INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Shiqiong Dai,Rui Cui,Hong Wu,Shuguang Wang,Yuyue Qin,Charles Brennan,Mingwei Yuan,Minglong Yuan
CMC/Ag-MOFs-CIN exhibited excellent mechanical and antioxidant capability. • CMC/Ag-MOFs-CIN exhibited controlled-release capability. • The film inhibited the growth of spoilage microorganisms in Lactifluus volemus . • The composite film can extend the shelf life of Lactifluus volemus . To extend shelf life of Lactifluus volemus, Ag@MOF loaded with cinnamaldehyde (CIN) was prepared and embedded into carboxymethyl cellulose (CMC) to develop antimicrobial films. The physicochemical properties of composite films were evaluated, along with their practical performance in Lactifluus volemus preservation. Compared with the CMC film, the CMC/Ag@MOF-CIN film exhibited better performance, including enhanced mechanical strength, barrier property, and antioxidant capacity, while showing reduced moisture content and water solubility. The CMC/6Ag@MOF-CIN composite film demonstrated 16.71% increase in tensile strength and 55.47% increase in elongation at break. The water vapour permeability decreased to 0.22 ± 0.01 g·mm/m 2 ·h·kPa, while oxygen permeability dropped to 18.67 ± 0.29%. Notably, antimicrobial and antioxidant properties improved by 68% and 45.49%, respectively. The composite films also exhibited controlled-release functionality. When applied to Lactifluus volemus preservation, the composite films effectively reduced weight loss, maintained higher activities of antioxidant enzymes, suppressed the activities of lipid peroxidation-related enzymes, and inhibited the growth of spoilage microorganisms. These findings demonstrated the potential of the CMC/Ag@MOF-CIN composite films as active packaging materials for Lactifluus volemus mushroom and other perishable foods.
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高影响因子
DYES AND PIGMENTS
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2026
·
IF 3.9
Juan Wei,Yilong Li,Xinyan Chen,Xing Zhou,Lu Li
A PBA/Rh6G ratiometric sensing platform was constructed by simple fluorophore mixing. • The system enabled sensitive Ag + detection with a LOD of 6.8 × 10 −14 mol L −1 . • Ratiometric readout improved repeatability and enabled reliable analysis of real water samples. The sensitive and accurate detection of silver ions (Ag + ) is of considerable significance for environmental monitoring and health risk assessment. To address the susceptibility of single-channel fluorescence detection to variations in probe concentration, excitation intensity, and sample matrix effects, a dual-channel ratiometric fluorescence sensing system for Ag + detection was constructed by directly mixing 1-pyrenebutyric acid (PBA) and rhodamine 6G (Rh6G). In this system, PBA served as the Ag + -responsive unit and exhibited a characteristic emission at approximately 400 nm under excitation at 328 nm, with its fluorescence intensity decreasing as the total Ag + concentration increased. Rh6G provided a relatively stable reference signal at approximately 578 nm, and the fluorescence intensity ratio I 400 /I 578 was used as the ratiometric response parameter. Suitable conditions for dual-channel detection were established by systematically optimizing the concentrations of PBA and Rh6G, the DMSO volume fraction, pH, and reaction time. The results showed a good linear relationship between the ratiometric fluorescence signal and the logarithm of the total Ag + concentration (R 2 = 0.992), with a detection limit as low as 6.8 × 10 −14 mol L −1 . Preliminary analysis of spiked campus lake water samples yielded recoveries ranging from 95% to 105%. Without requiring complex nanomaterial synthesis or multistep surface functionalization, this method provides a simple strategy for constructing ratiometric fluorescence sensing systems for Ag + detection. Download: Download high-res image (310KB) Download: Download full-size image
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2026
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IF 4.8
Xiaohui Ren,Kailai Zhang,Jiaying Dou,Yang Xu,Xinyu Liu,Wenjie Ma
The exploration of robust, sensitive, and reliable surface-enhanced Raman scattering (SERS) substrates is depend on the fabrication of high-density “hot spots”. An innovative SERS substrate was fabricated by integrating spherical Ag with multi-cavity metal-organic frameworks (MOFs). The immobilization of MOFs on the Ag surface significantly enhanced the enrichment efficiency of target molecules. Scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, and Brunauer-Emmett-Teller measurements were utilized to characterize the morphology, elemental composition, and crystal phase structure of the Ag/MOFs substrate. As anticipated, the adsorption behaviors of crystal violet (CV) and Congo red (CR) on the Ag/MOFs substrate were well fitted by the Freundlich adsorption isotherm, with a correlation coefficient (R 2 ) exceeding 0.98, indicative of a heterogeneous adsorption process on the substrate surface. The Ag/MOFs substrate achieved a minimum detection as low as 1.0 × 10 −10 mol L −1 for both CV and CR. Furthermore, a favorable linear relationship was observed between the SERS intensity and the negative logarithm of analyte concentration over the range of 1.0 × 10 −9 mol L −1 to 1.0 × 10 −4 mol L −1 . The enhancement factor of the Ag/MOFs substrate toward CV was determined to be 3.4 × 10 6 . Additionally, the Ag/MOFs substrate shows excellent uniformity and reliable signal reproducibility. Collectively, this work provides a promising strategy for the sensitive detection of organic pollutants in aqueous environment.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Kai Ren,Haojun Zhao,Rui Wen,Haozhe Shi,Yumin Wang,Yanyue Chen,Ruiting Hao,Chunning Zhao,Xiaoqing Qu,Xiang Wan,Weichao Wang
Humidity-induced deactivation severely limits room-temperature catalytic ozone decomposition by blocking active sites and retarding oxygen-intermediate turnover. Herein, an Ag/YMO (Ag/YMn 2 O 5 ) heterointerface catalyst is constructed for robust ozone decomposition under humid conditions, achieving near-complete O 3 conversion at 25 °C and 90% relative humidity (RH) under a weight hourly space velocity (WHSV) of 1,200,000 mL g −1 h −1 with stable operation. A confined-space filter test further verifies the device-level applicability of Ag/YMO for rapid ozone removal. Structural analyses confirm Ag particles anchored on YMO with partially oxidized Ag species at the particle surface. X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy (XAS) and ultraviolet photoelectron spectroscopy (UPS) reveal electron transfer from Ag-containing domains to adjacent Mn sites, producing an electron-rich Mn interface and a polarized surface. This interfacial polarization and the resulting local electric field repel highly polar H 2 O molecules through Coulombic interactions, thereby suppressing their adsorption on Mn-related interfacial active sites. Helium temperature-programmed desorption-mass spectrometry (He-TPD-MS), water contact-angle measurements, and in situ diffuse reflectance infrared Fourier-transform spectroscopy ( in situ DRIFTS) show that this interface weakens H 2 O retention on Mn-related sites and accelerates peroxide-intermediate conversion. This work highlights electron-rich metal–oxide heterointerfaces as an effective route to humidity-tolerant ozone decomposition catalysts.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Jian Liu,Jianyi Song,Na Liu,Qiao Lan
A pump-free, stable and efficient aerogel reactor with abundant pores is designed using Ag-loading cellulose Pickering emulsions as a template for the continuous flow catalytic reduction of 4-nitrophenol. The fabrication of the aerogel reactor entails the two-step oxidation synthesis of aldehyde-functionalized cellulose nanocrystals (ACNC), the in-situ reduction of Ag nanoparticles (NPs) on them to form Ag@ACNC, the utilization of this material to stabilize a Pickering emulsion for preparing the hydrogel, and finally the freeze-drying of the hydrogel laying on a fabric strip. The emulsion-templated aerogel features abundant pores with loading Ag NPs on inner walls, enabling reactant to flow through the pores rapidly under driving by its gravity and the capillary action of the supporting fabric strip and react on the walls. The aerogel reactor achieves efficient three-dimensional flow catalysis without an external power source and exhibits excellent conversion and stability. The conversion all remains above 91.8% during the continuous flow catalysis reaction of 6 cycles (totaling 72 h), and the conversion still reaches 94.4% at 12 h after storage in air for 60 days. This emulsion-templated aerogel reactor demonstrates great potential for advancing recyclable catalytic systems, thereby paving the way for its wide applications.
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高影响因子
Russian Journal of Physical Chemistry A
·
2025
·Vol. 99
·期 5
·991-1000
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IF 0.8
Ji Xiang,Zeng Lingyun,Wang Lingjuan,Wang Zhipeng,Zhu Hailong,Lu Yanzhen,Rao Richuan,Wang Fangkuo
— It is of great significance to prepare high-performance non-precious metal catalysts for hydrogen evolution from the ammonia borane (NH 3 BH 3 , AB). Here, a series of cost-effective and high-performing Ag–Co 3 O 4 nanocatalysts were prepared using AgNO 3 and Co(NO 3 ) 2 ⋅6H 2 O as precursors. The influence of varying doping amounts of Ag atoms (10 mg AgNO 3 , 20 mg AgNO 3 , 40 mg AgNO 3 , 60 mg AgNO 3 ) and heat treatment temperatures (300, 400, 500, 600°C) on the catalytic activity of the Ag–Co 3 O 4 nanocatalysts for AB hydrolysis was investigated. The obtained results reveal that the Ag–Co 3 O 4 nanocatalysts exhibit a well-defined nano-flower morphology with homogeneous distribution of silver atoms over the Co 3 O 4 surface. Moreover, an evident electronic synergy between Ag and Co 3 O 4 is observed. The 20-Ag–Co-500 catalyst (doped with 20 mg of AgNO 3 and subjected to heat treatment at 500°C) exhibits exceptional catalytic activity towards AB hydrolysis (TOF = 348.03 \({\text{mo}}{{{\text{l}}}_{{{{{\text{H}}}_{{\text{2}}}}}}}\) min –1 \({\text{mol}}_{{{\text{Ag}}}}^{{ - 1}}\) and E a = 56.20 kJ/mol).
研究领域:
材料科学
·
催化化学
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高影响因子
Micromachines
·
2023
·Vol. 14
·期 10
·
IF 3.4
Yongjun Zhang,Zhen Xu,Jiahong Wen,Xiaoyu Zhao,Renxian Gao,Yaxin Wang
Organized two-dimensional polystyrene bead arrays perform ion etching, and protruding nanostructures are created on polystyrene beads due to the shadow effects from the ring beads, leading to nucleus selection and growth in Au nanostructure deposition. Ag nanostructures are prepared via plasmon-mediated chemical reactions (PMCRs), leading to the Ag nanocavity geometry of the honeycomb pattern when the etching time and Ag growth time are tuned. Due to the strong electromagnetic coupling, the Ag honeycomb-shaped nanocavity array works as the SERS substrate with high sensitivity and good repeatability, which is used to detect thiram pesticide residues with a concentration down to 10−9M.
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高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2017
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IF 4.784
Haoran Li,Yurong He,Ziyu Liu,Baocheng Jiang,Yimin Huang
Plasmonics are applied to concentrate light at the nanoscale and are integrated into photothermal technologies to improve solar energy absorption. Here, we report a one-step synthetic route of super broadband Ag@TiO 2 core–shell nanoparticles under well-defined conditions using silver nitrate (AgNO 3 ) and titanium butoxide (TBT) in N , N -dimethylformamide as raw materials and hexadecyl trimethyl ammonium chloride (CTAC) as both an inducer and a protective agent. Transmission electron microscopy revealed that the prepared nanoparticles have well-defined core–shell structures. The intermediates and final product were further characterized by UV–vis absorption, which showed that the synthesized Ag@TiO 2 core–shell nanoparticles exhibit super broadband absorbance in the visible light range, and the surface plasmon resonance (SPR) peak can be systematically tuned between 414 and 499 nm. In addition, X-ray diffraction and energy-dispersive spectroscopy confirmed the compositions of the nanoparticles. The nanoparticles prepared under well-defined conditions, i.e., a TBT:AgNO 3 molar ratio of 3:1, CTAC concentration of 0.6 mM, temperature of 80 °C, and reaction time of 70 min, show an SPR peak at 474 nm, which is close to the maximum solar irradiation intensity and has great potential for promoting solar energy conversion.
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高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Qiongqiong Lu,Congcong Liu,Yehong Du,Xinyu Wang,Ling Ding,Ahmad Omar,Daria Mikhailova
Aqueous zinc-ion batteries (ZIBs) are considered as a promising energy storage system due to their low cost and high safety merits. However, they suffer from the challenge of uncontrollable dendrite growth due to a non-uniform zinc deposition, which increases internal resistance and causes battery failure. Herein, Ag coating fabricated by a facile surface chemistry route on zinc metal was developed to guide uniform zinc deposition. Ag-coated Zn shows improved electrolyte wettability, a small zinc deposition overpotential, and fast kinetics for zinc deposition/dissolution. Direct optical visualization and scanning electron microscopy images show uniform zinc deposition due to the introduction of Ag coating. As a result, the Ag-coated Zn anode can sustain up to 1450 h of repeated plating/stripping with a low overpotential in symmetric cells at a current density of 0.2 mA cm–2, while an improved performance is realized for full cells paired with a V2O5-based cathode. This work provides a facile and effective approach to improve the electrochemical performance of ZIBs.
研究领域:
储能
·
电化学
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材料科学
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电池技术
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ChemCatChem
·
2019
·Vol. 11
·期 24
·6391-6397
·
IF 4.495
Huifan Li,Gaifang Pan,Mengna Ding,Wenkai Pei,Ziping Zhang,Yingchun Miao,Yuning Huo
Ag/Bi 2 WO 6 microspheres were successfully prepared by ultrasound-assisted photo-reduction route to realize the Ag-loading on Bi 2 WO 6 crystal, which was previously synthesized by using solvothermal process with [C 4 -mim]BF 4 ionic liquid. The synergistic process of photo-reduction and ultrasonic irradiation induced the efficient conversion of Ag + ion into metallic Ag nanoparticles with uniform distribution. The enhanced amount of Ag nanoparticles and the strong combination of Ag nanoparticles with Bi 2 WO 6 microspheres, efficiently promoted the light harvesting and inhibited the recombination of photo-induced charges. As a result, Ag/Bi 2 WO 6 microspheres via ultrasound-assisted photo-reduction route achieved the higher visible-light photocatalytic activity for H 2 evolution than those catalysts prepared by other methods. This work may provide an efficient way for designing photocatalysts for hydrogen generation using solar light. Graphical Photocatalysis : The synergistic process of photo-reduction and ultrasound irradiation was utilized to achieve the uniform Ag-loading on Bi 2 WO 6 microspheres. The enhanced amount of Ag nanoparticles and their strong combination with Bi 2 WO 6 crystals was beneficial for improving visible-light absorption, and inhibiting recombination of photo-generated charges. It resulted in the promoted activity for visible-light photocatalytic H 2 evolution.
研究领域:
材料科学
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光催化
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纳米技术
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氢能
·
环境科学
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高影响因子
APPLIED SURFACE SCIENCE
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2021
·
IF 6.707
Xueer Ning,Aize Hao,Yali Cao,Na lv,Dianzeng Jia
The highly efficient piezocatalysts of Ag decorated ZnO nanocrystals (Ag-ZnO) have been designed and synthesized. Remarkably, piezocatalytic activity of Ag-ZnO depends on Ag concentrations. The piezocatalyst with suitable amount of 15% Ag-ZnO presents excellent piezocatalytic activity towards methylene orange (MO) organic dye degradation under ultrasonic vibration. The reaction rate constant of 15% Ag-ZnO is up to 19.58 × 10 −3 min −1 , which is 4.2 times in contrast with pure ZnO. Piezocatalytic efficiency of 15% Ag-ZnO reaches to ~ 90.5% after 120 min via combining piezoelectric effect with electrochemical synergistic coupling strategy. It also demonstrates that Ag decorated and piezo-electrochemical synergistic coupling effects can induce large amount polarization electric charges to form active superoxide radicals (·O 2 − ) and hydroxyl radical (·OH), further greatly facilitate the carriers transport and accelerate the electric charges carrier separation of the reaction kinetics process resulting in promoting the piezocatalytic degradation activity. Furthermore, a novel piezocatalytic mechanism has been put forward to elucidate the relationship between piezocatalytic decomposition performance and contribution in Ag decorated, and piezo-electrochemical synergistic coupling effects. The promising strategy provides an innovative guidance and idea for designing excellent performance piezocatalyst in dye wastewater decolorization treatment application.
研究领域:
材料科学
·
环境催化
·
纳米材料
·
能量转换
·
废水处理
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.3
Yiyang Bi,Fuyu Jiang,PeiLin Liu,Yuchun Wan,Lianshan Sun,Wanqiang Liu
Aqueous zinc-ion batteries (AZIBs) are viewed as competitive candidates for high-energy-density storage. However, the performance of AZIBs is impeded by dendrite growth and side reactions on the zinc anode surface. Herein, a facile in situ galvanic replacement strategy assisted by ammonium persulfate (APS)-assisted surface etching is proposed to construct a zincophilic Ag-modified interface on Zn metal, enabling dynamic regulation of Zn 2+ nucleation and deposition behavior. As a result, the Zn@Ag anode exhibits a significantly reduced Zn 2+ nucleation energy barrier (from 47.2 to 31.2 kJ mol −1 ), enabling uniform and dense Zn deposition while effectively suppressing dendrite formation and interfacial side reactions. Meanwhile, COMSOL simulations based on the finite element method verified the key role of the Ag-modified interface in suppressing dendrite formation and mitigating interfacial corrosion. At current densities of 1 mAh cm −2 , a symmetric cell with the Zn@Ag interfacial layer as the anode achieved a cycle life of 1757 h (39 times that of bare Zn). Moreover, the Zn@Ag || V 2 O 5 full cell has a cycle stability of over 2800 cycles. This method provides a new strategy for the design of anodes in AZIBs.
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