Accumulation, regional distribution, and environmental effects of Sb in the largest Hg–Sb mine area in Qinling Orogen, China

Qin, Zemin; Shi, Taoran; Zhang, Feng‐Yang; Pei, Ziru; Wang, Yuheng; Liang, Yanru

doi:10.1016/j.scitotenv.2021.150218

Cited by 19 publications

(7 citation statements)

References 64 publications

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“…A good concordance was observed between the results found by the two methods, showing a high correlation coefficient (r 2 > 0.99) for a confidence level of 95%. 1 Drinking rainwater from a city water reservoir (RW, Majorca); 2 Coastal seawater in highly populated (hotel resort) area (Calvià, CSW, Majorca); 3 Drinking tap water from a city water reservoir (DTW, Majorca); 4 Ground water (GW, Majorca); 5 Coastal seawater in highly populated (hotel resort) area (Santa Ponça, CSW Majorca).…”

Section: Validation Studiesmentioning

confidence: 99%

“…Besides, Sb toxicity also depends on its oxidation state; Sb(III) compounds are ten times more toxic than those of Sb(V), e.g., red cells show an affinity for Sb(III), while they are almost impermeable to Sb(V). Therefore, the study of the distribution of Sb species in the environment is crucial to establishing the potential risk to organisms [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Simple and Fast Two-Step Fully Automated Methodology for the Online Speciation of Inorganic Antimony Coupled to ICP-MS

et al. 2022

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A very simple, fast and non-chromatographic methodology for inorganic antimony speciation based on Multisyringe Flow Injection Analysis (MSFIA) employing online hydride generation (HG) ICP-MS was developed. The fully automated analysis is performed in two steps: firstly, Sb(III) is quantified by ICP-MS after chemical vapor generation; then, total antimony is determined in the presence of potassium iodide as a pre-reducer of Sb(V) to Sb(III). The Sb(V) concentration is quantified by the difference between the total antimony and Sb(III) concentrations, reaching an analysis frequency of 30 h−1. The optimization was performed using a Box Behnken design. The MSFIA-HG-ICP-MS system allows the antimony speciation analysis with a detection limit of 0.016 µg L−1 for Sb(III), working in a linear range of 0.053 to 5.0 µg L−1. This method was applied for the determination of Sb(III) and Sb(V) in water samples from Maiorca Island, Spain, and the concentrations found varied from 0.10 to 0.14 µg L−1 for Sb(III) and from 0.12 to 0.28 µg L−1 for Sb(V). The results were validated by addition/recovery tests, obtaining recoveries between 90 and 111% in both cases. Furthermore, a good precision was achieved, 1.4% RSD, and sample and reagent consumption were reduced to a few mL, with the consequent decrease in waste generation. Thus, the proposed method is a good tool for the speciation of inorganic antimony at ultra-trace levels in waters, allowing its risk assessment.

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Section: Validation Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simple and Fast Two-Step Fully Automated Methodology for the Online Speciation of Inorganic Antimony Coupled to ICP-MS

et al. 2022

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“…Under abiotic conditions, Sb 2 S 3 can be oxidized slowly by dissolved oxygen possibly by two typical stages, i.e., the dissolution of Sb 2 S 3 to form aqueous Sb(OH) 3 and H 2 S (Equation (1)), and the oxidations of Sb(OH) 3 and H 2 S by dissolved oxygen to form Sb(OH) 5 /Sb(OH) 6 − and sulfate, respectively (Equations (2) and (3)) [ 6 , 7 ]. It was reported that Sb 2 S 3 oxidation can be significantly promoted under the action of Sb-oxidizing bacteria in nature environments [ 4 , 8 ]. For example, Li et al isolated six Sb-oxidizing bacteria from Xikuangshan, Hunan, China, the largest Sb ores area in the world, and found that the strain with the highest Sb-oxidation activity could aerobically oxidize 50 mmol/L Sb(III) in 3 days [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancement Mechanism of Stibnite Dissolution Mediated by Acidithiobacillus ferrooxidans under Extremely Acidic Condition

Wang

Xia

Liu

et al. 2022

IJMS

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Oxidative dissolution of stibnite (Sb2S3), one of the most prevalent geochemical processes for antimony (Sb) release, can be promoted by Sb-oxidizing microbes, which were studied under alkaline and neutral conditions but rarely under acidic conditions. This work is dedicated to unraveling the enhancement mechanism of stibnite dissolution by typical acidophile Acidithiobacillus ferrooxidans under extremely acidic conditions. The results of solution behavior showed that the dissolution of Sb2S3 was significantly enhanced by A. ferrooxidans, with lower pH and higher redox potential values and higher [Sb(III)] and [Sb(V)] than the sterile control. The surface morphology results showed that the cells adsorbed onto the mineral surface and formed biofilms. Much more filamentous secondary minerals were formed for the case with A. ferrooxidans. Further mineral phase compositions and Sb/S speciation transformation analyses showed that more secondary products Sb2O3/SbO2−, Sb2O5/SbO3−, SO42−, as well as intermediates, such as S0, S2O32− were formed for the biotic case, indicating that the dissolution of Sb2S3 and the Sb/S speciation transformation was promoted by A. ferrooxidans. These results were further clarified by the comparative transcriptome analysis. This work demonstrated that through the interaction with Sb2S3, A. ferrooxidans promotes S/Sb oxidation, so as to enhance S/Sb transformation and thus the dissolution of Sb2S3.

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Section: Introductionmentioning

confidence: 99%

“…It is mainly enriched in quartz vein or carbonate reservoir basically composed of single stibnite mineral. [1,2] Therefore, the mineralogical study of stibnite is helpful to better understand the material composition of the Earth's interior.Currently, the physical property of minerals in the Earth's interior is mainly studied by two methods. One is high temperature and high pressure experiment for in situ test on the physical property of minerals using a variety of static ultrahigh pressure experimental equipment, such as large cavity high pressure device and diamond cavity device, combined with ultrasonic, X-ray diffraction, infrared, and Raman spectroscopy measurement methods.…”

mentioning

confidence: 99%

First‐Principles Study of Structural, Electronic, and Elastic Properties of Sb₂S₃ under Pressure

Liu

Gan²,

Liu

et al. 2021

Physica Status Solidi (b)

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The effects of pressure on the lattice parameters, electronic properties and elastic properties of Sb2S3 under 0–30 GPa are studied by first‐principles calculation. The calculated results of structural parameters of generalized gradient approximation (GGA)‐Perdew–Burke–Ernzerhof (PBE) are less than 3% different from the previous experimental values. With the increase of pressure, the bandgap of Sb2S3 becomes smaller and smaller. At a pressure of 35 GPa, the conduction band coincides with the valence band. Metallization will occur. The Poisson's ratio results show that the Poisson's ratio of Sb2S3 crystal is 0.2892 at 10 GPa. When the pressure increases to 30 GPa, the mechanical stability criterion is no longer satisfied, and the mechanical properties will be unstable. At atmospheric pressure, there is no virtual screen in the phonon dispersion spectrum of Sb2S3. At 30 GPa, the phonon appears virtual screen and the structure is unstable. This is consistent with the results of the previous mechanical stability calculation. Finally, the wave velocity and anisotropy of Sb2S3 are calculated by its elastic coefficients. All the conclusions, herein, can provide a theoretical basis for the future study of Sb2S3 under high pressure. So, it is necessary to study the skills of Sb2S3 under high pressure.

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Accumulation, regional distribution, and environmental effects of Sb in the largest Hg–Sb mine area in Qinling Orogen, China

Cited by 19 publications

References 64 publications

Simple and Fast Two-Step Fully Automated Methodology for the Online Speciation of Inorganic Antimony Coupled to ICP-MS

Simple and Fast Two-Step Fully Automated Methodology for the Online Speciation of Inorganic Antimony Coupled to ICP-MS

Enhancement Mechanism of Stibnite Dissolution Mediated by Acidithiobacillus ferrooxidans under Extremely Acidic Condition

First‐Principles Study of Structural, Electronic, and Elastic Properties of Sb₂S₃ under Pressure

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Accumulation, regional distribution, and environmental effects of Sb in the largest Hg–Sb mine area in Qinling Orogen, China

Cited by 19 publications

References 64 publications

Simple and Fast Two-Step Fully Automated Methodology for the Online Speciation of Inorganic Antimony Coupled to ICP-MS

Simple and Fast Two-Step Fully Automated Methodology for the Online Speciation of Inorganic Antimony Coupled to ICP-MS

Enhancement Mechanism of Stibnite Dissolution Mediated by Acidithiobacillus ferrooxidans under Extremely Acidic Condition

First‐Principles Study of Structural, Electronic, and Elastic Properties of Sb2S3 under Pressure

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First‐Principles Study of Structural, Electronic, and Elastic Properties of Sb₂S₃ under Pressure