Mechanistic understanding of antimony(V) complexation on montmorillonite surfaces: Insights from first-principles molecular dynamics

Zhang, Chi; Liu, Libin; Chen, Xueyao; Dai, Yunchao; Jia, Hanzhong

doi:10.1016/j.cej.2021.131157

Cited by 4 publications

(2 citation statements)

References 81 publications

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“…Some scholars attempted to introduce first principles in physics to solve the problem of soil heavy-metal pollution 35 , 36 . Balan et al analyzed the release kinetics of lead from soil, and Zhang et al analyzed the adsorption of kaolinite on Mg, Sb, Cu, As, Al, and other heavy-metal elements 37 , 38 . However, no specific description of the specific role of compounds in kaolinite and perovskite could be found.…”

Section: Discussionmentioning

confidence: 99%

Study on the physical and chemical properties of lead passivating agent in soil

Han,

Li,

Shen

2023

Sci Rep

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With the rapid development of industry, heavy metal pollution has seriously damaged the health of soil, and heavy metals spread through the food chain, posing a threat to human health. The firm existence of heavy metals in soil under earthy conditions is a center trouble faced by soil dense metal pollution solidification and correction technology. However, the existing investigation results are mostly controlled to soil passivation experiments using various materials. Macroscopically, heavy metal passivation materials have been selected, but the intrinsic mechanisms of different compound functional groups in soil passivation have been ignored. With the common heavy metal ion Pb2+ as an example, the stability of the combination of heavy metal ions and common ion groups in soil was analyzed in this study by using quantum chemical calculation as the theoretical guidance. The results show that SO42− and PO43−, as functional groups of passivating agents, are used to control lead pollution and have been verified to have good effects. When the pollution is particularly serious and not easy to passivation and precipitation, Fe3+ can be considered to enhance the passivation effect.

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Section: Discussionmentioning

confidence: 99%

Study on the physical and chemical properties of lead passivating agent in soil

Han,

Li,

Shen

2023

Sci Rep

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“…tion mechanisms of Sb in soil. The clay minerals play a critical role in retaining Sb by complexation processes, which can limit the transport and the bioavailability of Sb greatly (Zhang et al, 2022) [73]. Anion adsorption in clay minerals is related to broken edges of clay particles, which typically occur by surface ligand exchange (Wilson et al, 2010) [26].…”

Section: Influencing Factors Of Soil Sb Accumulationmentioning

confidence: 99%

Evaluation of Pollution Level, Spatial Distribution, and Ecological Effects of Antimony in Soils of Mining Areas: A Review

Shi

Terada

Riya

2022

IJERPH

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The first global-scale assessment of Sb contamination in soil that was related to mining/smelting activities was conducted based on 91 articles that were published between 1989 and 2021. The geographical variation, the pollution level, the speciation, the influencing factors, and the environmental effects of Sb that were associated with mining/smelting-affected soils were analyzed. The high Sb values mainly occurred in developed (Poland, Italy, Spain, Portugal, New Zealand, Australia) and developing (China, Algeria, Slovakia) countries. Sb concentrations of polluted soil from mining areas that were reported in most countries significantly exceeded the maximum permissible limit that is recommended by WHO, except in Turkey and Macedonia. The soil Sb concentrations decreased in the order of Oceania (29,151 mg/kg) > North Africa (13,022 mg/kg) > Asia (1527 mg/kg) > Europe (858 mg/kg) > South America (37.4 mg/kg). The existing extraction methods for Sb speciation have been classified according to the extractant, however, further research is needed in the standardization of these extraction methods. Modern analytical and characterization technologies, e.g., X-ray absorption spectroscopy, are effective at characterizing chemical speciation. Conditional inference tree (CIT) analysis has shown that the clay content was the major factor that influenced the soil Sb concentration. Non-carcinogenic risks to the public from soil Sb pollution were within the acceptable levels in most regions. An Sb smelter site at the Endeavour Inlet in New Zealand, an abandoned open-pit Sb mine in Djebel Hamimat, Algeria, an old Sb-mining area in Tuscany, Italy, and Hillgrove mine in Australia were selected as the priority control areas. Cynodon dactylon, Boehmeria, Pteris vittata, and Amaranthus paniculatus were found to be potential Sb accumulators. All of the values of bioaccumulation factors for the crops were less than one. However, ingestion of Sb through crop consumption posed potential non-carcinogenic health risks, which should not be neglected. The soil variables (pH, Eh, total sulfur, carbon nitrogen ratio, total organic carbon, and sulfate), the total Sb and the bioavailable Sb, and heavy metal(loid)s (As, Pb, and Fe) were the major parameters affecting the microbial community compositions.

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Removal performance and mechanisms of Pb(II) and Sb(V) from water by iron-doped phosphogypsum: single and coexisting systems

et al. 2022

Environ Sci Pollut Res

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Mechanistic understanding of antimony(V) complexation on montmorillonite surfaces: Insights from first-principles molecular dynamics

Cited by 4 publications

References 81 publications

Study on the physical and chemical properties of lead passivating agent in soil

Study on the physical and chemical properties of lead passivating agent in soil

Evaluation of Pollution Level, Spatial Distribution, and Ecological Effects of Antimony in Soils of Mining Areas: A Review

Removal performance and mechanisms of Pb(II) and Sb(V) from water by iron-doped phosphogypsum: single and coexisting systems

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