption onto Clay and Metal-Oxide Substrates journal April 2014
Formation and Stability of Ni−Al Hydroxide Phases in Soils journal January 2010
Biogeochemical Redox Processes and their Impact on Contaminant Dynamics journal January 2010
Kinetics of Mixed Ni−Al Precipitate Formation on a Soil Clay Fraction journal November 1999
The Link between Clay Mineral Weathering and the Stabilization of Ni Surface Precipitates journal September 1999
The Nature of Zn Precipitates Formed in the Presence of Pyrophyllite journal June 2000
Real-time QEXAFS spectroscopy measures rapid precipitate formation at the mineral–water interface journal September 2014
Microorganisms pumping iron: anaerobic microbial iron oxidation and reduction journal October 2006
Relativistic calculations of spin-dependent x-ray-absorption spectra journal July 1997
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
Thermochemistry and Aqueous Solubilities of Hydrotalcite-Like Solids journal April 2002
Organic Matter Mineralization with Reduction of Ferric Iron in Anaerobic Sediments journal January 1986
The rapid formation of crystalline double hydroxy salts and other compounds by controlled hydrolysis journal September 1984
Effects of humic substances on Fe(II) sorption onto aluminum oxide and clay journal January 2018
INFLUENCE OF GIBBSITE SURFACE AREA AND CITRATE ON Ni SORPTION MECHANISMS AT pH 7.5 journal December 2002
HYDROTALCITE-LIKE MINERALS (M2Al(OH)6(CO3)0.5.XH2O, WHERE M = Mg, Zn, Co, Ni) IN THE ENVIRONMENT: SYNTHESIS, CHARACTERIZATION AND THERMODYNAMIC STABILITY journal February 2003
Nickel solubility and precipitation in soils: a thermodynamic study journal April 2006
Calorimetric determination of the enthalpies of formation of hydrotalcite-like solids and their use in the geochemical modeling of metals in natural waters journal August 2006
THE CRYSTAL STRUCTURE OF NIKISCHERITE, Na Fe2+6 Al3(SO4)2 (OH)18 (H2O)12, A MINERAL OF THE SHIGAITE GROUP journal February 2003
Toxic Metals in the Environment: The Role of Surfaces journal September 2005
Reaction Sequence of Nickel(II) with Kaolinite: Mineral Dissolution and Surface Complexation and Precipitation journal January 1998
Reaction Condition Effects on Nickel Sorption Mechanisms in Illite–Water Suspensions journal January 2001
Surface-Induced Nickel Hydroxide Precipitation in the Presence of Citrate and Salicylate journal January 2001
Occurrence of Zn/Al hydrotalcite in smelter-impacted soils from northern France: Evidence from EXAFS spectroscopy and chemical extractions journal April 2003

Similar Records

Formation of a mixed Fe(II)-Zn-Al layered hydroxide: Effects of Zn co-sorption on Fe(II) layered hydroxide formation and kinetics
Journal Article · Tue Aug 01 00:00:00 EDT 2017 · Chemical Geology · OSTI ID:1409550

Sorption of divalent metals on calcite
Journal Article · Sat Jun 01 00:00:00 EDT 1991 · Geochimica et Cosmochimica Acta; (United States) · OSTI ID:5890969

Surface precipitation of Co(II)(aq) on Al{sub 2}O{sub 3}
Journal Article · Fri Feb 28 23:00:00 EST 1997 · Journal of Colloid and Interface Science · OSTI ID:483804

Related Subjects