CHEMICAL ENGINEERING JOURNAL
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2019
·
IF 8.355
Tong-liang Wu,Qian Sun,Guo-dong Fang,Pei-xin Cui,Cun Liu,Marcelo Eduardo Alves,Wen-xiu Qin,Dong-mei Zhou,Zhen-qing Shi,Yu-jun Wang
Natural organic matter (NOM) profoundly influences the metal(loid)s immobilization by iron (Fe) minerals, which, in turn, are the host phase for Sb that control its mobilization and bioavailability. However, the potential effect of the redox-active phenolic acids derived from NOM on this process has rarely been explored. Therefore, the adsorption of Sb(III) on goethite and Sb(III) oxidation in the presence of a common phenolic acid—gallic acid (GA)—was systematically investigated. The reaction mechanisms were unraveled by the combination of wet chemistry, electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), and X-ray absorption fine structure (XAFS) spectroscopy. Our results showed the addition of GA significantly inhibited Sb adsorption on goethite as the pH increased. Except for the competitive adsorption by GA, the inhibition also resulted from the extensive Sb(III) oxidation in the suspension and the lower Sb(V) sorption capacity of goethite at higher pH. The alkaline condition facilitated the generation of reactive oxygen species (hydrogen peroxide) and quinone species (semiquinone radical (SQ − ) and oxidized GA), accounting for the significant Sb(III) oxidation in the solution and on the goethite surface. Besides, the edge-sharing inner-sphere complexes were formed between Sb and goethite regardless of the presence of GA. Our findings demonstrated the remarkable role of the phenolic groups in NOM on the adsorption of Sb(III) on goethite.
研究领域:
环境科学
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土壤化学
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产品关联
DOI
高影响因子
Nanoscale
·
2018
·Vol. 11
·期 4
·1762-1769
·
IF 7.233
Guangju Zhang,Xian Tang,Xing Fu,Weicheng Chen,Babar Shabbir,Han Zhang,Qiang Liu,Mali Gong
A new derivative of antimonene named fluorinated antimonene was synthesized using the method of ionic liquid-assisted electrochemical exfoliation and synchronous fluorination. Passive Q-switched pulses were produced from a Nd:LuAG laser with fluorinated antimonene, having a pulse width of 326.7 ns and a repetition rate of 733.1 kHz demonstrating its potential application as a saturable absorber. Density functional theory calculations revealed that compared with pure antimonene with an indirect bandgap, fluorinated antimonene exhibits a direct bandgap modulated by the fluorination degree showing that fluorinated antimonene would be applied as optical devices beyond its application as a saturable absorber.
研究领域:
材料科学
·
光学
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理论计算
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DOI
PubMed
高影响因子
Small
·
2021
·Vol. 17
·期 6
·2006824
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IF 13.281
Bochao Chen,Lizhuang Yang,Xiangren Bai,Qingzhao Wu,Ming Liang,Yuxuan Wang,Naiqin Zhao,Chunsheng Shi,Baozeng Zhou,Chunnian He
In this work, the core-shelled Sb@Sb 2 O 3 heterostructure encapsulated in 3D N-doped carbon hollow-spheres is fabricated by spray-drying combined with heat treatment. The novel core-shelled heterostructures of Sb@Sb 2 O 3 possess a mass of heterointerfaces, which formed spontaneously at the core-shell contact via annealing oxidation and can promote the rapid Na + /K + transfer. The density functional theory calculations revealed the mechanism and significance of Na/K-storage for the core-shelled Sb@Sb 2 O 3 heterostructure, which validated that the coupling between the high-conductivity of Sb and the stability of Sb 2 O 3 can relieve the shortcomings of the individual building blocks, thereby enhancing the Na/K-storage capacity. Furthermore, the core-shell structure embedded in the 3D carbon framework with robust structure can further increase the electrode mechanical strength and thus buffer the severe volume changes upon cycling. As a result, such composite architecture exhibited a high specific capacity of ≈573 mA h g −1 for sodium-ion battery (SIB) anode and ≈474 mA h g −1 for potassium-ion battery (PIB) anode at 100 mA g −1 , and superior rate performance (302 mA h g −1 at 30 A g −1 for SIB anode, while 239 mA h g −1 at 5 A g −1 for PIB anode).
研究领域:
材料科学
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能源存储
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DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
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IF 11.3
Xinyu Guo,Zhibao Liu,Hui Chen,Yuqi Zhu,Yaopeng Zhang,Fang Li,Chunyan Ma,Chensi Shen
The coexistence of antimony (Sb) contamination from textile industries and phosphorus (P) enrichment poses a significant yet understudied threat to aquatic ecosystems. This study elucidates how P availability determines Sb toxicity in cyanobacteria. Under P-deficient conditions (0 and 3.0 mg/L), Sb (50 μg/L) consistently inhibited Synechococcus sp. growth (by 29.5 % and 14.1 %, respectively) over 144 h. While, at optimal and high P levels (5.4 and 9.0 mg/L), Synechococcus sp. cells exhibited initial inhibition followed by growth promotion (by 18.8 % and 38.7 %, respectively). Mechanistically, P-deficient cells accumulated 3.7-fold more Sb, developed severe SOD/CAT imbalance (5.2-fold increase and 44.9 % decrease), and showed substantially higher ROS levels despite rapid initial Sb(III) oxidation. These divergent physiological responses were underpinned by distinct molecular adaptations. Transcriptomic analysis revealed that P-sufficient cells strategically upregulated sulfate transporters while downregulating phosphate transporters (pstS/pstC/pstA) to minimize Sb uptake, exhibited balanced redox regulation, and maintained efficient electron transport chains. In contrast, P-deficient cells upregulated emergency stress responses (flavodoxin FldA) but failed to maintain effective metal transport regulation. This study establishes nutrient status as a key determinant of Sb toxicity, demonstrating that eutrophication transforms Sb from an inhibitor to a promoter, with implications for cyanobacterial bloom management.
研究领域:
环境科学
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分子生物学
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DOI
PubMed
高影响因子
Journal of Environmental Sciences
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2021
·
IF 5.565
Li Xiang,Chaoyang Liu,Deng Liu,Liyuan Ma,Xuan Qiu,Hongmei Wang,Xiaolu Lu
Soils and waters are heavily contaminated by antimony in Xikuangshan (XKS) mine area. It is widely accepted that oxidative dissolution of sulfide minerals and aqueous dissolution are the most prevalent geochemical mechanisms for the release of Sb to the environment. Bosea sp. AS-1 is an antimonite-oxidizer isolated from the mine slag in Xikuangshan Sb mine. Whole genome sequencing revealed the presence of multiple sulfur-oxidizing genes, antimony (Sb) metabolism genes and carbon fixation genes in AS-1′s genome. We therefore hypothesized that under oxic conditions, AS-1 could mediate the oxidation of sulfide and Sb(III) in stibnite (Sb 2 S 3 ) and lead to the release of Sb. Indeed, strain AS-1 was discovered as an autotrophic Sb(III)-oxidizer. Antimony mobilization studies conducted with strain AS-1 showed significantly enhanced mobilization of Sb, and complete oxidation of released Sb and sulfur to Sb(V) and sulfate. In addition, AS-1 induced a faster release of Sb under heterotrophic condition, and new acicular minerals might form. These findings support the hypothesis that microorganisms play an important role in the mobilization and transformation of Sb in XKS mine area and may contribute to our further understanding of the Sb biogeochemical redox cycle in natural environment.
研究领域:
环境科学
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微生物学
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产品关联
DOI
PubMed
高影响因子
Toxics
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2023
·Vol. 11
·期 10
·860
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IF 4.6
Yi Lu,Fangyuan Peng,Yingyang Wang,Haipu Li,Zhaoguang Yang
Antimony (Sb) is a non-essential metalloid that can be taken up by plants from contaminated soils and thus enter the food chain and threaten human health.Boehmeria niveaL. (ramie) is a promising phytoremediation plant for Sb-polluted soils. However, the mechanisms of antimonite (SbIII) and antimonate (SbV) uptake by ramie remain unclear. In this study, a hydroponic system was established to investigate how different substances affect the uptake of SbIII or SbV by ramie, including an energy inhibitor (malonic acid), an aquaglyceroporin inhibitor (silver nitrate), an SbV analog (phosphate—PV), and SbIII analogs (arsenite—AsIII, glycerol, silicic acid—Si, and glucose). The results indicated that ramie primarily transported Sb by increasing the Sb concentration in the bleeding sap, rather than increasing the weight of the bleeding sap. After 16 h of Sb exposure, the absolute amount of transported Sb from the roots to the aboveground parts was 1.90 times higher under SbIII than under SbV. The addition of malonic acid significantly inhibited the uptake of SbV but had limited effects on SbIII, indicating that SbV uptake was energy dependent. PV addition significantly reduced SbV uptake, while the addition of AsIII, glycerol, and Si obviously inhibited SbIII uptake. This suggested that the uptake of SbV might be via low-affinity P transporters and SbIII might use aquaglyceroporins. These findings deepen the understanding of Sb uptake pathways in ramie, contribute to a better comprehension of Sb toxicity mechanisms in ramie, and establish a foundation for identifying the most effective Sb uptake pathways, which could further improve the efficiency of phytoremediation of Sb-polluted soils.Keywords:ramie;antimony;uptake pathway;aquaglyceroporin
研究领域:
植物学
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环境科学
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DOI
PubMed
高影响因子
Nano Research
·
2018
·Vol. 11
·期 11
·5968-5977
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IF 7.994
Lin Wanzhen,Lian Yaping,Zeng Guang,Chen Yanyan,Wen Zhenhai,Yang Huanghao
Recent theoretical studies revealed that two-dimensional (2D) antimonene has attractive characteristics, such as superior photothermal conductivity, absorption over a wide range, high mobility, and good spintronic properties. Herein, we report a reliable liquid phase exfoliation (LPE) route for the preparation of high-quality high-stability atomically thin (AT) antimonene via high ultrasonic power. The AT antimonene delivers a high specific capacity of up to 860 mA·h·g –1 , with high rate capability and good cycling stability as an anode of a sodium ion battery (SIB). The good conductivity and 2D structure endow AT antimonene with more active sites for sodium storage, a facilitated pathway for electron transfer and mass transport, and the capability to reduce the volume expansion during the discharge–charge process.
研究领域:
材料科学
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能源存储
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产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2018
·
IF 3.779
Dongyang Wang,Xiao Zhang,Yong Yu,Lin Xie,Jinfeng Wang,Guangtao Wang,Jiaqing He,Yuling Zhou,Qiantao Pang,Jianwei Shao,Li-Dong Zhao
In this work, we report that the high performance of SnTe could be realized by enhancing electrical transport properties (power factor) and reducing thermal conductivity through stepwisely introducing elements of Sb, In and Se. We found that Sb and In co-doping can enhance Seebeck coefficients in the broad temperature range via optimizing carrier density and introducing resonant state, respectively. Moreover, nanostructures could be formed when the Sb content beyond the solubility limit in SnTe matrix, which coupled with point defects from In and Se alloying result in a very low (lattice) thermal conductivity through the enhanced phonon scattering from defects and grain boundaries. A peak ZT ∼1.0 at 923 K can be achieved with the enhanced power factor and reduced thermal conductivity. Accordingly, the average ZT value increases from ∼0.20 for undoped SnTe to ∼ 0.60 for multiple-doped SnTe (Sn 0.823 Sb 0.17 In 0.007 Te 0.98 Se 0.02 ) over 300–923 K, generating a high calculated conversion efficiency ∼ 11%. Present results indicate the high performance of SnTe can be obtained through stepwisely optimizing strategy in both electrical and thermal transport properties.
研究领域:
材料科学
·
热电转换
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DOI
高影响因子
Journal of Cleaner Production
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2022
·
IF 11.072
Zhenzhen Jiang,Chi Ma,Yanqing He,Mingli Li,Gaoling Liu,Yafei Guo,Duo Ji,Tianlong Deng
To develop a green and efficient cesium adsorbent with high adsorption capacity , rapid kinetics, and good regeneration performance is a tremendous challenge. In this work, potassium iron antimony thiostannate (PIATS) synthesized by the hydrothermal method was utilized for green recovery cesium from geothermal water for the first time. PIATS showed a high adsorption capacity of 401.23 mg/g, which was much higher than other types of adsorbents at present. Meanwhile, PIATS showed rapid ion exchange kinetics (within 3 min) and broad pH resistance (4–12). More importantly, PIATS still showed excellent selectivity to cesium even in geothermal water containing many other coexisted ions ( K d = 1.96 × 10 4 mL/g), and the separation factors between Cs + and the coexisted competing ions were ranged from 462.77 to 963.76. Subsequently, the cesium-laden PIATS could be easily eluted with 0.50 mol/L NaNO 3 to achieve rapid desorption (within 10 min). The concentration of Cs + in the elution was enriched more than 11 times higher than that in the original solution. Furthermore, no organic solvents or other toxic reagents were involved during the whole process. Therefore, the adsorption advantages, excellent enrichment ability, and structural stability of PIATS make it a potential recyclable candidate for green cesium recovery from geothermal water.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2019
·
IF 4.527
Jihai Gu,Geoffrey Sunahara,Robert Duran,Jun Yao,Yongqiang Cui,CengCeng Tang,Hongquan Li,Victor G. Mihucz
Understanding the mechanism(s) of microbial resistance to antimony (Sb) is critical in the bioremediation of Sb polluted environments. Here a novel bacterium ( Acinetobacter sp. JH7) isolated from mine tailings decreased the Microtox toxicity of a Sb(III)-containing medium. DNA sequencing and physiological testing were employed for the identification and characterization of strain JH7. Following a batch experiment, Fourier transform infrared spectroscopy (FTIR) and antimony speciation analyses determined the adsorption and oxidation of antimony. Analyses of Sb(III) distribution revealed that extracellular polymeric substances and cell walls inhibited Sb(III) entry into JH7 cells. FTIR studies indicated that key functional groups including –OH, C–N, and C–O likely participated in Sb(III) biosorption. Isothermal and kinetic studies revealed that Sb(III) sorption to viable JH7 cells fitted the Langmuir model ( R 2 = 0.99) and could be described by pseudo-second order kinetics ( R 2 = 0.99). Furthermore, the increase of anti-oxidative enzymatic activity of JH7 enhanced the intracellular detoxification of Sb(III), which would indirectly contribute to the Sb(III) resistance ability of strain JH7. Our results indicate that biosorption and ROS oxidation of Sb(III) were likely responsible for the decreased toxicity of Sb. The greater understanding how Acinetobacter sp. JH7 lowers the environmental Sb(III) toxicity could provide a basis for future research and subsequent development of technologies for the remediation of Sb contaminated sites.
研究领域:
环境微生物学
·
生物修复
·
毒理学
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产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2021
·
IF 9.297
Yun Li,Haotian Xue,Pekka Taskinen,Ari Jokilaakso,Chaobo Tang,Wei Jin,Minna Rämä,Yongming Chen,Shenghai Yang
In view of the issues of low efficiency and environmental pollution existing in current antimony production, this work proposes an innovative and cleaner process to extract antimony from stibnite concentrate and co-treat goethite residues. The mechanisms of antimony extraction and zinc, iron, sulfur conservation was thermodynamically and experimentally investigated. The results show that iron- and zinc-bearing components in the goethite residue firstly reacted and releasing Fe x O y and ZnO, then stibnite (Sb 2 S 3 ) quickly converted to senarmontite (Sb 2 O 3 ) in the presence of Fe x O y and ZnO. Intermediate Sb 2 O 3 was subsequently reduced to metallic Sb. Bench-scale experiments of antimony extraction from stibnite concentrate with goethite residue as sulfur-fixing agent validated that 85.7% of Sb was directly recovered as crude antimony bullion, only around 7.4% antimony volatilized to fume. Pb, As, Au, and Ag tended to also be co-enriched in the bullion. 97.4% of sulfur, 88.8% of zinc and 86.1% of iron were recovered and fixed simultaneously. Sulfur in Sb 2 S 3 , iron and zinc contained in goethite residues was conserved in matte as marketable Fe 2 Zn 3 S 5 , FeS, and ZnS, instead of forming gaseous SO 2 . This novel process is a promising recycling and co-treatment alternative for various secondary iron- and zinc-containing materials.
研究领域:
冶金学
·
环境科学
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产品关联
DOI
高影响因子
GEODERMA
·
2023
·
IF 6.1
Tongliang Wu,Cun Liu,Peixin Cui,Hongjing Zhang,Sainan Hu,Peng Zhang,Qin Xue,Yaodong Wang,Chenglong Feng,Marcelo Eduardo Alves,Matthew K. Tighe,Yujun Wang
A quantitative evaluation of the dynamics of antimony (Sb) species transformation when Sb(III) enters the soil matrix would facilitate the understanding of the speciation and environmental fate of Sb in natural environments. Towards this end, the coupled sorption and abiotic oxidation kinetics of Sb(III) were examined across 12 soils with a 24 h timeframe. The soil-solution distribution coefficients (K d ) of Sb ranged between 214 and 5965 L kg −1 . Both apparent and mechanistic kinetic models were used to described the process. The apparent kinetic model indicated a two-rate oxidation and associated stabilization behavior of Sb in soils. The fast oxidation rate constants ranged from 0.147 to 0.763 h −1 , which were one to two orders of magnitudes higher than the slow rate constants (0.002–0.039 h −1 ). Iron and Mn oxides were identified as the key soil components associated with adsorptive-oxidative sites (SOH) and oxidative sites (Mn-OH) of soils for Sb species, and these were subsequently integrated into the mechanistic kinetic model. This model included the adsorption–desorption of Sb(III) as well as the oxidation product, Sb(V) on the SOH, the oxidation of Sb(III) by SOH and Mn-OH, and the stabilization of both Sb(III) and Sb(V). The model produced a global fit for dissolved and adsorbed Sb species across the 12 soils. This study provides new information for predicting the dynamics of Sb in soils when multiple adsorption–desorption, oxidation and stabilization reactions are coupled in natural environments.
研究领域:
环境科学
·
土壤学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）