JOURNAL OF CATALYSIS
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2026
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IF 6
Nannan Chen,Lianqing Yu,Chong Liu,Zhe Li,Xiaohan Jin,Yaping Zhang,Haifeng Zhu
The efficiency of solar-driven water splitting has long been constrained by the poor utilization of the full-spectrum solar energy by semiconductors. This study leverages the localized photothermal effect of polydopamine (PDA)-mediated plasmonic Ag nanoparticles (NPs) to activate small-polaron hopping conduction in fluorinated BiVO 4 . This activation enhances light absorption and photoelectrochemical (PEC) performance. Experimental evidence indicates that fluorination optimizes both bulk properties and surface wettability. Concurrently, the PDA acts as a multifunctional interfacial layer, ensuring robust adhesion of Ag NPs and serving as an effective hole-transport medium. The synergistic photothermal effect of the intrinsic broadband absorption from PDA and the localized surface plasmon resonance (LSPR) from Ag NPs endows the photoanode with a photocurrent density of 4.96 mA cm −2 at 1.23 V RHE , photo-stability exceeding 10 h, and enhanced light-harvesting capability. Further mechanistic studies unveil that fluorination induces the elongation of local chemical bonds, facilitating reducing the reaction energy barrier. Notably, the loading of PDA@Ag photothermal layer introduces valence band tail states, which effectively narrow the bandgap and accelerate hole transfer. This work offers a novel paradigm for pioneering utilization of photothermal materials to convert thermal energy dissipation into a valuable resource for enhancing PEC performance.
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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
Zeshuai Zhang,Miao Yu,Yuhang Wang,Yiming Wang,Zhuo Ma,Shaoqin Liu,Yunfeng Qiu
The clinical longevity of dental restorations is fundamentally constrained by a critical trade-off where mechanically robust materials typically lack intrinsic biological defense, whereas bioactive composites often suffer from structural degradation. To reconcile this conflict, we constructed a hierarchical nanocomposite that mimics the structural logic of natural enamel. The design centers on engineering a silver-functionalized amorphous zirconia (Ag@ZrO 2 ) coating to serve as a bioactive Amorphous Intergranular Phase (AIP) bridging aligned hydroxyapatite (HA) nanowires. Synthesized via bidirectional freeze-casting, this bioinspired composite effectively unifies mechanical resilience and biological activity. Its flexural strength reaches 111.2 MPa, with an elastic modulus of 77.8 GPa, achieving a 91% improvement over the control group. This performance closely matches natural tooth enamel and surpasses standard dental resin materials. Crucially, the engineered Ag@ZrO 2 interface functions as a catalytic platform that delivers potent antibacterial action through a triple-synergistic mechanism involving peroxidase-mimicking reactive oxygen species generation, sustained Ag + release from AgCl, and bacterial glutathione depletion. This approach achieved 100% eradication of E. coli and S. aureus without compromising the structural integrity of the composite. These findings validate a scalable interface engineering strategy for creating “living” structural materials that actively prevent secondary caries.
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高影响因子
MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Yanying Rao,Binggui Wang,Hong Li,Xiaoying Ding,Kaiguo Liu,Xiaojuan Wang,Yue Li
Integrating β-CD-AgNPs and AuNSs arrays enables rapid, quantitative SERS sensing of antibiotic residues. • The system detects AMP, CIP, ENR, NFX individually and in mixtures with high sensitivity. • The combined substrate enabled accurate, applicable antibiotic detection in real waters. β-Cyclodextrin-functionalized Ag nanoparticles (β-CD-AgNPs) were synthesized via a one-step method and integrated with ordered Au nanoshells (AuNSs) arrays to construct a highly sensitive surface-enhanced Raman scattering (SERS) sensor for antibiotic detection. The specific dimensions of the β-CD-AgNPs enable selective binding, drawing antibiotic molecules into close proximity with the AgNPs surface. This proximity generates plasmonic hot spots, significantly amplifying the Raman signals. In this design, the β-CD-AgNPs serve a dual role as both the primary SERS substrate and an internal standard. A strong linear relationship was established between the concentration of antibiotics and the intensity ratio of the characteristic antibiotic peak to the β-CD-AgNPs peak. Based on this principle, we achieved sensitive detection of both individual antibiotics and their mixtures, and validated the method through spike-and-recovery experiments in environmental water samples. The calibration plots were established by linearly fitting the intensity ratio (antibiotic characteristic peak/internal standard peak) against the concentration of Ampicillin (AMP), Ciprofloxacin (CIP), Enrofloxacin (ENR), and Norfloxacin (NFX) solutions, all exhibiting excellent linearity (R 2 > 0.99), as well as for binary mixtures of CIP and AMP, with R 2 values of 0.9942 and 0.9953, respectively. The limits of detection (LODs) for these antibiotics ranged from 0.0827 to 0.3365 μmol·L −1 , and the limits of quantification (LOQs) ranged from 0.27 to 1.11 μmol·L −1 . The linear working ranges were 0.61–5.00, 0.55–12.00, 0.48–12.00, and 1.11–12.00 μmol·L −1 for AMP, CIP, ENR, and NFX, respectively. In environmental water samples, apparent recovery rates of individual antibiotics ranged from 98.84% (±0.03%) to 100.02% (±0.01%), with relative standard deviations (RSDs) between 1.32% and 4.92%. For CIP and AMP mixtures in similar samples, recoveries ranged from 98.53% (±0.01%) to 111.29% (±0.04%), with RSDs between 1.15% and 5.71%. These results demonstrate that the proposed SERS sensor enables efficient and accurate antibiotic detection, offering a viable approach for the rapid and highly sensitive monitoring of antibiotic contaminants in the environment. Download: Download high-res image (188KB) Download: Download full-size image
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Advanced Composites and Hybrid Materials
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2026
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IF 15.5
Chen Peng,Liang Yilong,Zhang Hui,Peng Guigui,Ren Xianli
Rapid electrification and renewable-energy infrastructure expansion demand copper materials simultaneously achieving high conductivity and robust structural performance. To address this, the study developed a strategy that couples a solution–solid displacement reaction with electrostatic self-assembly to construct hierarchical MXene/Ag@Cu composite powders, thereby achieving dual molecular-level compositing of Ag and MXene. During sintering, the Ag formed a continuous strip-like Ag phase within the Cu matrix, thereby establishing efficient dual pathways for electron and mechanical conduction, as confirmed by both microstructure characterization and finite element simulation. The first-principles analyses further revealed that Ag acts as an interfacial coupling element, effectively bridging self-lubricating MXene nanosheets with the Cu matrix, thereby enhancing electron transport, load-bearing capacity, and tribological performance. Furthermore, the Ag–MXene architecture was shown to construct a robust physicochemical barrier. Thermophysical measurements indicated its role in managing frictional heat, while first-principles simulations revealed its high energy barrier against O diffusion, collectively mitigating oxidative wear. Benefiting from multiscale synergistic reinforcement, the Cu-matrix composite simultaneously achieved high conductivity (96.3% IACS), excellent strength (354.3 MPa), and an ultralow wear rate (1.72 × 10 − 6 mm 3 N -1 m -1 ). These results demonstrate that the hierarchical Ag–MXene architecture successfully overcomes the conventional conductivity–strength–wear-resistance trade-off, offering a promising strategy for next-generation high-performance copper in advanced energy and industrial applications.
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ACS Sensors
·
2025
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IF 9.1
Dan Yu,Zhichao Zhu,Qiuhui Sheng,Ming Luo,Meng Zhang,Xuliang Ren,Canglong Xing,Tao Fu,Wei Fan,Dongzhen Chen
The addition sensing device of sweat to wearable biostress sensors would eliminate the need for using multiple gadgets for healthcare analysis. Due to the distinct package fashion of sensor interface for biostress and biomolecule, achieving permeability and multifunctionality in an integrated wearable sensor remains a formidable challenge. Here, a viscose fabrics (VCFs)@silver (Ag) sensing material and encapsulating strategy by multi-microporous membranes (M-MPM) are developed, and simultaneous detection for muscle strain and molecule biomarkers in sweat (glucose, lactate, uric acid) is realized. The package interface exhibits good breathability, directional, and fast sweat transport without interception due to its wetting gradient enabled by the 3D-stacking for VCFs@Ag and M-MPM, which subjoins sensing function of sweat on the biostress sensing platform. And, the filtration effect of M-MPM can resist the pollutant interference to the hand-held surface-enhanced Raman scattering spectrum on skin surface. Then, a bidirectional memory network is constructed to correct for the changes in electrical conductivity of VCFs@Ag under the influence of sweat infiltration. With the help of a machine learning pipeline, the accuracy of multimodal recognition increased to 88.6%. As proof of concept, the package interface of M-MPM/VCFs@Ag provides the feasibility of simultaneous monitoring of the muscle strain and sweat with a single sensor.
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高影响因子
Journal of Materials Chemistry C
·
2025
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IF 5.1
Xiuping Li,Te Hu,Na Li,Zhihuan Weng,Lishuai Zong,Siyuan Dong,Xiaolin Zhang,Cheng Liu
The challenge in environmental pollution urgently demands sustainable and green materials as new material candidates for electrochemical sensors. In this study, bamboo derived from abundant and renewable resources is considered as a functional and sustainable substrate material for electrochemical sensor. Novel bn-Ag@PPy/BC electrochemical sensor is prepared by in-situ polymerization of polypyrrole (PPy) on bamboo chips (PPy/BC) then electrochemical deposition of dendric nano Ag on PPy/BC. Various structural characterizations of bn-Ag@PPy/BC indicate that bamboo chips are encased by PPy and dendric nano Ag were homogeneously distributed on the PPy/BC. The bn-Ag@PPy/BC shows high sensitivity as 205 μA mM−1 cm−2 with good linearity in the formaldehyde concentration range of 0-4.5 mmol/L. Meanwhile, bn-Ag@PPy/BC presents high selectivity and excellent reproducibility (RSD=3.66%). Moreover, bn-Ag@PPy/BC exhibits excellent degradation properties with weight residual of 83.66% during 57 days’ degradation in soil, which is much better than some degradable materials. The bn-Ag@PPy/BC will be a promising candidate for cost effective, degradable, sustainable and environmentally friendly electrochemical sensor.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Jie Zhou,Xiaoyan Ma,Xiaozhe Zhang,Yaxian Chen,Ling Zhang,Yuan Gao,Qian Zhang,Lixin Xia
A reusable and self-calibrating Surface-Enhanced Raman Spectroscopy (SERS) substrate was developed for reliable detection and degradation of organic pollutants in complex environments. The substrate was fabricated by synthesizing Prussian blue (PB)-functionalized cotton (Cotton/PB), followed by Ag + ion exchange with Fe 3+ in the surface-bound PB and in situ reduction to form silver nanoparticles (Ag NPs). PB serves as an internal standard (IS) to correct SERS signal fluctuations and enables self-cleaning via photo-Fenton catalysis. The substrate exhibited high sensitivity, with detection limits for crystal violet (CV), rhodamine 6G (R6G), and malachite green (MG) of 4.6 × 10 −11 M, 9.2 × 10 −12 M, and 4.7 × 10 −11 M, respectively. IS calibration significantly improved quantitative precision, reducing the substrate uniformity relative standard deviation (RSD) from 13.59 % to 4.15 % and reproducibility RSD from 15.17 % to 3.33 %. Additionally, the substrate exhibited outstanding photo-Fenton degradation performance for R6G, achieving a 99 % removal rate within 120 min. The in situ growth of Ag NPs on the PB surface enhanced the photo-Fenton activity, increasing the rate constant of the Cotton/PB-Ag substrate by 2.1 times compared to Cotton/PB. Importantly, the platform maintained remarkable performance with a low RSD of 2.45 % after seven reuse cycles. This work offers a promising strategy for the consistent and precise detection of organic contaminants in environmental monitoring applications.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Min Chen,Wenhao Pang,Ziyuan Zhao,Ning Cai,Jumei Li
Surface-enhanced Raman scattering (SERS) has emerged as a highly effective technique for ultra-sensitive chemical analysis, enabling the detection of trace amounts of organic pollutants (OPs) through detailed spectral information. In this study, we propose a simple in situ deposition method to fabricate a hybrid SERS substrate combining graphite-phase carbon nitride (g-C 3 N 4 ) with Ag nanoparticles (Ag NPs). The size and distribution of the Ag NPs were finely tuned by adjusting the mass of AgNO 3 . The optimized g-C 3 N 4 /Ag composite exhibited excellent performance for SERS detecting methylene blue with a detection limit of as low as 2.81 × 10 −9 M. The enhanced SERS activity can be attributed to the plasmonic effect of the densely packed Ag NPs and the adsorption properties of g-C 3 N 4 . Furthermore, the substrate demonstrated excellent reproducibility, good uniformity and long-term stability. Additionally, when integrated with machine learning using a Random Forest algorithm, the system accurately identified four similar OPs—methylene blue, crystal violet, rhodamine 6 G, and thiram —with a classification accuracy of above 99.5 %. This work highlights the potential of combining SERS with machine learning for effective environmental and food safety monitoring.
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ANALYTICA CHIMICA ACTA
·
2026
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IF 6
Jiaxing Xie,Fan Ge,Xinyi Yan,Suyu Ren,Yan Wang,Feng Tan
Background The diffusion gradient in thin-films (DGT) device is widely used for in situ measurement of pollutants in aquatic environments, offering high enrichment efficiency and robustness to environmental variations such as temperature and hydrodynamics. These characteristics make DGT particularly suitable for monitoring a diverse array of trace organic contaminants in waters. However, long-term deployment is often compromised by biofilm formation on the sampling outer membrane, which can obstruct analyte diffusion and lead to underestimation of analyte concentrations. This study addresses the need for a biofouling-resistant DGT device that maintains accuracy during extended field applications. Results A novel DGT device incorporating an antifouling Ag/polydopamine-modified polyethersulfone (Ag/PDA-PES) membrane was developed. The modified membrane demonstrated dual functional improvements: a 40 % reduction in water contact angle, indicating enhanced hydrophilicity, and strong antimicrobial efficacy, evidenced by an inhibition zone of 1165 μm ± 110 μm against Escherichia coli , while maintaining diffusion characteristics comparable to the original PES membrane. In extended deployment in both simulated and natural waters, the Ag/PDA-PES membrane effectively inhibited biofilm formation and maintained stable analyte diffusion coefficients over time compared to the unmodified membrane. The DGT devices showed constant sampling performance across varying pH (5.0–9.0), ionic strength (0–200 mM NaCl), and dissolved organic matter levels (0–20 mg/L). Field validation confirmed the device reliability, with measured total antibiotic concentrations (692–1062 ng/L) consistent with grab sampling. Significance This work signifies a step forward in DGT passive sampling technology by integrating antifouling properties directly into the membrane, thereby enabling accurate long-term monitoring of pollutants in biofilm-prone waters. Moreover, this study provides a promising strategy for improving the reliability of long-term DGT sampling, with meaningful implications for the precise monitoring and ecological risk assessment of other emerging pollutants.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2018
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IF 3.235
Yue Li,Wanwan Li,Yanxiang Luo,Minhua Fang,Xiaolin Yao,Miao Shui,Jie Shu,Yuanlong Ren
K x Cu 1−x O 1−γ (0 ≤ x ≤ 0.12) and K 0.08 Cu 0.92 O 1−γ anode materials are synthesized via a simple ethylene glycol assisted sol-gel method and characterized by X-ray diffraction, Scanning Electron Microscopy, High-resolution/Transmission Electron Microscopy, Energy Dispersive Spectroscopy and Select Area Electron Diffraction . The introduction of potassium element improves the electro-chemical performance of CuO greatly, especially for x = 0.08. After Ag coating, K 0.08 Cu 0.92 O 1−γ @Ag anode displays superior electro-chemical performance with excellent reversible capacity, cyclic performance and rate capability. It delivers a capacity of 804.3 mA h g −1 even at the 50th cycle. The role played by the K element doping and Ag coating are fully discussed.
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SENSORS AND ACTUATORS B-CHEMICAL
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2017
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IF 5.401
Ping Chen,Aiwu Zhao,Jin Wang,Qinye He,Henghui Sun,Dapeng Wang,Mei Sun,Hongyan Guo
Surface plasmon-assisted catalytic reaction of p–aminothiophenol (P-ATP) to p-nitrothiophenol (P-NTP) on ultrasensitive magnetic Au@Ag nanoparticles (Fe 3 O 4 /Au@Ag NPs) has been observed by surface-enhanced Raman scattering (SERS). The as-prepared magnetic nanoparticles integrate magnetic and desired plasmonic on the same nanostructure, show great potential for simultaneous magnetic separation and SERS-based catalytic analysis. In acid media, high concentration of nitrite ion triggered the P-ATP molecules quickly transform into P-NTP on Fe 3 O 4 /Au@Ag NPs. These unique attributes enable in-situ SERS monitoring nitrite-triggered oxidation reactions of P-ATP to P-NTP and the subsequent NaBH 4 -drived reduction reactions of P-NTP to P-ATP on Fe 3 O 4 /Au@Ag could achieve under optimized condition. Moreover, this circulated reversible redox process could provide a circular and efficient approach to detection of nitrite ion. Considering this method without sample pretreatment and can circulate many times, indicating that it is a promising method in-situ fast detection nitrite ion.
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CHINESE JOURNAL OF CATALYSIS
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2026
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IF 17.7
Yi Ma,Huan Ge,Yong Zhang,Ning Jian,Jialing Tang,Zongkun Hu,Jing Yu,Jordi Arbiol,Canhuang Li,Luming Li,Andreu Cabot,Junshan Li
Waste plastics present a significant threat to ecosystems and human health, necessitating efficient and cost-effective solutions for their conversion into high-value products. This study introduces a novel electrochemical reforming strategy to upgrade polyethylene terephthalate (PET) into valuable chemicals, primarily formic acid, while simultaneously generating hydrogen. A highly efficient electrocatalyst composed of nano-arrays of silver and NiFe layered double hydroxide (LDH) is synthesized via a hydrothermal and photo-precipitation process on a nickel foam substrate. This advanced catalyst achieves selective electrochemical conversion of ethylene glycol (EG) as PET hydrolysate to formate and glycolate with Faradaic efficiencies of 85% and 13% at 1.5 V vs . the reversible hydrogen electrode, with a stable and high current density. Density functional theory calculations reveal that the synergistic interaction between Ag and NiFe-LDH optimizes the adsorption and desorption of key intermediates on the catalytic sites, resulting in superior activity, selectivity, and stability for the electrochemical EG oxidation reaction. These findings highlight the potential of this catalyst for sustainable plastic waste valorization and renewable hydrogen production.
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危险品化学品经营许可证（带存储）