ACS Applied Materials & Interfaces
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2026
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IF 7.8
Yuke Zheng,Yidan He,Zhiqi Zhang,Jinglin Zhang,Tong Wang,Bo Wang,Tianying Wang,Xiaojuan Zhang
To suppress the ever-increasing challenge of electromagnetic radiation pollution and exploit lightweight wave absorbers, enormous attention has been focused on aerogels. Herein, a sequence of Fe3C/Fe/NC aerogels with variable dielectric/magnetic ratios has been successfully synthesized by redox reaction, freeze-drying, and high-temperature calcination. Benefiting from the dielectric-magnetic coupling loss, optimized impedance matching, and structural advantages, the Fe3C/Fe/NC-2/PVDF composite displays optimal microwave absorption performance with a minimum reflection loss (RLmin) value of −59.03 dB at 2.53 mm under an ultralow filler loading of 3 wt %. Meanwhile, the maximum effective absorption bandwidth (EAB) of Fe3C/Fe/NC-3/PVDF composite nearly covers the entire X-band at 2.92 mm. Moreover, the radar cross-section (RCS) simulation results and infrared thermal images respectivelly verify their application potential in radar wave attenuation and the infrared stealth domain. The specific wave absorption mechanism is mainly ascribed to dielectric loss, including conduction loss and polarization loss, magnetic loss containing eddy current loss and exchange resonance, as well as multiple reflections and scattering caused by the porous structure. This study can effectively decouple the impedance matching and microwave dissipating ability by dielectric/magnetic ratio modulation and microstructure design, which is of great significance for the development of lightweight and advanced wave absorbers.
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PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 24
·1879
·
IF 3.2
Yuan Haitao,Duan Yingnan,Zhou Qian,Feng Zhimin,Ren Shiyue,Li Weizun,Shen Zhurui
Widespread antibiotic contamination in aquatic environments has become a serious global concern, demanding efficient and sustainable treatment technologies. Fe-doped CeO 2 were synthesized via a simple impregnation method to efficiently activate peroxymonosulfate (PMS) under visible light irradiation for the degradation of TC. The introduction of Fe into the CeO 2 lattice effectively regulated the electronic structure and increased oxygen vacancy density, thereby enhancing charge separation and accelerating electron transfer to PMS for reactive oxygen species (ROS) generation. Under optimal conditions (0.4 mM PMS and 40 mg L −1 catalyst), the Light/2%Fe–CeO 2 /PMS system achieved a 98.2% TC removal within 45 min of LED irradiation, demonstrating superior oxidant utilization and stability across various water quality conditions and multiple tc antibiotics. Mechanistic investigations confirmed the coexistence of radical (·O 2 − , ·SO 4 − , ·OH) and non-radical ( 1 O 2 and direct electron transfer) pathways with strong synergistic effects. Density functional theory (DFT) calculations further revealed that Fe doping facilitates PMS activation and pollutant adsorption by promoting interfacial charge transfer and modulating the Ce 3+ /Ce 4+ redox cycle. This work provides new insights into the rational design of Fe-doped visible light-responsive catalysts for PMS-based advanced oxidation processes, offering a cost-effective and environmentally friendly strategy for antibiotic removal and sustainable wastewater treatment.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Liwei Ma,Heting Li,Shaonan Shan,Yanqing Qin,Xu Yang,Guoqiang Li,Guojie Zhang
Wet Fe(II)EDTA complexation is a promising technology for NO removal, but its practical application is severely hindered by O 2 -induced oxidation of Fe(II)EDTA and inefficient regeneration of Fe(II)EDTA–NO. Herein, an oxygen-vacancy-rich BiOCl/g-C 3 N 4 S-scheme heterojunction with interfacial Bi–O–C covalent bonds was constructed for oxygen-resistant photocatalytic–complexation denitrification. Structural characterizations and density functional theory calculations confirmed that Bi–O–C bonds served as atomic-level charge-transfer channels, strengthening interfacial coupling and promoting directional S-scheme charge separation. This configuration preserved strongly reductive electrons on g-C 3 N 4 for the reduction of Fe( III )EDTA and Fe(II)EDTA–NO, while retaining oxidative holes on BiOCl. Meanwhile, oxygen vacancies on BiOCl acted as preferential O 2 adsorption and activation sites, converting O 2 into ·O 2 − and thereby transforming O 2 from a competitive oxidant into an electron-buffering species that suppresses BiOCl photocorrosion and regulates interfacial redox cycling. The optimized 20BCN–Fe( II )EDTA system achieved an average NO removal efficiency of 88.92% under 14% O 2 and maintained above 80.02% efficiency after 30 cycles. Product analysis revealed a reduction-dominated NO conversion pathway, with NH 4 + and N 2 as the major reduced nitrogen products, a total reduced-product selectivity of 91.9%, and a nitrogen recovery of 94.4%. Kinetic analysis confirmed that NO absorption proceeded in a fast reaction regime enhanced by interfacial redox reactions. This work provides an atomic-level strategy for designing oxygen-resistant photocatalytic systems for wet denitrification under realistic flue-gas conditions.
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JOURNAL OF NANOPARTICLE RESEARCH
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2026
·Vol. 28
·期 8
·216
·
IF 3.5
Liu Sinan,Wang Li,Lü Fulin,Yang Shuzhen
Fusarium graminearum is a pathogenic fungus responsible for significant plant diseases. To combat infections caused by this pathogen, we designed a pH-responsive nano-pesticide thiabendazole@MIL-101(Fe). Through systematic optimization of the loading parameters, the optimal preparation conditions were determined as follows: the thiabendazole solution concentration was 3 mg/mL, the amount of carrier used was 0.0400 g, and the loading time was 6 h. Structural characterization revealed that MIL-101(Fe) possesses a uniform octahedral structure with a smooth surface. Thiabendazole was successfully loaded into its pores without damaging the crystal structure of MIL-101(Fe). Regarding release behavior, thiabendazole@MIL-101(Fe) exhibited significant pH-responsive characteristics. After 238 h, the cumulative release rate of thiabendazole reached 74.08% at pH = 5.0, while the cumulative release rates at pH = 7.0 and 9.0 were 62.17% and 57.22%, respectively. The release kinetics study showed that the release process of thiabendazole@MIL-101(Fe) followed a first-order model. Furthermore, Ritger-Peppas model fitting suggested that the release mechanism is consistent with Fickian diffusion across pH = 5.0, 7.0, and 9.0. The prepared thiabendazole@MIL-101(Fe) displayed antibacterial activity comparable to that of conventional SC Thi and exhibited no adverse effects on wheat seed germination or seedling growth. This study provides new ideas and methods for the development of efficient and environmentally friendly nano-pesticides.
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ACS Sustainable Chemistry & Engineering
·
2026
·Vol. 14
·期 28
·12821-12832
·
IF 7.6
Chen Yuhan,Xie Haiyang,Wu Yubo,Luo Jiangxue,Zhan Tianren,Zhang Yanjuan,Huang Zuqiang,Hu Huayu,Gan Tao
Developing highly efficient Fe-based single-atom catalysts (SACs) for the selective oxidation of C–H bonds to produce value-added aromatic ketones under mild conditions is still challenging. Herein, the construction of amphiphilic Fe SACs with electron-deficient Fe–S 2 O 2 structure supported on porous S-doped lignin-derived carbon (Fe 1 /SLC) was achieved using a ball milling combined with an impregnation method. Due to the synergistic interaction between electron-deficient Fe–S 2 O 2 sites and ethylbenzene (EB)–water microinterfacial effects, Fe 1 /SLC markedly enhanced the catalytic activity and acetophenone (AP) selectivity for the selective oxidation of EB to AP under 60 ° C for 12 h, obtaining an AP selectivity of 99.1% at 99.0% EB conversion and a high turnover frequency (TOF) of 2422.3 mmol EB g Fe –1 h –1 , which were much higher than those of the control catalyts (Fe 1 /LC and Fe NPs /SLC), surpassing most reported catalysts in similar reaction system. The electron-deficient Fe–S 2 O 2 sites were conducive to the cleavage of TBHP to generate 1 O 2 , • O 2 – , and • OH radicals, wherein • O 2 – was dominant, while 1 O 2 and • OH performed a secondary role. Meanwhile, the density functional theory calculations revealed that the amphiphilic property of Fe 1 /SLC induced by the C–SO x –C structure heightened the catalytic activity and AP selectivity, which originated from the unique interfacial hydrogen-bonding interactions and adsorption energy gradients. Furthermore, Fe 1 /SLC showed excellent recyclability, long-term storage stability, and satisfactory universality. This work provides a promising strategy to simultaneously improve the catalytic activity and aromatic ketones selectivity of the selective oxidation of C–H bonds.
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JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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2026
·
IF 5.9
Qiwei Zhong,Yueyang Liu,Jiayu Song,Yuchao Cui,Haozhe Li,Li Zhao
Fe/Ti co-doping converts the P2 phase to the OP4 phase and suppresses the undesirable P2-O2 phase transition. • Fe/Ti co-doping breaks the Na + /vacancy ordering and improves sodium ion transport capability. • Ti doping can shorten the TM-O bonds and lengthen the Na-O bonds. P2-type Na 2/3 Ni 1/3 Mn 2/3 O 2 is regarded as a promising cathode material for sodium-ion batteries owing to its high specific capacity and low cost. Nevertheless, its practical application is hindered by irreversible structural degradation and rapid capacity decay associated with the detrimental P2–O2 phase transition during deep Na + extraction. In this work, Fe and Ti are co-incorporated into Na 2/3 Ni 1/3 Mn 2/3 O 2 via a sol-gel method to enhance structural stability. Rietveld refinement of X-ray diffraction (XRD) patterns indicates that Ti doping shortens TM–O bonds and enlarges Na + diffusion channels by increasing Na-O distances, thereby enhancing structural stability and Na + transport kinetics. In situ XRD analyses reveal that Fe/Ti co-doping regulates the phase transition pathway from the irreversible P2–O2 phase transition to a reversible P2–OP4 phase transition, effectively mitigating structural degradation during cycling. Electrochemical measurements demonstrate that optimized Fe/Ti co-doping enhances the overall electrochemical performance. The optimized composition, Na 2/3 Ni 1/4 Fe 1/12 Mn 7/12 Ti 1/12 O 2 , exhibits excellent cycling stability with a capacity retention of 82.33% after 50 cycles at 0.2 C, and delivers a specific capacity of 61.43 mA h g −1 at a high rate of 5 C. This study demonstrates that the combination of sol-gel synthesis and co-doping engineering provides an effective strategy for designing high-performance cathode materials for sodium-ion batteries.
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MINERALS ENGINEERING
·
2026
·
IF 6
Zhelin Liu,Dan Liu,Zhipeng Liu,Mingyan An,Luyi Xu,Bingduo Xing,Shuming Wen
Using Fe 3+ enhanced the inhibitory effect of MA on calcite. • Fe 3+ adsorbs on calcite CO 3 2– sites, providing new sites for MA adsorption. • A novel, efficient, and eco-friendly inhibitor based on the Fe–MA complex was proposed. Due to the similar surface properties of fluorite and calcite, selective adsorption of collectors remains a challenge in their separation. In this study, a novel composite inhibition system using Fe 3+ -enhanced Malic acid (MA) was developed to selectively suppress calcite by regulating interface coordination interactions. A systematic investigation was conducted through flotation tests, contact angle measurements, molecular dynamics simulations, and surface analysis (FTIR, ToF-SIMS, XPS). Micro-flotation results showed that the recovery of calcite decreased from 64.67% to 8.75% with the addition of Fe 3+ , while the fluorite recovery remained above 92%, indicating significant enhancement in selectivity. Contact angle and molecular dynamics simulations revealed that the Fe–MA complexes markedly increased the hydrophilicity of calcite surfaces. FTIR and ToF-SIMS confirmed the presence of carboxyl groups (–COOH) and iron species (FeO – , FeOH – ) on calcite surfaces, indicating Fe–MA complex adsorption. XPS and DFT results demonstrated that MA adsorbs onto calcite via weak Ca–O bonds, and Fe promotes multi-site adsorption through Fe–O bonds, strengthening the adsorption and enhancing separation efficiency. This study highlights a cooperative coordination mechanism between metal ions and small organic acids, offering a novel strategy for designing low-dose, highly selective green inhibitors for calcium minerals.
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高影响因子
POLYHEDRON
·
2026
·
IF 2.8
Wang Ye,Xiang Li,Jian Tian,Xiyue Feng,Kexin Luo,Xinru Liu,Ling Li,Yingxi Wang
Water pollution has emerged as a critical global challenge, with persistent antibiotic residues posing severe threats to ecosystems, calling for efficient aqueous remediation technologies. In this study, a MIL-100(Fe) −24 /MoS 2 hybrid catalyst was constructed by integrating MIL-100(Fe) with MoS 2 . The hybrid material served as a heterogeneous catalyst activating peroxymonosulfate (PMS) in a photo-Fenton system for tetracycline (TC) degradation, achieving 80% removal within 30 min. Quenching experiments verified the involvement of both radical and non-radical pathways, with SO 4 • − and singlet oxygen ( 1 O 2 ) identified as the dominant reactive species. The effects of key parameters including catalyst dosage, PMS concentration, and initial pH were systematically investigated. Degradation intermediates were analyzed, and the catalyst exhibited satisfactory reusability and stability.
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高影响因子
Nature Communications
·
2026
·Vol. 17
·期 1
·1699
·
IF 15.7
Sui Huiting,Lou Wenhua,Xiao Shibing,He Jia,Wu Fuling,Liu Ying,Wei Jianbiao,Lu Haijie,Sun Huajun,Ma Xiaoguang,Zhang Shujun
Defect microstructures, particularly dislocations, are pivotal in determining the functional properties of ferroelectric thin films. While their density is routinely considered, the critical role of their spatial configuration has remained largely unexplored and difficult to control. Here, we develop a controlled self-assembly strategy for dislocations in Bi(Fe,Mn)O 3 thin films on Ni-Cr that directly addresses this challenge. By employing a LaNiO 3 buffer layer, we template a discontinuous-columnar grain structure and guide the self-assembly of edge dislocations along grain boundaries in a topologically-protected configuration. The resulting ordered microstructure promotes a more uniform strain field and more coherent FeO 6 octahedral tilting, significantly enhances polarization homogeneity, leading to a lower domain-switching barrier and a more uniform domain pinning effect. Consequently, the BFMO thin film exhibits dramatically superior aging stability after 60 days at 60 °C, exhibiting far smaller reductions in remanent polarization (~20%) and coercive field (~35%) compared to the BFMO thin film grown directly on Ni-Cr. These findings establish a defect engineering paradigm wherein the deliberate dislocation rearrangement is leveraged to unlock superior ferroelectric performance.
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PubMed
高影响因子
Surfaces and Interfaces
·
2026
·
IF 6
Jiayuan Zhang,Zhenlong Liu,Yu Liu,Liping Jiang,Caixia Ma,Lei Yang,Zunyuan Xie,Jizhen Li,Guofang Zhang
Transition metal oxides exhibit inherent catalytic activity for ammonium perchlorate (AP) decomposition; however, their performance is limited by the scarcity of accessible active sites and low conductivity. Therefore, morphology-directed structural design and interfacial engineering are highly desirable. In this study, two-dimensional (2D) MCo 2 O 4 nanosheets ( M = Fe, Ni, Cu, and Cr) were synthesized via a thermal expansion method and subsequently combined with three types of carbon materials C x (C x = rGO, CNTs, and g-C 3 N 4 ) to construct 2D MCo 2 O 4 /C x composites. Structural analyses demonstrate that the intimate interfacial coupling between 2D MCo 2 O 4 nanosheets and carbon materials effectively suppresses restacking and establishes a continuous conductive network. More importantly, strong interfacial coupling enables effective electronic modulation at the heterojunction, resulting in an optimized charge distribution and enhanced interfacial electron transfer. Among all catalysts, 5 wt. % FeCo 2 O 4 /rGO-1 demonstrates the most notable catalytic activity for AP decomposition, reducing its peak temperature in the high-temperature decomposition stage by 137.4 °C and increasing its heat release by 736.33 J·g⁻ 1 . Electrochemical tests confirm that accelerated interfacial charge transfer enhances AP pyrolysis. Kinetic modelling, TG-FTIR-MS, and DFT calculations indicate that the 2D-2D heterointerface boosts the adsorption of the AP intermediate NH 3 and promotes its conversion into higher-valence NO 2 , while also accelerating electron transport and lowering the decomposition barrier. The synergistic effect between interfacial electron transport and the heterojunction promotes the rapid AP degradation. Based on these findings, a plausible catalytic mechanism for AP decomposition is proposed.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
·
IF 6.7
Yanzhi Cai,Xue Huang,Laifei Cheng,Yalong Chai,Zixuan Yu,Mingxing Chen,Shaoxiong Ren,Jiaoe Dang
Achieving self-supporting superflexible binder-free composites where all components serve simultaneously as structural backbones and microwave-absorbers is a technical challenge. This study successfully combined several microwave absorbing materials, including Fe 3 O 4 , NiCo-MOF derivatives, and CNTs, into a binder-free self-supporting superflexible Buckypaper in one step through directional pressure filtration. Fe 3 O 4 -CoNi-MOF was in-situ grown on a single CNT to form a magnetic MOF-coated CNT (CNT@MOF), which was then subjected to high-temperature carbonization to obtain a magnetic MOF-derived carbon-coated CNT (CNT@Fe 3 O 4 /CoNi-C). The combination of Fe₃O₄/CoNi-MOF and CNTs simultaneously promotes magnetic loss and dielectric loss, thereby significantly enhancing impedance matching and electromagnetic energy attenuation capabilities. The optimal carbonization temperature for the CNT@Fe 3 O 4 /CoNi-C Buckypaper is 700 ℃, at which the minimum reflection loss (RL min ) is −58.12 dB and the absorption bandwidth is 5.02 GHz. The interweaving of CNTs forms a robust yet superflexible skeleton, while the in-situ growth of Fe₃O₄/CoNi-MOF derivatives on a single CNT enhances the structural stability of the skeleton. The Buckypaper remains intact after repeated 2 mm-radius curling, knotting, 180° bending. Therefore, this study presents new insights into the preparation of self-supporting, superflexible MOF-derived microwave absorption materials.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Yingying Yang,Shuang Tian,Zehao Huang,Xuyang Lu,Chunxiao Lan,Yuelu Li,Jiacheng Zhang,Lijie Huang,Chongxing Huang,Hui Zhao,Qingshan Duan
To address the issues of energy-consuming fabrication, poor mechanical properties, and low sensing sensitivity of conventional hydrogel sensors, this study reports the development of an iron-tannic acid (Fe-TA)-mediated autocatalytic strategy for the rapid construction of “covalent-ionic” dual-crosslinked cellulose-based hydrogels. This system spontaneously generates radicals at room temperature through the redox cycle of Fe-TA and ammonium persulfate, driving the polymerization of carboxymethyl cellulose (CMC) with acrylamide to achieve ultrafast in-situ formation of the hydrogel within 119 s. By introducing carboxylated cellulose nanofibers (CCNFs) and utilizing Fe 3 + ion coordination, a dual-crosslinked network hydrogel (denoted as CAMFFE hydrogel) was constructed, leading to markedly improved mechanical properties with a compressive strength of 386 kPa and an elongation at break of 528%. Benefiting from the multifunctional integration of Fe 3+ (catalysis, crosslinking, and conductivity), this hydrogel strain sensor exhibits high sensitivity with a gauge factor (GF) ranging from 1.46 to 4.16, and rapid response (0.3 s) and recovery (0.5 s) over the strain range of 0–500%, along with strong adhesion to substrates such as wood and skin (up to 85.7 kPa). The study further demonstrates its versatile applications in human motion monitoring and wireless handwritten recognition, providing new materials and valuable design insights for the development of high-performance, sustainable flexible electronic devices.
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