skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Hydration structure of the barite (001)–water interface: Comparison of x-ray reflectivity with molecular dynamics simulations

Journal Article · · Journal of Physical Chemistry. C

The three-dimensional structure of the barite (001)-water interface was studied using in situ specular and nonspecular X-ray reflectivity (XR). Displacements of the barium and sulfate ions in the surface of a barite crystal and the interfacial water structure were defined in the analyses. The largest relaxations (0.13 Å lateral and 0.08 Å vertical) were observed for the barium and sulfate ions in the topmost unit cell layer, which diminished rapidly with depth. The best fit structure identified four distinct adsorbed species, which in comparison with molecular dynamics (MD) simulations reveals that they are associated with positions of adsorbed water, each of which coordinates one or two surface ions (either barium, sulfate, or both). These water molecules also adsorb in positions consistent with those of bariums and sulfates in the bulk crystal lattice. These results demonstrate the importance of combining high resolution XR with MD simulations to fully describe the atomic structure of the hydrated mineral surface. The agreement between the results indicates both the uniqueness of the structural model obtained from the XR analysis and the accuracy of the force field used in the simulations.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); The University of Chicago
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; AC05-00OR22725; FG02-94ER14466
OSTI ID:
1364403
Alternate ID(s):
OSTI ID: 1376531; OSTI ID: 1508010
Report Number(s):
DOE-UCHICAGO-14466-2; 135369
Journal Information:
Journal of Physical Chemistry. C, Vol. 121, Issue 22; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 38 works
Citation information provided by
Web of Science

References (41)

Radium uptake during barite recrystallization at 23±2°C as a function of solution composition: An experimental 133Ba and 226Ra tracer study journal June 2010
CO-PRECIPITATION OF RADIUM AND BARIUM SULFATES 1 journal March 1925
Co-precipitation of Radium with Barium and Strontium Sulfate and Its Impact on the Fate of Radium during Treatment of Produced Water from Unconventional Gas Extraction journal March 2014
Thermodynamic properties and crystal growth behavior of the hashemite (BaSO4–BaCrO4) solid solution journal January 2006
Crystallization behavior of solid solutions from aqueous solutions: An environmental perspective journal September 2016
Structure of Barite (001)− and (210)−Water Interfaces journal August 2001
Molecular Dynamics Simulations of Solvation and Kink Site Formation at the {001} Barite−Water Interface journal November 2008
Geochemical reaction mechanism discovery from molecular simulation journal January 2015
Accurate Rates of the Complex Mechanisms for Growth and Dissolution of Minerals Using a Combination of Rare-Event Theories journal July 2011
Structure and Dynamics of Water on Aqueous Barium Ion and the {001} Barite Surface journal November 2007
Assisted Desolvation as a Key Kinetic Step for Crystal Growth journal October 2006
Calculated bulk and surface properties of sulfates journal January 1993
Interactions at the organic/inorganic interface: binding motifs for phosphonates at the surface of barite crystals journal January 1991
Molecular design based on recognition at inorganic surfaces journal October 1991
Structural morphology of crystals with the barite (BaSO4) structure: A revision and extension journal September 1989
Growth Kinetics and Morphology of Barite Crystals Derived from Face-Specific Growth Rates journal March 2015
The effect of cation:anion ratio in solution on the mechanism of barite growth at constant supersaturation: Role of the desolvation process on the growth kinetics journal November 2007
Hydrothermal atomic force microscopy observations of barite step growth rates as a function of the aqueous barium-to-sulfate ratio journal June 2016
Molecular-scale mechanisms of crystal growth in barite journal October 1998
X-ray Reflectivity as a Probe of Mineral-Fluid Interfaces: A User Guide journal January 2002
Hydration layer structure at solid–water interfaces journal December 2014
Is the Calcite–Water Interface Understood? Direct Comparisons of Molecular Dynamics Simulations with Specular X-ray Reflectivity Data journal February 2013
Structure and reactivity of the calcite–water interface journal February 2011
Controlling Crystal Surface Termination by Cleavage Direction journal May 2001
Elements of Modern X-ray Physics book March 2011
Crystal truncation rods and surface roughness journal March 1986
Structure and reactivity of environmental interfaces: Application of grazing angle X-ray spectroscopy and long-period X-ray standing waves journal February 2006
Mineral precipitation and dissolution in aqueous solution: in-situ microscopic observations on barite (001) with atomic force microscopy journal October 1998
Molecular-Scale Density Oscillations in Water Adjacent to a Mica Surface journal September 2001
Model-independent reconstruction of smooth electron density profiles from reflectivity data of liquid surfaces journal June 1997
The MSXX Force Field for the Barium Sulfate−Water Interface journal September 2002
Calibration and Testing of a Water Model for Simulation of the Molecular Dynamics of Proteins and Nucleic Acids in Solution journal June 1997
Fast Parallel Algorithms for Short-Range Molecular Dynamics journal March 1995
Distribution of barium and fulvic acid at the mica–solution interface using in-situ X-ray reflectivity journal December 2007
Three-dimensional structure of the calcite–water interface by surface X-ray scattering journal December 2004
Structure of the Solvated Strontium and Barium Ions in Aqueous, Dimethyl Sulfoxide and Pyridine Solution, and Crystal Structure of Strontium and Barium Hydroxide Octahydrate journal January 1995
Determination of Hydration Numbers of Cations in Aqueous Solution by Means of Proton NMR journal May 1966
Structure and Dynamics of Sulfate Ion in Aqueous SolutionAn ab initio QMCF MD Simulation and Large Angle X-ray Scattering Study journal April 2007
A new determination of the structure of water at 25°C journal August 1986
Sulfate Anion in Water: Model Structural, Thermodynamic, and Dynamic Properties journal June 1994
Structure and dynamics of hydrated ions journal May 1993

Cited By (2)

Atomistics of pre-nucleation layering of liquid metals at the interface with poor nucleants journal January 2019
Modeling of solid–liquid interfaces using scaled charges: rutile (110) surfaces journal January 2018

Similar Records

Pb Sorption at the Barite (001)–Water Interface
Journal Article · Thu Sep 10 00:00:00 EDT 2020 · Journal of Physical Chemistry. C · OSTI ID:1364403

Structures of barite (001) and (210)-water interfaces.
Journal Article · Thu Aug 30 00:00:00 EDT 2001 · J. Phys. Chem. B · OSTI ID:1364403

Simultaneous Adsorption and Incorporation of Sr 2+ at the Barite (001)–Water Interface
Journal Article · Wed Dec 19 00:00:00 EST 2018 · Journal of Physical Chemistry. C · OSTI ID:1364403