Surfaces and Interfaces
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2026
·
IF 6
Lihua Fan,Yuhan Niu,Yanru Zhang,Di Wu,Yongning Wu,Guoliang Li
The escalating challenge of bacterial resistance necessitates the development of novel antibacterial agents, positioning the synthesis of nanomaterials as a pivotal strategy for controlling pathogenic bacteria in the food sector. In this study, a novel H₂O₂ self-supplying nanocomposite was developed, comprising Fe/Mn nanoparticles functionalized with cuprous oxide (CuO₂), denoted as Fe/Mn@CuO₂. This composite exhibit tandem peroxidase (POD)-mimetic and glutathione (GSH)-depleting activities, enabling the on-demand generation of hydroxyl radicals via self-produced H₂O₂ and O₂ under acidic conditions (pH 5.5). The synergistic integration of H₂O₂ self-generation, POD-like catalysis, and GSH consumption significantly enhanced reactive oxygen species (ROS) production, leading to efficient eradication of E. coli (99.4%) and Staphylococcus aureus (99.1%) and remarkably antibiofilm efficacy. This multi-mechanistic action induced pronounced morphological alterations and severe membrane disruption in both bacterial strains. Furthermore, Fe/Mn@CuO₂ demonstrated the ability to denature DNA/RNA, disrupt energy metabolism, and achieve potent bacterial inactivation without detectable cytotoxic side effects. This work marked a substantial advancement in overcoming the drawbacks of conventional bactericidal strategy by combining self-sustaining H₂O₂ supply, POD-like activity, and GSH depletion, thereby presenting a highly promising antibacterial platform. Download: Download high-res image (304KB) Download: Download full-size image
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Coatings
·
2026
·Vol. 16
·期 9
·1010
·
IF 3.4
Jibo Miao,Ruizhi Peng,Shu Feng,Xue Liu
With rapid development of 5G/6G communication and high-power electronic devices, electromagnetic interference (EMI) shielding textiles are urgently required to mitigate electromagnetic pollution. Traditional metallic shielding suffered from heavy weight, poor corrosion resistance, and secondary electromagnetic reflection, while continuous basalt fibers (CBFs) exhibit excellent mechanical strength, lightweightness, thermal/chemical resistance, and electrical insulation, which makes CBFs ideal substrates for EMI devices. Herein, a multifunctional waterborne polyurethane (WPU) sizing agent (coating emulsion) integrated with Mn-Zn spinel ferrite was developed for in situ lubrication on the as-spun CBFs. The composite sizing agents consisted of a WPU matrix, water-soluble epoxy, mineral oil lubricant, CTAB surfactant, KH-570 coupling agent, and micro-sized Mn-Zn ferrites. Characterizations including particle size distribution, thermogravimetric analysis, water contact angle (WCA), water absorption, FTIR, XRD, and SEM were conducted to verify uniform anchoring of ferrites on the CBF surfaces. Increasing ferrite dosages induced slight particle aggregation, elevated surface hydrophobicity (WCA = 42.4° → 99.43°), and reduced water absorption (65% → 35%), which greatly improved the moisture resistance of the CBFs. The X-band EMI shielding tests revealed that the total shielding effectiveness (SET) of modified CBF fabrics increased from 0.11 dB (pristine fiber without ferrite) to 58.57 dB at a loading of 8.0 g/L ferrite. The absorption loss (SEA) dominated the shielding performance over reflection loss (SER). The low-to-moderate contents (1.5–3.0 g/L) of ferrite achieved ultra-high absorption, while higher ferrite loading (5.0–8.0 g/L) intensified the impedance mismatch and enhanced surface reflection. This work establishes a scalable fabrication of absorption-prioritized lightweight CBF shielding, which provides a feasible pathway for flexible EMI shielding textiles.
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JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
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2026
·Vol. 41
·期 2
·353-363
·
IF 1.4
Yan Ming,Deng Yuxiao,Yan Zhuanlong,Li Hongyu,Cao Mengyang
This study reported the synthesis of magnetic solid solutions V 2 (A x B y Sn 1− x − y )C (where A and B are Mn, Fe, or Co) MAX phases. These materials were prepared by incorporating magnetic elements into the V 2 SnC MAX phase via pressure-less sintering at 1 000 °C for 3 hours. XRD analysis reveals that the composition with x = y = 0.2 exhibits a shift of diffraction peaks to higher angles, indicating lattice parameter changes, and achieves the highest phase purity with the maximum solid solution limit, further increases in the dopant content led to the formation of impurities. While the solid solution of magnetic elements preserves the characteristic layered structure of the MAX phase, it successfully induces magnetic properties. The magnetic transition temperatures for these solid solutions ranges from 61 to 200 K. Specifically, V 2 (Mn x Co y Sn 1− x − y )C demonstrated hard magnetic characteristics, with a high saturation magnetization (6.536 emu/g) and large remanence (4.236 emu/g). In contrast, V 2 (Mn x Fe y Sn 1− x − y )C and V 2 (Fe x Co y Sn 1− x − y )C exhibits soft magnetic behavior, evidenced by their narrow hysteresis loops and low coercivity. Their saturation magnetization values are 3.80 and 1.784 emu/g, respectively. The distinctly “S”-shaped hysteresis loop of V 2 (Fe x Co y Sn 1− x − y )C further confirms its soft magnetic nature.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
·
IF 8.7
Xiaobing Yao,Yuan Ruan,Ting Rao,Fangyou Lin,Wenbin Zhang
Prostate cancer is a prevalent immune-cold malignancy in which hypoxia and glutathione (GSH) enrichment hinder redox-dependent therapies and cuproptosis. A hyaluronic-acid–coated copper–manganese Prussian blue nanomedicine (Cu/Mn-PB@HA) was developed to remodel the tumor microenvironment (TME) and enhance mitochondria-associated cuproptosis. The multivalent Cu/Mn centers enable catalase-like O 2 generation, GSH-oxidase–like depletion of GSH, and Fenton-like ·OH production, which together enhance chemodynamic therapy (CDT) and create a favorable window for cuproptosis. In acidic and GSH-rich conditions, copper valence cycling initiates cuproptosis, whereas released Mn 2+ enhances CDT and activates the cGAS–STING pathway, thereby promoting dendritic-cell maturation and cytotoxic T-cell responses. The HA shell enables CD44-mediated enrichment, improving tumor accumulation without compromising biosafety. In vitro , the platform elevates ROS, induces mitochondrial depolarization, downregulates HIF-1α, and modulates cuproptosis-related proteins. Concurrently, immunogenic cell-death markers are elevated together with cGAS–STING signaling. In vivo , preferential tumor accumulation and significant tumor inhibition are achieved with favorable serum biochemistry and hepatic/renal histology. By integrating “oxygenation–desensitization–ROS” chemistry with Mn 2+ - enhanced immune activation, Cu/Mn-PB@HA provides a comprehensive strategy for treating immune-cold solid tumors and serves as a versatile platform for theranostic development.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Ting Bian,Jingwen Zhang,Zheng Yang,Feitao Fan,Liuting Zhang,Shitan Yan,Petr Senin,Jie Yu
Designing affordable electrocatalysts that accelerate the oxygen evolution reaction and resist chloride corrosion is key for practical seawater electrolysis. A fan-like Mn–Co 3 O 4 @Mo–Co 3 O 4 core–shell heterostructure was synthesized, where vertically aligned Mn-doped Co 3 O 4 nanowires serve as structural ribs and conformal Mo-doped Co 3 O 4 nanosheets form the fan surface. Dual Mn/Mo doping creates oxygen vacancies and modulates the metal–oxygen electronic structure, boosting intermediate adsorption and OER kinetics, while the nanosheet–nanowire framework maximizes active sites and facilitates charge and mass transport. As a result, the catalyst delivers an overpotential of 220 mV at 50 mA cm −2 in 1 M KOH, outperforming other reference samples. In alkaline seawater, it maintains overpotentials of 252 and 289 mV at 50 and 100 mA cm −2 and exhibits negligible degradation over 120 h with nearly 100% Faradaic efficiency. These results demonstrate that synergistic electronic tuning and nano-architectural design enable robust electrocatalysts for efficient seawater electrolysis.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Ling-Yun Li,Ming-Yuan Shen,Jing-Song Wang,Tao Wu,Wen-Cui Li
P2-type Mn-based layered oxide cathode materials are competitive candidates for sodium-ion batteries (SIBs), which are expected to be widely used in large-scale electrochemical energy storage applications due to their easy availability. However, MnO6 octahedra centered around Mn3+ are inclined to adverse phase transitions and lattice oxygen loss under high operating voltages, which markedly compromise the capacity and cycling stability. Here, a configurational entropy tuning strategy was proposed to optimize the P2-type Na0.8Li0.17Mg0.18Mn0.66O2 (LMM) cathode. The as-synthesized cathode material, Na0.8Li0.17Ca0.025Mg0.12Ni0.05Mn0.66O2 (LMCNM), conforms to the standard P63/mmc crystal phase. Impressively, this material exhibits a capacity retention rate of 92% after 100 cycles at a 0.4C rate (where 1C = 125 mA h g–1) and demonstrates minimal volume change (0.94%) during charge–discharge cycles at higher working voltages (2.0–4.3 V). In situ X-ray powder diffraction (XRD), ex situ X-ray photoelectron spectroscopy (XPS), and computational analyses collectively indicate that through the charging and discharging processes of LMCNM, there is no obvious Jahn–Teller distortion, while there is clear evidence for charge compensation from Mn3+ to Mn4+. Furthermore, partial reversible anionic redox has been achieved through codoping with Ca and Ni to harmonize expressive stability and high capacity.
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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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WATER RESEARCH
·
2026
·
IF 12.8
Ping Zhang,Chenchen Zhao,Fei Jiang,Chuyang Wu,Tianqi Wang,Xing Xu,Mengjie Wu,Zhanli Chen,Youqin Zou
Green Fenton-like reactions based on monometallic single-atom dual-reaction-center systems have emerged as promising strategies for sustainable water purification owing to their oxidant-free operation and low energy demand. However, their practical deployment is often hindered by limited degradation kinetics and unresolved mechanisms. Here, we report a carbon nitride-supported Fe/Mn bimetallic catalyst composed of Fe nanoclusters and adjacent Mn single atoms (FeMn-CN) that enables ultrafast and self-sustaining pollutant degradation under oxidant-free conditions. The catalyst achieves 99.5% removal of bisphenol A (BPA) within 3 min, setting an ultrahigh rate to date among self-sustaining water purification systems. Combined experimental investigations and density functional theory calculations reveal that the reaction proceeds predominantly via a direct electron-transfer pathway. Fe nanoclusters serve as primary electron acceptors, extracting electrons from BPA without external oxidants, while adjacent Mn single atoms coordinated in Mn-N 4 sites synergistically enhance the electron-accepting capacity of Fe and substantially lower the charge-transfer energy barrier. This atomic-level cooperation endows FeMn-CN with exceptional activity across a broad pH range (pH 2-10), strong tolerance to complex water matrices, high selectivity toward electron-rich contaminants and facile regeneration. Furthermore, continuous-flow reactor tests and life-cycle assessment collectively verify the scalability and superior environmental sustainability of the FeMn-CN process. This work establishes an atomic-level design principle for electron-transfer-dominated self-sustaining remediation materials, advancing the development of next-generation oxidant-free water purification technologies.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xiaoqiang Li,Xiaorui Zhang,Xin Zhang,Shengjun Wen,Xiaoxiao Duan,Yongsheng Ren
2-Mercaptobenzothiazole (MBT), a highly toxic industrial corrosion inhibitor containing a thiol group, poses severe threats to ecological and human health. In this study, a trimetallic cathode (FeCoMn@LNC-500) was fabricated by in situ growing oxygen-vacancy-rich FeCoMn-LDHs on carbon paper followed by carbonization at 500 °C. FeCoMn@LNC-500 exhibited a cylindrical fiber-rod structure decorated with numerous densely aggregated spherical particles, which increased the electrochemical active surface area and reduced the charge-transfer resistance. Under optimal conditions, FeCoMn@LNC-500/EF achieves a degradation rate of 100% within 70 min through singlet oxygen ( 1 O₂) mediated non-radical oxidation (k = 0.0557 min −1 ). The removal efficiency achieved with this cathode was approximately 11.8, 5.0, 2.0, and 3.2 times higher than those of the PC-500, FeMn@LNC-500, CoMn@LNC-500, and CoFe@LNC-500 cathode systems, respectively. The outstanding degradation performance is primarily attributed to the carbon paper's excellent conductivity, which enhances the in-situ synergistic cycling of Co, Fe, and Mn to accelerate the Fenton reaction while also improving system stability, as demonstrated by a 7-cycle operational test and the detection of extremely low metal-ion leaching. Quenching experiments and electron paramagnetic resonance (EPR) spectroscopy confirmed that the non-radical 1 O₂ played a dominant role in the oxidation process. HPLC-MS analysis revealed the degradation mechanism and pathway of MBT: non-radical-dominated selective cleavage of the S N bond followed by stepwise mineralization. The carbon-paper-based cathode developed in this work provides insights into the electro-Fenton degradation of thiol-containing wastewater and is expected to offer a new strategy for the efficient treatment of coal-chemical pipeline wastewater.
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RESEARCH ON CHEMICAL INTERMEDIATES
·
2026
·
IF 3.3
Qie Junmao,Cao Mengfei,Zong Jiaqi,Chang Jian,Zhang Shuqi,Xu Tong
Selective catalytic reduction (SCR) is presently the predominant technology for controlling nitrogen oxides (NO x ) emissions from industrial flue gas in China. Central to its operation is the denitration catalyst; however, the conventional systems face constraints such as a limited active temperature range, potential toxicity of certain active components, and high production costs. Bayan Obo rare earth tailings, enriched in catalytically active elements including Fe, Ce, and Nb, present a promising alternative raw material for denitration catalyst development. Currently, catalyst modification to improve denitration performance is a key research focus. In this study, Fe-rich magnetic separation rare earth tailings were obtained via magnetic separation processing of Bayan Obo tailings. We systematically evaluated the denitration performance and mechanism of catalysts prepared from these magnetic separation rare earth tailings through Mn modification in combination with NaOH alkaline fusion activation. Results indicate that when the catalyst is produced under conditions of 3 wt.% Mn loading and an ore-to-alkali ratio of 1:1.5, activated at 200 °C, the denitration efficiency reaches 89.6%. Furthermore, as the reaction temperature increases, the catalyst consistently exhibits high N 2 selectivity, maintaining values above 90% within the 100–300 °C range. The Mn-modified, NaOH alkaline fusion-activated catalyst shows enhanced stable adsorption of ammonia species, suppression of intermediate conversion to N 2 O, and improved N 2 selectivity. This work offers a viable approach for the high-value, sustainable utilization of rare earth tailings in environmentally friendly denitration technologies.
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CATALYSIS TODAY
·
2022
·
IF 6.562
Shuqi Zhao,Kunli Song,Ruiyu Jiang,Dandan Ma,Hongming Long,Jian-Wen Shi
Nitrogen oxides (NO x ) are typical atmospheric pollutants that harm the environment and human body, and selective catalytic reduction (SCR) with NH 3 is one of the most effective technologies to deal with NO x emissions at present. In this work, a monolithic catalyst, Sm-modified Mn-Ce composite oxides (Sm-MnCe) supported on cordierite (CC), is prepared by impregnation for the first time, and their denitration (de-NO x ) performance in NH 3 -SCR reaction is evaluated in detail. The results show that 0.1Sm-MnCe/CC (Sm/Mn mole ratio is 0.1) has the best de-NO x efficiency with above 80 % NO x conversion from 60° to 270°C, and the high NO x conversion can be maintained within 15 h in the presence of 100 ppm SO 2 . It is found that appropriate introduction of Sm increases the specific surface area and acid sites, improves the redox environment, elevates the content of Mn 4+ on the catalyst surface, which are conducive to the improvement of catalytic activity. In addition, the interaction between active components (Sm, Mn and Ce) also plays a positive role for the excellent de-NO x activity. It is revealed by in-situ diffuse reflectance infrared Fourier transform spectra (DRIFTS) that the NH 3 -SCR reaction over the 0.1Sm-MnCe/CC catalyst follows Eley-Rideal (E-R) and Langmuir-Hinshel (L-H) mechanisms. This work provides ideas for the preparation and modification of monolithic catalysts, which is conducive to promoting the practical industrial application of low-temperature SCR de-NO x technology.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Jingyu Ren,Zhouzhou Yao,Qian Wei,Ruotong Wang,Yuan Liu,Long Wang,Kaibin Zheng,Shuai Wang,He Guo,Zhirui Niu,Jian Wang,Jin Han,Lei Lü,Yanzhong Zhen,Jie Li
Organic pollutants of olive mill wastewater (OMW) have caused various negative effect to water environments. It is imperative to develop an effective technology for eliminating organic pollutants in OMW. In this study, representative organic pollutants in OWM, ferulic acid (FA) and caffeic acid (CA), were removed from water by dielectric barrier discharge (DBD) plasma and Mn/CoOOH/activated carbon fiber (ACF) catalyst. The treatment performance and catalytic mechanisms were studied. The results show that the combined system could effectively remove FA and CA. For example, FA and CA degradation efficiency was 81.6% and 94.2% in the 20 L of mixed wastewater with the 100 min treatment using DBD combined with Mn/CoOOH/ACF. Experiments and density functional theory (DFT) calculations indicate that the electron transfer from the catalyst to antibonding orbits of O 3 and H 2 O 2 caused the dissociated adsorption, promoting the transformation of O 3 and H 2 O 2 to ·O, singlet oxygen and ·OH. Additionally, the doping of Mn in CoOOH benefited the electron transfer because Mn had a higher d-band center than Co in Mn/CoOOH, which was conducive to the interaction of O 3 and H 2 O 2 with the catalyst. The possible degradation pathways of FA and CA were proposed.
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