CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Chunkai Huang,Zhiquan Xiang,Jincan Huang,Guangbing Liu,Xuemin Yu,Weijing Liu,Haijin Cao
Significant amounts of Sb(III) and Sb(V) are present in printing and dyeing wastewater (PDW), which leads to the detrimental effects on the environment if not treated properly. In this paper, the adsorptive removal of Sb(III) and Sb(V) by TiCl 4 derived flocs and the oxidation process were investigated. The results showed that TiCl 4 conducted superior coagulation performance on Sb(III) removal than Sb(V) in terms of dosage, pH range and immunity to interference. When the dosage was 50 mg/L and the final pH was 5.0, the concentration of Sb(III) and Sb(V) was reduced from 2000 μg/L to 100 μg/L and 180 μg/L, respectively. According to the Langmuir model, The adsorption for Sb(III) (74.27 mg/g) by TiCl 4 derived flocs was higher than Sb(V) (68.45 mg/g). The Sb(III) in the solution could partially inhibit the adsorption of Sb(V). It was also observed that the Sb(III) was oxidized to Sb(V), which was owing to the molecular oxygen during the coagulation and the flocs might act as catalyst. The actual printing and dyeing wastewater treatment experiments results showed that pre-reduction of Sb(V) to Sb(Ⅲ) could considerably improve the total Sb removal from 83 % to 98.8 %. The characterization results, such as zeta potential and x-ray photoelectron spectroscopy (XPS), indicated that the Sb(Ⅲ) removal was mainly achieved by chemisorption. The Sb(V) removal was mainly dependent on chemisorption and electrostatic adsorption, while the latter contributed more than former. The results of DFT calculations explained the reason for higher removal efficiencies of Sb(III) than Sb(V) in the TiCl 4 coagulation system. This study provides a new idea for the efficient removal of Sb(III) and Sb(V) using TiCl 4 in PDW to save the cost in engineering practice.
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2024
·
IF 7.4
Zhiquan Xiang,Chunkai Huang,Jincan Huang,Yan Yan,Guangbing Liu,Xuemin Yu,Weijing Liu,Haijin Cao,Aozhan Liu
Herein, the synergistic removal of Sb(Ⅲ) and Sb(Ⅴ) from wastewater by polymeric ferric sulfate (PFS) and the oxidation process were investigated. The results showed that PFS exhibited superior performance on Sb(Ⅲ) removal in terms of coagulant dosage, applied pH, and anti-interference properties than Sb(V) removal. For the Sb liquid in pure water matrix (Sb=1000 μg/L), when the dose was 60 mg/L and the final pH was 5.0, the independent removal of Sb(Ⅲ) and Sb(V) was 95% and 90%, respectively. Meanwhile, Sb(Ⅲ) removal in the PFS coagulation system remained stable within a wider pH range (pH=3–9). Sb(Ⅲ) could be preferentially removed in the solution column and had an inhibitory effect on the adsorption of Sb(V). Sb(Ⅲ) was also partially oxidized to Sb (V) during the coagulation process, which was influenced by the coagulant dosage and the solution pH. The results of the actual printing and dyeing wastewater (PDW) treatment indicated that the pre-reduction of Sb(V) to Sb(Ⅲ) could significantly increase the total Sb removal from 72.0% to 97.5%. The characterization results, such as Zeta potential and x-ray photoelectron spectroscopy (XPS), indicated that the Sb(Ⅲ) removal by PFS was achieved mainly through chemical adsorption. While the Sb(V) removal was realized by both chemical adsorption and electrostatic adsorption, the electrostatic adsorption contributed more than the chemical adsorption. This study provides a new idea for understanding the synergistic removal of Sb(Ⅲ) and Sb(V) using PFS in PDW advanced treatment.
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CLAY SCIENCE
·
2020
·
IF 4.605
Yaowu Cao,Qinghai Guo,Mengsi Liang,Weihao Sun
Antimony enrichment in aquatic environments is of great concern to international community. High-temperature geothermal waters usually contain excessive Sb, which are apt to contaminate the groundwaters or surface waters used as drinking waters in and around a hydrothermal area. However, Sb removal from geothermal water is rarely documented and the effect of high temperature on Sb removal has not received much attention. In this study, batch sorption experiments were conducted to investigate Sb removal from water by a hydroxyl-intercalated, mechanochemically synthesized Mg-Fe-LDH (i.e. Mg-Fe-OH-LDH) capable of avoiding secondary pollutions commonly related to other Mg-Fe-LDH intercalated by undesirable anions, such as Cl − and NO 3 − . The sorption capacities of Mg-Fe-OH-LDH for Sb(III) and Sb(V) were up to 48.7 and 30.0 mg/g, respectively. Notably, Mg-Fe-OH-LDH performed even better in removing aqueous Sb(V) at higher temperatures, superior to sorption of Sb by iron oxides that is generally exothermic and tends to be inhibited by increasing reaction temperature. The removal of Sb(V) existing as Sb(OH) 6 − by Mg-Fe-OH-LDH was attributable to its exchange with interlayer hydroxyl, and therefore could be impaired to some degree by coexisting anions with stronger electronegativity or smaller ionic radii . In contrast, anion exchange didn't contribute so much to Sb(III) sorption, because the main Sb(III) species at pH < 10 is neutral Sb(OH) 3 . XPS analyses confirmed that inner-sphere complexation between sorbed Sb(III) and Fe on Mg-Fe-OH-LDH layers was formed, which was hardly affected by competitive anions. Mg-Fe-OH-LDH is promising to be practically applied in removing both Sb(III) and Sb(V) from contaminated natural waters, wastewaters, or geothermal waters potentially acting as a pollution source .
研究领域:
环境科学
·
水处理
·
地球化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·Vol. 34
·期 33
·2400302
·
IF 18.5
Anding Xu,Mianying Huang,Chenxi Liu,Teng Li,Xue Li,Songping Wu,Zhiguang Xu,Yurong Yan
Constructing Sb atomic clusters with obvious size effect in Sb/C composites has great potential for boosting electrochemical reactivity toward ultrahigh rate and long-term sodium storage. However, how to balance the contradiction between ultra-small size of Sb atomic clusters and high loading in a specific Sb/C composite is an unprecedented challenge. Here, a facile in situ vaporization-reduction strategy is presented for preparing Sb atomic clusters@N, S co-doped carbon networks (Sb ACs@NSC). Featuring the high content of Sb atomic clusters (45.30 wt%, ICP) with superior electrochemical activity, robust Sb─O─C bond and N, S co-doped conductive carbon matrix, the Sb ACs@NSC electrode possessed ultrafast electrochemical kinetics and impressive long-term cycling stability for providing unprecedented rate capability of 245.7 mAh g −1 at ultrahigh rate of 80 A g −1 and maintaining highlighted capacity of 306.7 mAh g −1 after 1000 cycles under 10 A g −1 , outperforming all reported Sb-based materials for SIBs. The DFT calculations further revealed that the Sb─O─C bond and N, S co-doped carbon matrix are beneficial for stable adsorption capabilities and fast electrochemical kinetics of Na + . The designing compromised dense Sb atomic clusters and powerful interface bond will light on developing advanced atomic materials for energy storage and conversion.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2022
·
IF 8.943
Heng Li,Kaisheng Gong,Xiaoying Jin,Gary Owens,Zuliang Chen
Since antimony (Sb) is a toxic metalloid cost-effective method for the simultaneous removal of the two major Sb species from mining wastewater has attracted much attention. In this study, phytosynthesized iron nanoparticles ( n Fe) prepared using a eucalyptus leaf extract were successfully used to simultaneously remove Sb(III) and Sb(V) via an adsorption and oxidation mechanism with removal efficiencies of 100 and 97.7% for Sb(III) and Sb(V), respectively. Advanced analysis using X-ray photoelectron spectroscopy (XPS), ion chromatography-atomic fluorescence spectroscopy (IC-AFS), and electrochemical analysis confirmed that Sb(III) was oxidized to Sb(V) by Fe(III) on the n Fe surface while Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) indicated that both Sb(III) and Sb(V) were adsorbed onto n Fe. Adsorption of both Sb(III) and Sb(V) best fit the Langmuir adsorption model with R 2 of 0.999 and 0.989, respectively and both followed pseudo-second-order kinetics with R 2 of 0.999 and 0.981, respectively. Furthermore, the adsorption rate of Sb(III) was faster than that of Sb(V) due to inner-sphere complex formation, and the Fe–O bonds in the asymmetric tetrahedron structure of Sb(III) were easier to break due to a lower energy barrier (0.863 eV). Consequently, a simultaneous removal mechanism of Sb(III) and Sb(V) was proposed. Finally, n Fe was used practically to remove Sb in mining wastewater with a removal efficiency of 93.5%, demonstrating that n Fe have significant potential to remove Sb in contaminated mining wastewaters.
研究领域:
环境科学
·
纳米技术
·
水处理
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2013
·
IF 2.04
Yong Xiang,Xiaokun Zhang,Shu Zhang
Sb-doping has been demonstrated to be a new approach to promote Cu(In,Ga)Se 2 (CIGS) thin film formation . To study the mechanism of Sb-promoted CIGS formation, we investigated the influence of Sb on the evolution of the critical intermediate Cu–Se phases, and found that Cu 3 SbSe 3 species was formed. Phase change of the as-prepared Cu–Se compounds at elevated temperature was determined using the differential scanning calorimetry analysis. For samples containing Sb, the melting decomposition occurred at 507.1 °C, along with aggregation of nanocrystals into a bulk, while the morphology of the sample without Sb barely changed after heating. This result suggests that the mobile Cu 3 SbSe 3 is likely the key intermediate responsible for Sb-promoted CIGS formation. Furthermore, we extended the scope of Sb-doping approach to solvothermal synthesis and CIGS nanocrystals were synthesized with significantly promoted kinetics in the presence of Sb. Based on these results, we propose the mechanism of Sb promoted CIGS formation.
研究领域:
材料科学
·
太阳能电池
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2023
·Vol. 13
·期 5
·866
·
IF 3.4
Zhen He,Chen Yu,Jiaming Liu,Zengcheng Miao,Yuxin Wang
Sb-doped SnO2(SnO2-Sb) coatings show superiority in degrading toxic and refractory organic pollutants. SnO2-Sb coatings can be prepared by oxidizing electrodeposited Sn-Sb coatings through an annealing process. The properties and structure of SnO2-Sb coatings can be tailored by adjusting the preparation parameters. This study examines the effects of crucial preparation parameters on the performance of SnO2-Sb coatings, with the aim of enhancing their properties.Determining the coatings’ cross-sectional and surface characteristics was accomplished using various characterization techniques. A thorough investigation of the prepared samples’ phase and element components was also carried out. Based on the findings, the surface roughness of the prepared Sn-Sb precoating changed with increasing current density, yet the primary surface features of the SnO2-Sb coatings were hardly altered by the annealing process. Without lowering the coating thickness, the appropriate current density of 30 mA/cm2produced a rough and active coating surface. Our study’s proper annealing temperature of 600 °C transformed Sn-Sb precoating into SnO2-Sb coating and achieved excellent coating quality.While changes in the Sb content affected the morphology of the prepared SnO2-Sb coatings, the mixed oxide coatings’ cassiterite SnO2phase was unaffected. These results may provide insights into the optimized use of SnO2-Sb coatings in various applications.Keywords:SnO2-Sb;electrodeposition;structures
研究领域:
材料科学
·
环境工程
✓ 已验证
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Min Li,Weiqi Wang,Mengxiaojun Wu,Jingwen Lei,Xiaolu Lu,Hongmei Wang
In this study Paraccocus versutus XT0.6 was employed to address the mechanism of microbial dissolution and oxidation of stibnite. Results showed that with the growth of XT0.6, pH increased to 9.0 in both microbe-mineral contact (MM) and microbe-mineral non-contact groups (M[M]). Dissolved Sb(III) was released from stibnite, which was subsequently quickly oxidized to Sb(V) completely in MM and partially in M[M] groups. On the contrast, the final pH decreased to 6.5 and 4.9, respectviely, in system amended with extracellular secretion (EM) of XT0.6 and abiotic groups. Dissolution of stibnite and oxidation of Sb(III) were also observed in EM group, suggesting a potential contribution of extracellular enzyme in Sb(III) oxidation. The dissolution and oxidation rates were the highest in MM group, followed by those in M[M], EM and abiotic groups. To be noted, Sb(V) concentration decreased in MM group on the fifth day, which might indicate the formation of Sb(V)-bearing secondary mineral. Genome of XT0.6 consisted of two chromosomes and one plasmid, and most genes responsible for antimony oxidation and antimony resistance were located on the chromosomes. Proteomics analysis of the extracellular secretions indicated the up-regulated proteins were mainly related to electron-transfer, suggesting their potential role in Sb(III) oxidation.
研究领域:
微生物学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS ES&T Engineering
·
2024
·
IF 7.4
Hui-Wen Huo,Xiao-Qiong Wu,Jia-Fang Xie,Ding Li,Quan-Bao Zhao,Yu-Ming Zheng
Chemical oxygen demand (COD) indicates the relative content of organics in water. The electrochemical measurement of COD is a promising ecofriendly alternative method for rapidly, automatically, and highly accurately determining the content of organics in water. However, the key anodes must possess high catalytic efficiency and long-term stability, be easy to prepare, and be free of heavy metal leaching. Therefore, in this study, a SnO2–Sb-based porous anode was prepared using simple coating and calcination. Because of its porous, conductive, and robust Ti felt/Pt (TF/Pt) substrate, the anode (TF/Pt/SnO2–Sb) possessed stable current responses that were highly correlated (R2 = 0.999) with COD measurements in the range of 20–6000 mg L–1. The detection limit was 3.03 mg L–1 (at a signal-to-noise ratio of 3), and the relative standard deviation was within 3.2% (n = 10), which is superior to those of the standard dichromate detection method. The further assembly of a flow-through system with the proposed anode exhibited a wider linear range of up to 8000 mg L–1 at a lower sample injection volume of 50 μL. These results suggest the application potential of the electrochemical method with the porous TF/Pt/SnO2–Sb anode as a reliable alternative for sustainable COD determination.
研究领域:
环境科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2021
·
IF 6.024
Kaixuan Cui,Wang Zhao,Dongmei Zhou,Shengwei Li,Chunrong Liu,Ping Li,Xuanhui Qu
The corrosion of a liquid Sb–Sn alloy on a positive current collector (PCC) can seriously affect the performance of Li||Sb–Sn liquid metal batteries (LMBs) and hinder their industrial applications. This work systematically investigated Ti, Mo, and W as the PCCs of Li||Sb–Sn LMBs corrosion behaviors and electrochemical properties. The corrosion mechanism and cell performance recession reason are illuminated based on compatibility analysis and electrochemical measurements. Ti and Mo are more easily dissolved in the liquid Sb–Sn alloy than W, forming Ti–Sb–Sn and Mo–Sb–Sn corrosion products. The average corrosion rates of Ti, Mo, and W in the liquid Sb-Sn alloy are 0.105, 0.068, and 0.014 mm/a, respectively. These corrosion behaviors not only affect the cell voltage and capacity to varying degrees but also may cause potential security liability. Hence, W is an admirably stable PCC of Li||Sb–Sn LMBs, which can also serve as an electroconductive and corrosion-resistant protective coating to reduce cost and solve the forming problem.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
CURRENT MICROBIOLOGY
·
2012
·Vol. 65
·期 6
·733-741
·
IF 1.815
Wang Shuzhi,Pan Xiangliang
In this study, effects of antimony Sb(V) on growth, pigments content, oxygen evolution, and photosystem II (PSII) activity of Microcystis aeruginosa were investigated. JIP-test, Q
− A
reoxidation kinetic test and S-state test were used in this study to study the energy distribution and electron transport in PSII. Treatment with Sb(V) at various concentrations ranging from 5 to 100 mg/l had long-term effects on growth, pigments content, and oxygen evolution of M . aeruginosa . Low concentration of Sb(V) had no significant inhibition of the biomass production and PSII activity but inhibited the pigment synthesis. Growth, pigments content, oxygen evolution, and PSII activity were seriously inhibited when treated by high concentration of Sb(V) (100 mg/l). The target sites of Sb(V) toxic effect on the PSII of M . aeruginosa were mainly on the donor side and the apparatus in the light-dependent reaction. The quantum yield for photochemistry, density of reaction centers and photosynthesis performance index decreased, whereas the dissipated energy increased. PSII activity of M . aeruginosa was promoted when exposure to 50 mg/l Sb(V) by increasing the density of active reaction centers and electron transport after Q
− A
.
研究领域:
环境科学
·
微生物学
·
植物生理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2020
·
IF 3.83
Yanan Gao,Juncheng Liu,Beiping Dong
Dust on outdoor glass will significantly reduce glass transmittance in various applications and even damage solar cell panels. Here, the effects of Sb doping on the structure and photoelectric properties of a Sb-doped SnO 2 –SiO 2 (ATO-SiO 2 ) film prepared on a glass substrate with a sol-gel method and the dust removal performance of the resulting film were studied. The results show that the Sb-doped SnO 2 –SiO 2 film consists of a SnO 2 tetragonal rutile phase, but the doped Sb decreases the sample crystallinity. With an increase in the Sb doping concentration, two lattice parameters of the ATO-SiO 2 film, a and c , show “M"-shaped changes. The nanoparticle size first decreases and subsequently increases when the Sb doping concentration is over 6 mol%. The transmittance of the substrate glass coated with this film in the visible wavelength range (380–780 nm) decreases from 86.3% to 82.7%. The square resistance first decreases and subsequently increases, while the dust removal performance first increases and subsequently decreases. At a 12 mol% Sb doping concentration, the square resistance is minimal (4.64 × 10 6 Ω/□). The maximal dust removal performance is 64%.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）