JOURNAL OF NANOBIOTECHNOLOGY
·
2025
·Vol. 23
·期 1
·1-18
·
IF 12.6
Chen Mengxia,Liu Ting,Wang Xiaonan,Gao Lizeng,Cheng Yunqing,Jiang Jing,Zhang Jinhua
Wound healing requires coordinated progression through multiple programmed phases including hemostasis, infection control, inflammatory resolution, proliferation, and tissue remodeling. Many nanomaterials have shown great potential to promote wound healing, however, most of them only address partial aspects of these processes, making a recovery hard with adequate effects. In this study, we prepared a complex of nano-iron sulfide integrated with erythrocyte-templated nanozyme (ETN) (ETN@Fe 7 S 8 ) for comprehensive treatment of wounds. Firstly, ETN served as a mediator to confine iron sulfide to form Fe 7 S 8 nanocomposite in a solvothermal reaction. Secondly, the ETN@Fe 7 S 8 demonstrated bactericidal effects against methicillin-resistant Staphylococcus aureus (MRSA) by releasing ferrous iron and polysulfide to induce ferroptosis-like cell death. Thirdly, ferrous iron along with polysulfide exerted anti-inflammatory effects by inhibiting the activation of the NF-κB signaling pathway, while the polysulfide also contributed to angiogenesis by promoting the activation of vascular endothelial growth factor A (VEGFA), initiated phosphorylation-mediated activation of the PI3K/AKT signaling pathway, a master regulatory cascade governing endothelial cell survival, migration, and angiogenesis. When employed for wound, ETN@Fe 7 S 8 showed the ability to prevent infection, reduce inflammation, promote angiogenesis, enhance cell proliferation, and remodel keratinocytes. Along with the hemostatic effect, ETN@Fe 7 S 8 thus performed comprehensive effects for wound healing in the whole recovery stages. Therefore, our findings provide a multifunctional candidate of ETN and nano-iron sulfide complex which is capable of regulating and promoting wound healing. Graphical
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高影响因子
WATER AIR AND SOIL POLLUTION
·
2025
·Vol. 237
·期 2
·51
·
IF 3
Hu Huixiang,Zhang Yixing,Li Yun,Xu Zhongqing,Zheng Weinan,Chen Hao,Tang Xuan
In recent years, antibiotics have been widely found in different types of water bodies, and these residues pose a serious threat to ecosystems and human health. Among the treatment methods for degrading antibiotics, advanced oxidation processes (AOPs) based on persulfate activation have received extensive attention and application due to their excellent degradation performance. In this study, the flower-like Fe 7 S 8 @Mn 3 O 4 catalyst material with agglomerated small particles attached to the surface was prepared by hydrothermal method to activate persulfate (PMS) to remove tetracycline. The results showed that the degradation rate of TC could reach 91% in 60 min when TC was 25 mg/L, catalyst dosage was 0.2 g/L and PMS was 0.3 g/L. The pH range was wide, and the degradation rate increased with the increase of temperature. HCO 3 − and H 2 PO 4− have a certain inhibitory effect on the catalytic reaction. Cl − , SO 4 2− and NO 3 − have little impact on the reaction system, and the catalytic material has strong applicability to the environment. The catalytic material has good reusability. Free radical quenching experiments showed that SO4· − , ·OH, 1 O 2 , O 2 · − all played a role. It was confirmed by EPR experiments that ·OH and SO4· − existed in the reaction system. The degradation pathways mainly include demethylation, deamidation, dehydroxylation, hydroxylation, ring-opening oxidation, etc.
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CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Yixian Wu,Yilin Yang,Yaxin Li,Chenxu Zhang,Yanan Wang,Hongwei Tian
Nanoarchitecture materials are widely investigated to enhance hydrogen evolution reaction (HER) performance. However, it is beset with difficulties to obtain nanomaterials at industrial-scale in comparison with bulk materials. Herein, bulk electrocatalyst Fe 4.5 Ni 4.5 S 8 /Fe 7 S 8 is prepared using flotation method and alkali cleaning from natural nickel ore. Sulfur vacancies and electron interaction between Fe 7 S 8 and Fe 4.5 Ni 4.5 S 8 may efficiently reduce hydrogen adsorption energy's absolute value, thus significantly improving hydrogen production efficiency. Hybrid catalyst requires ultralow overpotential of 48 mV at 10 mA cm −2 for HER in 0.5 M H 2 SO 4 and exhibits high stability (maintaining an almost constant overpotential after 20,000 cyclic voltammetry sweeps). Therefore, it can be affirmed that it demonstrates promising industrial application as an electrocatalyst towards HER.
研究领域:
材料科学
·
电化学
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高影响因子
MICROCHEMICAL JOURNAL
·
2023
·
IF 4.8
Shangying Qin,Li Huang,Dan Li,Zhongwei Lin,Chuang Wen,Yilin Wang
Fe 7 S 8 nanosheets (Fe 7 S 8 NSs) was prepared from ferrous sulfate and thiourea, showing peroxidase-like activity and enabling the oxidation of o-phenylenediamine (OPD) in the presence of H 2 O 2 to produce 2,3-diaminophenol (DAP) with strong absorption and fluorescence peaks at 450 and 560 nm, respectively. Furthermore, both the level of absorbance at 450 nm ( A 450 ) and the intensity of fluorescence at 560 nm ( F 560 ) depended on the concentration of H 2 O 2 . As a result, a dual response (colorimetry and fluorescence) method for the assay of H 2 O 2 was established. Due to the fact that H 2 O 2 can be produced from glucose oxidase catalyzed glucose oxidation, A 450 and F 560 were further used for indirect determination of glucose. The results indicated that the absorbance and fluorescence responses were closely related to glucose concentration in the range of 1.0–100 μM and 1.0––70 μM with the detection limit of 0.83 and 0.52 μM, respectively. To verify its practicality, the method has been used for determining glucose in human serum samples with recoveries ranging from 92.2 to 106.2 %, suggesting its promising potential applications.
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Materials
·
2026
·Vol. 19
·期 4
·692
·
IF 3.7
Haopo Li,Ting Feng,Fang Wang,Yuhe Wang,Hao Song,Chengxin Zhang,Fengzhang Ren
Heterointerface engineering, especially the construction of heterointerfaces based on two highly active components, is an effective strategy to enhance the sodium storage capacity and accelerate the reaction kinetics of transition metal chalcogenide anodes. Herein, a series of SA-CoFe-S composites composed of two highly active metal sulfides, Co3S4and Fe7S8, were fabricated through in situ chelation effects coupled with a one-step sulfurization strategy. The optimized SA-CoFe(1:4)-S is composed of fine nanoparticles encapsulated by uniformly distributed S-doped carbon. This unique carbon confinement effect and nano-sized active particles can alleviate volume expansion, shorten the ion diffusion distance, and accelerate electron transfer. In addition, the strong electric-field effect and rich heterointerfaces generated by the heterostructure provide more active sites for sodium storage and accelerate the sodium storage kinetics. The relevant theoretical calculation outcomes further confirm that the heterointerfaces formed between Co3S4and Fe7S8can enhance the adsorption energy toward sodium ions and boost the electrical conductivity of the composite material. As an anode material for sodium-ion batteries, the initial discharge/charge capacities were 723/1010 mAh·g−1, exhibited at 1 A·g−1, and the coulombic efficiency (CE) corresponding to this current density was measured to be 71.6%. Even after 800 cycles, the reversible discharge specific capacity of the electrode can still reach 806 mAh·g−1at 1 A·g−1. Additionally, at an elevated current density of 3 A·g−1, the electrode sustains stable cycling over 500 cycles, with its discharge capacity kept at 258 mAh·g−1after the long-term cycling test.
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高影响因子
Journal of Energy Chemistry
·
2020
·
IF 7.216
Chengzhi Zhang,Donghai Wei,Fei Wang,Guanhua Zhang,Junfei Duan,Fei Han,Huigao Duan,Jinshui Liu
Nanostructured iron sulfides are regarded as a potential anode material for sodium-ion batteries in virtue of the rich natural abundance and remarkable theoretical capacity. However, poor rate performance and inferior cycling stability caused by sluggish kinetics and volume swelling represent two main obstacles at present. The previous research mainly focuses on nanostructure design and/or hybridizing with conductive materials. Further boosting the property by adjusting Fe/S atomic ratio in iron sulfides is rarely reported. In this work, Fe 7 S 8 and FeS 2 encapsulated in N-doped hollow carbon fibers (NHCFs/Fe 7 S 8 and NHCFs/FeS 2 ) are constructed by a combined chemical bath deposition and subsequent sulfidation treatment. The well-designed NHCFs/Fe 7 S 8 electrode displays a remarkable capacity of 517 mAh g −1 at 2 A g −1 after 1000 cycles and a superb rate capability with a capability of 444 mAh g −1 even at 20 A g −1 in ether-based electrolyte. Additionally, the rate capability of NHCFs/Fe 7 S 8 is superior to that of the contrast NHCFs/FeS 2 electrode and also much better than the values of the most previously reported iron sulfide-based anodes. The in-depth mechanism explanation is explained by further experimental analysis and theoretical calculation, revealing Fe 7 S 8 displays improved intrinsic electronic conductivity and faster Na + diffusion coefficient as well as higher reaction reversibility.
研究领域:
材料科学
·
电化学
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高影响因子
Journal of Environmental Chemical Engineering
·
2023
·
IF 7.7
Lide Jin,Ghebretensae Aron Kifle,Yuan Huang,Chunyang Li,Haibo Chen,Minghui Xiang,Chen Wang,Jin Zhang,Zhiyuan Yang,Siyang Li,Zhen Lu,Hui Li
Pyrrhotite (Fe 7 S 8 ) is a natural mineral with multiple valence states of iron and an efficient peroxydisulfate (PS) activator. However, the activation mechanism of PS and the performance of 2,4,6-trichlorophenol (TCP) removal by the Fe 7 S 8 /PS system are not clear. Herein, the hexagonal Fe 7 S 8 sheets were fabricated using the facile one-step solvothermal method, which could enhance PS activation and TCP degradation. The Fe 7 S 8 /PS system removed 94.3% of the TCP within 60 min with an apparent rate constant of 0.052 ± 0.003 min −1 . The dissolution of Fe 7 S 8 during the Fe 7 S 8 /PS activation facilitated the regeneration of Fe 3+ /Fe 2+ redox cycles. Free radical species analysis confirmed the presence of sulfate radical (SO 4 •- ) and hydroxyl radical (•OH). The fundamental involvement of the free radicals was observed in two stages. The first stage (0–5 min) was dominated by the contribution of •OH, whereas, in 2nd stage (5–60 min), the contribution of SO 4 •- exceeded that of •OH. Toxicity prediction studies revealed that degradation intermediates had lower toxicity than TCP. In the reaction column filled with 15 g of quartz sand (QS), the removal efficiency on TCP decreased from 100% to 0% over a period of 30 min to 80 h. In addition, after 155 h, the TCP removal efficiencies of column experiments loaded with 15, 18, and 20 g of QS and Fe 7 S 8 were 33.2%, 44.6%, and 50.2%, respectively. These findings suggested the Fe 7 S 8 /PS system showed high potential for removing TCP from groundwater.
研究领域:
环境科学
·
化学
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高影响因子
ANALYTICA CHIMICA ACTA
·
2026
·
IF 6.1
Yanyan Li,Liangchen Li,Zhengming Zhou,Xiaojie Xiong,Liying Huang,Jingjing Gu,Chen Gao,Tingting Liu,Xuedong Wang,Guozhong Dong
Background Emerging pollutants such as enrofloxacin (ENR) pose a serious threat to the ecosystem and public health due to their resistance to degradation and tendency to accumulate in the environment. Although existing antibiotic detection techniques have considerable application value, they suffer from high costs, complex operation procedures, or insufficient sensitivity. Therefore, there is an urgent need to develop a new detection method that is simple, rapid, low-cost, and environmentally friendly to efficiently monitor antibiotic pollution in environmental water bodies and safeguard public health. Results In this work, inspired by the superior catalytic activity of three-dimensional (3D) composite nanomaterials, we rationally designed and synthesized FeMoO 4 /Fe 7 S 8 nanosheet flower composites (3D FeMoO 4 /Fe 7 S 8 NSFs) as a novel peroxidase-mimicking nanozyme for the sensitive colorimetric detection of ENR. The as-synthesized NSFs exhibit outstanding intrinsic peroxidase-like activity, enabling their direct integration into a colorimetric sensing platform. Critically, the synergistic redox coupling between Mo 6+ /Mo 4+ and the Fe 2+ /Fe 3+ couple facilitates rapid electron transfer, thereby promoting efficient activation of peroxymonosulfate (PMS) to generate reactive oxygen species—including hydroxyl radicals (·OH), sulfate radicals (·SO 4 − ), singlet oxygen ( 1 O 2 ), and superoxide radicals (·O 2 − ), which collectively drive the oxidation of chromogenic substrates without requiring external enzymatic or chemical initiators. This mechanism underpins a robust, single-step colorimetric assay that overcomes key limitations of conventional methods, such as stringent temperature control, prolonged reaction times, and narrow pH operational windows, thus enabling rapid, reliable ENR quantification. The optimized sensing platform delivers a wide linear range (0.500–70.0 μM), a low detection limit (LOD) of 0.150 μM (S/N = 3), and a total assay time of only 5 min. Significance This system breaks through the limitations of traditional methods in terms of temperature, time, and pH conditions, and successfully generates free radicals and non-free radical active substances by activating PMS, thereby achieving rapid and efficient detection of antibiotics. This innovation provides a highly promising new strategy for the identification of fluoroquinolone (FQs) antibiotics and shows broad application prospects in the field of environmental pollutant detection and monitoring.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Wanlu Hua,Yifei Pu,Jie Xu,Baichuan Zhuang,Jing Zhang,Jifei Zhuo,Xiaoli Xie,Xin Tian,Xiangnan Chen,Tengfei Qu,Guo Li,Guangjun Gou
Heterointerface engineering has been widely proven effective for designing composite materials with high-efficiency microwave absorption (MA) capabilities. However, challenges persist in regulating the interface structures of MA materials at the microscale and nanoscale. In this study, a novel N/S-codoped multi-interfacial porous carbon composite (Fe 7 S 8 /Fe 2 S/Fe 3 C@C) is successfully prepared by chemical foaming and vulcanization. Concretely, when the carbonization and vulcanization temperature were both 600 °C, the mass ratio of carbonized sample to sulfur (carbon: sulfur) was 1:2 (PF-2), which exhibited exceptional electromagnetic wave attenuation properties. Notably, the composite achieved a minimum reflection loss ( RL min ) of −48.83 dB at 1.85 mm thickness, and an effective absorption bandwidth (EAB) value reaching 6 GHz (12–18 GHz) at 2 mm, while the proportion of paraffin wax was only 20 wt%. The significantly improved MA performance primarily originated from the synergistic effects between dielectric/magnetic heterostructures and heterointerfaces. In addition, PF-2 exhibits excellent antibacterial properties, with antibacterial rates against Escherichia coli and Staphylococcus aureus both exceeding 99.999 % under no light and 808 nm light conditions. Overall, this research provides a pathway through heterointerface engineering for designing a new generation of multifunctional electromagnetic wave absorbing materials.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 15
·1-11
·
IF 2.8
Zhang Lichen,Lin Jie,Wang Xintong,Zhu Xinxin,Ding Yihong,Jin Huile,Zeng Tianbiao
Tin-based sulfides, such as SnS 2 , have garnered attention as lithium-ion anode materials due to their layer structure and high conductivity capacity. However, during the lithium alloying/dealloying cycles, SnS 2 material exhibits a rapid capacity decay due to the volume expansion, which hinders the application of SnS 2 . In this study, a heterostructure composite material anchored on exfoliated graphite, designated as nano SnS 2 S 3 /Sn 3 S 4 /FeS/Fe 7 S 8 anchored on 15.0 wt% exfoliated graphite (FSS/G-15%), was synthesized by heating a mixture of inexpensive reducing agent Fe powder and SnS 2 powder, followed by ball milling with 15.0 wt% commercial graphite. Experimental results demonstrated that FSS/G-15% had exhibited optimal overall Li + storage performance, achieving approximately 1306.7, 1199.2, 1033.1, 882.3, 707.3, 507, 366.3, 255.6, and 203.5 mA hg −1 at current densities of 0.1, 0.2, 0.5, 1, 2, 4, 6, 8, and 10 Ag −1 , respectively, surpassing the majority of SnS 2 -based anode materials. The simplicity and efficiency of the synthetic method may have potential implications in various fields in the future.
研究领域:
材料科学
·
能源存储技术
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Yong-Qi Ye,Si-Heng Liu,Wen-Qi Lv,Ding-Rong Deng,Gui-Fang Li,Ye Zeng,Jia-Xi Song,Hai Huang,Shuang-Lin Cai,Yu-Han Yuan,Xiao-Hong Fan,Jian-Chun Weng,Qi-Hui Wu
Iron-based sulfides are promising anode materials for sodium-ion batteries (SIBs) due to high theoretical capacities, but their short cycle life—caused by volume expansion and polysulfide shuttle effect—limits wide-temperature applications. To solve this, a novel three-dimensional MFS@rGO composite anode was prepared via one-step solvothermal method followed by annealing sulfurization, composed of Mn-doped Fe 7 S 8 (MFS) embedded in nitrogen-doped reduced graphene oxide (N-doped rGO). Mn doping enlarges Fe 7 S 8 lattice spacing, reducing Na⁺ diffusion resistance to boost ionic conductivity and Na storage. DFT calculations confirm Mn increases Fermi-level electronic density, lowers Na⁺ migration energy barrier, and accelerates ion transport. N-doped rGO builds a stable conductive network and synergizes with Mn to suppress shuttle effect and alleviate volume expansion, enhancing structural stability. Benefiting from this synergy, MFS@rGO performs well at −40–60 °C: 282.71 mAh g −1 after cycling at −40 °C, 310 mAh g −1 over 500 cycles at −20 °C, 450 mAh g −1 over 1000 cycles (60 °C, 2 A g −1 ). At room temperature, it retains 407.09 mAh g −1 ; over 100 cycles (1 A g −1 ); even at 50 A g −1 , it maintains 206.14 mAh g −1 over 100,000 cycles with negligible degradation. It also works well in full cells, offering a strategy for high-performance SIBs under extreme conditions.
研究领域:
储能与转换
·
材料科学
·
电化学
·
纳米材料
·
电池技术
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Jinhuan Liang,Xiaoqi Wu,Jingwen Ma,Jin Huang,Jiaxin Wu,Rongrong Zhong,Zehua Zou,Yanjun Hou,Qingxiang Wang,Xuan Zheng
Constructing efficient and durable bifunctional electrocatalysts for overall water splitting (OWS) under industrial current densities remains a critical challenge. Herein, we report a crystalline–amorphous (C–A) Schottky junction catalyst, NiFe(OH)x/Fe7S8/IF, featuring a nanosphere-assembled hierarchical architecture synthesized via a two-step in situ growth strategy. The hybrid integration of conductive Fe7S8 nanorods and amorphous NiFe(OH)x nanosheets generates a robust C–A heterointerface. Mechanistic investigations reveal that the built-in electric field (BIEF) at the Schottky interface not only narrows the band gap of NiFe (oxy)hydroxide to improve charge transport, but also modulates the adsorption behavior of reaction intermediates by tuning the d/p-band center proximity (Δεd–p) of surface reaction sites. First-principles calculations demonstrate that Δεd–p serves as a reliable electronic descriptor for optimizing HER and OER pathways of NiFe (oxy)hydroxide-Fe7S8 heterointerface via balancing H adsorption and weakening OOH binding, respectively. Benefiting from these unique electronic regulations, the resulting catalyst exhibits exceptional bifunctional electrocatalytic performance, requiring overpotentials of only 359 mV for the hydrogen evolution reaction (HER) at 1 A cm–2 and 380 mV for the oxygen evolution reaction (OER) at 500 mA cm–2. When integrated into a two-electrode electrolyzer, the NiFe(OH)x/Fe7S8/IF couple achieves a low cell voltage of 1.42 V at 10 mA cm–2 and sustains 1 A cm–2 over 300 h with minimal current density decay. This work sheds light on a generalizable interfacial design strategy and introduces Δεd–p as a conceptual framework for the rational design of cost-effective, high-performance water-splitting electrocatalysts.
研究领域:
电催化
·
材料科学
·
能量转换
·
纳米材料
·
可再生能源
·
界面工程
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高影响因子
危险品化学品经营许可证（带存储）