Nano-Micro Letters
·
2026
·Vol. 18
·期 1
·404
·
IF 38.5
Zhang Yifan,Kong Kexin,Jie Hongyuan,Jin Xiaoyan,Tian Long,Liu Yipu,Pan Zhijuan,Hwang Seong-Ju,Li Liang,Wang Zhe
Dual-atom catalysts (DACs) show great promise in catalyzing oxygen reduction/evolution reactions (ORR/OER), yet facing significant challenges in achieving simultaneous high catalytic activity and stability in zinc–air batteries (ZABs). In this study, we synthesized a porous three-dimensional carbon aerogel anchored with atomically isolated FeN4/NiN4 dual sites and Ru6 nanoclusters (FeN4–Ru6–NiN4@PCA) to address these challenges. The adjacent Ru6 nanoclusters effectively regulate the geometric structures of FeN4 and NiN4 sites and catalyze the formation of a highly graphitic carbon matrix. These structural features endow FeN4–Ru6–NiN4@PCA with remarkable ORR/OER activity and stability, outperforming counterparts with only FeN4/NiN4 dual species and benchmark Pt/C and RuO2 catalysts. Density functional theory calculations reveal that Ru6 clusters induce obvious electron redistribution of FeN4/NiN4 sites and optimize their electron transfer to the key oxygen intermediates (OH*) at the rate-determining steps, thereby accelerating the ORR and OER kinetics. When employed FeN4–Ru6–NiN4@PCA as the cathode catalyst in ZABs, the resulting ZAB delivers a peak power density of 197.76 mW cm–2 and demonstrates outstanding cycling stability over 2000 h, highlighting its great potential for use in applications of energy storage device.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2026
·
IF 4.4
Xiaojing Tian,Zhiqi Qu,Jiaoyang Wang,Ying Zhang,Zhiping Li,Dandan Peng
Construct TiO 2 @MIL-101-Fe S-scheme via impregnation in situ hydrolysis. • Hierarchically distributed TiO 2 maximizes interfacial contact. • Achieves 13.91% cyclohexane conversion and retains high activity after five cycles. • Interfacial fields drive spatial charge separation and preserve redox potentials. • Hierarchical confinement and pore-mouth anchoring enable selective C H activation. The selective photocatalytic oxidation of cyclohexane is a sustainable and environmentally friendly route for KA-oil production, yet it remains limited by low conversion, moderate selectivity, and inefficient charge utilization. This study employed an in-situ TBOT hydrolysis strategy to synthesize a TiO 2 @MIL-101-Fe S-scheme heterojunction with hierarchically distributed TiO 2 nanodomains within the MOF pores, at pore mouths, and on the external surface. This spatially engineered heterostructure enhances photogenerated carrier separation, stabilizes the interface, and improves cyclohexane oxidation efficiency and KA-oil selectivity. The optimized 50 wt% composite material achieved a cyclohexane conversion rate of 14.3%, which was 2.17 times that of the original MIL-101-Fe material. Meanwhile, it still maintained a cyclohexane conversion rate of up to 13.9% and excellent catalytic activity after five cycles. Steady-state and time-resolved photoluminescence, electrochemical impedance, and transient photocurrent measurements reveal accelerated charge separation and prolonged carrier lifetime, enabled by an S-scheme heterojunction with a built-in interfacial electric field. Radical trapping and ESR studies indicate that photogenerated holes and electrons dominate C H activation, with reactive oxygen species contributing synergistically. DFT calculations confirm directional electron transfer and preserved high redox potentials. This work highlights spatially confined S-scheme heterojunctions as a general strategy to enhance photocatalytic efficiency, selectivity, and stability, offering a promising avenue for solar-driven hydrocarbon oxidation. Graphical abstract Download: Download high-res image (215KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
Energetic Materials Frontiers
·
2026
·
IF 4.7
Yi-ming Wang,Hai-long Huang,Yun-long Zhang,Yue-wen Wang,Shao-li Chen
Energetic molecular perovskite (H 2 dabco)[NH 4 (ClO4) 3 ] (DAP-4) had attracted much attention due to their strong oxidizing ability and high energy characteristics. However, the high thermal decomposition temperature would affect their potential application in the fields of propellants. In this work, Fe-doped carbon (Fe-Carbon) composites were prepared by a simple and facile high-temperature carbonization method with the iron salt-contained biomass flour materials as carbonized porous precursor. And the influence of Fe-Carbon composites on catalytic thermal decomposition and combustion on DAP-4 was studied. The results showed that porous Fe-Carbon composites with the low contents of Fe x O y showed the intrinsic catalyzed decomposition properties towards DAP-4. With the adding of 5wt% Fe-Carbon-3, the thermal decomposition temperature of DAP-4 had reduced by 25 °C from 374 °C (DAP-4) to 349 °C (DAP-4/Fe-Carbon-3). The apparent activation energy of thermal decomposition of DAP-4 had reduced by 16.25 kJ·mol -1 with the appearance of Fe-Carbon-2. DAP-4/Fe-Carbon-3 had a shorter combustion process (∼80 s) than DAP-4 (∼110 s). The maximum combustion temperature and combustion heat had increased. The catalysis thermal decomposition and combustion mechanism of DAP-4 with Fe-Carbon was provided. Fe x O y with high dispersion at the surface of carbon materials enhanced hydrogen transfer from ammonium and protonated H 2 dabco 2+ cations to perchlorate anions, which accelerated decomposition and combustion reaction of DAP-4. This work showed a novel understand of catalysis decomposition and combustion reaction of energetic molecular perovskite by metal-doped carbonization materials.
✓ 已验证
DOI
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2026
·
IF 7.9
Jing Meng,Ziyu Zhou,Yujie Guo,Jiawen Zhang,Wenfeng Hu,Xian Li,Yangen Huang,Xudong Zhang,Yi Zhao
Warp sizing and desizing are the indispensable process for high-speed and smart weaving. Biodegradable and low-cost soy protein (SP) exhibits easy film formation and is a promising candidate for use as textile sizing agent. However, current sizing agents confront the trade-off between strong yarn adhesion and easy desizing. In this work, ferrous ion (Fe (II)) was introduced as coordination bridges between SP size and yarns, inducing alterations in secondary structure of protein during sizing, thereby enhancing interfacial interactions through increased coordination and electrostatic adsorption. Compared to the original yarn, the adhesion between SP size and Fe (II) modified yarn increased by 21.78%, promoting an increase in the strength and abrasion resistance of sized yarn by 11.96% and 24.96%, respectively. High-efficiency desizing was achieved through chelation of Fe (II) with ethylenediaminetetraacetic acid (EDTA). A 97.89% desizing efficiency and 93.52% removal of surface Fe (II) were rapidly arrived under treatment in 0.1 M EDTA at 60 °C, representing increases of 32.27% and 80.19%, respectively, over water desizing. Modified SP sizing system mainly via Fe (II) coordination enable controllable high efficiency of sizing and desizing simultaneously, provides a promising approach for the development of yarn coating and sustainable textile industry. Download: Download high-res image (195KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Chong Zhang,Yu-Dong Shan,Yi-Ying Lin,Yu-Le Wang,Zheng Yang,Yong Liu,Song-Hai Wu,Xu Han
Diacetyl (2,3-butanedione) is an important ingredient used in the food and perfume industries, whose synthesis is largely constrained by environmental pollution and low selectivity. In this study, Fe-MIL-88B_NH2 has been successfully synthesized via the microwave-assisted solvothermal method, which exhibits high reactivity in acetoin oxidation, affording 81.3% conversion and 95.8% selectivity toward diacetyl under mild conditions in the presence of NHPI (N-hydroxyphthalimide). Raman and a series of characterizations reveal that O2 is activated by surface Fe(II) on Fe-MIL-88B_NH2 with the generation of ≡Fe-OO• superoxo, which then abstracts H from acetoin with the formation of diacetyl and H2O2. Quenching experiments indicate that ≡Fe-OO• superoxo on Fe-MIL-88B_NH2 is the primary oxidizing species in the oxidation of acetoin. EPR and DPD analyses further reveal that the NHPI/PINO cycle effectively shuttles H from the acetoin to ≡Fe-OO• superoxo, thus enhancing the oxidation efficiency of acetoin. This study enriches our understanding on the importance of surface superoxo species and the H-shuttle in the selective oxidation of alcohols toward ketones.
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS A-GENERAL
·
2026
·
IF 4.8
Shilong Teng,Qiang Le,Zhaodong Nan
The rational design and fabrication of high-efficiency catalysts for Fenton-like reactions have become a central research direction. As a recently emerging catalyst of great interest, the catalytic performance of bimetal-doped g-C 3 N 4 (graphitic carbon nitride) is still limited by the electron transfer. In this study, Fe and Mn co-doped g-C 3 N 4 (designated as Fe/Mn-CCN) was prepared via a co-sintering method, which an internal electric field was formed via a homojunction generation from the introduction of cyano groups (-C N) in Fe/Mn-CCN, enhancing electron transfer and catalytic activity for the degradation of tetracycline (TC) through the Fenton-like reaction. Simultaneously, it modulated the electronic density of metal active sites to enhance the adsorption capacity for TC and PMS. The rate constant of the reaction is 4.34 times higher than that of the pristine bimetallic catalyst (Fe/Mn-CN). The turnover number (TON) of Fe/Mn-CCN reaches as high as 32 × 10 −4 (g/L min) −1 , outperforming most reported graphitic carbon nitride (g-C 3 N 4 )-based catalytic systems with a significant enhancement in catalytic efficiency. Furthermore, the degradation efficiency retains 90% after continuous cyclic reactions for 12 h, demonstrating its excellent structural stability. This study provides a new perspective for the development of environmentally friendly materials used in pollutant degradation.
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122490
·
IF 7.5
Ruiqi Li,Wenxin Diao,Jie He,Fangbo Zhao,Xiao Yan Tang,Yueling Sun,Junqing Li,Lei Wang
As modern industry continues to develop rapidly, water pollution caused by antibiotics and synthetic dyes has become increasingly severe. To address the challenge of efficient treatment of such organic wastewater, a novel modified MIL-101(Fe) photocatalyst was constructed via a synergistic strategy of Cu²⁺ doping and in-situ polymerization of aniline. Under simulated solar irradiation, the composite photocatalyst achieved degradation efficiencies of 93.06% for tetracycline and 94.2% for methylene blue, exhibiting broad-spectrum photocatalytic activity toward various organic dyes. Cu²⁺ and PANI synergistically optimize the band structure, narrowing the bandgap to 2.23 eV while broadening the visible-light response range, promoting charge transport, and forming a stable Z-scheme heterojunction at the interface to suppress the recombination of photogenerated charge carriers. The results of reactive species trapping experiments showed that ·OH, h⁺, and ·O 2 - collectively governed the degradation process. The core mechanism stems from the ligand-to-metal charge transfer (LMCT) characteristics of MIL-101(Fe), the electron-trapping effect of Cu²⁺, and the conjugated conductive network of PANI. In addition, the composite photocatalyst exhibited strong resistance to ionic interference and maintained degradation efficiencies above 80% after five consecutive cycles, demonstrating excellent stability and reusability. This work provides an efficient photocatalytic material and a promising strategy for the comprehensive treatment of organic wastewater.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Jinlin Hu,Haojie Zhang,Simeng Xia,Yishu Cai,Zhou Shi,Lin Deng
The widespread occurrence of carbamazepine (CBZ) in aquatic environments necessitates efficient water treatment technologies. This study developed a cobalt-doped iron oxychloride (Co-FeOCl) catalyst via a facile calcination method to activate peracetic acid (PAA) for enhanced degradation of CBZ. The incorporation of Co into the FeOCl structure dramatically boosted the catalytic performance, with 0.5Co-FeOCl exhibiting superior activity compared to pristine FeOCl. The 0.5Co-FeOCl/PAA system achieved an apparent rate constant of 0.039 min⁻ 1 , 19.5 and 5.6 times higher than that of the PAA alone (0.002 min⁻ 1 ) and FeOCl/PAA (0.007 min⁻ 1 ) systems, respectively. Mechanistic investigations revealed that the degradation was primarily driven by organic radicals (CH 3 C(O)OO• and CH 3 C(O)O•) and high-valent metal species (Co(IV) and Fe(IV)). The Co doping established synergistic Fe(II)/Fe(III)-Co(II)/Co(III) redox cycles, effectively accelerating the rate-limiting Fe(III) reduction step and facilitating continuous generation of reactive species. XPS analysis confirmed an increased surface Fe(II) content after reaction, supporting this synergistic mechanism. Density functional theory (DFT) calculations proved that Co sites exhibit superior adsorption capacity for PAA compared to Fe sites on three main facets. This work not only presents 0.5Co-FeOCl as a highly efficient and stable catalyst for PAA activation but also provides fundamental insights into the synergistic mechanisms in bimetallic/PAA systems for remediating refractory organic pollutants.
✓ 已验证
DOI
高影响因子
Water Cycle
·
2026
·
IF 7.9
Yuze Li,Wei Li,Yue Yuan,Jian Zhang,Ningruo Wang,Heng Zhang,Xuejia Li,Yujia Xiang,Bo Lai,Peng Zhou,Chuanshu He,Yang Liu
The inherent inefficiency associated with the utilization of micro-concentration hydrogen peroxide (H 2 O 2 ) in conventional Fenton systems arises from the sluggish cycling between Fe(III) and Fe(II). To address this fundamental limitation, the present study demonstrates that complexes formed between Fe(III) and fulvic acid (FA) can effectively harness visible-light-driven ligand-to-metal charge transfer (LMCT). This photochemical process facilitates a synergistic dual-pathway activation of H 2 O 2 : 1) Fe(II) generated through intramolecular electron transfer reduction of the Fe(III)-FA complex directly activated H 2 O 2 ; 2) In the photoexcited *Fe(III)-FA complex, the reduction of the key intermediate *OOH lowered the activation energy barrier, facilitating the formation of ∙OH and O 2 ·- radicals. Moreover, at a stoichiometric molar ratio of H 2 O 2 to contaminant set at 1:1, contaminant removal efficiency achieves an impressive 95%. This light-enhanced mechanism establishes a new paradigm for efficient micro-concentration -level oxidation using H 2 O 2 , demonstrating exceptional effectiveness in eliminating trace pollutants.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122324
·
IF 7.5
Ze Liu,Peng Liao,Ao Qian,Zheng Wang,Bowen Yang,Jian Wang,Na Zhang,Shiwei Xie
The efficient decontamination and resource recovery of organophosphonate-laden wastewater remain a critical environmental challenge. In this study, a sequential “electrocoagulation-oxidation” coupled process integrating iron electrocoagulation (EC) with peroxymonosulfate (PMS) activation was developed for the degradation of nitrilotris(methylene phosphonic acid) (NTMP). The initial EC stage achieved near-complete (∼100% within 20 min) NTMP removal via adsorption, and subsequent PMS oxidation of the iron precipitates under optimal conditions (50 mA, Fe:PMS molar ratio of 3:1 transformed 53.20% of the adsorbed NTMP into orthophosphate. Notably, the sequential post-addition of PMS yielded significantly superior mineralization efficiency compared to the pre-addition strategy. Advanced solid-phase characterizations revealed that the activation mechanism is driven by in-situ generated structural Fe(II), predominantly hosted within magnetite formed under neutral initial pH. Mechanistic investigations using radical quenching and electron paramagnetic resonance (EPR) spectroscopy identified sulfate radicals (SO 4 • - ) as the dominant reactive species, with a minor contribution from Fe(IV). The oxidation proceeded primarily via surface-mediated C-P bond cleavage, resulting in the in-situ immobilization of the released orthophosphate on the iron mineral matrix. Crucially, phytotoxicity assays using perennial ryegrass confirmed that this oxidative treatment significantly reduced the ecotoxicity of the precipitates and converted the pollutants into a bioavailable phosphorus source. This work establishes the sequential EC-PMS process as a promising, sustainable strategy for the simultaneous decontamination of phosphonates and the recovery of phosphorus resources.
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Wei Jiang,Yajun Li,Hongcheng Li,Yuhao Fu,Yi Li,Jian Ren,Qian Li,Limei Pan,Jian Yang
In this work, a unique three-dimensional (3D) network NiFeCoP@Ti₃C₂Tₓ composite, consisting of Co, Fe co-doped Ni 2 P (NiFeCoP) nanosheets anchored on Ti₃C₂Tₓ nanosheets via heterojunction, was situ constructed by phosphidizing the NiFeCo-LDH@Ti₃C₂Tₓ precursor. The 3D network structure establishes a 3D conductive network while generating a built-in electric field at the heterointerface, which efficiently accelerates electron/ion transport and simultaneously improves the structure stability of the electrode. DFT calculations demonstrate that Co doping further optimizes the electronic structure of NiFeCoP, introduces additional active sites, thereby promoting electrochemical reaction kinetics. Meanwhile, the synergistic effect among Ni, Fe, and Co with different redox potentials effectively buffers the volume changes during charge/discharge processes. Consequently, NiFeCoP@Ti₃C₂Tₓ as lithium ion batteries (LIBs) anode shows outstanding electrochemical performance at different current density (950 mAh/g after 340 cycles at 0.5 A/g, 816 mAh/g after 900 cycles at 1 A/g, 541 mAh/g after 1000 cycles at 2 A/g).
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Hao Pu,Weiqing He,Chun Yan,Yingdan Zhu,Lingyu Yue,Haibing Xu,Gang Chen,Xiaochen Yu
The interfacial bonding performance between carbon fibers and the resin matrix is a critical factor limiting the performance optimization of carbon fiber reinforced polymer composites. This work utilizes Fe 3+ as the iron source and fumaric acid as the organic ligand to construct the precursor of iron-based metal–organic framework (MIL-88-A) through in situ growth on carbon fiber surfaces. Subsequently, the grafting of magnetic Fe 3 O 4 nanoparticles onto carbon fiber surfaces was accomplished via a pyrolytic treatment. These modified carbon fiber reinforced epoxy composites were then fabricated using vacuum-assisted resin infusion (VARI). The results indicate that the interfacial shear strength (IFSS) and interlaminar shear strength (ILSS) of the Fe 3 O 4 nanoparticle-modified CF/EP composites reached 106.4 MPa and 68.8 MPa, respectively, representing significant improvements of 63.7% and 48.9% compared to those of the desized carbon fiber composites. This enhancement can be attributed to the fact that the magnetic Fe 3 O 4 nanoparticles not only improved the wettability between the carbon fiber surface and the epoxy resin but also increased the surface roughness of the fibers, thereby enhancing mechanical interlocking and stress transfer efficiency in the interfacial region. Meanwhile, owing to the presence of magnetic Fe 3 O 4 nanoparticles, the CF/EP composites exhibit outstanding electromagnetic shielding performance with an average shielding effectiveness of 47.1 dB in the X-band. This study offers new design insights for improving the interfacial properties of carbon fiber-reinforced polymer (CFRP) composites and expanding their multifunctional applications.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）