RESOURCES CONSERVATION AND RECYCLING
·
2021
·
IF 10.204
Liming Yang,Genping Yi,Bo Wang,Penghui Shao,Yufa Feng,Yanbiao Liu,Kai Yu,Fuqiang Liu,Lingling Liu,Xubiao Luo,Shenglian Luo
Simultaneous recovery and value-added conversion of hazardous heavy metal ions from complex wastewater sources is of great significance yet challenging. Herein, we demonstrate that highly toxic antimonite Sb(III) could be effectively recovered from antimony (Sb) mine flotation wastewater and converted into high-value-added metallic Sb using a novel facile atomic H* enhanced electrochemical reduction avenue coupled with thermal reduction by H 2 gas. The high production of atomic H* generated from the electrochemical cathode with an optimum reduction potential of –1.2 V vs . Ag/AgCl, which is lower than the Sb(III) reduction potential of –1.0 V, might be attributable to the superior Sb recovery capabilities. Furthermore, the metallic Sb concentration at –1.2 V was 14.43 times greater than at –1.0 V due to the strong reductivity of atomic H*. In addition, Sb(III) removal efficiency was found to be as high as 98.52%, with a metallic Sb recovery rate of up to 1.67 mg min –1 . The efficiency of Sb(III) recovery was demonstrated throughout a wide pH range, with metallic Sb being the main product, independent of the presence of multiple coexisting ions. Economic analysis also indicated that treating Sb mine flotation wastewater per ton may yield a net profit of $40.09. This research contributes to the advancement of an atomic H* enhanced electrochemical technology for high-valued heavy metal recovery from complex heavy metal-polluted wastewater.
研究领域:
环境科学
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冶金工程
·
电化学工程
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高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2025
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IF 6.3
Qianyi Li,Yuxuan Zheng,Jingyao Zhang,Zhiyong Xiong,Haibo Jin,Yuefeng Su,Caihong Feng,Ning Li,Chengzhi Wang,Jingbo Li
Cesium tungsten bronze (Cs x WO 3 ) is of significant interest due to its unique spectral selectivity, which is utilized in transparent thermal insulation coatings. However, the low-cost batch preparation of Cs x WO 3 nanopowders remains a challenge. In this study, we performed an Sb doping modification of Cs x WO 3 . It was observed that Sb doping makes Cs x WO 3 more prone to breakage, facilitating the preparation of nanoparticle Cs x WO 3 through a simple solid-state reaction followed by mechanical milling. A 7 % Sb doping results in a small average particle size of 108 nm using moderate ball milling. Meanwhile, appropriate Sb doping enhances the transparent thermal insulation properties of Cs x WO 3 . A 3 % Sb doping raises the integrated visible light transmittance ( T lum , 380–780 nm) of Cs x WO 3 from 61.7 % to 65.40 %, and improves the near-infrared shielding efficiency ( Ψ NIR , 780–2500 nm) from 61.20 % to 65.92 %, increasing by approximately 4 % and 5 %, respectively. The reasons for these property improvements are discussed based on experiments concerning bandgap ( E g ) and oxygen vacancy concentrations induced by Sb doping. This study indicates that Sb doping of 1–3 at% can produce Cs x WO 3 nanopowders with better performance in a low-cost method, which is of great significance for advancing the production and practical application of nano-sized tungsten bronze powder in energy-saving coatings.
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RSC Advances
·
2016
·Vol. 6
·期 53
·48043-48048
·
IF 3.289
Ying Duan,Ye Chen,Qing Wen,Tigang Duan
We have developed a simple and effective way to fabricate Ti/Sb–SnO2 electrodes by electrodeposition from a dimethyl sulfoxide solution. The electrode surface exhibits a distinct cauliflower-like structure with a small grain size. Its electrochemical properties have been evaluated by electrochemical impedance spectroscopy and accelerated service life tests; furthermore, the results were compared with those obtained for an electrode prepared from aqueous solution. The DMSO-prepared electrode has low charge transfer resistance (22.71 vs. 107.60 Ω) and high stability (59.3 vs. 2.8 h). Moreover, its ability to electrochemically decolorize methyl orange and rhodamine B is greatly improved.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Ning Zhang,Ying Tang,Huaicheng Xiang,Liang Fang
Two cubic garnet ceramics, Ca 3 B 2 ZnGa 2 O 12 ( B = Nb, Sb), were synthesized via the solid-state approach, where Zn 2+ and Ga 3+ jointly occupied the tetrahedra ( C -site), and Nb 5+ (or Sb 5+ ) fully occupied the octahedra ( B -site). Ca 3 Nb 2 ZnGa 2 O 12 ceramic sintered at 1390 °C possessed a relatively larger ε r , τ f , and Q × f value of 16.57, −44.0 ppm/°C, and 39,200 GHz compared to ε r = 9.04, Q × f = 25,300 GHz, and τ f = −61.2 ppm/°C for Ca 3 Sb 2 ZnGa 2 O 12 fired at 1270 °C. Bond valence, ionic polarizability, packing fraction, Raman spectroscopy , and the P–V-L chemical bond theory were used to investigate the intrinsic factors affecting microwave dielectric properties . Compared with the measured permittivity ε r , the theoretical permittivity ε r (C-M) of Ca 3 Nb 2 ZnGa 2 O 12 is underestimated, and Ca 3 Sb 2 ZnGa 2 O 12 shows the opposite trend, which is mainly related to the under- and over-bonding in the structure. The packing fraction of Ca 3 Nb 2 ZnGa 2 O 12 is slightly lower than that of Ca 3 Sb 2 ZnGa 2 O 12 , but it does not lead to the low Q × f value of Ca 3 Nb 2 ZnGa 2 O 12 . The variation in Q × f was related to relative density, weak short-range order (SRO), and lattice energy. The minus sign and magnitude of τ f for both ceramics were determined by their large positive τ αm values.
研究领域:
材料科学
·
化学
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高影响因子
RSC Advances
·
2016
·Vol. 6
·期 115
·114790-114799
·
IF 3.289
Shuang Liao,Gongzheng Yang,Chengxin Wang
Sodium-ion batteries (SIBs) have drawn growing interest as alternative energy-storage devices for lithium ion batteries owing to sodium's natural abundance, low cost and environmental benignity. To date, exploitation of suitable anode materials with high capacities and fast sodium ion uptake/removal for SIBs is still a great challenge. Herein, a sea-island-like SbNPs@C nanocomposite composed of Sb nanoparticles (NPs) uniformly embedded in a carbon matrix was synthesized via a facile, low cost, and high yield hydrothermal method followed by an annealing process. When used as anode materials for SIBs, the as-obtained SbNPs@C nanocomposite electrodes exhibited superior electrochemical performances (a high reversible capacity of 622 mA h g−1, 91% capacity retention over 110 cycles at 100 mA g−1 and a good rate capability of 444 mA h g−1 at 1000 mA g−1) and offered a good choice for advanced SIB anode materials.
研究领域:
材料科学
·
能源存储
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Jing Zhou,Qing Chang,Da Zhang,Li Gao,Yong Gao,Long Wang,Jiayi Shang,Yu Cao
Antimony (Sb) is an attractive anode material for sodium-ion batteries (SIBs) owing to its low operating potential, low cost, and high theoretical capacity. However, the large volume expansion of Sb during the Na alloying/dealloying process, which greatly limits its application in SIBs. Simultaneously, as the temperature decreases, the formation of a poor coating on the anode surface significantly increase the difficulty of Na + transmission. Herein, Sb-graphite-NaF (SCF) ternary composites were prepared by an easy to operate and low-cost ball milling method, which significantly improved the cycling stability and extended to the operation temperature of Sb-base SIBs. A small amount of NaF induces the formation of an inorganic-dominated NaF-rich stable solid electrolyte interphase (SEI) on the Sb anode surface, which can cooperate with graphite to inhibit volume expansion of the Sb particles during sodium storage, enhance conductivity and accelerate Na + diffusion at room and low temperatures. As a result, the SCF electrode with propylene carbonate-base electrolyte delivered a discharge capacity of 458.4 mAh g −1 after 160 cycles at 500 mA g −1 at 20 °C. When matched with diethylcarbonate-based electrolyte at −20 °C, it had a specific capacity of 299.8 mAh g −1 after 120 cycles and a capacity retention rate of 86.2 %. This study shows that the interface stabilization strategy with a suitable electrolyte can improve the cycling stability of anode materials, provide a new idea for constructing NaF-rich SEI, and a new approach for applying Sb-based materials in low-temperature SIBs.
研究领域:
材料科学
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能源存储与转换
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Yu Tian,Yifei Guan,Fang Yu,Jichao Li,Jian Liu,Shengqing Xia
While transition metal doping is widely adopted to optimize Mg3(Bi, Sb)2-based thermoelectrics, conventional high-concentration doping inevitably induces detrimental grain boundary segregation, creating a convoluted mixed effect that obscures the intrinsic regulatory roles of the dopants. To systematically unveil these fundamental impacts, we establish a low-concentration doping paradigm. By synergizing a precisely controlled low-concentration strategy with an optimized synthesis process, 3d transition metals (Mn, Fe, Co, Cu) are homogeneously incorporated into the bulk lattice without boundary enrichment. Based on this homogeneous microstructural framework, distinct doping effects are systematically revealed. Fe and Co act as highly efficient electron donors, elevating the carrier concentration to >1.5 × 1020 cm–3. In contrast, Mn fundamentally optimizes the carrier scattering mechanism via effective mass reduction, leading to a remarkable 2.6-fold enhancement in carrier mobility. Consequently, the lightly Mn-doped sample achieves an optimal balance, yielding a peak power factor of ∼30.7 μW/(K2cm) and a maximum zT of 1.03. Furthermore, this homogeneously doped sample demonstrates optimized macroscopic durability, retaining consistent electrical properties after 3-month ambient air exposure and withstanding 50 rigorous thermal shock cycles. Ultimately, this work clarifies how homogeneously incorporated dopants regulate transport properties and stabilize the crystal matrix, establishing precise low-concentration as a robust framework for high-performance and durable thermoelectrics.
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PubMed
高影响因子
ACS Applied Electronic Materials
·
2026
·
IF 4.7
Soumya Shukla,Rajnish Kurchania,Ramarajan Ramanathan
A highly conductive, transparent conducting electrode (TCE) based on Ba and Sb codoped tin oxide (BATO) has been successfully spray-deposited for dye-sensitized solar cell (DSSC) applications, offering a promising alternative to conventional fluorine-doped tin oxide/indium tin oxide (FTO/ITO) electrodes. ATO is one of the most extensively studied TCE materials. However, its commercialization remains limited due to suboptimal electrical conductivity and optical transparency. The present research focuses on enhancing these properties by introducing Ba as a codopant in ATO thin films. Barium codopant effectively decreases the grayish color and helps optimize oxygen-vacancy density, which enhances electrical conductivity in ATO thin film. The spray-deposited large-area (10 × 10 cm2) BATO thin film exhibits an enhanced optical transmittance of 86%, a low resistivity of 4.605 × 10–4 Ω·cm, and a minimum sheet resistance of 13.7 Ω/□ significantly outperforming the corresponding ATO film. Importantly, the suitability of BATO and ATO electrodes was evaluated in DSSC devices, and the obtained results were compared to those of DSSCs employing commercial FTO electrodes. A power conversion efficiency (η) of 3.27% was recorded for the DSSC employing the BATO electrode, outperforming the ATO-based counterpart, which exhibited an efficiency of 2.39%. Interestingly, the alternative BATO electrode significantly reduces the reliance on indium-based TCOs and mitigates the optimization challenges associated with FTO electrodes, thereby contributing to a more cost-effective fabrication of DSSC solar cell devices.
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高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2026
·
IF 7.9
Yahui Shi,Zhixiang Zhang,Heyu Wan,Lin Ma,Heng Chen,Ying Li,Jiahui Dai,Dongjin Wan
This study developed a sulfur autotrophic bioreactor that could effectively remove Sb(V) of ppm (10 mg/L) and ppb (500 μg/L) levels in water through sulfur autotrophic reduction, sulfur disproportionation and in-situ precipitation. At the longest hydraulic retention time (i.e., HRT = 5.42 h for ppm Sb(V) level and HRT = 12.0 h for ppb Sb(V) level), the bioreactors performed well, with removal efficiencies of 97.1%, 96.2% for Sb(V), and 96.3%, 47.0% for the total Sb (TSb), respectively. Sb(V) removal by sulfur autotrophic reduction matched well with First-order kinetic model, implying that Sb(V) concentration was the main controlling factor limiting its removal. The measured SO 4 2- increment and alkalinity consumption in effluent were higher than the theoretical values owing to the occurrence of sulfur disproportionation. At the end of bioreactor operation, the in-situ precipitates were characterized and confirmed to be Sb 2 S 3 . Given arsenic (As) toxicity mechanism in KEGG database, the mechanistic response of organisms to Sb(V) was attributed to the reactive oxygen species (ROS) from the highly toxic methyl compounds of Sb(III). Proteobacteria was the dominant phylum for Sb(V) removal, and Sulfuricurvum and Microbacter (at genus level) played key roles for Sb(V) reduction and sulfur disproportionation, respectively. Download: Download high-res image (291KB) Download: Download full-size image
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高影响因子
Advanced Science
·
2026
·
IF 14.1
Guangmeng You,Jingdan Lei,Kai Xu,Yuntian Fu,Xueke Gu,Chengxiao Peng,Zhen Wang,Jing Chen,Kunpeng Zhao,Chao Wang
Mg 3 (Sb,Bi) 2 has emerged as one of the most promising thermoelectric materials with the potential to complement commercial bismuth telluride. However, its performance is still hindered by pronounced carrier grain-boundary scattering, relatively high lattice thermal conductivity, and poor chemical stability. In this work, we reveal the multifaceted role of Ta in enhancing the thermoelectric performance of Mg 3 (Sb,Bi) 2 -based materials. The incorporation of Ta not only increases carrier concentration through the donor effect, but also boosts carrier mobility by promoting grain growth and reducing the potential barrier. Meanwhile, Ta point defects together with metallic Ta precipitates induce strong phonon scattering, leading to a substantial reduction in lattice thermal conductivity. These synergistic effects yield outstanding TE performance, with a remarkably high zT plateau of 1.8 between 573 and 723 K, surpassing the performance of most previously reported Mg 3 (Sb,Bi) 2 systems. Moreover, a TE module constructed by both p-type and n-type Zintl phases achieves a high conversion efficiency of 9.6% at ΔT of 460 K. This work takes an important step toward the practical application of Mg 3 Sb 2 -based TE materials and devices.
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PubMed
高影响因子
ENVIRONMENTAL POLLUTION
·
2025
·
IF 7.3
Qi Huang,Xiaohu Jin,Zirui Hu,Ziwen Zhong,Yitao Cai,Qian Yao,Xiaofei Li,Xueqin Tao,Zhi Dang,Guining Lu
Antimony (Sb) pollution is becoming a non-negligible issue due to its toxic and carcinogenic properties. In mining areas, jarosite is a main host mineral for Sb(V), and its transformation may seriously influence the fate of Sb. In this study, we examined the transformation of Sb(V)-coprecipitated jarosite in the presence of oxalic acid (OA) and Desferrioxamine B (DFOB), and explored the resulting repartition of Sb. Results showed that OA and DFOB retarded jarosite dissolution but promoted Fe(III) and Sb(V) release, playing a combined role in this retardation and promotion. In treatment without OA or DFOB, jarosite transformed into hematite and goethite. In DFOB-only systems, DFOB did not change the jarosite transformation pathway; goethite and hematite were still the dominant products, and aqueous Fe(III)-DFOB complexes were formed. In OA-only systems, the re-adsorption of aqueous Fe(III)-OA complexes on the mineral surface may result in another recrystallization pathway, forming goethite. In OA-DFOB systems, DFOB competed with OA for Fe(III), forming Fe(III)-DFOB complexes and delayed OA-induced jarosite transformation into goethite. By the end of all reactions, more than 99.94 % of total Sb was retained by neo-formed secondary Fe(III) minerals. OA drove more Sb to become phosphate-extractable, and DFOB drove the above phosphate-extractable Sb into poorly crystalline phases or residual phases.
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PubMed
高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Ying Wang,Zeyu Lyu,Pengcheng Luo,Zheng Lu,Dashuai Sun,Taixing Tan,Shuai Wei,Hongyang Zhang,Hanyu Hu,Hongpeng You
A series of solid-solution phosphors Ba 3 Sb 1- y Ta y Ga 3 Si 2 O 14 :Bi 3+ (0.0 ≤ y ≤ 1.0) were created using the high-temperature solid-state reaction. The crystal structure of Ba 3 Sb 1- y Ta y Ga 3 Si 2 O 14 belongs to trigonal crystal system with space group P321 (150) . The Rietveld refinements indicate that the Bi 3+ ions occupy the Ba 2+ sites. Ba 3 Sb 1- y Ta y Ga 3 Si 2 O 14 :0.03Bi 3+ has tunable luminescence property peaking from 531 to 492 nm as the Sb 5+ ions are gradually replaced by Ta 5+ ions, which are correlated with the crystal field strength variation causing by the substitution of Sb 5+ by Ta 5+ . The thermal stability of the emission at 423 K was improved from 5.4 to 49.9 %. When the obtained Ba 3 SbGa 3 Si 2 O 14 :0.03Bi 3+ /Ba 3 SbGa 3 Si 2 O 14 :0.03Bi 3+ ,0.015Eu 3+ was used as green light component, white LED devices were achieved with low CCT of 4613/4748 K and high Ra of 90.9/95.5. Moreover, multicolor luminescence was constructed by introducing red-emitting Eu³⁺ ions to create Ba 3 SbGa 3 Si 2 O 14 :0.03Bi 3+ ,0.015Eu 3+ and Ba 3 TaGa 3 Si 2 O 14 :0.03Bi 3+ ,0.015Eu 3+ phosphors. Under different excitation conditions, the multicolor emissions provide multi-modal and easily distinguishable anti-counterfeiting patterns. Our work demonstrates the feasible construct of tunable emission from Bi 3+ -doped solid-solution phosphors, providing a valuable candidate for diverse optical applications.
研究领域:
材料科学
·
光学工程
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高影响因子
危险品化学品经营许可证（带存储）