Journal of Water Process Engineering
·
2026
·
IF 6.6
Chuantao Wang,Wenhui Shi,Wangchuan Zhu,Shiwang Wang,Xiuyao Chang,Qi Wang,Wenlin Zhang,Wenjing Wang,Mimi Liu,Chunming Yang
Ag doping improves piezoelectric field and PMS/O 2 adsorption and activation. • The faster charge transfer of 2-Ag/MoS 2 boosts pollutant degradation activity. • PVDF membranes solve the recovery and reusability issues of powder catalysts. The integration of piezocatalysis with persulfate-based advanced oxidation processes holds substantial potential for pollutant remediation, yet its practical efficacy is often plagued by the limited piezoelectric field strength and low affinity of peroxymonosulfate (PMS). Herein, silver-doped layered molybdenum disulfide (Ag/MoS 2 ) was used to degrade pollutants by piezo-promoted PMS activation. The experimental results and theoretical calculations of adsorption energy, density of states (DOS) and electron localization function (ELF), clarified that Ag doping in MoS 2 plays a triple role in promoting the activation of piezoelectric driven PMS: Firstly, Ag doping can effectively improve the piezoelectric polarization field of the material. Secondly, it facilitates the adsorption and activation of oxygen-containing species such as PMS and O 2 by the catalyst. Thirdly, Ag acts as active sites and participates in the generation of reactive oxygen species (ROS). The synergistic effect promoted charge separation and reaction kinetics, significantly accelerating the activation of PMS and improving the degradation efficiency of ORZ. Furthermore, combined with the Fukui function calculations and liquid chromatography-mass spectrometry (LC-MS) measurements, the potential degradation pathways of ORZ during the reaction process were systematically revealed. Under ultrasonic (US) conditions, the piezoelectric catalytic degradation rate of ORZ (0.066 min −1 ) on the optimally Ag-doped MoS 2 was about 41 times higher than that of the sole PMS system and 5.5 times higher than that of bare MoS 2 . Furthermore, this catalyst enabled the efficient removal of various dye and antibiotic contaminants, including carbamazepine (CBZ), methylene blue (MB), and tetracycline (TC). Meanwhile, PVDF composite catalytic membranes were successfully fabricated in this study, which solved the critical problem of difficult recovery and reusability of powder catalysts. This new strategy can significantly enhance piezo-promoted PMS activation, providing important insights for the removal of pollutants.
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124114
·
IF 7.5
Xu Li,Yifang Zhang,Qiao Xia,Jiye Fan,Huaxiang Lin,Rusheng Yuan,Jinlin Long
In this study, an Ag/CuV 2 O 6 composite was constructed by loading Ag NPs onto CuV 2 O 6 nanowires through a sodium borohydride reduction method. The introduction of Ag NPs significantly enhanced the photocatalytic antibacterial effect of CuV 2 O 6 . Specifically, the material exhibited the optimal photocatalytic antibacterial performance when the Ag loading was 3%. During the antibacterial process, as the illuminated time increases, the membrane structure of bacteria is gradually impaired, and intracellular contents including K + , RNA, and proteins are gradually leaked out, ultimately resulting in bacterial inactivation. EPR and free radical scavenging experiments have confirmed that reactive oxygen species (ROS), including singlet oxygen ( 1 O 2 ) and superoxide anion radicals (·O 2 - ), generated via photocatalysis, are the main factors in killing bacteria. As an excellent electron transporter, Ag effectively promotes the separation of electron-hole pairs in CuV 2 O 6 , enhances the generation efficiency of ROS, and thereby improves the photocatalytic antibacterial activity. To address the limitation of photocatalysis requiring continuous light irradiation, the long-afterglow fluorescent material ZnGa 2 O 4 :0.5%Tb 3+ was further introduced. Under intermittent light irradiation, the material stores energy upon excitation by the light source. After the light irradiation is terminated, it continues to activate the Ag/CuV 2 O 6 composite, allowing the generation of ROS even in the dark and thus achieving a delayed antibacterial effect. This study provides a new strategy to reduce the dependence of photocatalytic antibacterial technology on continuous light sources.
✓ 已验证
产品关联
DOI
高影响因子
Waste and Biomass Valorization
·
2026
·
IF 3.1
Huang Yue,Li Lifeng,Ruan Tao,Ouyang Xinping
The catalytic conversion of lignin derivatives into specific chemicals represents a key pathway for achieving high-valued utilization of biomass. A new Ag–Co 0 /Fe 0.04 Co 0.96 O catalyst was constructed for the selective demethoxylation of vanillic acid derived from lignin depolymerization to produce p-Hydroxybenzoic acid. Compared to Ag–Co 0 /CoO, Fe doping suppressed Co reduction, endowing the Ag–Co 0 /Fe 0.04 Co 0.96 O catalyst with suitable hydrogenation activity and more abundant acidic sites. The hydrogen spillover effect inhibited decarboxylation, dehydroxylation, and benzene ring hydrogenation during the demethoxylation reaction. Oxyphilic Fe species changed the adsorption geometry of vanillic acid from parallel adsorption into twist configuration, avoiding the hydrogenation of benzene ring, and thereby improving the demethoxylation selectivity to p-Hydroxybenzoic acid. By optimizing catalyst preparation and reaction conditions to minimize decarboxylation and over-hydrogenation byproducts, the Ag–Co 0 /Fe 0.04 Co 0.96 O catalyst contributed to a 98.52% conversion of vanillic acid and a 89.62% selectivity to p-Hydroxybenzoic acid under 0.4 MPa H 2 , 0.4 MPa CO 2 at 220 °C for 2 h. This research provided a theoretical foundation and practical guidance for the catalytic demethoxylation of phenolic acids, offering new insights into high-valued utilization pathways for biomass. Graphical
✓ 已验证
产品关联
DOI
高影响因子
Foods
·
2026
·Vol. 15
·期 15
·2701
·
IF 6
Yadi Yuan,Jingming Zhou,Hongliang Liu,Haili Wang,Yanhua Qi,Enping Liu,Yongxin Li,Aiping Wang
In recent years, food safety concerns associated with veterinary drug residues have aroused significant public attention, highlighting the critical need for continuous monitoring in both animal-derived foods and the environment to safeguard public health. Medroxyprogesterone acetate (MPA), a major anabolic steroid widely used in animal husbandry, poses potential human health risks according to recent studies. Although conventional analytical techniques based on chromatography and immunological assays are effective, they often suffer from complex operations, the need for skilled personnel, high cost, and time consumption. To overcome these limitations, electrochemical immunosensors modified with advanced nanomaterials offer a promising alternative. Herein, a highly sensitive electrochemical immunosensor was developed for trace MPA detection utilizing core–shell SiO2-PEI@Ag nanoparticles as the sensing matrix. In this nanocomposite, the structural synergy between the SiO2core and outer Ag NPs shell not only provides a high-density platform for specific antibody immobilization, but also drastically expands the electroactive surface area and accelerates electron transfer to maximize signal amplification. Benefiting from these synergistic advantages, the constructed immunosensor exhibited a limit of detection (LOD) of 0.014 ng/mL and a wide linear range of 0.03–100 ng/mL. Furthermore, the recovery rates in pork and milk samples were 91.32–97.29% and 95.14–102.54%, respectively. In addition, negligible cross-reaction was observed toward structurally related steroid hormones related to MPA and common antibiotics. The immunosensor shows good stability, reproducibility, and accuracy, demonstrating great potential as a promising candidate to complement conventional tools for future MPA residue screening.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Inorganics
·
2026
·Vol. 14
·期 7
·188
·
IF 3.4
Haocheng He,Boya Ma,Haozhe Sun,Zimeng Li,Huixu Liu,Wenshi Zhao,Naveen Reddy Kadasala,Bo Feng,Yang Liu
The persistent accumulation of tetracycline (TC) antibiotics in aquatic environments poses severe ecological and public health risks, necessitating the development of multifunctional platforms capable of simultaneous detection and degradation. Herein, we report magnetically recoverable plasmonic Fe3O4/Cu2O-Ag nanocomposites (NCs) that integrate visible-light-driven photocatalysis with ultrasensitive surface-enhanced Raman scattering (SERS) detection. Hierarchical flower-like Fe3O4nanocrystals were employed as magnetic supports, followed by in situ growth of Cu2O nanocrystals and controlled deposition of Ag nanocrystals. The optimized composite (FCA-2) exhibited enhanced visible-light absorption (Eg= 1.86 eV), suppressed electron–hole recombination, and improved photocurrent response, which were attributed to Schottky barrier formation at the Cu2O-Ag interface and localized surface plasmon resonance (LSPR) effects. Under simulated solar irradiation, FCA-2 NCs achieved 91.79% degradation of TC within 60 min, following pseudo-first-order kinetics (k = 20.37 × 10−3min−1). Finite-difference time-domain (FDTD) simulations revealed that optimal Ag loading maximized plasmonic “hot spot” density, thereby enhancing electromagnetic field intensity and SERS performance. The FCA-2 substrate enabled ultrasensitive TC detection with a limit of detection of as low as 10−10M. Moreover, the superparamagnetic Fe3O4core allowed for rapid magnetic separation and sustained performance over multiple SERS–photocatalysis cycles, with negligible signal attenuation after 30 days. This work presents a rational strategy for constructing plasmonic magnetic NCs that synergistically couple photocatalytic remediation, ultrasensitive sensing, and magnetic recyclability, offering significant potential for integrated environmental monitoring and sustainable water treatment applications.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES COMMUNICATIONS
·
2026
·
IF 8.6
Tongtao Zhi,Xuegang Wang,Pengcheng Zhang,Jian Wang,Yaqi Yang,Hongji Duan
PPS-PPTA-Ag laminated films were fabricated for durable EMI shielding. • Ag-metallized PPTA fabric forms a continuous conductive textile network. • PPS encapsulation enhances structural integrity and environmental stability. • The composite delivers 64.3 dB EMI SE with excellent shielding durability. • Rapid and stable low-voltage Joule heating is enabled by the Ag network. The growing demand for lightweight and portable electronic products is driving the development of electromagnetic interference (EMI) shielding materials with superior and stable shielding effectiveness (SE). Herein, silver (Ag)-metallized poly (p-phenylene terephthalamide) (PPTA) fabric/poly (phenylene sulfide) (PPS) laminated films were fabricated by polydopamine-assisted electroless Ag deposition and hot pressing for durable EMI shielding. The Ag coating transformed insulating PPTA fabric into a continuous conductive textile network, while PPS encapsulation endowed the composite with thermal stability, solvent resistance, and structural protection. The resulting PPS-PPTA-Ag film exhibited a high EMI SE of 64.3 dB in the X-band, with only a 0.6 dB decrease after 1000 bending cycles. It also retained a high SE of 62.9 dB after flame exposure and showed negligible degradation after 7 days of immersion in acidic solution, alkaline solution, and common organic solvents. Moreover, the laminated film demonstrated excellent tensile strength (∼335 MPa) and improved tribological performance. Benefiting from the continuous Ag conductive network, it enabled rapid low-voltage Joule heating, reaching 91.2 °C within 50 s at 2.0 V, along with stable cyclic and long-term electrothermal performance. These results indicate that the PPS-PPTA-Ag composite film shows great potential for durable EMI shielding and electrically driven thermal management applications.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Optical Materials
·
2025
·
IF 3.8
Xiaolong Yin,Tong Shi,Jiacheng Li,Yu Wang,Jizhe Song,Hongyan Zhao,Zhixiu Wang,Cuixia Bi
In this work, Au@Ag nanostars were successfully synthesized via a seed-mediated growth method, using presynthesized Au nanostars as structural templates. The structure of the Au@Ag nanostars can be precisely controlled by adjusting the concentration of AgNO3 and Au nanostar seeds. The structural configuration of the Au@Ag nanostars can be precisely tuned from partially encapsulated cores to fully encapsulated architectures. The Au@Ag nanostars display tunable localized surface plasmon resonance (LSPR) characteristics in response to changes in the Ag shell thickness. The Raman enhancement of 4-ATP indicates that surface-enhanced Raman spectroscopy (SERS) performs optimally when Ag fully encapsulate the Au nanostars, confirming the results from FDTD theoretical simulations. The remarkable sensitivity of SERS detection originates from the enhanced electromagnetic fields generated at both the nanogaps and branched ends of the Au@Ag nanostars, coupled with their optimized LSPR characteristics. The detection limit achieved an exceptionally low level of 10–15 M. Effective detection of pesticides such as thiram and carbaryl was also achieved. The structural configuration of the Au@Ag nanostars fully leverages the synergistic effects between Au and Ag, along with the nanogaps, to significantly enhance the sensitivity and stability of SERS detection. This study provides theoretical and experimental references for plasma metal nanostars with significantly enhanced electromagnetic fields and offers insights for future SERS studies.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Yuteng Hang,Rusha Gopali,Xiaorong Mao,Ling Zhu,Mengyang Tao,Guangjie Gu,Feng Li,Zhangxuan Liu,Xinnan Li,Ruyu Jiang,Xinxin Xu,Ning Bao,Yang Liu
Elevated cholesterol is a major cardiovascular risk factor, but current detection methods are resource-intensive. Non-invasive point-of-care testing is promising yet limited by sensitivity, and the blood-saliva cholesterol correlation requires further investigation. We developed an electrochemical biosensor featuring cholesterol oxidase immobilized on screen-printed carbon electrodes (SPCE) modified with conductive Au-Ag@Au core-shell nanoparticles and Prussian blue/poly-3,4-ethylenedioxythiophene (PB-PEDOT) nanocomposites. Morphological, spectroscopic, and electrochemical analyses (including impedance spectroscopy, heterogeneous electron transfer kinetics, and active surface area quantification) confirmed the biosensor superior conductivity. The biosensor achieved exceptional performance: a broad linear range (0.01–1.0 mM), low detection limit (3.3 μM amperometric LOD; 2.8 μM via EIS), and high sensitivity (57.3 μA/mM·cm 2 amperometric; 781 Ω/mM·cm 2 impedimetric). Clinical validation demonstrated excellent agreement with standard colorimetric methods in human serum and saliva for cholesterol tested in biological compounds and robust stability. A strong serum-saliva correlation (Pearson's correlation coefficient as 0.928) supports noninvasive monitoring feasibility. The anti-interference capability of the proposed biosensor was evaluated against common interferents, including glucose, lactic acid, uric acid, ascorbic acid, bovine serum albumin, cysteine, and their mixture. The results confirmed its high specificity against these typical biological matrix components. Particularly significant is its non-invasive detection capability, which eliminates the need for painful blood draws or invasive sample collection procedures. A key innovation lies in the synergistic integration of conductive Au-Ag@Au core-shell nanoparticles with PB-PEDOT nanocomposites on SPCEs, which significantly enhances electron transfer and catalytic activity, yielding an exceptionally sensitive and stable sensing platform. The biosensor sets itself apart by achieving superior analytical performance concurrently with robust clinical validation in both serum and saliva, firmly establishing its potential for reliable non-invasive cholesterol monitoring.
✓ 已验证
产品关联
DOI
高影响因子
PHYSICA SCRIPTA
·
2025
·Vol. 100
·期 10
·105607
·
IF 2.6
Xiaolong Song,Yafang Pan,Shi Wang,Peng Wang,Mingli Wang
Compared with single-metal materials, bimetallic materials exhibit superior oxidation resistance and stability. The Surface-enhanced Raman Scattering (SERS) performance can be effectively modulated by adjusting the concentration of the precursors. Herein, Fe3O4@EDTA@Ag-Cu NPs were successfully synthesized, the SERS performance of the substrate was significantly enhanced by modulating the concentration of the silver and copper precursors. The results indicated that the SERS sample prepared by mixing the dispersion of Fe3O4@EDTA@Ag-Cu NPs with Rhodamine 6G(R6G) solution at a 1:2 volume ratio, achieved a detection concentration as low as (1.0 ± 0.2) × 10−10 M for R6G. Furthermore, the substrate demonstrated high sensitivity, uniformity, temporal stability, reproducibility, and the capability for the rapid detection of benzimidazole in strongly alkaline conditions.
✓ 已验证
产品关联
DOI
高影响因子
FOOD CONTROL
·
2025
·
IF 6.3
Shanshan Xue,Limei Yin,Lixin Ma,Heera Jayan,Usman Majeed,Hesham R. El-Seedi,Xiaobo Zou,Zhiming Guo
As a major contaminant in apples, patulin (PAT) poses a significant threat to human health and the economy. Establishing highly sensitive and accurate quantitative detection methods for PAT is crucial for ensuring food safety and protecting consumer health. Herein, a competitive ratiometric surface-enhanced Raman spectroscopy (SERS) aptasensor was fabricated. 4-Mercaptobenzoic acid (4-MBA) was embedded as an internal standard (IS) within a gold-silver core-shell structure, later assembled onto Fe 3 O 4 nanoparticles and coupled with complementary aptamer strands to form magnetic probes. Additionally, an aptamer targeting PAT and the Raman reporter molecule 5,5′-Dithiobis-(2-nitrobenzoic acid) (DTNB) were anchored onto gold bipyramids (AuBPs), creating reporter probes. The recognition and binding of the target PAT to the aptamer led to the detachment of the reporter probe after magnetic separation, reducing the DTNB signal. Thus, the ratio of SERS peak intensities (I DTNB /I 4-MBA ) quantified PAT demonstrated a linear range of 0.1–200 ng/mL and a limit of detection (LOD) of 0.070 ng/mL. The implementation of magnetic separation significantly streamlined the sensor fabrication process, whereas the ratiometric strategy substantially enhanced the reproducibility and stability of PAT detection. Furthermore, this method was successfully applied to the determination of PAT in apples and their products, showing potential for practical applications in food safety.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Longwen Chen,Libing Guo,Yingxi Wei,Guijing Xiao,Feng Liu,Yanwu Chen,Xiaojing Jin,Yongyang Zhu,Haowei Huang,Yifan Lin
In this study, the dynamic behavior of oxygen species in Ag/CeMnO x composite oxides and their promotional effects on catalytic soot combustion were investigated. By combining in-situ XRD with multi-scale characterization techniques, the mechanism underlying the Ce-Mn synergistic effect is elucidated in the formed Ce-Mn solid solution. A series of Ag-loaded composite oxides with varying Ce:Mn molar ratios were prepared via a hydrothermal method, and it was found that the Ag/Ce8Mn2 catalyst achieved a soot half-conversion temperature (T 50 ) below 300 °C (T 50 = 295 °C), significantly outperforming Ag-loaded single-metal catalysts. Furthermore, the presence of NO and H₂O improved catalytic activity by generating oxidative intermediates and enhancing interfacial wettability. Notably, the Ag/Ce8Mn2 catalyst retained 95 % of its initial performance after five cycles, demonstrating excellent stability. XPS, H₂-TPR, O₂-TPD and Raman spectroscopy analyses revealed that an appropriate Mn doping induced abundant oxygen vacancies in the CeO₂ lattice, enhancing the active oxygen species generation and lattice oxygen activation. In-situ XRD directly observed the outward diffusion of oxygen ions from CeO₂ during the reaction, confirming the mobility of surface/bulk lattice oxygen and the oxygen replenishment mechanism facilitated by Mn-O-Ce bridge bonds, driving efficient soot oxidation. This study elucidates a synergistic regulation strategy for oxygen vacancy density and lattice oxygen mobility, providing theoretical support for the development of efficient and durable soot oxidation catalysts.
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2026
·
IF 10.4
Qiulan Li,Jiahe Dai,Yaling Yang,Linqian Hou,Hong Li
In this study, an “off” signal chemiluminescence (CL) sensor was designed for the detection of glyphosate (Gly) based on Cu-CDs/ABEI@Ag as CL enhancers. Copper-doped carbon dots (Cu-CDs) was synthesized through a sample microwave digestion approach, and AgNO 3 was reduced to silver nanoparticles (AgNPs) utilizing N-(4-aminobutyl)-N-ethylisoluminol (ABEI) and prepared Cu-CDs as mild reducing agents. The Cu-CDs and AgNPs demonstrated peroxidase (POD)-like properties, facilitating the breakdown of H 2 O 2 into reactive oxygen species (ROS) such as ∙OH, ∙O 2 − , and 1 O 2 to generate CL signal. By integrating ABEI into the catalyst system, the CL reagent became concentrated within the catalyst structure, minimizing the spatial separation between the catalyst and ABEI, thus amplifying the CL response. Notably, Gly can inhibit POD-like activity by interaction between Cu-CDs/ABEI@Ag and Gly, thus decrease the CL intensities produced from oxidation of ABEI. Based on this highly sensitive “off” response in CL, a CL nano-sensor was developed for Gly detection, achieving a detection limit of 3.87 μg/L. Furthermore, satisfactory spiked recovery rates (95.86–111.13%) were obtained in coffee samples, highlighting the sensor's promising applicability for on-site Gly monitoring.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）