CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Shijie Liu,Yanan Liu,Xiaocui Wei,Fu Zhao,Tingyuan Wang,Yigui Du,Enshen Shi,Fenglong Dai,Chunjia Wang,Chunyang Fan,Yuhan Wang,Zhongyi Jiang
The antifouling property of membrane is important for wastewater treatment, and surface segregation, as a bioinspired in-situ membrane construction approach enabling simultaneous modification of external membrane and internal pore surfaces, has been increasingly applied to improve membrane antifouling ability. Herein, a complexation enhanced surface segregation method is proposed to construct antifouling membrane for oil/water separation, with tannic acid (TA) as the surface segregation agent in casting solution and Fe 3+ as the crosslinking agent in coagulation bath. During the phase inversion process, TA spontaneously segregates toward the membrane surface to form the hydrophilic crosslinked separation layer through the complexation with Fe 3+ . Accordingly, the membrane exhibits the water permeance of 251 L m − 2 h − 1 bar −1 with oil rejection of over 99.7%. Moreover, hydrophilic crosslinked separation layer endows the membrane with enhanced hydrophilicity, underwater superoleophobicity and low oil adhesion as well as outstanding antifouling performance with water recovery ratio (FRR) of 95.7% for surfactant-stabilized pump oil-in-water emulsion. Meanwhile, the membrane presents effective antifouling ability in pH range of 3–11 and after prolonged aqueous immersion. Furthermore, after five-cycle filtration experiment, the membrane still maintains FRR of 90.2%. Our study provides a simple approach to constructing antifouling membrane through integrating surface segregation with complexation of TA and Fe 3+ .
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高影响因子
Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 5
·123941
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IF 7.5
Mengyuan Yang,Yanling Li,Temitope Fausat Ajibade,Ziang Zhou,Zhaoping Cai,Lixiang Li,Huali Tian
Covalent organic frameworks (COFs) are effective materials for water treatment membranes due to their tunable pore structures and high compatibility. While composite modification strategies combining plant polyphenol tannic acid (TA)-Fe³⁺ and COFs show great promise for TFC membranes, they typically involve organic solvents or complex pre-modification of the fillers. In this study, a green, fully-aqueous layer-by-layer (LbL) self-assembly strategy was employed to prepare TA-Fe(COF-LZU1)/PES membranes. By exploiting the inherent synergy between the rigid crystalline channels of COF-LZU1 and the adhesive TA-Fe network, this approach directly utilizes pristine COF-LZU1 without secondary modification. Unlike conventional methods, the entire process avoids organic solvents, offering a highly sustainable technical alternative. The incorporation of COF-LZU1 significantly enhanced the membrane surface properties, with surface roughness increasing from 17.0 ± 2.2 nm to 43.8 ± 8.5 nm and the water contact angle decreasing from 77.0 ± 1.6° to 20.0 ± 1.0°, thereby substantially improving the membrane’s hydrophilicity. The TA-Fe(COF-LZU1)/PES membrane achieved a pure water permeance of 35.85 L·m - ²·h - ¹·bar - ¹, representing a 11.5% increase over the TA-Fe/PES membrane. It exhibited excellent separation performance, achieving high rejections of 98.3% for Direct Red 80, and further demonstrated robust stability in mixed dye/salt solutions. In five-cycle bovine serum albumin (BSA) tests, the membrane exhibited improved antifouling durability, yielding a flux recovery ratio of 75.5%. Additionally, it operated stably across a pH range of 4–8. This green self-assembly approach provides a practical strategy for preparing composite membranes for dye wastewater treatment.
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INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Guirong Duan,Jie Jiang,Yanqing Jiao,Jiaqi Wang,Xi Zhao,Ganceng Yang,Haijing Yan,Honggang Fu
Developing low-cost, corrosion-resistant catalytic electrodes for the oxygen evolution reaction (OER) is essential for efficient and durable hydrogen production via anion exchange membrane water electrolysis (AEMWE). Herein, we report a polydopamine (PDA)-coated Fe,Cr codoped NiS2 self-supporting electrode (PDA-Fe,Cr-NiS2@NF). The nitrogen-rich functional groups of PDA establish robust M-N coordination bonds with active metal centers, thereby suppressing metal dissolution during anodic reconstruction. In parallel, the conductive PDA layer regulates interfacial electron redistribution and optimizes the hydrogen-bond network of interfacial water, lowering the OER activation energy. Its conformal protective layer further enhances catalyst stability. The optimized electrode delivers an OER overpotential of only 247 mV at 1 A cm–2. When integrated as the anode with a PtNiC cathode in an AEMWE cell, the system reaches a current density of 1 A cm–2 at only 1.737 V at 70 °C and operates stably for 1000 h, with a voltage decay rate of only 0.1 mV h–1, an electrolysis efficiency of 71.96%, and an energy consumption of 4.157 kWh Nm3– H2. This work establishes a viable coordination-protection strategy for constructing durable, high-performance OER electrodes for industrial-scale water electrolysis.
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ACS Sensors
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2026
·
IF 10.9
Fan Shi,Shu Deng,Lianjin Jiang,Jidie Tao,Yongfa He,Jinju Zuo,Brij Mohan,Wei Sun,Qiantao Ma
Chlorogenic acid (CGA) has antibacterial, antiviral, and antioxidant properties, making its detection essential in food science, pharma, and environmental monitoring. Nevertheless, the mechanistic understanding of CGA recognition and redox behavior at electrochemical sensor interfaces remains limited, posing a key scientific challenge. Herein, a novel Fe-N4 diatomic-site carbon nanomaterial is prepared via in situ pyrolysis of coffee grounds, which served as a simultaneous precursor for carbon, iron, and nitrogen. Aberration-corrected scanning transmission electron microscopy confirms single-atom dispersed iron with diatomic active sites. At the same time, X-ray absorption near-edge structure and extended X-ray absorption fine structure analyses reveal a Fe–N4 coordination. Density functional theory calculations indicate that during CGA oxidation, hydroxyl oxygen atoms preferentially adopt a side-adsorption configuration at dual active sites, thereby enhancing interfacial electron transfer and catalytic selectivity. The constructed electrochemical sensor exhibits two linear response ranges, 0.2−0.8 and 0.8−500.0 μmol/L, with a detection limit of 0.067 μmol/L (LOD = 3 s/m). Overall, this study presents a sensitive, cost-effective electrochemical sensor for CGA detection and highlights the critical role of adsorption configuration in determining the performance of single-atom catalysts.
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PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Muhammad Arif,Min He,N.A. Samreen,Hasi Hays,Ling Wang,Xiyuan Zhang,Bingqiang Zhang,Guotai Li,Tengbo Yu,Qihui Zhou
The increasing prevalence of antibiotic-resistant Helicobacter pylori (R- H. pylori ) poses a significant clinical challenge, contributing to persistent gastritis, peptic ulcers, and gastric cancer. Conventional antibiotic therapies are increasingly limited by resistance, incomplete eradication, and disruption of the gut microbiota. To address these challenges, we developed pH-responsive iron-doped ammonium citrate carbon dots (Fe-CDs), a nanozyme with intrinsic specificity for targeting and eradicating R- H. pylori within the acidic gastric microenvironment. Fe-CDs exhibit dual oxidase (OXD)- and peroxidase (POD)-like catalytic activities that are selectively activated under acidic conditions, driving the localized generation of reactive oxygen species (ROS) via Fenton and Fenton-like reactions involving Fe(II) and endogenous hydrogen peroxide (H₂O₂). The nanozyme shows strong binding affinity for H. pylori through ammonium (NH 4 + )-mediated interactions and specifically targets Urel, thereby inhibiting urease activity and disrupting bacterial acid resistance. This dual mechanism—acid-enhanced ROS production combined with urease suppression—confers potent bactericidal effects against R- H. pylori while preserving commensal microbiota and minimizing off-target damage. Transcriptomic analysis of infected gastric tissue revealed that Fe-CDs induce ROS-mediated stress pathways and metabolic disruption in H. pylori . In vivo studies confirmed that Fe-CDs significantly reduce bacterial load in R- H. pylori -infected mice with negligible toxicity. These findings highlight Fe-CDs as a targeted, antibiotic-free therapeutic strategy for resistant gastric infections and offer a promising alternative to conventional treatments.
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PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
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2026
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IF 2.6
Dongling Meng,Zhiyan Chen,Zhibin Chen,Junrao Cen,Chengwei Lin,Yaling Yang
Herein, a novel bimetallic (Fe,Cu/His) nanozyme with high peroxidase (POD)-like activity for colorimetric assaying of glucose was designed. Assisted by glucose oxidase (GOx), glucose could be specifically converted into H2O2 for oxidizing chromogenic substrate 3,3′,5,5′-tetramethylbenzidine (TMB) catalyzed by Fe,Cu/His to generate blue oxTMB with absorption at 654 nm. Specifically, Fe,Cu/His exhibits excellent POD-like activity due to ascorbic acid with reducing properties to ensure the formation of binary-valence metal pairs (Fe3+/Fe2+ and Cu2+/Cu+), thus enhancing electron transfer during the catalytic process. Based on the cascade reaction of GOx and the Fe,Cu/His nanozyme, a sensitive colorimetric assaying platform for glucose detection was constructed with a good linear range of 5–1000 µM and a calculated limit of detection of 1.44 µM. This proposed method was applied to assay glucose in tobacco samples sensitively and accurately.
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APPLIED SURFACE SCIENCE
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2026
·
IF 6.6
Qianru Wu,Yishuo Xu,Enming Xu,Qi Wu,Ziyu Zhang,Zhen Wang,Kezheng Chen,Maoshuai He
Porous magnesia (MgO) is widely employed as a support for anchoring metal catalysts in the synthesis of single-walled carbon nanotubes (SWNTs), where its surface properties significantly influence catalytic behavior. In this study, MgO supports with different surface basicity are prepared through calcination at different temperatures and loaded with iron (Fe) to probe the influence of support basicity on SWNT growth. Using carbon monoxide as the carbon source, all Fe catalysts supported by different MgO carriers are active for the chemical vapor deposition synthesis of SWNTs. Remarkably, the Fe catalyst supported on MgO pre-calcinated at 600 °C enables SWNT growth with a yield of 2.2% at a temperature as low as 600 °C. This enhanced low-temperature activity is attributed to the strong surface basicity of the MgO support, which promotes the adsorption and dissociation of carbon-containing molecules on Fe nanoparticle surfaces, thereby facilitating SWNT nucleation and growth at reduced temperatures. Upon increasing the growth temperature to 700 °C, SWNTs grown over all Fe/MgO catalysts exhibit a pronounced enrichment of the (6, 5) chirality, highlighting the critical role of active catalyst composition in dictating SWNT chirality distribution. This work highlights the synergistic importance of catalyst composition and support surface basicity in achieving low-temperature growth and narrow chirality distribution of SWNTs
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JOURNAL OF SUPERCRITICAL FLUIDS
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2026
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IF 4
Haixin Sun,Jianlei Qi,Jianzhong Yin
Currently reported Fe-NC catalysts for peroxymonosulfate (PMS) activation are mostly pyrolytically derived nanoparticle systems, which often suffer from low atomic utilization efficiency of the metal species. In this study, a single-atom Fe-NC catalyst was fabricated using a supercritical CO₂ deposition method, with iron(III) acetylacetonate as the metal precursor and a nitrogen-doped carbon material as the support. The as-prepared catalyst was employed to activate PMS for the degradation of Rhodamine B (RhB). Characterization by STEM, XRD, and BET analyses confirmed that the nitrogen-doped carbon support exhibits a high specific surface area and substantial nitrogen content. Aberration-corrected electron microscopy directly evidenced the uniform dispersion of isolated Fe atoms on the support surface. After 5 min of reaction, an RhB removal efficiency of 82.3% was achieved, corresponding to a turnover frequency of 2.73 min⁻¹. These results highlight the effectiveness of atomically dispersed Fe sites in activating PMS to generate reactive oxygen species.
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高影响因子
COMPOSITES PART B-ENGINEERING
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2026
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IF 14
Ping-an Yang,Li Wang,Haibo Ruan,Wenjiao Deng,Rui Li,Qiqiao Yang,Decheng Wu,Dengfeng Li
MXene-based materials with integrated electromagnetic wave (EMW) management and thermal dissipation capabilities exhibit considerable application potential for ensuring the stable service of electronic devices. However, existing regulation strategies struggle to realize the synergistic optimization of impedance matching and thermal conductivity simultaneously, which hampers its practical applications. Herein, by combining component modification and structural regulation strategies, a highly interconnected, anisotropically ordered Fe-MXene/graphene oxide (GO) aerogel was constructed via a modified bidirectional freeze-induced self-assembly technique. At the microscale, the electron-phonon thermal conduction mode of MXene-based materials is further enhanced by the long-range ordered lamellar structure and interlamellar bridging effect, endowing Fe-MXene/GO-1 with a thermal conductivity of 0.69 W m −1 K −1 —an increase of several tens of times compared with conventional aerogels. Meanwhile, the multiple reflections of EMWs by the porous architecture and the modulation of electrical conductivity via the electronic pinning effect synergistically optimize the EMW dissipation capability, granting Fe-MXene/GO-1 an effective absorption bandwidth (EAB) of 4.08 GHz along the axial direction at an ultrathin thickness of 1.45 mm. The results demonstrate that the introduction of a highly anisotropically ordered structure enables the synergistic enhancement of thermal dissipation capability and electromagnetic compatibility for the Fe-MXene/GO aerogel. Furthermore, the hydrogen-bonding interactions between intrinsically high-strength GO and Fe-MXene nanosheets effectively protect the aerogel skeleton and thus enhance its mechanical stability. This lightweight and thin Fe-MXene/GO aerogel exhibits tremendous potential for the packaging of highly integrated electronic devices.
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高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
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2026
·
IF 5.9
Xiaofei Guo,Zhongyao Guo,Chen Wang,Candong Liu,Honghui Cheng,Kuikui Wang
The highly active and stable oxygen reduction reaction (ORR) process is essential for driving the development of zinc-air batteries (ZABs). Therefore, by integrating the precise regulation of precursors, the tannic acid (TA) etching and nitrogen coordination strategy, a nitrogen-rich hierarchical porous Fe-N-C catalyst was successfully constructed. The uniform dispersion of particles was achieved by controlling the formation of the Fe-ZIF-8 precursor. Subsequent TA etching formed a rich mesoporous/microporous structure to improve active-site exposure. During the high-temperature pyrolysis process with melamine as the nitrogen source, a highly dispersed Fe-N X coordination structure was formed. Based on this rational design, the obtained catalyst presents a hierarchical porous structure, high nitrogen content and superior ORR activity, with a half-wave potential of 0.91 V in 0.1 M KOH solution. When applied to liquid and flexible ZABs, the catalyst delivers peak power densities of 186 mW cm −2 and 75 mW cm −2 , respectively, and cycling stability of over 1486 h is maintained in the liquid system-surpassing the performance of commercial Pt/C + RuO 2 . This research offers a fresh perspective on the design and synthesis of efficient ND-FeNC-TA catalysts and promotes the practical application of ZABs.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Duo Zhang,Ying-Nan Dou,Rui Gao,Xian-Fa Zhang,Hui Zhao,Xiao-Li Cheng,Shan Gao,Ying-Ming Xu,Li-Hua Huo
Rapid, highly sensitive detection of mustard gas is a critical requirement in public safety and national defense. However, achieving highly sensitive, ppb-level detection of mustard gas under low-power conditions remains a significant challenge. Focusing on the typical blister agent simulant 2-chloroethyl ethyl sulfide (2-CEES), a solvothermal method was employed combined with controlled thermal treatment to fabricate an ultrathin porous NiFe 2 O 4 /NiO nanosheets heterostructure sensor derived from an Fe-Ni-MOF in-situ grown on a ceramic tube in this study. This material possesses uniformly distributed intimate heterogeneous interface, a high specific surface area (95.8 m 2 ·g −1 ), and abundant surface active sites, thereby significantly enhancing its adsorption and catalytic oxidation capability toward 2-CEES. At a low operating temperature of 130 °C, the sensor demonstrates a high response of 41.5 toward 10 ppm 2-CEES, a rapid recovery capability of only 84 s, and a low detection limit of 20 ppb, along with excellent selectivity, humidity resistance, reproducibility, and long-term stability. Through systematic characterization including XPS, in-situ DRIFTS, TPD, and DFT calculations, the multi-step catalytic oxidation pathway of 2-CEES on the composite surface is elucidated, along with the mechanism by which the heterostructure enhances gas-sensing performance via band structure modulation, interfacial charge transfer, and the built-in electric field. This study offers both new materials and novel insights for the development of low-power, highly sensitive sensors for trace detection of chemical warfare agents.
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高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Wenlong Yang,Zhenghui Ma,Guoli Fan,Xiaoyan Pu,Feng Li
Photocatalytic CO2 reduction to produce high value-added hydrocarbons has attracted significant attention, yet its overall efficiency remains unsatisfactory. In this work, a micro-liquid film reactor featuring enhanced mixing efficiency was utilized to realize the doping of single Fe atoms into the lattice of TiO2, enabling the generation of abundant atomically dispersed Feδ+ -Ov-Ti structures (Ov: oxygen vacancy). The results showed that compared to pristine TiO2, the optimized Fe-TiO2 photocatalyst bearing a 4 wt.% Fe content exhibited 15.2 times higher activity, with a significant shift in the predominant product from CO to CH4, as well as an impressively high CH4 formation rate of 29.2 μmol•g-1•h-1 , surpassing those over most of the state-of-the-art TiO2-based photocatalysts previously reported. It was revealed that the incorporation of single-atom Fe could reduce the bandgap of TiO2 matrix and surface atomically dispersed Feδ+ -Ov structures could improve the separation efficiency of photogenerated charge carriers and facilitated the adsorption and activation of CO2 and the formation and stabilization of key *CO reaction intermediate, thereby accelerating photocatalytic CO2 reduction to produce CH4. The present work affords a simple and efficient strategy for designing single-atom Fe-regulated TiO2-based photocatalysts for a synergistic enhancement of CO2 photoreduction activity and CH4 selectivity.
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