SEPARATION AND PURIFICATION TECHNOLOGY
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2019
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IF 5.107
Nana Xiong,Peng Wan,Guocheng Zhu,Fubing Xie,Shengnan Xu,Chuanqu Zhu,Andrew S. Hursthouse
A series of environmental and health problems caused by the release of large quantities of antimony into the water environment have received wide social concern in a number of regions worldwide. Finding a feasible treatment technology is the best choice for the sustainable remediation of antimony pollution. A novel nano-modified chitosan (NMCS) was prepared by grafting iron oxide nanoparticles (Nano-Fe 3 O 4 ) and carboxylate metal organic frameworks (MOFs) denoted as MIL-100(Fe) onto chitosan. The NMCS before and after adsorption was characterized by analytical tools including Fourier transform infrared and X-ray photoelectron spectroscopy. Batch experiments with variable NMCS dose, solution pH, and competing anions were used to evaluate the most efficient way to remove Sb (III) from aqueous solutions. The results showed that removal efficiency increased with the increase of the NMCS concentration and solution pH, respectively. The maximum removal efficiency of Sb(III) was 96.8%, at pH 11 with 1.5 g/L of NMCS when treating a Sb(III) model solution of 10 mg/L, which is much higher than that with Nano-Fe 3 O 4 or MOFs. Compared with the efficient removal of Sb(III) under acid conditions, NMCS has a higher removal efficiency under alkaline conditions. The effect of common anions such as sulfate, carbonate, nitrate and chloride ions, on the removal of Sb(III), was minor. The removal of Sb(III) could be clearly described by pseudo-second order sorption kinetics and Freundlich isotherm, which suggested inner-sphere surface binding mechanisms. The presence of Sb (III) on NMCS was confirmed by an X-ray photoelectron spectroscopic analysis, and those functional groups binding to Sb (III) were identified using Fourier transform infrared analysis. The ability of NMCS to be regenerated was good and further enhanced by the possibility of magnetic recovery. Overall, the findings tested in this study showed that the NMCS developed can effectively remove Sb(III) from aqueous solutions and can be effectively recovered and reused.
研究领域:
环境科学
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水处理
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材料科学
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纳米技术
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
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2022
·
IF 5.532
Junying Xiao,Zhidong Pan,Ti Zhang,Youjun Lu,Yanmin Wang
Mica/(Ni, Sb)-co-doped rutile yellow composite pigment with a high near-infrared reflectance was prepared via mechanochemical pretreatment and subsequent sintering. (Ni, Sb)-co-doped rutile yellow pigment was synthesized by a solid-phase method in the presence of sodium fluoride (NaF) as a mineralizer, and mica was peeled by ultrafine grinding . The pigment, mica and mica/pigment composite were characterized by X-ray diffraction, laser diffraction particle size analysis , nitrogen gas adsorption method, scanning electron microscopy, energy dispersive spectroscopy, ultraviolet–visible–near-infrared spectroscopy, CIE L * a * b * color scales, and infrared irradiation image, respectively. The results show that the temperature of synthesizing a pure rutile pigment in solid-phase reaction is reduced by 100°C due to the addition of mineralizer NaF. (Ni, Sb)-co-doped rutile pigment has better color rendering performance and near-infrared (NIR) reflectance. Ultrafine grinding produces the finer flatty mica particles with fresh reflective surfaces, thus improving NIR reflectance of peeled mica. In mica/pigment composite prepared via mechanochemical pretreatment and subsequent sintering, peeled mica has a synergistic effect on (Ni, Sb)-co-doped rutile pigment particles to further scatter near-infrared radiation through the multiple layer reflections, leading to a better heat insulation . The high near-infrared reflectance of composite pigment increases to 97.72%, and the b * value of the pigment synthesized with 1 wt% NaF is 37.77. For the irradiation infrared lamp, the surface temperature of aluminum plate coated with mica/(Ni, Sb)-co-doped rutile yellow composite pigment is 40.1 ± 0.2°C, which is lower than that of aluminum plate uncoated determined by thermal camera and thermocouple. When aluminum plate coated with mica/(Ni, Sb)-co-doped rutile yellow composite pigment is under sunshine, its surface temperature is 38.6 ± 0.2°C. In addition, the mechanism of preparing the composite pigment via mechanochemical pretreatment and subsequent sintering and the multiple structure reflection effect on peeled mica surface coated with (Ni, Sb)-co-doped rutile yellow pigment particles were also discussed.
研究领域:
材料科学
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化工
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颜料技术
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热绝缘
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Yonghui Tu,Xiaoxiao Yu,Yangbo Qiu,Long-Fei Ren,He Li,Guangzhi Hu,Jiahui Shao,Liang Wu,Xinyuan Zhu
Exhausted adsorbents from Sb-laden wastewater are hazardous and generally landfilled. This study presents that exhausted Sb adsorbents can be thermally reduced and recycled as supercapacitor electrode. Specifically, ordered hierarchical porous amidoxime-polyacrylonitrile (OHPAPAN) is synthesized for highly efficient Sb(V) ions adsorption and then thermal conversion of exhausted OHPAPAN to Sb-contained char, rendering excellent electrochemical activity. Sb 0 atom clusters are found to form during recycling process by X-ray absorption spectroscopy (XAFS), along with Sb oxide with average valence of +2.63. The 4d and 4p orbital of Sb cluster exhibits abundant electron state in Fermi level and valence band, making a pseudocapacitive contribution. Moreover, ordered hierarchical pore is confirmed to be inherited in the char from OHPAPAN, further enhancing electrical double layer capacitance. Coordination configuration of Sb and N/O becomes more stable from sexadentate (coordinate atom distance of 1.98 and 2.66 Å) in OHPAPAN to ≈2 N/O ligands in Sb-contained char (1.97 Å), underlining the shorter atom distance and higher orbital energy for Sb immobilization. Consequently, the capacitance maintains 96.1% after 6000 cycles, indicating that its excellent stability can rival relevant commercial electrode. This study offers a novel insight that Sb mineral sources can be derived from industrial wastewater, not just mining activity.
研究领域:
环境科学与工程
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材料科学
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电化学
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废弃物资源化
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纳米材料
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
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2017
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IF 2.124
Quan Guo,Yantao Xu,Haitao Guo,Xusheng Xiao,Changgui Lin,Xiaoxia Cui,Pengfei Wang,Fei Gao,Min Lu,Bo Peng
A serial (100 − x)Ge 25 Sb 10 S 65 -xI (x = 0, 5, 10, 15, 20, 25 and 30 wt%) chalcohalide glasses and ones doped with 0.1 wt% Dy 3 + rare-earth ions were synthesized and their structural, thermal and optical properties were systematically studied. It indicates that addition of I 2 into Ge 25 Sb 10 S 65 glass significantly decreases the connectivity of glass network and average bond energy, and modifies the associated properties. The glass transition temperature and refractive index decrease monotonically, and the density increases almost linearly with the increasing of iodine content in glass. The thermal stability is improved, which has a maximum of ΔT max = 174 °C. While the optical bandgap has a peak value at x = 10 wt%. The absorption spectra and mid-infrared fluorescence spectra of Dy 3 + rare-earth ions doped glasses were investigated together with the Judd-Ofelt analysis. GeS 2 nano-crystals were found in the sample with x ≥ 15 wt%, which is supposed to induce enhancements of mid-infrared fluorescence at 2.95 and 4.32 μm.
研究领域:
材料科学
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光学
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固体物理学
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化学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Xin Li,Jun-Hao Wang,Chen-Yue Yuan,Qi-Wen Sun,Jiang Shao,Xing-Chi Li,Zhao-Lu Feng,Hao Dong,Chen Li,Ya-Wen Zhang
The CO 2 electroreduction reaction using sustainable electricity emerges as a viable strategy to produce high-value-added and profitable chemicals. The achievement of superior activity at a lower overpotential and higher selectivity in a wide potential window is vitally important for large-scale industrial applications. Herein, a carbon-composite amorphous porous BiSbO x nanotube with abundant unsaturated sites is reported to boost the conversion of CO 2 to formate, exhibiting a formate selectivity of >90% in an extremely broad range of potentials from −0.5 to −1.4 V versus reversible hydrogen electrode (RHE) and a maximal energy conversion efficiency of 77.1%. Importantly, pure formic acid solution is directly obtained in a solid-electrolyte cell for industrial-scale applications. The porous tubular structure can expose more catalytic active sites, accelerate the mass transfer, and show fast surface charge transfer. Moreover, the unique coordination-unsaturated Sb-stabilized BiO 8−x site can not only enhance the adsorption and activation of CO 2 but also reasonably balance the stabilization and hydrogenation of *OCHO intermediate, thus leading to its obviously higher catalytic performance. As a result, a novel amorphous porous BiSbO x nanotube is successfully designed for efficient CO 2 electroreduction, which may shed new light on developing many more amorphous composite metal oxide catalysts for conversion of inert small molecules.
研究领域:
电化学
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纳米材料
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催化
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材料科学
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能量转换
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
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2023
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IF 9.2
Chaochao Wei,Chuang Yu,Ru Wang,Linfeng Peng,Shaoqing Chen,Xuefei Miao,Shijie Cheng,Jia Xie
Chlorine-rich lithium argyrodites with ultrahigh ionic conductivity show great potential as solid electrolytes in all-solid-state batteries, while the poor moisture and lithium metal compatibility limit their applications. Here, by tailoring Sb and O dual dopant , Li 5.5 P 0.96 Sb 0.04 S 4.40 O 0.10 Cl 1.5 electrolyte delivers a high Li-ion conductivity up to 7.20 mS cm −1 , excellent air/moisture and lithium metal endurance. The improved air stability is due to the strong Sb–S and P–O bonds in the co-doped electrolyte, inhibiting the reaction with water. While the enhanced lithium metal stability is attributed to the formation of the Li–Sb alloy layer , impeding the growth of lithium dendrites during cycling. The lithium symmetric cell using Li 5.5 P 0.96 Sb 0.04 S 4.40 O 0.10 Cl 1.5 exhibits high critical current density (1.5 mA cm −2 ) and ultralong cyclability (750 h, 0.1 mA cm −2 ). The all-solid-state lithium metal battery using LiNi 0.6 Mn 0.2 Co 0.2 O 2 cathode affords a high initial discharge capacity of 144.2 mAh g −1 at 0.1C. Moreover, the assembled battery shows a discharge capacity of 116.2 mAh g −1 at 0.5C and a capacity retention rate of 83.2% after 200 cycles. This work provides the guideline to design sulfide solid electrolytes that enable all-solid-state lithium metal batteries with high energy density and long cyclability.
研究领域:
材料科学
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电化学
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电池技术
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
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2018
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IF 4.439
Zhong-yi Wang,Rui-tang Guo,Xu Shi,Wei-guo Pan,Jian Liu,Xiao Sun,Shuai-wei Liu,Xing-yu Liu,Hao Qin
The Cu/TiO 2 catalysts modified by Sb were compounded through the sol-gel way and put into use for the selective catalytic reduction (SCR) of NOx with NH 3 . Experimental results suggested that CuSb/TiO 2 -0.4 exhibited the excellent NOx conversion and SO 2 tolerance. Subsequently, the relationship between surface physicochemical properties and catalytic performance was also investigated by different characterization methods. From characterizations, the introduction of Sb for Cu/TiO 2 could promote the generation of more Cu 2+ , surface adsorbed oxygen species and surface acid sites on CuSb/TiO 2 -0.4 catalyst. Furthermore, Sb species on CuSb/TiO 2 -0.4 could contribute to the formation of more surface ad-NOx and ad-NH 3 species, which would enhance the NH 3 -SCR process effectively through both the Langmuir-Hinshelwood (L-H) and Eley-Rideal (E-R) mechanisms.
研究领域:
催化
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环境科学
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材料科学
✓ 已验证
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2022
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IF 10.753
Qiao Li,Xinyue Ma,Chengsi Qi,Rui Li,Wei Zhang,Jiansheng Li,Jinyou Shen,Xiuyun Sun
Effective removal of Sb(III) and Sb(V) has long been an urgent task for protecting human health and environment. In this study, novel magnetic mesoporous Fe Mn binary oxides (MMFMs) were fabricated via calcinating the Mn encapsulated carboxymethyl cellulose-Fe(III) hydrogel, and the structure of MMFMs were closely related to the Fe:Mn ratio. Owing to the mesoporous structure together with synergistic effect of Fe Mn binary component, the MMFMs exhibited excellent mass transfer and adsorption ability to Sb(III) and Sb(V). MMFM 3 achieved a maximum Sb(III) and Sb(V) adsorption capacity of 281.5 and 204.6 mg/g, respectively. Co-existing anions of Cl − , NO 3 − and SO 4 2− exhibited marginal influence on the adsorption for both Sb(III) and Sb(V), except the PO 4 3− for Sb(III) and SiO 3 2− or PO 4 3− for Sb(V). X-ray photoelectron spectroscopic investigation revealed that high valence Mn(IV) was mainly responsible for the oxidation transformation of the highly toxic Sb(III) into less toxic Sb(V), while the FeO x content played major role for the adsorption of Sb(V). The generated inner-sphere Fe O Sb complex between Fe-OH groups and Sb(III/V) dominantly contributed to the removal of Sb(III/V). Overall, mesoporous structure, magnetic separation ability, excellent adsorption performance together with exceptional regeneration properties demonstrated the great potential of MMFMs for Sb(III/V) remediation.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Cleaner Production
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2021
·
IF 9.297
Jingyun Zhao,Zexu Chi,Heng Dong,Changfu Sun,Han Yu,Hongbing Yu
This study explored the depth treatment of desphenly chloridazon (DPC) wastewater by a novel synergetic dual-electrodes electrocatalytic (SDEs) system which consisted of Ni–Sb–SnO 2 /Ti anode (NSSTA) and PEDOT/PSS-CNTs modified activated carbon air diffusion cathode (PP-CNTs AC ADC). NSSTA exhibited an enhanced capability to produce reactive oxygen species (·OH and O 3 ), its O 3 production increased to 6.54 mg/L. PP-CNTs AC ADC was observed to have improved activity of catalyzing oxygen reduction reaction (ORR) with 648.23 mg/L H 2 O 2 generated. Owing to the synergetic effect of O 3 and H 2 O 2 , additional ·OH was obtained in SDEs system through the electro-peroxone reaction. Compared with the single-electrode electrocatalytic (SE) systems, the SDEs system showed superior pesticide degradation performance , higher mineralization current efficiency (MCE) and lower energy consumption (EC). In the SDEs system, the optimal 91.7% of DPC removal efficiency and 90.7% of DPC mineralization efficiency were obtained within 150 min by electrocatalytic oxidation of 17.5 ppm and 25 ppm pesticide wastewater at the current density of 11.94 mA/cm 2 , respectively. The treated water showed reduced acute toxicity than that of the raw wastewater, which suggested that the SDEs system is a promising technology for depth treatment of the pesticide industry effluent with simultaneous decontamination and detoxification realized.
研究领域:
环境工程
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水处理
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电化学
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废水处理
✓ 已验证
产品关联
DOI
高影响因子
BIORESOURCE TECHNOLOGY
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2021
·
IF 9.642
Liping Zhang,Yingbo Dong,Junfei Liu,Chenjing Liu,Wei Liu,Hai Lin
Iron-biochar is an efficient adsorbent for contaminants, whereas the role of prepared temperature on removal of antimony (Sb) is unacquainted. In this study, the iron-biochar composites (FBC) were fabricated by co-pyrolysis at 500°C and 800°C and applied to remove antimonite (Sb(III)) and antimonate (Sb(V)) in aqueous. The results showed Fe 3 O 4 was loaded on biochar prepared at 500°C (FBC500), while FeOOH with zero-valent iron (ZVI) was formed on biochar pyrolyzed at 800°C (FBC800). However, FBC500 showed the maximum absorbance for Sb(V) (30.47 mg/g), and FBC800 had optimal removal efficiency for Sb(III) (52.30 mg/g). The sorption of Sb(III) and Sb(V) on FBC was multilayer heterogeneous chemisorption (complexation and ligand exchange). Sb(III) was oxidized to Sb(V) with less toxicity during the corrosion of ZVI on FBC800, leading to the co-precipitation of Sb 2 O 5 . The electrostatic interaction affected the adsorption of Sb(V) on FBC500 and FBC800. The FBC800 showed superior reusability and resistance than FBC500.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2023
·
IF 4.5
Baoxiang Huang,Hongying Hou,Xiaohua Yu,Jian Lan,Bin Liu,Songlin Tan,Xianxi Liu
Inorganic/organic composite solid electrolytes are receiving the ever-increasing attention due to high safety and flexibility, however, inferior organic/inorganic interface compatibility also leads to the serious agglomeration of ceramic particles and severe blockage of Li + transport. Grafting amphoteric sulfonate betaine (SB) onto the surfaces of inorganic/organic components could act as the “wielding flux” and the ion-conductive interface layer, thus resulting in a homogeneous dispersion of the inorganic components, high interface compatibility and ionic conductivity. Herein, a series of composite solid electrolytes were prepared by scraping method, in which SB-modified PVDF (SB-PVDF) acted as the ion-conductive polymer matrix and combined with SB-modified Li 7 La 3 Zr 2 O 12 (SB-LLZO) with the different contents (0%, 10%, 20%, 30% and 40%) and 20% bis(trifluoromethane) sulphonyl lithium (LiTFSI). The resultant composites were marked as 0 % SB-LLZO/SB-PVDF/LiTFSI, 10 %SB-LLZO/SB-PVDF/LiTFSI, 20 %SB-LLZO/SB-PVDF/LiTFSI, 30 %SB-LLZO/SB-PVDF/LiTFSI and 40 %SB-LLZO/SB-PVDF/LiTFSI, respectively. Desirably, 30 %SB-LLZO/SB-PVDF/LiTFSI exhibited high ionic conductivity of 1.95 × 10 -4 S/cm, high Li + transference number (t Li + ) of 0.71 and wide electrochemical stability window of 5.31 V. Furthermore, the corresponding Li//30 %SB-LLZO/SB-PVDF/LiTFSI//LiFePO 4 cell delivered the reversible discharge capacity of 136.9 mAh/g and capacity retention of 95.1% after 200 cycles at 1.0 C. Seemingly, such a double-surface-modification structural design of the composite solid electrolyte showed the promising potential for solid state lithium ion batteries.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Hongtao Liu,Chong Chen,Yucheng Liu,Haoran Sun,Xu Huang,Zhijing Wang,Lizhang Wang
Electrochemical oxidation (EO) has emerged as a promising technology for eliminating recalcitrant organic pollutants from wastewater, yet its industrial implementation is constrained by the intrinsic limitations of conventional anodes, including sluggish charge transfer kinetics, rapid passivation, and excessive energy consumption. The simultaneous resolution of these drawbacks at low cost remains challenging. Herein, we engineered high-efficiency and stable CoNi-Sb-SnO 2 /enhanced TiO 2 nanotube arrays (ETNA) anode through a novel dual-strategy cobalt doping. Cobalt-triggered electron shuttling and ETNA interlayer optimization synergistically enhances the electrode’s electrocatalytic activity, conductivity, and stability. Experimental results reveal that Co dopants create electron-deficient centers to enrich charge density on adjacent Sn/Sb sites, synergizing with Ni-mediated O 3 production to enable ultrafast hydroxyl radical (·OH) yield (93.9 % tetracycline removal in 30 min) across a broad pH range. Crucially, the cobalt-bridged ETNA interlayer, with enriched oxygen vacancy and reconstructed anode surface, significantly reduces charge transfer resistance by 62.2 % and suppresses substrate corrosion, extending the anode lifespan to 15.7-fold while saving 54.8 % energy consumption. Density functional theory (DFT) calculations further corroborate that Co doping declines the d-band center, weakening oxygen intermediate adsorption and facilitating ·OH desorption. This work establishes a paradigm for achieving comprehensive electrode performance enhancement through targeted electronic structure engineering, enabling the development of cost-effective and durable anodes with direct applicability to low-concentration organic wastewater treatment.
研究领域:
环境科学
·
电化学
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材料科学
·
水处理技术
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纳米技术
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）