Journal of Coatings Technology and Research
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2026
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IF 3.4
Xiao Dingwen,Zhang Huidong,Fang Yueguang,Wang Ziran,Xiu Lanling,Ye Junwei
Textiles are susceptible to microbial colonization due to prolonged accumulation of organic residues, such as sweat and skin secretions. These residues serve as nutrients for pathogenic growth, elevating the risk of infection in everyday environments. To mitigate, we developed a composite coating with persistent antibacterial properties by grafting polyethyleneimine (PEI) onto PET fabric surfaces followed by Cu(II) coordination. The functionalized fabrics (PET-PEI-Cu) exhibited exceptional antibacterial efficacy, achieving a bacteriostatic rate exceeding 99.99% against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus , significantly outperforming commercial PET fabrics. Furthermore, PET-PEI-Cu demonstrated excellent laundering durability, retaining its antibacterial efficacy even after 50 repeated washing cycles. With its sustained antimicrobial activity, this fabric holds promise for reducing bacterial contamination in hospital bedding. This could help mitigate cross-infection risks, reduce the disinfection burden on healthcare staff, and lower operational costs. This work provided a scalable strategy for preparing high-performance, long-lasting antibacterial textiles with broad application prospects in healthcare and public health. Graphical abstract
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高影响因子
MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Siqi Zhang,Xiao Li,Yinhui Yi,Zixiang Liao,Yue Ren,Kunqi Fan,Zhiyuan Wang,Pengpeng Yu,Libo Li,Tianyan You
Pt NPs was loaded to enhance the laccase-like activity of Cu-based nanozyme. • Design of a three-channel colorimetric sensing array based on the nanozyme. • The array enabled the simultaneous identification and detection of multiple phenol. • The developed sensor array showed superior analytical ability for phenol detection. Phenolic compounds represent a class of hazardous environmental pollutants characterized by high toxicity, low biodegradability, and a strong tendency to bioaccumulate, leading to considerable risks for ecological safety and human health. In this work, a novel bimetallic nanozyme Pt@GA-Cu was synthesized by loading platinum nanoparticles (Pt NPs) onto a copper-based laccase-like material. The synergistic interaction between Pt and Cu significantly enhanced the electron transfer rate and catalytic efficiency, resulting in better laccase-like performance than that of the individual materials. By this enhanced performance, a time-dependent three-channel colorimetric sensor array was constructed. With the integration of machine learning (ML), specifically linear discriminant analysis (LDA) and hierarchical cluster analysis (HCA), the as-developed sensor successfully not only distinguished four distinct phenolic compounds (2,4-DP, 4-cP, CAT, and 2,6-DMP) with high accuracy, but also exhibited exceptional discriminative capabilities even when deployed within intricate multi-component phenolic solutions. Furthermore, to evaluate the functionality of the sensor in practical condition, real water samples were tested using standard addition methods, and satisfactory recovery rates (93.15–112.5%) and low relative standard deviations (<2.2%) were obtained. This study provides an efficient and reliable strategy to rapidly detect and differentiate among various phenolic pollutants, offering considerable potential for environmental monitoring applications. A Pt-loaded Cu nanozyme-based time-dependent colorimetric array with machine learning simultaneously discriminates and detects four phenolic pollutants. Download: Download high-res image (179KB) Download: Download full-size image
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高影响因子
INORGANIC CHEMISTRY
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2026
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IF 4.6
Yuanyuan Yang,Hang Yin,Hua-Jun Qiu,Chun-yang Zhang,Henglei Jia
The high-yield synthesis of uniform Cu/Ru nanostructures is crucial for catalyzing nitrate (NO3–) reduction to ammonia (NH3), yet it remains highly challenging. Herein, we report a facile strategy for synthesizing Cu/Ru bimetallic nanocages in high yield, driven by the Kirkendall effect. This process induces nonequilibrium atomic interdiffusion at the Cu/Ru interface, generating a net outward flux of Cu atoms and a counter-flux of vacancies, which collectively lead to the formation of a uniform nanocage structure. Importantly, the Cu87Ru13 nanocages exhibit superior performance in the electrochemical NO3– reduction reaction (NO3–RR), achieving a maximal Faradaic efficiency (FE) of 91% and an NH3 production rate of 3353 mmol h–1 g–1 at −0.3 V (vs reversible hydrogen electrode (RHE)). In situ characterization reveals that within Cu/Ru nanocages, Cu sites adsorb NO3– and reduce it to *NO2, while Ru sites reduce adsorbed *H, which protonates reaction intermediates to facilitate the conversion of NO3– to NH3.
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PubMed
高影响因子
LANGMUIR
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2026
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IF 4.4
Honglin Li,Yingqi Duan,Qingwen Feng,Linjiao Wei,Jingbin Zeng,Ziyue Chen,Qingtong Zhang,Yanpeng Chen,Zifeng Yan
Ag–Cu tandem catalysis provides an effective strategy to enhance C2+ selectivity in the electrochemical CO2 reduction reaction (CO2RR) by integrating CO generation and utilization for C–C coupling. Here, we report a series of Ag@Cu2O, Ag@CuO, and Ag@CuO-BDC core–shell catalysts designed to regulate the CO generation, Cu-oxidation states, and surface structures. The Ag@Cu2O catalysts exhibit pronounced tandem effects, suppressing CH4 formation while enhancing the C–C coupling on the Cu sites. Notably, Ag@Cu2O-30 achieves a high C2H4/CH4 Faradaic efficiency ratio of 6.5 at −1.8 V (vs RHE) with an increased C2H4 partial current density of 12.3 mA cm–2. Oxidation to Ag@CuO further modifies the Cu species distribution, facilitating CO and CO2 diffusion while reducing H2 formation. Moreover, constructing Cu-BDC-MOF followed by electrochemical reconstruction generates additional oxygen vacancies and stabilizes Cu+ species, enhancing C2H4 selectivity and stability but with increased CH4 formation and reduced current density. This study highlights Ag–Cu tandem catalysis and structural regulation of Cu as effective strategies for achieving selective reduction of CO2 toward C2H4.
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PubMed
高影响因子
CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Jiuyu Chen,Zhiwen Liu,Zenghui Liu,Hao Wu,Chensheng Gao,Jiaqi Shi,Dingming Xue
Radioactive iodine ( 131 I and 129 I) produced by the development of nuclear energy poses a long-term threat to ecology and health. In this study, a series of Cu@Mn x Cu 10-x -C materials were synthesized using Mn x Cu 10-x -BTC as the precursor, followed by surface grinding with external copper salts and subsequent pyrolysis. The material achieved a uniform dispersion of high-density Cu 0 sites on the Mn-Cu carbon framework. The optimal material Cu@Mn 3 Cu 7 -C had saturated adsorption capacities of 346.6 mg/g and 1555.3 mg/g for iodide (I − ) and iodine (I 2 ) respectively, further improving under acidic and oxygen-rich conditions. In addition, it could maintain excellent I − adsorption performance in the presence of highly competitive anions, in actual water samples, and after high-dose γ-irradiation. Mechanism studies demonstrated that Cu 0 , as the reaction center, dominated the oxidation-adsorption of I − and the reduction and fixation of I 2 , while triiodide (I 3 − ) could be effectively eliminated through the [Cu → I 3 ] charge transfer complexation or disproportionation pathway. The Mn species cooperated with the Cu site through valence modulation and electron transfer. This study provides a material system and theoretical basis for the efficient removal of multiple iodine species in complex water bodies with high capacity, fast kinetics and good environmental adaptability.
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高影响因子
CERAMICS INTERNATIONAL
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2026
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IF 6
Yang Ma,Huimin Zhang,Juntao Xie,Dingran Li,Yufei Liu,Aimin Chang
A novel perovskite-type low-temperature thermistor ceramic, LaMn 1-x Cu x O 3 (0 ≤ x ≤ 0.5), was synthesized utilizing the sol-gel technique. X-ray diffraction (XRD) analysis verified the successful formation of a single-phase perovskite structure throughout the entire compositional range. Scanning electron microscopy (SEM) observations indicated that an increase in Cu 2+ doping concentration resulted in grain growth and a morphological evolution from square-shaped to polygonal grains. For all samples, the resistivities (ρ 65K ), activation energies for electrical conduction (E a ) and thermal constants (B 65/150 ) were in the ranges of 0.380 to 6.247 MΩ cm, 0.066 to 0.128 eV and 835-1213 K. The electrical characterization of LaMn 1-x Cu x O 3 ceramics demonstrates conformity with the small polaron conduction model. Analysis through impedance spectroscopy reveals that the electrical resistivity of the material is primarily controlled by grain boundary resistance. This study emphasizes the enhancement of electrical properties and the modulation of the band structure achieved through Cu 2+ ion doping, thereby offering a viable approach for the advancement of high-performance LaMnO 3 -based negative temperature coefficient thermistors operating at low temperatures.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Chang Liu,Long Shang,Siwei Yan,Zilan Zhang,Nana Zhang,Wenzhuo Bian,Liyuan Tian,Kui Lin,Rui Zhang,Jing Yang,Cunku Dong,Pengfei Yin,Xiwen Du,Hui Liu
Green hydrogen production via water electrolysis requires efficient, low-cost catalysts for the hydrogen evolution reaction (HER) to reduce energy consumption and system costs. Copper nanoparticles offer a promising low-cost alternative because they combine high conductivity, abundant surface sites, and earth abundance. However, conventional synthetic methods either require large amounts of ligands, which compromises environmental sustainability, or lack precise control over nanoparticle size. Here, we develop a ligand-free spark ablation in liquid (SAL) strategy for the size-controlled synthesis of Cu nanoparticles. By elucidating the formation and growth mechanisms, we show that spark discharge produces Cu nanoparticles through two competing mechanisms: plasma-mediated mechanism and molten-droplet mechanism. The thermal state of the discharge system controls the dominant ablation pathway and therefore determines the final particle-size distribution. The smallest and most uniform Cu nanoparticles deliver excellent hydrogen evolution performance, exhibiting a lower overpotential than commercial Pt/C at current densities above 400 mA cm −2 and stable operation for over 50 h. Mechanistic analysis indicates that their superior activity arises from an altered rate-determining step during HER. These findings establish SAL as a clean and controllable platform for producing metal nanoparticle catalysts, and provide mechanistic guidance for designing high-performance Cu-based electrocatalysts.
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高影响因子
POLYHEDRON
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2026
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IF 2.8
Haiyan Tao,Ye Zhang,Weixiong Dong,Jianyue Li,Huwei Lan,Na Xia
Organic dye pollutants is one of the serious pollutants in recent years，which is a major global challenge that threatens human health and sustainable societal development. Therefore, effective efficient removal of organic contaminants from water has thus become a vital issue. As an advanced oxidation process, the Fenton reaction has gained considerable attention owing to its effectiveness in degrading refractory organic pollutants. In this study, a simple sol-gel process was used to prepare carboxymethyl fiber copper‑iron complex (Fe/Cu-CMF) heterogeneous Fenton reaction catalyst by co-coordination with copper (II) and iron (III) using esterification-modified cottonseed meal fiber (CMF) as raw material. The results showed that the Fe/Cu-CMF membrane grafting was successful, and the carboxyl group was successfully introduced into the fiber surface structure by the esterification reaction. The preparation of a carboxylate fiber iron‑copper complex through coordination with Fe 3+ and Cu 2+ was carried out for the degradation of reactive red 195 dye, and its catalytic performance was evaluated. Under light irradiation, Fe/Cu-CMF significantly enhanced dye degradation, achieving a decolorization rate of 95.6% in 50 min. The catalyst exhibited optimal activity at pH 3.0 and maintained high efficiency over five consecutive reuse cycles, with the decolorization rate consistently at 95% without significant loss of activity. The research indicates that Fe/Cu-CMF materials are highly promising for use in technologies aimed at treating organic dye wastewater.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Meng Qiao,Yan-Fei Mu,Ji-Li Zhou,Su-Xian Yuan,Meng-Ran Zhang,Min Zhang,Tong-Bu Lu
Cu optimizes Co 3 O 4 d-orbital occupancy for symmetry-matched interactions with N 2 and CO 2 . • Cu-Co 3 O 4 reduces C − N coupling barrier from 2.34 to 1.19 eV. • Cu-Co 3 O 4 exhibits superior performance, ranking among the highest reported for photocatalytic urea synthesis. Photocatalytic CO 2 /N 2 co-reduction to urea is a green route for carbon‑nitrogen cycle closure, yet it is severely limited by the disparate orbital symmetry requirements of CO 2 /N 2 that impede synergistic activation on a single catalyst. Herein, Co 3 O 4 is doped with Fe/Cu/Ni to tailor the d -orbital configuration of its active sites, and Cu-Co 3 O 4 emerges as the optimal catalyst. It delivers a high urea yield of 25 μmol g −1 h −1 and a solar-to-urea conversion efficiency of nearly 0.035%, which ranks among the top efficiencies for photocatalytic urea synthesis. In situ diffuse reflectance infrared Fourier transform spectroscopy identifies *N 2 CO as the key reaction intermediate, while projected density of states calculations reveal that Cu 2+ ( d 9 ) optimizes d orbital occupation of catalyst to realize symmetry-matched adsorption of CO 2 /N 2 and strengthen orbital coupling. Density functional theory calculations further demonstrate that *N 2 CO formation is the rate-limiting step for urea synthesis, with Cu-Co 3 O 4 lowering the C − N coupling barrier to 1.19 eV (vs. 2.34 eV for pristine Co 3 O 4 ). This work establishes orbital symmetry matching between the d -orbitals of catalytically active sites and the π orbitals of reactants as a critical determinant for the selectivity of multi-molecule co-reduction reactions, thereby providing a general design principle for the development of high-performance photocatalysts. A Cu-doped Co 3 O 4 photocatalyst is rationally engineered, where incorporated Cu 2+ ( d 9 ) optimizes the occupation of active d xy / d xz orbitals in Co 3 O 4 , enabling symmetry-matched interactions with CO 2 and N 2 and reducing the C − N coupling barrier. This catalyst achieves a high urea yield of 25 μmol g −1 h −1 and a solar-to-urea conversion efficiency of ~0.035%, ranking among the top-performing systems for photocatalytic urea synthesis to date. Download: Download high-res image (115KB) Download: Download full-size image
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高影响因子
JOURNAL OF RARE EARTHS
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2026
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IF 9.6
Siqi Liu,Zhaoliang Wu,Yuanrui Li,Jun Yu,Lei Zhang
Electrocatalytic CO 2 reduction reaction (CO 2 RR) provides a sustainable route for transforming CO 2 into value-added chemicals, yet achieving controllable selectivity remains a major challenge. Here, we constructed Ce-rich and Cu-rich Ce-Cu interfaces (CeCu 0.55 O x and CeCu 2.67 O x ) to elucidate the interfacial regulation of CO 2 RR pathways. CeCu 0.55 O x delivers a CH 4 Faradaic efficiency (FE) of 45% at –400 mA/cm 2 , whereas CeCu 2.67 O x achieves over 50% FE toward C 2 products. Operando Raman measurements reveal comparable Cu oxidation states during CO 2 RR, indicating that interfacial composition rather than Cu valence dominates selectivity. The Ce-rich interface accelerates H 2 O dissociation, increasing *H coverage and promoting sequential hydrogenation of *CO to CH 4 . In contrast, the Cu-rich interface strengthens *CO adsorption and increases its surface coverage, steering C−C coupling toward *OC-CO and enabling C 2 product formation. This work clarifies how tuning the Ce/Cu ratio modulates *H and *CO intermediate coverages, providing a mechanistic basis for designing oxide-metal interfaces with programmable CO 2 RR selectivity.
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高影响因子
CERAMICS INTERNATIONAL
·
2026
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IF 6
Lang Ge,Tianshun Xiong,Yingchao Wei,You Li,Wenyuan Ma,Anguo Cui,Dongjie Liu,Min An,Yubo Luo,Junyou Yang
The AlN/Cu composite substrate is promising for power electronic packaging. However, the large coefficient of thermal expansion (CTE) mismatch among AlN, Cu, and AgCuTi fillers generates high residual stresses, undermining joint reliability. We design AgCuTi/FeZr 2 fillers to lower the CTE of the brazed seam in AlN/Cu joints. Results show that FeZr 2 doping improves joint performance, raising the shear strength to 124.0 MPa at 5 wt.% (≈83% above the undoped joint) and enhancing thermal-shock resistance. Turner-model calculations and finite-element analysis indicate that FeZr 2 lowers the CTE of the composite filler and thus reduces the interfacial residual stress. Microstructure reveals that excessive FeZr 2 results in pronounced thinning and local discontinuity of the TiN reaction layer by reducing the availability of active titanium ([Ti]) involved in the interfacial reaction. These findings demonstrate that AgCuTi/FeZr 2 fillers provide an effective route to low-stress, high-reliability AlN/Cu brazed substrates when the FeZr 2 content is kept at an appropriate level.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Xiaoya Yuan,Lei Ouyang,Zhou Song,Xuelin Dong,Zhenli Zhu,Qin Shuai,Shenghong Hu
Perfluoroalkyl and polyfluoroalkyl substances (PFAS) present a serious risk to ecosystems and human health, underscoring the need for highly sensitive detection methods. Existing analytical approaches often lack the portability and rapid response required for on-site screening, and conventional surface-enhanced Raman spectroscopy (SERS) substrates exhibit limited affinity toward hydrophobic PFAS molecules. To overcome these limitations, we designed a superhydrophobic nano-Cu modified Ag foam that integrates hydrophobic enrichment with specific metal-carboxylate coordination for effective perfluorooctanoic acid (PFOA) capture and detection. The critical role of Cu 2+ as a bridging site for selective PFOA adsorption was elucidated. This design achieves a remarkably low detection limit of 0.1 μg L −1 for PFOA and enables discrimination between different PFAS categories. Moreover, it maintains excellent SERS activity after two months of storage, effectively addressing the issue of facile oxidation of Cu. The substrate was successfully applied to detect PFOA in various real water samples, demonstrating its potential as a practical and powerful platform for environmental PFAS monitoring.
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PubMed
高影响因子
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