A theoretical study of adsorption on iron sulfides towards nanoparticle modeling

2020 ◽  
Vol 22 (40) ◽  
pp. 23258-23267
Author(s):  
Miroslav Kolos ◽  
Daniel Tunega ◽  
František Karlický
Keyword(s):  
Iron Sulfide ◽  
Theoretical Study ◽  
Sulfide Minerals ◽  
Adsorption Properties ◽  
Zero Valent Iron ◽  
Polar Molecules ◽  
Iron Sulfides ◽  
Iron Sulfide Minerals

The adsorption properties of two iron sulfide minerals (mackinawite and pyrite) and zero-valent iron with respect to two small polar molecules (H2O and H2S) and trichloroethylene (TCE) were modeled.

scholarly journals Iron Sulfide Minerals as Potential Active Capping Materials for Mercury-Contaminated Sediment Remediation: A Minireview

2019 ◽  
Vol 11 (6) ◽  
pp. 1747 ◽  
Author(s):  
Yu Ting ◽  
Hsing-Cheng Hsi
Keyword(s):  
Iron Sulfide ◽  
Sulfide Minerals ◽  
Ex Situ ◽  
Contaminated Sediment ◽  
Iron Sulfides ◽  
Sediment Remediation ◽  
Metal Pollutants ◽  
Iron Sulfide Minerals ◽  
In Situ Methods ◽  
Heavy Metal Pollutants

Several innovative approaches have been proposed in recent years to remediate contaminated sediment to reduce human health and environmental risk. One of the challenges of sediment remediation stems from its unfeasible high cost, especially when ex situ strategies are selected. Therefore, in situ methods such as active capping have been emerging as possible options for solving sediment problems. Active capping methods have been extensively tested in field-scale sediment remediation for organic pollutants (e.g., PCBs, PAHs, DDT) contamination with good sequestration efficiency; however, these methods have not been widely tested for control of heavy metal pollutants, such as mercury (Hg). In this review, the potentials of using iron sulfide minerals to sequestrate Hg were discussed. Iron sulfide minerals are common in the natural environment and have shown good effectiveness in sequestrating Hg by adsorption or precipitation. Iron sulfides can also be synthesized in a laboratory and modified to enhance their sequestration ability for Hg. Some of the potential advantages of iron sulfides are pointed out here. Additional tests to understand the possibility of applying iron sulfides as active caps to remediate complicated environment systems should be conducted.

Mercury removal from water by iron sulfide minerals. An electron spectroscopy for chemical analysis (ESCA) study

1979 ◽  
Vol 13 (9) ◽  
pp. 1142-1144 ◽  
Author(s):  
James R. Brown ◽  
G. Michael Bancroft ◽  
William S. Fyfe ◽  
Ronald A. N. McLean
Keyword(s):  
Chemical Analysis ◽  
Electron Spectroscopy ◽  
Iron Sulfide ◽  
Sulfide Minerals ◽  
Mercury Removal ◽  
Iron Sulfide Minerals

The X-Ray Analysis of Uranium Ores for Iron Sulfide Minerals

1981 ◽  
Vol 25 ◽  
pp. 113-115
Author(s):  
A. J. Durbetaki ◽  
R. H. Carlson ◽  
T. F. Quail
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Sulfide ◽  
Sulfide Minerals ◽  
Ore Deposits ◽  
X Ray Diffraction ◽  
X Ray ◽  
Iron Sulfide Minerals ◽  
Xrd Method

Hydrogen peroxide is used to extract uranium by the in situ leaching of sandstone ore deposits containing uraninite (UO2). Since FeS2 minerals, marcasite and pyrite, also occur in these deposits and they consume hydrogen peroxide in their oxidation, it is important to determine their concentration.A quantitative X-ray diffraction (XRD) method was therefore developed in order to monitor the concentration of marcasite and pyrite in sandstone ores.

Evidence for the involvement of betaproteobacterial Thiobacilli in the nitrate-dependent oxidation of iron sulfide minerals

2006 ◽  
Vol 58 (3) ◽  
pp. 439-448 ◽  
Author(s):  
Suzanne C.M. Haaijer ◽  
Marlies E.W. Van der Welle ◽  
Markus C. Schmid ◽  
Leon P.M. Lamers ◽  
Mike S.M. Jetten ◽  
...  
Keyword(s):  
Iron Sulfide ◽  
Sulfide Minerals ◽  
Iron Sulfide Minerals

Evaluation Protocol for Concrete Aggregates Containing Iron Sulfide Minerals

2016 ◽  
Vol 113 (3) ◽  
Author(s):  
Andreia Rodrigues ◽  
Josée Duchesne ◽  
Benoit Fournier ◽  
Benoît Durand ◽  
Medhat H. Shehata ◽  
...  
Keyword(s):  
Iron Sulfide ◽  
Sulfide Minerals ◽  
Concrete Aggregates ◽  
Evaluation Protocol ◽  
Iron Sulfide Minerals

Preventing oxidation of iron sulfide minerals by polyethylene polyamines

2006 ◽  
Vol 19 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Yu-Wei Chen ◽  
Yuerong Li ◽  
Mei-Fang Cai ◽  
Nelson Belzile ◽  
Zhi Dang
Keyword(s):  
Iron Sulfide ◽  
Sulfide Minerals ◽  
Iron Sulfide Minerals
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