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

Sulfur Loading and Speciation Control the Hydrophobicity, Electron Transfer, Reactivity, and Selectivity of Sulfidized Nanoscale Zerovalent Iron

Journal Article · · Advanced Materials
 [1];  [1];  [2];  [1];  [3];  [1];  [4];  [5];  [2];  [1]
  1. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  2. Univ. of Texas, Austin, TX (United States)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
  4. Univ. of Pittsburgh, PA (United States)
  5. Swiss Federal Institute of Aquatic Science and Technology, Dübendorf (Switzerland)
Sulfidized nanoscale zerovalent iron (SNZVI) is a promising material for groundwater remediation. However, the relationships between sulfur content and speciation and the properties of SNZVI materials are unknown, preventing rational design. Here, the effects of sulfur on the crystalline structure, hydrophobicity, sulfur speciation, corrosion potential, and electron transfer resistance are determined. Sulfur incorporation extended the nano-Fe0 BCC lattice parameter, reduced the Fe local vacancies, and lowered the resistance to electron transfer. Impacts of the main sulfur species (FeS and FeS2) on hydrophobicity (water contact angles) are consistent with density functional theory calculations for these FeSx phases. These properties well explain the reactivity and selectivity of SNZVI during the reductive dechlorination of trichloroethylene (TCE), a hydrophobic groundwater contaminant. Controlling the amount and speciation of sulfur in the SNZVI made it highly reactive (up to 0.41 L m-2 d-1) and selective for TCE degradation over water (up to 240 moles TCE per mole H2O), with an electron efficiency of up to 70%, and these values are 54-fold, 98-fold, and 160-fold higher than for NZVI, respectively. These findings can guide the rational design of robust SNZVI with properties tailored for specific application scenarios.
Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
NSF; National Institute of Health; USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1633776
Alternate ID(s):
OSTI ID: 1604248
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Journal Issue: 17 Vol. 32; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (63)

Identification and Regulation of Active Sites on Nanodiamonds: Establishing a Highly Efficient Catalytic System for Oxidation of Organic Contaminants journal January 2018
Facile “Spot-Heating” Synthesis of Carbon Dots/Carbon Nitride for Solar Hydrogen Evolution Synchronously with Contaminant Decomposition journal January 2018
Nano-Composites for Water Remediation: A Review journal July 2014
Intercorrelated Superhybrid of AgBr Supported on Graphitic-C 3 N 4 -Decorated Nitrogen-Doped Graphene: High Engineering Photocatalytic Activities for Water Purification and CO 2 Reduction journal September 2015
Enrichment of Precious Metals from Wastewater with Core-Shell Nanoparticles of Iron journal March 2018
Visible- and NIR-Light Responsive Black-Phosphorus-Based Nanostructures in Solar Fuel Production and Environmental Remediation journal October 2018
Carbon‐Based Metal‐Free Catalysts for Energy Storage and Environmental Remediation journal January 2019
Crafting Mussel‐Inspired Metal Nanoparticle‐Decorated Ultrathin Graphitic Carbon Nitride for the Degradation of Chemical Pollutants and Production of Chemical Resources journal January 2019
Degradation of rhodamine B using FeS-coated zero-valent iron nanoparticles in the presence of dissolved oxygen journal July 2016
Application of nanoscale zero valent iron (NZVI) for groundwater remediation in Europe journal August 2011
Density-functional theory studies of pyrite FeS2 () and () surfaces journal November 2002
Treatment of chlorinated organic contaminants with nanoscale bimetallic particles journal May 1998
Optimal design and characterization of sulfide-modified nanoscale zerovalent iron for diclofenac removal journal February 2017
Long-term sequestration of nickel in mackinawite formed by Desulfovibrio capillatus upon Fe(III)-citrate reduction in the presence of thiosulfate journal May 2017
Characterization of the “native” surface thin film on pure polycrystalline iron: A high resolution XPS and TEM study journal February 2007
Adsorption–dechlorination of 2,4-dichlorophenol using two specified MWCNTs-stabilized Pd/Fe nanocomposites journal March 2013
Dechlorination of 2,4-dichlorophenol by nanoscale magnetic Pd/Fe particles: Effects of pH, temperature, common dissolved ions and humic acid journal September 2013
Insight into the kinetics and mechanism of removal of aqueous chlorinated nitroaromatic antibiotic chloramphenicol by nanoscale zero-valent iron journal February 2018
Distributing sulfidized nanoscale zerovalent iron onto phosphorus-functionalized biochar for enhanced removal of antibiotic florfenicol journal March 2019
Mechanism and influence factors of chromium(VI) removal by sulfide-modified nanoscale zerovalent iron journal June 2019
Characterization of zero-valent iron nanoparticles journal June 2006
Characterization of synthetic nanocrystalline mackinawite: Crystal structure, particle size, and specific surface area journal January 2008
Enhanced dechlorination of 2,4-dichlorophenol by Pd/FeFe3O4 nanocomposites journal January 2013
Simultaneous adsorption and reduction of U(VI) on reduced graphene oxide-supported nanoscale zerovalent iron journal September 2014
Understanding controls on redox processes in floodplain sediments of the Upper Colorado River Basin journal December 2017
Studies of the oxidation of iron by water vapour using X-ray photoelectron spectroscopy and QUASES™ journal November 2004
Electroreductive Remediation of Halogenated Environmental Pollutants journal December 2016
Environmental Remediation and Application of Nanoscale Zero-Valent Iron and Its Composites for the Removal of Heavy Metal Ions: A Review journal July 2016
Sulfidation of Nano Zerovalent Iron (nZVI) for Improved Selectivity During In-Situ Chemical Reduction (ISCR) journal August 2016
Reductive Dechlorination of Trichloroethene by Zero-valent Iron Nanoparticles: Reactivity Enhancement through Sulfidation Treatment journal November 2016
Removal of Antibiotic Florfenicol by Sulfide-Modified Nanoscale Zero-Valent Iron journal September 2017
Advances in Sulfidation of Zerovalent Iron for Water Decontamination journal November 2017
Sulfidation of Iron-Based Materials: A Review of Processes and Implications for Water Treatment and Remediation journal November 2017
Enhanced Reactivity and Electron Selectivity of Sulfidated Zerovalent Iron toward Chromate under Aerobic Conditions journal February 2018
Enhanced Oxidative and Adsorptive Removal of Diclofenac in Heterogeneous Fenton-like Reaction with Sulfide Modified Nanoscale Zerovalent Iron journal April 2018
Dechlorination of Excess Trichloroethene by Bimetallic and Sulfidated Nanoscale Zero-Valent Iron journal June 2018
Temporal Evolution of Copper Distribution and Speciation in Roots of Triticum aestivum Exposed to CuO, Cu(OH) 2 , and CuS Nanoparticles journal August 2018
Optimal Design of Sulfidated Nanoscale Zerovalent Iron for Enhanced Trichloroethene Degradation journal September 2018
The Structure of Sulfidized Zero-Valent Iron by One-Pot Synthesis: Impact on Contaminant Selectivity and Long-Term Performance journal March 2019
Reactivity, Selectivity, and Long-Term Performance of Sulfidized Nanoscale Zerovalent Iron with Different Properties journal April 2019
Sulfur Dose and Sulfidation Time Affect Reactivity and Selectivity of Post-Sulfidized Nanoscale Zerovalent Iron journal October 2019
Dechlorination Mechanism of 2,4-Dichlorophenol by Magnetic MWCNTs Supported Pd/Fe Nanohybrids: Rapid Adsorption, Gradual Dechlorination, and Desorption of Phenol journal March 2016
Microwave-Assisted Synthesis of Classically Immiscible Ag–Ir Alloy Nanoparticle Catalysts journal October 2018
Facile Synthesis and Characterization of Fe/FeS Nanoparticles for Environmental Applications journal May 2011
Trichloroethene Hydrodechlorination in Water by Highly Disordered Monometallic Nanoiron journal October 2005
Chemistry of Iron Sulfides journal February 2007
Anaerobic Corrosion of Granular Iron: Measurement and Interpretation of Hydrogen Evolution Rates journal December 1995
TCE Dechlorination Rates, Pathways, and Efficiency of Nanoscale Iron Particles with Different Properties journal March 2005
Effect of Particle Age (Fe 0 Content) and Solution pH On NZVI Reactivity:  H 2 Evolution and TCE Dechlorination journal October 2006
Reactivity of Fe/FeS Nanoparticles: Electrolyte Composition Effects on Corrosion Electrochemistry journal October 2012
Synthesizing Nanoscale Iron Particles for Rapid and Complete Dechlorination of TCE and PCBs journal July 1997
Remediation of Cr(VI) and Pb(II) Aqueous Solutions Using Supported, Nanoscale Zero-valent Iron journal June 2000
Remediation of Trichloroethylene by FeS-Coated Iron Nanoparticles in Simulated and Real Groundwater: Effects of Water Chemistry journal June 2013
Enrichment and Encapsulation of Uranium with Iron Nanoparticle journal February 2015
Adsorption of As(OH) 3 on the (001) Surface of FeS 2 Pyrite:  A Quantum-mechanical DFT Study journal August 2007
Synthesis of nanoscale zero-valent iron immobilized in alginate microcapsules for removal of Pb( ii ) from aqueous solution journal January 2014
In situ remediation of subsurface contamination: opportunities and challenges for nanotechnology and advanced materials journal January 2019
Activation and dissociation of CO 2 on the (001), (011), and (111) surfaces of mackinawite (FeS): A dispersion-corrected DFT study journal September 2015
Effects of ensembles, ligand, and strain on adsorbate binding to alloy surfaces journal November 2018
X-Ray Diffraction of Iron Containing Samples: The Importance of a Suitable Configuration journal February 2018
Vegard’s law journal March 1991
The absolute energy positions of conduction and valence bands of selected semiconducting minerals journal March 2000
Effects of common dissolved anions on the reduction of para-chloronitrobenzene by zero-valent iron in groundwater journal April 2011

Similar Records

Degradation of trichloroethene with a noval ball milled Fe-C nanocomposite
Journal Article · Fri Jul 17 20:00:00 EDT 2015 · Journal of Hazardous Materials · OSTI ID:1265761

Modulating Iron Crystals with Lattice Chalcophile‐Siderophile Elements for Selective Dechlorinations Over Hydrogen Evolution
Journal Article · Thu Mar 06 19:00:00 EST 2025 · Advanced Science · OSTI ID:2575026

Trace Key Mechanistic Features of the Arsenite Sequestration Reaction with Nanoscale Zerovalent Iron
Journal Article · Tue Sep 14 20:00:00 EDT 2021 · Journal of the American Chemical Society · OSTI ID:1901541