JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Ma Cankun,Guo Xiaonan,Yuan Mengfei,Wang Xinrui,Du Dou,Chai Chunpeng,Zhang Youwei,Ma Huiling
Effective structural design and component optimization is critical for enhancing the performance of electromagnetic wave (EMW) absorbing materials. In this study, CoFe Prussian blue analog/graphene oxide composite (CoFe-PBA/GO) was designed by electrostatic adsorption, in situ growth and co-precipitation deposition and carbon layer-coated CoFe/reduced graphene oxide composite (CoFe@C/RGO) was synthesized via pyrolysis. The carbon layer-coated CoFe (CoFe@C) with core-shell structure is successfully integrated onto the reduced graphene oxide (RGO) surface, effectively preventing the aggregation of RGO nanosheets. The incorporation of RGO facilitates the formation of a continuous conductive network and improves conduction loss. The optimized CoFe@C/RGO-15 has a minimum reflection loss ( RL min ) of − 47.88 dB at 9.42 GHz with a thickness of 2.1 mm and effective absorption bandwidth (EAB) is 3.77 GHz (11.98–15.75 GHz) at 1.6 mm. This study provides a novel approach for fabricating of an EMW-absorbing material with dielectric loss and magnetic loss, offering significant insights into low-frequency magnetic attenuation mechanisms. Graphical
研究领域:
材料科学
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电磁波吸收
·
纳米复合材料
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微波工程
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DOI
高影响因子
Catalysts
·
2025
·Vol. 15
·期 6
·576
·
IF 4
Lanqi Wang,Hui Ni,Jianing Yu,Jingyuan Zhang,Bin Zhao
In recent years, transition metal-based catalytic materials have garnered considerable attention, particularly those exhibiting high catalytic efficiency toward both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). In this work, a self-supporting ternary transition metal phosphide (CoFeNi0.2P) with a hierarchical structure was synthesized using the Prussian blue analogue (PBA)/zeolitic imidazolate framework-L (ZIF-L) template. Benefiting from the hierarchical structure of the PBA/ZIF-L precursor and the electronic structure modulation induced by Ni doping, the resulting CoFeNi0.2P demonstrates impressive bifunctional electrocatalytic activity. Specifically, in 1 M KOH electrolyte, the CoFeNi0.2P catalyst requires an overpotential of only 88 mV to deliver 10 mA cm−2for the HER and 248 mV to achieve 50 mA cm−2for the OER. Moreover, it demonstrates satisfactory stability toward both the HER and OER. When integrated into a two-electrode electrolyzer, CoFeNi0.2P enables a current density of 10 mA cm−2at a cell voltage of 1.59 V, maintaining robust performance for over 25 h. This study provides a feasible strategy for the rational design of hierarchical electrocatalysts for efficient overall water splitting.
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高影响因子
LANGMUIR
·
2025
·
IF 3.9
Chunmiao Fan,Dengjie Zhong,Yunlan Xu
In this study, CoFe-PBA-loaded NiFe-LDH (NiFe-LDH@CoFe-PBA) was synthesized and employed to catalyze peroxymonosulfate (PMS) to degrade rhodamine B (RhB). That the composite material was successfully synthesized was confirmed through complementary characterization techniques including energy-dispersive spectrometry, Fourier transform infrared spectroscopy, and X-ray diffraction analyses. The elimination efficiency of RhB reached 98.99% within 15 min under the conditions of an initial RhB concentration of 50 mg L–1, a catalyst concentration of 0.2 g L–1, a PMS concentration of 0.2 g L–1, and an initial pH of 6.36. The characterization results revealed that CoFe-PBA improved the dispersibility of NiFe-LDH and exposed more active sites, which made NiFe-LDH@CoFe-PBA have higher current density and electron transfer ability. In the composite, Co, Fe, and Ni were the catalytic centers to activate PMS, and the redox between Co3+/Co2+, Fe3+/Fe2+, and Ni3+/Ni2+ enhanced the production of reactive oxygen species (ROS: 1O2, O2•–, •OH, and SO4•–). Among them, 1O2 was determined to be the predominant reactive species responsible for RhB degradation. This study proposes a novel methodology for designing and synthesizing simple, efficient, stable, and environmentally friendly heterogeneous metal-based catalysts.
研究领域:
环境化学
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材料科学
·
催化化学
·
水处理技术
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纳米材料
·
环境污染与控制
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DOI
PubMed
高影响因子
EUROPEAN POLYMER JOURNAL
·
2011
·
IF 2.518
Bing Meng,Jingjing Deng,Qing Liu,Zhihua Wu,Wei Yang
Poly(butyl acrylate) was prepared by the free radical polymerization of butyl acrylate as an initiator in the presence of 2,2′-Azoisobu-tyronitrile (AIBN) and the average molecular weight , polydispersity and thermal stability were evaluated. PLA and PBA were melt blended using a Haake Rheometer, and the light transmission, thermal properties, dynamic rheological properties, mechanical properties , phase morphology of blends and toughening mechanism were investigated. Dynamic rheology, SEM and DSC results show that the PLA is partial miscible with PBA. The PBA component improved the crystallization ability of PLA and the crystallinity of PLA increased with content of PBA (<15 wt.%). With the increase of PBA, the tensile strength and modulus of the blend decreased slightly while the elongation at break and toughness were dramatically increased. With the addition of PBA, the failure mode changes from brittle fracture of neat PLA to ductile fracture of the blend. Rheological results revealed the complex viscosity and melt elasticity of the blends decreased with increasing content of PBA and phase segregation occurred at loading above 11 wt.% PBA. UV–vis light transmittance showed that PLA/PBA blends with a high transparency, and the transmittance decreased with the amount of PBA.
研究领域:
材料科学
·
高分子科学
·
化学工程
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DOI
高影响因子
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
·
2020
·Vol. 104
·期 17
·7345-7354
·
IF 3.53
Liu Yuan,Liu Dan,Shen Chen,Dong Sa,Hu Xiaodan,Lin Manman,Zhang Xiao,Xu Chongxin,Zhong Jianfeng,Xie Yajing,Zhang Cunzheng,Wang Donglan,Liu Xianjin
Abstract Pyrethroids are insecticides that are widely used in rural and urban areas worldwide. After entering the environment, pyrethroids are rapidly metabolized or degraded by various biological or abiotic methods. In this study, a single-chain variable fragment (scFv) which could simultaneously detect three pyrethroid metabolites was constructed based on a hybridoma raised against 3-phenoxybenzoic acid (3-PBA). By molecular docking, it showed that there were hydrogen bonds, hydrophobic interactions, CH-π interaction, and cation-π interaction between 3-PBA and its scFv. All the contact residues contributing to hydrogen bonds are located in VH-CDR2 or its neighboring region, and two of them were mutants of the closest germline sequence. Based on competitive ELISA, the half maximal inhibitory concentration (IC 50 ) of the scFv for 3-PBA, 3-phenoxybenzaldehyde (PBAld), and 3-phenoxybenzyl alcohol (PBAlc) were calculated to be 0.55, 0.59, and 0.63 μgmL −1 , respectively. The scFv also showed 23.91%, 13.41%, 1.15%, 1.00%, and 0.56% cross-reactivity with phenothrin, deltamethrin, fenvalerate, beta-cypermethrin, and fenpropathrin. The broad specificity of the scFv may be due to its hapten design. The scFv could be employed in class-specific immunoassays for pyrethroid metabolites with phenoxybenzyl (PB) group. It is also potentially used for characterizing degradation of pyrethroids or detecting PBAlc (PBAld) alone, and the detection results should be confirmed by other selective methods. Key points • A scFv which can simultaneously detect 3-PBA, PBAlc, and PBAld was constructed. • Antibody informatics and binding mode of the scFv were obtained. • The reason for its broad specificity was discussed. • It could be used to monitor single or multi-pyrethroid metabolites with PB group.
研究领域:
环境科学
·
免疫学
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DOI
PubMed
高影响因子
RENEWABLE ENERGY
·
2025
·
IF 9.1
Wenhao Liao,Qinghua Yang,Haiben Jiang,Pengwei Liu
Silver (Ag) and phosphorus (P) doping have been demonstrated to optimize electron density, enhance conductivity, and accelerate electron transfer. Moreover, construction of hollow structures can expose more active sites, significantly improving the performance of catalysts. Therefore, developing P/Ag-doped hollow structures for water splitting is highly promising and meaningful. However, similar studies remain rarely reported. In this work, we designed and synthesized a P-doped Ag 3 [Co(CN) 6 ] hollow cuboid, named as P/Ag@AgCo PBA, aiming to develop an efficient and high-performance water splitting catalyst. Benefiting from its hollow structure and P/Ag co-doping, the optimized P/Ag@AgCo PBA-1 exhibited outstanding catalytic activity. • In the hydrogen evolution reaction (HER), it achieved a current density of 10 mA cm −2 at a low overpotential (η 10 ) of 117 mV with a Tafel slope of 43.6 mV dec −1 . • In the oxygen evolution reaction (OER), the η 10 was 253 mV, and the Tafel slope was 65.3 mV dec −1 . • In the hydrogen evolution reaction (HER), it achieved a current density of 10 mA cm −2 at a low overpotential (η 10 ) of 117 mV with a Tafel slope of 43.6 mV dec −1 . • In the oxygen evolution reaction (OER), the η 10 was 253 mV, and the Tafel slope was 65.3 mV dec −1 . Owing to its excellent HER and OER performance, when employed as both the cathode and anode in overall water splitting, the catalyst required only 1.66 V to reach a current density of 10 mA cm −2 . Furthermore, it demonstrated remarkable catalytic stability over 24 h of continuous operation. We believe this facile and effective etching and heteroatom co-doping strategy offers new opportunities for the development of similar high-performance water splitting catalysts.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Suhui Xu,Tianhao Zhou,Jiamin Wang,Ge Guo,Zhiyan Chen,Huaxiang Li,Zhenquan Yang,Yajun Gao
Deoxynivalenol (DON) contamination in food products significantly threatens human health, necessitating a reliable and sensitive detection method. This study aims to develop a simple, low-cost, and effective electrochemical immunoassay method for detecting DON based on the nickel‑iron bimetallic Prussian blue analog (Ni Fe PBA). The Ni Fe PBA nanozymes with high peroxidase-like activity were synthesized using an environmentally friendly chemical precipitation method. In the presence of hydrogen peroxide (H 2 O 2 ), the current change of thionine oxidation initiated by Ni Fe PBA nanozymes can be exploited to diagnose DON. Under optimal conditions, the proposed method achieved quantitative detection of DON in the range of 10–10 7 pg mL −1 with a detection limit of 4.5 pg mL −1 (S/N = 3), demonstrating excellent selectivity, reproducibility, and stability. In addition, the DON immunosensor provides satisfactory results for the detection in real samples, demonstrating the feasibility of the proposed sensor in detecting of DON in such products.
研究领域:
食品安全
·
分析化学
·
生物传感
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DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2023
·
IF 8.8
Xin Tang,Xiangwei Yuan,Yao Jin,Jiaying Wu,Chengshuang Ling,Ke Huang,Liping Zhu,Xiaoli Xiong
Designing a rapid and sensitive glucose detection method is of great significance to public health. Herein, hollow CuMn-PBA@NiCo-LDH nanoboxes (CuMn-PBA@NiCo-LDH NBs) were prepared using acid etching, cation exchange, and reflux method. The modified electrode exhibited outstanding electrocatalytic performance for glucose oxidation due to the unique hollow nanostructure and synergistic effects. The CuMn-PBA@NiCo-LDH NBs electrode displayed excellent electrocatalytic oxidation activity for glucose in an alkaline solution. Under optimal conditions, the electrode achieved a wide linear range (0.0005–1 mmol L –1 , and 1–7 mmol L –1 ) and high sensitivity (10,300 μA L/mmol cm −2 and 5310 μA L/mmol cm −2 ), with a limit of detection (LOD) of 19 nmol L –1 . The feasibility of the sensor applied to the detection of glucose was verified in real food samples through spiked recovery experiments. This electrode material offers an alternative method for the non-enzymatic glucose sensors.
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PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Chao Cai,Yongning Tu,Xiaohong Yu,Dujuan Wu,Ye Song,Pengming Chen,Yunjie Tu,Meiling Chen,Song Li,Chaohai Wang,Jeonghun Kim,Wenkai Zhu
Formaldehyde is a significant indoor pollutant that poses serious risks to human health. Developing efficient, green, and renewable photocatalysts is considered one of the most promising strategies for indoor formaldehyde removal. In this work, we employed wood as a catalytic platform and successfully immobilized FeCo Prussian blue analogue nanoparticles (FeCo-PBA NPs) onto its surface. Subsequently, Fe-Co alloy-incorporated and N-doped wood-based carbonaceous photocatalysts (FeCoN@WC) were fabricated via pyrolysis. Scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD) were used to characterize the physico-chemical properties of the as-prepared FeCoN@WC. The results confirmed that FeCo-PBA NPs were successfully loaded onto the vessel walls of the wood, facilitating the formation of Fe-Co alloy and its incorporation into the carbon matrix during pyrolysis. Pyrolyzed FeCo-PBAs produced FeCo alloys and altered Fe/Co oxidation states. FTIR and XPS indicated that FeCoN@WC treated at 600°C had a stable structure with abundant catalytic sites, while XRD confirmed formation of intermediates favorable for photocatalysis. Moreover, FeCoN@WC showed excellent adsorption under dark conditions, with efficiency enhanced by 226.081 %. Meanwhile, the formaldehyde degradation under LED light was 6.796 % higher than in dark conditions. Furthermore, the first-order kinetic constant (k) was highest for FeCoN@WC prepared at 600°C, indicating optimal catalytic activity. Additionally, the FeCoN@WC demonstrated outstanding cycling stability, maintaining performance over multiple uses. This study presents a promising strategy for designing reusable wood-derived, PBA-based photocatalysts for sustainable indoor air purification.
研究领域:
环境科学
·
材料科学
·
光催化
·
室内空气质量
·
可持续材料
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Tao Wen,Xiaoyan Yang,Yanwei Yuan,Xiaoke Lv,Zhen Wang,Tianmeng Zhang,Bin Wu,Jianjun Chen
With the widespread proliferation of electronic and intelligent devices, increasingly stringent requirements have been imposed on microwave absorption materials. Ti 3 C 2 T x MXene is considered a promising microwave absorbing material with excellent properties. However, its high electrical conductivity and monotonous loss mechanism restrict its development in the field of microwave absorption. In this work, Ti 3 C 2 T x /Ni-Fe Prussian blue analogue (PBA) porous composites were synthesized via ion intercalation and chemical synthesis methods. The hollow cage-like Ni-Fe PBA was in-situ grown between the Ti 3 C 2 T x nanosheets. Benefiting from the magnetic loss characteristics and porous structure of Ni-Fe PBA, both the magnetic loss and polarization loss of Ti 3 C 2 T x were enhanced. The synergistic effect of multiple loss mechanisms optimized the impedance matching. Furthermore, the hollow cage-like structure of Ni-Fe PBA extended the propagation path and prolonged the transmission time of incident electromagnetic waves, thereby significantly improving the microwave absorption performance of the composite material. Consequently, the Ti 3 C 2 T x /Ni-Fe PBA composites achieve a significantly improved minimum reflection loss (RL min ) of −48.97 dB and an effective absorption bandwidth (EAB) of 3 GHz at a thickness of 3.9 mm. The radar stealth performance of the composite was evaluated by radar cross-section (RCS) simulation, with the maximum RCS reduction value reaching 11.75 dB m 2 . This work provides a promising strategy for developing high-performance microwave absorbers through structural and compositional design.
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DOI
高影响因子
Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2026
·
IF 5.7
Yi Li,Yong Tang,Yujing Wang,Junyin Chen,Chun Huang,Jianwei Zhao,Lirong Qin
In this study, a single-crystalline NiFe-PBA film was first electrodeposited onto a nickel foam substrate, followed by a secondary electrodeposition step to grow NiFe-LDH nanosheets on the film. This composite structure facilitates electron transfer from NiFe-LDH to NiFe-PBA, thereby enhancing the electrical conductivity of the electrode material. Meanwhile, the high specific surface area of NiFe-LDH nanosheets provides more active sites. As a result, the fabricated aqueous zinc-ion battery achieves a specific capacity of 133.5 mAh/g at a current density of 0.3 A/g. In addition, the capacitance contribution of the NiFe-PBA electrode material was only 6%, while that of the NiFe-PBA@NiFe-LDH electrode material increased to 18% at a sweep rate of 10 mV/s. These findings demonstrate that the NiFe-PBA@NiFe-LDH composite is a promising cathode material for aqueous zinc-ion batteries, offering a novel strategy for the development of high-performance cathodes in this field.
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DOI
高影响因子
ANALYST
·
2025
·
IF 3.3
Yiwen Sun,Ying Xie,Zixuan Yuan,Yujiao Mao,Huiru Liu,Yiting Zhu,Jinyu Dong,Xiaojun Chen
As a significant biomarker for the early development of prostate cancer (PCa), the sensitive detection of sarcosine (SA) in urine can serve as an effective non-invasive early warning method. Herein, we developed novel a hollow double shell NiMn PBA (NiMn-PBA-DSNB) with outstanding peroxidase-like activity through a facile cation exchange reaction according to the distinct solubility product constants (Ksp) of different Prussian blue analogues (PBAs). Moreover, we have innovatively proposed a “enzyme - nanozyme” cascade strategy to realize ultrasensitive SA sensing. This system utilized the enzymatic reaction between SA and sarcosine oxidase (SOX) to generate H2O2 in situ. In the presence of the generated H2O2, the NiMn-PBA-DSNB nanozyme can efficiently catalyze the oxidation of 3, 3’, 5, 5’-tetramethylbenzidine (TMB) to produce the blue oxTMB. Consequently, the concentration of SA directly correlated with the absorbance value of oxTMB, providing a quantitative detection. Based on this dual-enzyme cascade mechanism, a highly sensitive colorimetric assay was developed for the precise analysis of SA. The assay achieved a wide linear range from 8 to 500 μM, with a low detection limit of 1.75 μM, fully fulfilling the requirements for SA sensing in the urine of PCa patients. The method was also successfully applied to the analysis of real human urine samples, achieving recoveries ranging from 102.15% to 104.35% with relative standard deviations ≤ 5.03%, which demonstrates its strong potential for clinical application.
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高影响因子
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