JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2026
·Vol. 74
·期 28
·22312-22323
·
IF 6.7
Peng Huajie,Gao Di,Xiao Zhengyue,Yue Zhixiang,Xu Peng,Qiu Ping
Compared with natural-enzyme-based detection strategies,
nanozymes
offer notable advantages in stability, environmental tolerance, and
cost-effectiveness. In this study, we designed and synthesized a Pt@Fe-MIL-88
composite with both oxidase (OXD)-like activity and intrinsic fluorescence.
The material efficiently catalyzes 3,3 ′ ,5,5 ′ -tetramethylbenzidine
(TMB) oxidation, generating a color change while quenching its fluorescence.
Glyphosate (Gly) specifically inhibits the OXD-like activity of Pt@Fe-MIL-88,
reducing oxTMB production and thereby alleviating fluorescence quenching,
enabling dual colorimetric and fluorometric signal readout. The inhibition
mechanism was elucidated through FTIR, XRD, XPS characterization,
molecular dynamics simulations, and DFT calculations. Accordingly,
a natural-enzyme-free, colorimetric-fluorometric dual-mode sensing
platform for Gly was established. The platform exhibits high sensitivity,
excellent selectivity, and strong anti-interference capability, with
accuracy and reliability validated by spike recovery tests in real
samples. This work presents a new strategy for developing stable,
rapid, and low-cost multimodal detection methods for pesticide residues.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2026
·
IF 18.1
Yun Gao,Hao Yao,Xiaoyue Zhang,Hang Zhang,Xihao Lin,Bin Yang,Jinkui Li,Yameng Fan,Sean C Smith,Longhai Zhang,Xin Tan,Chaofeng Zhang,Shulei Chou,Zaiping Guo,Li Li
Fe-based Prussian blue analogs are promising positive electrodes for sodium-ion batteries due to their open framework and high theoretical capacity, yet suffer from structural degradation caused by interstitial water, lattice distortion, and irreversible phase transitions. Here we show a selection principle for alkali metal ion lattice engineering, based on geometric matching, hydration energy, and Fe-N bonding strength, to design high-energy, long-life positive electrodes. We demonstrate that immobilizing Cs + ions at the alkali metal sites enhances the structural and electrochemical stability of iron-based Prussian blue analogs. The introduced Cs + pillars alleviate lattice contraction, suppress framework distortion, enhance Fe-N covalency, and reduce crystal water content. These modifications promote sodium ion diffusion and charge transfer kinetics, especially across phase transition regions. Consequently, the optimized positive electrode delivers a high capacity retention of 81.48% after 1000 cycles at 750 mA g −1 and maintains 77.55% of its capacity at a high specific current of 7500 mA g −1 . It also exhibits good air stability and wide-temperature performance. A proof-of-concept pouch cell demonstrates its practical viability. This work establishes a viable selection principle for alkali-metal-site regulation, advancing the development of long-life, high-energy Prussian blue positive electrodes for large-scale sodium-ion battery applications. Fe-based Prussian blue positive electrodes for sodium-ion batteries often suffer from stability issues. Here, the authors establish an alkali metal-site selection principle involving Cs⁺ ions to enhance structural stability, enabling long-life positive electrodes with performance further validated in a pouch cell.
✓ 已验证
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Jie Ding,Jing Zhang,Boxia Liu,Yuyu Wang,Dongxu Han,Yeqiong Huang,Chuhan Xing,Zhi Song
MnFe-O activates PMS to remove 99.34% phenol within 30 min. • Oxygen vacancies regulate Mn-Fe dual-site electronic coupling. • MnFe-O shows higher Fe 2+ and Mn 3+ contents for rapid redox cycling. • O 2 •− / 1 O 2 -coupled pathways dominate phenol oxidation in MnFe-O/PMS. • MnFe-O/PMS maintains high activity in diverse real water matrices. Peroxymonosulfate (PMS) activation technology has significant application potential in the removal of phenolic pollutants, but its catalytic performance is still limited by problems such as insufficient regulation of the electronic structure of active sites and unclear interfacial reaction pathways. This study used MnFe Prussian blue analogue (MnFe-PBA) as a precursor to construct a series of MnFe-X (X = O, S, Se) catalysts through thermal conversion and oxygen vacancy-related defect engineering, and systematically compared the effects of different vacancy types on the PMS-activated degradation performance of phenol. The results showed that the MnFe-O sample, which was jointly regulated by oxygen vacancy-related defects and structural reconstruction, exhibited the best catalytic activity, achieving 99.34% phenol removal within 30 min, with an apparent rate constant as high as 0.20 min −1 , which was significantly better than the MnFe-PBA and S/Se vacancy-regulated samples. XPS analysis showed that the increased proportions of Fe 2+ (77.25%) and Mn 3+ (70.00%) in MnFe-O created a more favorable local electronic environment for electron coupling and redox cycles. EPR and quenching results indicate that •OH, SO 4 •− , O 2 •− and 1 O 2 are generated simultaneously in the system, and an oxidation pathway dominated by O 2 •− / 1 O 2 coupling is ultimately formed. This work reveals the key role of oxygen vacancy-related defects and structural reconstruction in jointly regulating the activation of PMS by Mn-Fe dual sites, providing a new mechanistic basis for defect engineering-driven bimetallic catalyst design and efficient purification of phenolic wastewater. Download: Download high-res image (230KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2026
·
IF 15
Quan Liao,Shichao Zhang,Yuhan Xie,Qidan Tan,Tengfei Li,Shushuai Yang,Chenglong Xu,Zhouting Tuo,Rui Yao,Longchao Zhang,Haiwen Zhou,Yuanjiong Qi,Shiyong Qi
Background Acute kidney injury (AKI) remains a major clinical challenge and is largely driven by excessive oxidative stress, inflammatory responses, and tubular cell apoptosis. However, effective therapeutic strategies that simultaneously target these pathological processes are still lacking. Results We developed a pH-responsive ultrasmall Fe–kaempferol (Fe–Kae) nanoplatform with coordinated antioxidant and anti-inflammatory activities for AKI treatment. Owing to their ultrasmall size and pH-responsive properties, Fe–Kae nanoparticles preferentially accumulated in injured renal tissues and exhibited robust renoprotective effects in multiple murine AKI models, including ischemia–reperfusion injury, cisplatin-induced nephrotoxicity, and calcium oxalate–induced kidney injury. Integrated transcriptomic and metabolomic analyses of ischemia–reperfusion–injured kidneys revealed that Fe–Kae treatment markedly enhanced efferocytosis-associated pathways and induced coordinated metabolic reprogramming, characterized by optimized tricarboxylic acid cycle activity and enhanced glutathione metabolism. Conclusions This study establishes a nanomedicine-based therapeutic strategy that couples efferocytosis enhancement with metabolic reprogramming to achieve effective renoprotection. Our findings highlight pH-responsive ultrasmall metal–polyphenol nanoplatforms as a promising paradigm for the treatment of AKI. Graphical Open in a new tab Graphical Supplementary Information The online version contains supplementary material available at 10.1186/s12951-026-04534-8.
✓ 已验证
DOI
PubMed
高影响因子
Chemical Engineering Journal Advances
·
2026
·
IF 6.9
Long Liu,Jie Zou,Zihao Zhou,Yuxuan Yang,Xueqiang Shao,Yangyang Bian,Mingwen Zhang,Jinbei Yang
In this study, functionalized ionic liquids were precisely anchored onto the pores and surfaces of the high-specific-surface-area MIL-101(Fe) metal-organic framework (MOF) carrier through covalent bonding, achieving the ordered arrangement of active sites and the modulation of the local microenvironment. Specifically, carboxyl-functionalized imidazolium ionic liquids bridge Fe³⁺ ions and terephthalic acid ligands to construct the supported acidic ionic liquid MIL-101(Fe)-[(CH₂COOH)₂IM][HSO₄] via solvothermal co-assembly. The obtained catalyst efficiently facilitates the esterification of various free fatty acids with methanol for biodiesel production. The catalyst was characterized by XRD, FT-IR, XPS, SEM, BET-BJH, and TGA. The catalyst demonstrated high acidity (6.31 mmol/g), excellent thermal stability, and efficient catalytic performance. Under the operating conditions optimized by response surface methodology (catalyst dosage of 8.64%, methanol-to-oleic acid molar ratio of 16.9:1, reaction temperature of 67.0 °C, and reaction time of 4.0 h), the oleic acid conversion over MIL-101(Fe)-[(CH₂COOH)₂IM][HSO₄] reached 97.66%, and it still maintained favorable catalytic performance after 7 cycles. In addition, MIL-101(Fe)-[(CH₂COOH)₂IM][HSO₄] also exhibited broad substrate applicability, and could serve as a promising catalyst for biodiesel preparation.
✓ 已验证
DOI
高影响因子
Advanced Composites and Hybrid Materials
·
2026
·
IF 15.5
Yang Cao,Luo Jialiang,Wang Yue,Xue Yiqing,Liu Guigao,Lu Zhehong,Wang Suwei,Jiang Wei
Rational microstructure design and compositional regulation have emerged as effective pathways to enhance electromagnetic wave (EMW) absorption, However, simultaneously achieving strong absorption, broad bandwidth, thin thickness and low filler loading remains challenging. Herein, three-dimensional hierarchical heterostructures comprising amorphous carbon-wrapped magnetite supported on flower-like reduced graphene oxide (Fe₃O₄@C/FRGO) was constructed through spray-drying assembly, spatially confined solvothermal crystallization, and defect-modulated carbonization. By tailoring the reduction degree of FRGO and tuning ferrite composition through thermal treatment, the dielectric-magnetic properties and interfacial interactions are precisely regulated. With merely ≈ 3.26 wt% incorporation of FRGO, the optimized composite exhibits a minimum reflection loss (RL min ) of -66.29 dB at 1.94 mm (20 wt% filler) and a broad effective absorption bandwidth (EAB) of 6.60 GHz (11.30–17.90 GHz) at 2.73 mm (30 wt% filler). This exceptional performance is attributed to the engineered heterointerfaces that facilitate multi-path energy dissipation via magneto–dielectric coupling optimized impedance matching, intensive interfacial polarization from abundant hierarchical architectures and the flower-like structure induced multiple scatterings. This study highlights the pivotal role of interfacial engineering in heterostructured absorbers and offers a design paradigm for high-performance EMW-absorbing materials through coordinated component–structure modulation. Graphical abstract The alternative text for this image may have been generated using AI.
✓ 已验证
DOI
高影响因子
GEOPHYSICAL RESEARCH LETTERS
·
2026
·Vol. 53
·期 14
·e2026GL122763
·
IF 5
Yuanjing Li,Liangliang Zhang,Fabin Pan,Xiaojing Lai,Xiang Wu,Feng Zhu
Mercury is one of the few terrestrial planets in the solar system with a magnetic field, yet the energy source to power its core dynamo remains unclear to date. Si, C, and possibly H are the top candidate light elements for its liquid core. Here, we showed experimentally that Si, C, and H in Fe-Si-C and Fe-Si-C-H liquids share a simultaneous solubility at 9–21 GPa, 1,400°C–2,200°C, and this solubility decreases with decreasing temperature. When exceeding the simultaneous solubility, light elements will exsolve from the Fe melt as elemental phases such as diamond, graphite, silicon, and H 2 . We infer that if Mercury had an early liquid core primarily composed of saturated Fe-Si-C-(H) liquid, subsequent cooling would lead to continuous light element exsolution in its liquid core. The gravitational potential released by the exsolved light elements can drive the compositional convection and power its long-term core dynamo.
✓ 已验证
产品关联
DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2026
·
IF 5.2
Yongzhi Zhao,Gengchen Bai,Wenhe Yu,Jianfang Liu,Baorui Jia,Xuanhui Qu,Mingli Qin
The development of efficient non-precious metal catalysts for the oxygen reduction reaction (ORR) is crucial for advancing sustainable energy technologies. Although single-atom Fe–N–C materials hold great promise, they are often limited by metal aggregation issues associated with conventional carbon supports. In this study, we propose a novel catalyst design that stabilizes Fe–N–C single-atom sites on a robust diamond-based matrix to fabricate a highly efficient electrocatalyst. With mild graphitization of the diamond surface to enhance its electrical conductivity during electrocatalytic processes, the Fe species are atomically dispersed and form coordinate covalent bonds with pyridinic N. In alkaline electrolyte, the Fe–N–D catalyst exhibits enhanced ORR activity, outperforming both pristine diamond and carbon black reference samples. Density functional theory (DFT) calculations reveal that the active Fe–N 4 –C configuration promotes kinetically efficient ORR by optimizing charge transfer and weakening the O O bond. This work integrates conductive sp 2 ‑carbon with a stable sp 3 -diamond core to establish a novel support for anchoring single-atom catalysts, providing a new substrate materials-design paradigm for electrocatalysis. Download: Download high-res image (124KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124301
·
IF 7.5
Nan Sun,Hongxia Deng,Niya Ye,Yang Zhang,Yue Zhang
Efficient monitoring and controlling the fluoride content is of paramount significance for human health owing to the double-edged sword characteristic. Herein, a novel dual-functional Ce/Fe bimetallic MOF-derived mesoporous carbon (Ce/Fe@C) is engineered through competitive coordination polymerization and calcination for the selective detection and adsorption of fluoride. Attributed to unique oxygen vacancies, Ce/Fe@C could productively capture fluoride by forming specific Ce/Fe–F and C–F bonds, affording a high adsorption capacity of 146.57 mg g −1 . Harnessing the fluoride complex-mediated blocking of active sites promotes the deterioration of peroxidase-mimicking activity of Ce/Fe@C, facilitating the sensitive colorimetric detection of fluoride with a limit detection of 0.245 μmol L −1 . Most importantly, facile magnetic separation of Ce/Fe@C not only simplifies the operation for fluoride treatment but also improves the detection accuracy via background interference elimination, as well as excellent reusability. As functional nanozyme and adsorbent, Ce/Fe@C is successfully utilized for the specific detection and scavenging of fluoride in various complicated samples. This work furnishes a reliable “two in one” platform for alleviating fluoride contaminant stress and highlights the tremendous prospects of versatile bimetallic MOF-derived carbons for food analysis and environmental remediation.
✓ 已验证
产品关联
DOI
高影响因子
Processes
·
2026
·Vol. 14
·期 13
·2150
·
IF 3.4
Pei Liu,Ao-Tian Gu,Jian Chen,Jun Chen,Zi-Rui Tian,Lei-Lei Gu,Yi Yang
With the rapid development of the pharmaceutical industry and animal husbandry, conventional wastewater treatment plants have difficulty effectively degrading the widely occurring ceftiofur sodium (CEF) in aquatic environments. To address this issue, this study successfully loaded Fe/Co-ZIF onto carbon nanofibers (CNF), thereby preparing Fe/Co-ZIF@CNF composites with well-dispersed supported materials and a stable structure. The as-prepared Fe/Co-ZIF@CNF was further applied in a persulfate-based advanced oxidation system (SR-AOPs) for CEF degradation and exhibited good catalytic performance. When the Fe/Co molar ratio was 1.25:1, the Fe/Co-ZIF1.25material achieved a CEF degradation efficiency, kobsvalue, and TOC removal rate of 94.0%, 0.135 min−1, and 43.8%, respectively. Radical quenching experiments preliminarily indicated that SO4•−played a dominant role in the reaction system, while •OH and1O2also made non-negligible contributions to CEF degradation. This work provides a new strategy for constructing composite catalysts based on carbon nanofiber-supported polymetallic MOFs.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Zhenyu Tian,Yan Liu,Wanfeng Zhu,Shiji Wang,Wenjia Li
Metal-supported solid oxide fuel cells (MS-SOFCs) are recognized as a critical pathway toward high-efficiency energy conversion and global sustainable development, owing to high mechanical robustness, low cost. However, MS-SOFCs are still limited by gas diffusion. To address this challenge, this study proposes an open graded-pore structure Ni-Fe (GP-NF) support fabricated via a double layer tape casting with a phase inversion process. A Ni-Fe layer is cast onto a graphite sacrificial layer. Through a dynamic solvent/non-solvent exchange process, a graded-pore structure consisting of a skin layer and finger-like pore layer is formed within the Ni-Fe support layer, while the sponge pore layer is generated within the graphite sacrificial layer. Subsequently, the graphite sacrificial layer beneath the Ni-Fe layer decomposes at high temperatures, thereby directly exposing the finger-like pore to air and forming the GP-NF support. The GP-NF support exhibits a high porosity of 53.2%. The polarization resistance ( R p ) of the GP-NF support SOFC is 0.21 Ω·cm 2 , which is 19.2% lower than that of a conventional single-layer tape casting Ni-Fe support (NF, 0.26 Ω·cm 2 ) SOFC. Therefore, the GP-NF support SOFC achieves a peak power density of 1.05 W·cm -2 at 800°C, representing a 72.1% enhancement over the NF support SOFC (0.61 W·cm -2 ). This work demonstrates an improvement in gas transport through strategic structural design, providing a feasible pathway for developing high-performance, highly reliable, and cost-effective MS-SOFCs.
✓ 已验证
产品关联
DOI
高影响因子
Desalination and Water Treatment
·
2026
·
IF 3.4
Changwei Xiang,Kun Shi,Weiqiang Dong,Huixin Xiong
In this study, ferrihydrite composites of MnO 2 /Fh and PANI/Fh could form from bacterially oxidized Fe(III)-solutions mixing MnCl 2 (Mn/Fe =1) and polyaniline (PANI, 10 mg) at pH 8.0 −10.0, respectively. They could be used to remove P from the (waste)waters. The prepared MnO 2 /Fh wwas identified as Fh, γ-MnO 2 and γ-MnOOH phases by XRD, FTIR and XPS, and the other composite was PANI/Fh. Adsorption processes fitted to the first/second-order rate models and Weber-Morris intraparticle diffusion model (R 2 ranging in 0.920–0.999), and were spontaneous, endothermic and random. Isothermal adsorptions could be well described by Langmuir model (R 2 of 0.991–0.997) and Freundlich model (R 2 of 0.933 −0.979). The maximal P (10 mg/L) adsorption capacities ( Q e ) were 99.3 mg/g (PANI/Fh) and 84.3 mg/g (MnO 2 /Fh), while that of Fh was 53.6 mg/g at pH7.0. There were the wide pH ranges for PANI/Fh (3.0 −11.0) and MnO 2 /Fh (3.0 −8.0), and the presence of CO 3 2- ion declined P removal efficiencies. The main adsorption mechanisms were electrostatic attraction, ion exchange, and surface complexation. Two Fh composites still had the better abilities of treating P-containing neutral river waters after three regenerations. It provides the potential approaches for preparing Fe-composites and removing P using waste bacterial Fe(III)-solutions.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）