Applied Materials Today
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2025
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IF 6.9
Zerong Wang,Ge Yan,Yi Ning,Xiaoli Zhou,Xin Lu,Qianqian Zhou,Qiwei Tian
Transarterial embolization (TAE) is a primary clinical treatment for hepatocellular carcinoma (HCC); however, its therapeutic efficacy is limited by its functional constraints. To enhance treatment outcomes, this study aims to develop a multifunctional embolic microsphere, LUT-Fe@PVA, for the combined treatment of HCC. This approach leverages a synergistic strategy that integrates TAE, sonodynamic therapy (SDT), and chemodynamic therapy (CDT) to improve the therapeutic efficacy. The LUT-Fe@PVA microspheres were synthesized via a microemulsion crosslinking method and loaded with luteolin-iron complexes to enable ultrasound-triggered reactive oxygen species (ROS) generation and Fenton reaction for enhanced tumor destruction. In vitro results demonstrated that the combination therapy significantly kills the tumor cells. In vivo, 18 F-FDG microPET/CT imaging revealed significantly reduced uptake values, while histological analysis confirmed extensive tumor cell necrosis and apoptosis in the combined therapy group. This study presents a promising multifunctional approach for HCC treatment by integrating embolization, SDT, and CDT, offering a novel strategy for effective and selective tumor treatment with minimal side effects.
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Materials Today Communications
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2025
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IF 4.5
Nanqing Zhang,Xianhua Bian,Zhenglong Zhu,Xin Huang,Ping-an Yang
To effectively absorb electromagnetic waves and reduce the impact of electromagnetic radiation on the health of residents and the normal operation of electronic devices, core-shell nanocomposite fibers (Fe NWs@SiO 2 @Ag) were successfully prepared by the liquid-phase hydrolysis method. The microwave absorption properties of core-shell nanocomposite nanofibers with different ratios were tested and analyzed using the coaxial method. The results show that the sample with a molar ratio of Fe:SiO 2 :Ag of 1:0.1:1 has the best comprehensive performance. This sample exhibits excellent microwave absorbing performance. When the mass filling fraction is 25 wt%, its minimum reflection loss (RL min ) can reach −61.55 dB, and the effective absorption bandwidth (EAB) can reach 3.52 GHz. The excellent microwave absorbing performance can be attributed to the interfacial polarization effect of the core-shell nanocomposite structure, the magnetic loss and conduction loss of each layer of materials, and the small-scale effect caused by the one-dimensional structure. This study can provide a methodological reference for the preparation of high-performance absorbing materials.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Shaoyan Zhang,Wen Zhang,Xinyao Zhao,Xin Li,Jian Wang,Ji Li,Yanqing Liu,Xueying Cheng,Renquan Guan,Junkai Zhang
This study reports the synthesis of MIL–88B(Fe)/Bi 3 O 4 Br, an efficient Z -scheme heterojunction photocatalyst for metronidazole (MNZ) degradation. The composite achieved a degradation efficiency of 95.2 % under visible light irradiation, outperforming the single-component catalysts (MIL–88B(Fe): 39.0 %, Bi 3 O 4 Br: 71.5 %). Photocatalytic treatment reduced biotoxicity, indicating its potential for use and environmental safety. The degradation process of MNZ was revealed by integrating LC–MS data with Fukui function analysis. Photoelectrochemical findings indicate that MIL–88B(Fe) enhanced efficiency, facilitated charge separation, and augmented the spectral response of Bi 3 O 4 Br. The Z–Scheme charge transfer and the function of the built–in electric field were validated by in situ XPS. DFT calculations revealed synergistic effects in the composite system, enhancing the adsorption and photocatalytic properties for MNZ. This study proposed a thorough degradation process that underpinned the development of effective photocatalysts.
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Journal of Environmental Chemical Engineering
·
2025
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IF 7.2
Huaqi Zhang,Siyi Chen,Zhenhao Wang,Chaoran Fan,Tianming Li,Na Yan,Yian Zheng
Semi-coke (SC), a solid waste generated from the dry distillation of oil shale, is rich in organic matter, classifying it as a functional carbon-based material. Combining the progressive advantages of functionalized carbon-based materials in advanced oxidation technology, this study prepared Fe-N co-doped semi-coke (Fe-N-SC) through a facile one-step pyrolysis of SC pre-impregnated with potassium ferricyanide. Under visible light (VIS) irradiation, Fe-N-SC was able to activate periodate (PI) to establish an Fe-N-SC/PI/VIS system for degrading norfloxacin (NOR). The results showed that this system achieved 99.5%-NOR removal, with a mineralization degree of up to 68.6%- within 30 min. Furthermore, Fe-N-SC exhibited stable performance over a wide pH range (3−9) and maintained high NOR removal efficiency in real water matrices, indicating its robustness and practical applicability. Electron paramagnetic resonance and free radical quenching experiments revealed that h + and ·OH were the primary species responsible for NOR degradation in Fe-N-SC/PI/VIS system. The proposed mechanism involved reactive oxygen species-driven oxidative cleavage of piperazine ring in NOR, leading to its stepwise breakdown and mineralization into harmless end-products. During the degradation process, no toxic intermediates were detected, highlighting the environmental safety of Fe-N-SC/PI/VIS system for sustainable and highly effective removal of antibiotics from aquatic environment.
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COMPOSITES PART B-ENGINEERING
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2025
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IF 14.2
Chunmiao Liu,Yurun Feng,Haibin Sun,Qiangqiang Hu,Hui Xiao,Xue Guo,Huaiqing Zhang
The increasingly complex electromagnetic environment and escalating stealth technology requirements pose unprecedented challenges to multifunctional electromagnetic wave (EMW) absorbing materials. While significant progress has been made, existing SiBCN material systems still struggle to simultaneously achieve broadband absorption and strong attenuation. In response to this demand, we propose a Fe-Co-Ni ternary co-doping strategy from the perspective of multiple doping and magnetic medium coupling. By precisely controlling the content of magnetic elements, the synergistic effect between magnetic loss and dielectric loss is realized. The experimental results show that the minimum reflection loss (RL min ) of the optimized SiBCN/Fe-Co-Ni fibers reach -53.19 dB, and a broadband absorption of 5.36 GHz is achieved at a thickness of 1.98 mm. More importantly, the material maintains excellent stealth performance across a wide range of incident angles. Capitalizing on these outstanding properties, we have successfully designed a low radar cross-section (RCS) stealth antenna. The antenna exhibits a 27.5 dBsm RCS reduction at 9.24 GHz. This work not only clarifies the synergistic mechanism of multiple magnetic doping to regulate electromagnetic parameters, but also provides new ideas for the development of new generation of smart stealth materials and devices.
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ACS Applied Nano Materials
·
2024
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IF 5.3
Jie Huang,Xue Fan,Fei Yan,Jiyang Liu
Herein, we develop a simple electrochemical sensor based on the confinement effect of vertically ordered mesoporous silica film (VMSF) and the o-phenanthroline (Phen) chelating agent for ultrasensitive determination of ferrous ions (Fe2+). Fe(Phen)32+ obtained from the chelation between Fe2+ and Phen, shows higher electrochemical activity and larger geometric dimensions compared with free Fe2+, which could be effectively preconcentrated into the inner nanochannels of VMSF through spatial and electrostatic confinement effects. Differing from the conventional anodic stripping voltammetry, Fe(Phen)32+ could be enriched by convenient mechanical stirring and further detected by VMSF-modified indium tin oxide (VMSF/ITO), achieving an outstanding detection performance in terms of a linear range (1.0 nM–13.0 μM) and a limit of detection (LOD, 0.66 nM). Moreover, the established electrochemical sensor can accurately measure total iron and distinguish between different valence states (Fe2+ or Fe3+) with the help of reducing agents. Thanks to the outstanding antifouling ability of VMSF, the sensing platform consisting of VMSF/ITO and Phen chelating agent enables the precise determination of Fe2+ in complex real samples including tap water, pond water, FeSO4 tablets, and even colored samples, which can avoid the tedious sample pretreatment process and be applied in a wide range of scenarios.
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Nature Communications
·
2025
·Vol. 16
·期 1
·1-11
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IF 15.7
He Xun,Yao Yongchao,Zhang Min,Zhou Yilei,Zhang Limei,Ren Yuchun,Dong Kai,Tang Hong,Nan Jue,Zhou Xingli,Luo Han,Ying Binwu,Yu Qi,Luo Fengming,Tang Bo,Sun Xuping
Seawater electrolysis driven by offshore renewable energy is a promising avenue for large-scale hydrogen production but faces challenges in designing robust anodes that suppress surface chlorine reactions and corrosion at high current densities. Here we report a strategy by selectively docking PW 12 -polyoxometalate (PW 12 -POM) onto Fe sites of CoFe hydroxide anode to modulate the electronic structure of adjacent Co active centers and regulate Cl⁻/OH⁻ adsorption for efficient alkaline seawater oxidation. Our CoFe-based anode achieves low overpotentials, high catalytic selectivity, and notable durability, with continuous operation at 1 A cm⁻² for over 1300 hours and at 2 A cm⁻² more than 600 hours. Theoretical calculations and ex situ/in situ analyses reveal that PW 12 -POM coordination at Fe sites stabilizes Fe, suppresses its leaching, modulates Co acidity, promotes OH⁻ adsorption, and protects metal sites from Cl⁻ corrosion.
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Small
·
2025
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IF 12.1
Haixin Sun,Xupeng Qin,Yuhao Zhang,Yanzhi Xu,Yaling Jiang,Fengwen Pan,Qinghua Liu
Coordination reconstruction of atomically dispersed active sites in electrocatalytic reactions is expected to enhance the catalytic activity, but achieving this goal remains challenging. Herein, a single-atom‒nanoparticle synergistic catalyst composed of pyridine Fe─N sites and Ni nanoparticles (NPs) encapsulated in nitrogen-doped carbon nanotubes is presented, in which the Ni NPs can reconstruct the Fe─N─C coordination structure from Fe─N 4 to Fe─N 2 through the carbon nanotube structure during the CO 2 electroreduction reaction. The catalyst exhibites a low onset potential of −0.12 V in an alkaline flow cell, with a high Faradaic efficiency for CO (FE CO ) greater than 97% over a wide potential range of −0.4–−1.2 V and a maximum FE CO of 98.7%. In situ X-ray absorption spectroscopy and infrared characterization results demonstrate that the reduction in the Fe─N coordination number during the reaction process promotes the protonation of CO 2 to form the * COOH intermediate and thereby significantly improves the CO 2 electroreduction performance.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2019
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IF 6.361
Jie Cao,Jin Huang,Huaping Dong,Jianfa Li,Jianxin Shou,Yimin Li
Surfactants are easily accumulated in groundwater, sediment, and aquifers, due to their excessive use in household, industrial, and agricultural processes. These residual surfactants are expected to influence the transformation and fate of organic contaminants by Fe(II) sorbed on iron oxides in anaerobic environments. Here, we investigated the effects of various surfactants including nonionic TX-100, anionic SDBS and bio-surfactant saponin on the removal of nitrobenzene (NB) by Fe(II) sorbed on goethite (goethite/Fe(II)) through batch experiments. We also elucidated the mechanism behind the effects by XPS, XRD , and determination of the amounts of sorbed Fe(II) on goethite. The results showed that the presence of TX-100 improved NB removal from 77.2% in the absence of surfactant, to 93.8% within 6 h, and improved the removal rate by about 1.3 times. In contrast, the presence of SDBS decreased the removal efficiency to 45.5%, and the presence of saponin nearly inhibited the removal of NB completely. The removed NB was finally nearly reduced to aniline in the absence or presence of surfactants, except in the case of saponin. The amounts of sorbed Fe(II) listed in the sequence as goethite/Fe(II)+TX-100 > goethite/Fe(II) > goethite/Fe(II)+SDBS > goethite/Fe(II)+saponin, and this order negatively correlated with that in the redox potential of these systems. These results confirmed that the presence of surfactants influenced the sorption of Fe(II) on goethite and changed the reactivity of goethite/Fe(II) for NB removal. This finding will promote a clear understanding of the impact of coexisting surfactants on the transformation and fate of organic contaminants in real anaerobic environments.
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CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Zhenqiang Yu,Menglian Zhang,Rong Guo,Jinming Zeng,Zheng Xie,Yihao Xu,Yi Fang,Xiaopeng Qi,Zhe Lü,Huan Li
Designing and developing highly active and stable cathode materials is of great concern to large-scale commercial applications of solid oxide fuel cells (SOFCs). Herein, a series of perovskite oxides, La 0.5 Ba 0.5 Fe 1-x Zr x O 3-δ (LBFZ x O, x = 0∼0.075), are synthesized and systematically assessed. All LBFZ x O samples present cubic perovskite structure and possess better chemical compatibility with the SDC electrolyte. The introduction of Zirconium into the parent material yields lower thermal expansion coefficient and higher oxygen vacancy. Among all the components, La 0.5 Ba 0.5 Fe 0.95 Zr 0.05 O 3-δ achieves the lowest polarization resistant (0.076 Ω cm 2 ) and the highest power density (523 mWcm −2 ) at 800 °C, while rendering exceptional stability over a duration of 100 h. In addition, combining with the analyses of impedance and the distribution of relaxation times, the rate-determining steps for the entire oxygen reduction process are further clarified. The current research results highlight that La 0.5 Ba 0.5 Fe 0.95 Zr 0.05 O 3-δ is a viable cathode candidate for SOFCs.
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Advanced Materials Interfaces
·
2025
·
IF 4.4
Zhexin Pan,Yiming Zhu,Yihong Liu,Wei-Hsiang Huang,Yujie Cui,Yang Zhao,Menghao Yang,Hongfei Cheng,Nicolas Alonso-Vante,Jiwei Ma
The development of platinum group metal (PGM)-free catalysts is essential to advance the wide application of fuel cells. Single-atom Fe─N─C catalysts are one type of promising PGM-free catalysts that can replace the expensive Pt/C catalyst for the electrocatalytic oxygen reduction reaction. However, Fe─N─C catalysts still suffer from poor stability due to the inevitable Fenton reaction. In this work, a doping strategy is demonstrated to alter the electronic structure around the catalytic sites and significantly improve their catalytic activity. In particular, the phosphorous-doped Fe─N─C catalyst (P─Fe─N─C) achieves a half-wave potential of 0.885 V versus RHE in 0.1 m KOH and demonstrates excellent stability, with only a 7 mV decay in the half-wave potential after 10 000 cyclic voltammetry cycles, superior to that of boron-doped one (B─Fe─N─C). Density functional theory (DFT) calculations further confirm that heteroatom doping favors the ORR process, highlighting the potential of this catalyst for advanced energy applications.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
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IF 6.3
Dongju Liu,Kunlan Diao,Daohai Zhang,Yupeng Hu,Zhi Lei,Teng Zhou,Kaixiang Zou,Shuhao Qin
With the popularity of wireless communication technology, the problem of electromagnetic radiation and interference is highlighted, and the development of efficient electromagnetic shielding materials has become a research priority. In this study, firstly, polyvinyl alcohol/sodium alginate (PVA/SA) hydrogels were prepared by physical cross-linking method, and further, iron-based metal-organic frameworks (Fe-MOFs) were prepared by solvothermal synthesis method, and with reduced graphene oxide (RGO) as a conductive filler, and γ-aminopropyltriethoxysilane (KH550) as a cross-linking agent, were prepared by chemical cross-linking method. Modified polyvinyl alcohol/sodium alginate/iron based metal organic framework/reduced graphene oxide (PVA/SA/Fe-MOF/RGO-KH550) composite hydrogel. The results show that the composite hydrogel has a compressive stress of 20.13 MPa, a compressive strain of 83.28 %, and an electromagnetic shielding efficiency of 39.98 dB at a thickness of 3 mm, which reaches the mid-range and high-end level, and it can be applied to industrial control, small and medium-sized data centres, automotive electronics, and general medical devices with medium-high requirements. The excellent performance of the hydrogel comes from the conductive properties and interfacial polarisation effect of RGO, the dielectric loss of Fe-MOF, which work in synergy, and KH550 optimises the interfacial bonding between the filler and the substrate to form a denser crosslinked structure, which strengthens the mechanical properties and electromagnetic shielding effect. The hydrogel preparation process is simple and low-cost, which provides a reference for the design of high-performance electromagnetic shieldingmaterials and an effective solution to the problem of electromagnetic interference.
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