Frontiers of Chemical Science and Engineering
·
2023
·Vol. 17
·期 7
·930-941
·
IF 4.5
Tian Guodong,Duan Chao,Zhou Bingxu,Tian Chaochao,Wang Qiang,Chen Jiachuan
Membrane technology for wastewater remediation has aroused wide interest owing to its unique properties and potential applications. However, it remains challenging to explore green, efficient and robust membrane material and technique for complex wastewater treatment. Herein, we proposed using a simple electrospinning and in situ seeding method to fabricate a lignin-based electrospun nanofiber membrane (LENM) decorated with photo-Fenton Ag@MIL-100(Fe) heterojunctions for efficient separation of oil/water emulsions and degradation of organic dye. Thanks to the embedded lignin in LENM, an ultrahigh MIL-100(Fe) loading (53 wt %) with good wettability and high porosity was obtained. As a result, the hybrid Ag@MIL-100(Fe)/LENM exhibited excellent oil/water emulsions separation efficiency (more than 97%) without a compromise of water flux. Moreover, the hybrid membrane showed an excellent dye removal with degradation of 99% methylene blue within 30 min under illumination, which is attributed to a synergy of dye adsorption/enrichment and photo-Fenton catalytic degradation from Ag@MIL-100(Fe). Therefore, the lignin-based photo-Fenton hybrid membrane can lay the foundation for the preparation and application of green, sustainable and versatile membrane materials and technologies for efficient complex wastewater remediation.
✓ 已验证
DOI
高影响因子
CELLULOSE
·
2023
·Vol. 30
·期 15
·9607-9623
·
IF 5.7
Wang Zhile,Yu Dehai
The photocatalytic degradation of organic pollutants represents an efficacious, energy-conserving, and eco-friendly methodology. MIL-101 is a porous crystalline material composed of metal ions (or metal clusters) and organic linkers. As a prominent metal-organic framework material, MIL-101 exhibits remarkable thermal and chemical resilience, rendering it ideal for diverse applications encompassing gas storage, separation, and catalytic processes. However, its potency in the degradation of dye molecules is impeded by its innate hydrophobicity and predisposition to precipitate in aqueous solutions. In this study, MIL-101(Fe)/cellulose nanocrystal (CNC) hybrid nanoparticles (MCs) with high photocatalytic activity were prepared by in situ growth. Owing to their unique amphiphilicity and interfacial adsorption, the Pickering emulsions stabilised by MCs showed uniform particle size and stability. The MCs were uniformly adsorbed at the oil–water interface of the emulsion and dispersed in the water phase through a three-dimensional network with clusters. This facilitated complete contact of the MCs with pollutants, thereby significantly increasing the photocatalytic efficiency. The tuneable wettability of MIL-101(Fe) induced by CNCs considerably affected the stabilization and photocatalytic degradation performance. In the presence of 0.5 wt% CNCs, the MCs had a three-phase contact angle of 92°, resulting in the highest photocatalytic degradation rate and emulsion stability of the samples studied herein. An emulsion was produced with a constant emulsification index of 100% by using 0.4 wt% MCs and an oil-phase volume fraction of approximately 0.2. The MC-stabilised emulsion system exhibited high photocatalytic degradation efficiency for Rhodamine B. Moreover, the MCs could be recycled several times while ensuring a degradation efficiency within an acceptable range. Herein we introduce a new approach for improving and fabricating green, sustainable photocatalysts for the degradation of organic pollutants in aqueous systems.
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Mengmeng Yan,Kang Xu,Yu-Xin Chang,Zhi-Yu Xie,Sailong Xu
Environmentally friendly P2-type layered iron manganese oxides appear to be one of the most potential cathode materials for sodium-ion batteries (SIBs). However, their practical application is hindered by the unfavorable phase transitions, dissolution of transition metals, and poor air stability. One effective strategy by either single-cation doping or high-cost Li involved co-doping is used to alleviate the problems. Here, low-cost Cu/Ti co-doping is introduced to boost P2-Na 0.7 Cu 0.2 Fe 0.2 Mn 0.5 Ti 0.1 O 2 as an air and electrochemical stable cathode material for SIBs. The resulting electrode delivers an initial capacity of 130 mAh g −1 at 0.1C within 2.0–4.2 V, a reversible discharge capacity of 61.0 mAh g −1 at a high rate of 5C and a capacity retention ratio exceeding 71.1% after 300 cycles. In particular, the co-doped crystal structure is well-maintained after 1 month of exposure to air, and even 3 days of soaking in water. Furthermore, the enhancement is elucidated by the effectively mitigated P2–Z and the completely suppressed P2–P′2 phase transitions, the decreased volume variation proved by in-situ X-ray diffraction (XRD), as well as the lowered transition-metal dissolution evidenced by inductively coupled plasma optical emission spectrometer (ICP-OES) and X-ray photoelectron spectroscopy (XPS). The low-lost Cu/Ti doping strategy could thus be effective for designing and preparing environmentally friendly and high-performance cathode materials for SIBs.
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 4.4
Zeng Fanen,Xu Bing,Jing Chenglong,He Xiaodong,Li Chunyang,Li Guojun
High-entropy oxides (HEOs) have attracted considerable attention for energy storage applications because of their multi-principal synergistic effects and excellent structural stability. In this study, polyethylene glycol (PEG) was used as a surfactant to synthesize (CrMnFeCoNi) 3 O 4 HEOs by tuning the molar ratio of PEG to metal cations ( P / M ). The results show that PEG plays three roles during synthesis, serving simultaneously as a coordinating dispersant, a structure-directing agent, and an in situ porogen. The optimized HEO ( P / M = 4/5) exhibits a uniform nanoparticle morphology and a well-developed pore architecture, delivering a specific capacitance of 557.6 F g –1 . Kinetic analysis further indicates that its pseudocapacitive behavior is from a cooperative effect involving both capacitive-controlled and diffusion-dominated mechanisms. The assembled asymmetric supercapacitor device achieves an energy density of 64.2 Wh kg –1 at a power density of 375.3 W kg –1 and retains 81.3% of its capacitance after 10000 charge/discharge cycles. These outstanding electrochemical properties highlight the promise of PEG template (CrMnFeCoNi) 3 O 4 HEOs for advanced energy storage applications. Graphical abstract
✓ 已验证
DOI
高影响因子
MATERIALS LETTERS
·
2025
·
IF 2.7
Yueyue Sun,Jiaming Yang,Zhengrong Liu,Chaofan Yin,Zixuan Xue,Zilin Zhou,Qiankai Zhang,Jiajia Cui,Jun Zhou,Kai Wu
Solid oxide fuel cells (SOFCs) are a promising energy conversion technology with high efficiency and environmental compatibility. Applied as anode materials, perovskite oxides govern the electrochemical performance, with an exsolution strategy for enhancing catalytic activity. In this work, Sr 2 Fe 1.5 Mo 0.5 O 6-δ exhibits an A-site deficient surface enriched with Sr and O vacancies via the acid etching method, thereby exposing B-site cations and facilitating the nucleation process during exsolution. The optimized Fe nanoparticles distribution enhances the H 2 adsorption and H 2 O desorption, resulting in a 25 % increase of the peak power density to 1.04 W cm −2 from 0.83 W cm −2 at 800 °C. The ingenious design of surface reconstruction demonstrates significant potential in advancing perovskite-based electrocatalysts for SOFCs.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Songtao Dong,Tian-yu Zhang,Jing Luan,Honglei Wang,Lei Wang,Hongbo Ju
As a viable p-type thermoelectric (TE) material, Cu 2 SnSe 3 has attracted increasing attention, primarily due to its moderate band gap and tunable electronic structure. Nevertheless, its practical TE utilization is significantly limited by its inherently high lattice thermal conductivity ( κ l ) and suboptimal power factor. Herein, a Fe/Mn co-doping strategy is proposed to concomitantly regulate electrical and thermal transport properties, thereby achieving a remarkable improvement in the overall TE performance. A series of Cu 2 Sn 1–2x Fe x Mn x Se 3 (x = 0, 0.02, 0.04, 0.06) ceramic samples were fabricated via vacuum-based melting followed by hot-press sintering, which concurrently introduced abundant lattice defects and a CuSe secondary phase. These multi-scale structural features significantly enhance phonon scattering, causing a substantial reduction in thermal conductivity. Consequently, the total thermal conductivity of Cu 2 Sn 0.92 Fe 0.04 Mn 0.04 Se 3 is reduced to a minimum value of 0.432 W m −1 K −1 at 773 K. Meanwhile, Fe/Mn co-doping notably increases the charge carrier concentration ( n ), resulting in a dramatic enhancement in electrical conductivity—from 189.8 S cm −1 for Cu 2 SnSe 3 to 1381 S cm −1 for Cu 2 Sn 0.92 Fe 0.04 Mn 0.04 Se 3. Although the Seebeck coefficient exhibites a slight to moderate reduction, the significant increase in electrical conductivity prevails, yielding a substantially optimized power factor ( PF ). A maximum PF of 500.1 μW m −1 K −2 was achieved, together with a peak ZT value of 0.89 at 773 K, representing a 5.23-fold enhancement compared to the undoped Cu 2 SnSe 3 sample ( ZT = 0.17). In addition to enhancing thermoelectric performance, Fe/Mn co-doping significantly improves the mechanical of Cu 2 SnSe 3 . Specifically, the Young’s modulus ( E ) and hardness ( H ) of Cu 2 Sn 0.92 Fe 0.04 Mn 0.04 Se 3 increased by 18.2% and 25.2%, respectively, relative to the undoped sample—demonstrating markedly enhanced mechanical robustness. These results establish Fe/Mn co-doping as an effective and versatile strategy for decoupling electrical and thermal transport in Cu 2 SnSe 3 -based materials, thereby providing a promising pathway toward high-performance thermoelectric materials with superior structural integrity.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2026
·
IF 10.7
Zhiwei Liu,Huiqi Ge,Zhiqin Cao,Bowen Li,Rui Yu,Boya Wang,Heng Su,Lina Yue,Junxian Hou,Qian Xu
O3-type Ni-Mn-based layered oxides as cathode materials have received much attention due to their high theoretical capacity in sodium-ion batteries (SIBs). However, the occurrence of irreversible phase transition during the charge-discharge process will lead to poor structural stability and cycling performance. Herein, a high-entropy layered oxide of Na 0.85 Ni 0.25 Cu 0.12 Ti 0.15 Li 0.08 Ca 0.02 Fe 0.15 Mn 0.31 O 2 (NCFMTLC-1) was prepared by optimizing the ratio of Fe to Mn. It is found that Fe element plays a significant role in the optimization of crystal lattice and the regulation of configurational entropy, improving the cycling and rate performance of materials. In-situ X-ray diffraction combined with DFT calculations reveal that NCFMTLC-1 exhibits superior structural stability with minor reversible phase transition during charge/discharge processes, in stark contrast to its Fe-free counterpart. Therefore, the prepared NCFMTLC-1 cathode demonstrates impressive rate performance (discharge capacity of 96.1 mAh/g at 5C) and cycling stability (83.4% capacity retention after 400 cycles). This work demonstrates that adjusting Fe/Mn ratio is an effective strategy to improve the electrochemical properties of high-entropy materials, offering valuable guidance for the future design of advanced cathode materials for SIBs.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2026
·
IF 10.6
Jiajia Wu,Shijie Yang,Guanhong Lu,Xiao Wang,Jing Sun
Efficient photocatalytic abatement of volatile organic compounds (VOCs) critically relies on effective separation of photogenerated electron-hole pairs and the generation of reactive oxygen species (ROS). Constructing S-scheme heterojunctions is an effective strategy to promote charge separation while preserving strong redox potentials. Herein, WO 3 /MIL-100(Fe) composites featuring interfacial Fe-O-W bonds were synthesized via a one-pot hydrothermal method for photocatalytic degradation of gaseous toluene. The optimized 15%WO 3 /MIL-100(Fe) heterojunction exhibits a 1.3-fold enhancement in toluene removal efficiency (52.6%) and twice the CO 2 conversion rate relative to pristine MIL-100(Fe), along with enhanced degradation for o-xylene and styrene, demonstrating broad-spectrum applicability. The interfacial internal electric field (IEF) in WO 3 /MIL-100(Fe) promotes efficient charge carrier separation and accelerates electron transfer. The S‑scheme heterojunction directs the reductive electrons in the MIL-100(Fe) conduction band and oxidative holes in the WO 3 valence band to generate superoxide radicals (•O 2 ⁻) and hydroxyl radicals (•OH), respectively, enabling efficient ring opening and deep degradation. Moreover, the load of WO 3 enhances Lewis acidity and introduces additional adsorption sites, strengthening the interaction with toluene. This work highlights the rational design of MOF-based S-scheme heterojunctions for durable volatile organic compound abatement.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2026
·
IF 10.4
Bo Zhao,Xiuxian Mo,Jiayao Wang,Akang Dan,Tong Chen,Dan Ouyang,Xiaopeng Hu
Dual-mode sensor integrates fluorescence/colorimetric detection for cross-validated acetamiprid monitoring. • Synergistic recognition by MIP and aptamer enhances specificity in complex food matrices. • The MIL-88B (Fe) was used as a dual-signal probe triggered by PPi. • The integration of smartphone-based colorimetric readout and machine learning enhances field applicability. • Achieves ultra-sensitive detection with high recovery in real samples. This work presents a smartphone-integrated, fluorescence/colorimetric dual-mode sensing platform that combines fluorescence and colorimetric detection with support vector regression (SVR) for monitoring of acetamiprid in food. The system employs a sandwich-structured mechanism using MIPs/Fe 3 O 4 as capture probes and aptamer-functionalized MIL-88B(Fe) as bifunctional signal probes. Uniquely, pyrophosphate (PPi) triggers the disassembly of MIL-88B(Fe), synchronously releasing fluorescent 2-aminoterephthalic acid ligands and Fe 3+ ions, which subsequently catalyze Prussian blue formation for colorimetric readout. Furthermore, the integration of smartphone imaging and a SVR mode allows for intelligent translation of RGB color features into precise acetamiprid concentrations, facilitating rapid analysis. The biosensor demonstrates exceptional performance with detection limits of 41.0 pg mL −1 (fluorescence) and 45.0 pg mL −1 (colorimetric), maintaining high specificity in complex matrices. Successful application in fruit and vegetable extracts confirmed its practical utility, offering a sensitive, cross-validation, and field-deployable strategy for food safety monitoring. Download: Download high-res image (176KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Linlin Wang,Yafei Guo,Wenhui Zhao,Pengfei Wang,Zonglin Liu,Ting-Feng Yi
A unique 3D hierarchical network consisting of 0D carbon dodecahedra and 1D carbon nanotubes is successfully constructed via in-situ growth. • Phosphorus doping serves as a versatile modulator to induce 1D morphology formation and optimize the electronic density of iron active centers. • The optimized N, P co-doped Fe-N-C catalyst exhibits an outstanding half-wave potential of 0.884 V in alkaline media. • The assembled zinc-air battery achieves a remarkable operational lifespan exceeding 1300 h with superior structural integrity. Developing highly efficient and durable non-precious metal electrocatalysts for oxygen reduction reaction (ORR) remains a critical challenge for the practical application of zinc-air batteries (ZABs). Herein, we successfully synthesized a robust N, P-codoped Fe-N-C catalyst featuring a unique 0D/1D intertwined architecture through a phosphorus-induced heteroatom-modulation strategy. By utilizing FePc-encapsulated ZIF-8 as a precursor, the in-situ growth of 1D carbon nanotubes from 0D carbon dodecahedrons was achieved, constructing a 3D hierarchical conductive network. Experimental and mechanistic analyses reveal that P-doping serves as the key morphology director. It not only induces the formation of structural-stable 1D nanotubes to enhance electron transfer but also modulates the electronic density of Fe centers to elevate electro-oxidation resistance. Consequently, the optimized catalyst exhibits a superior half-wave potential (E 1/2 ) of 0.884 V (vs. RHE) in alkaline media. Remarkably, the as-assembled ZAB achieves an exceptional stability of over 1300 h, demonstrating the superior structural integrity and durability of the 0D/1D network. This research offers a strategic design for engineering high-performance and stable Fe-N-C catalysts through synergistic 0D/1D architecture construction. Phosphorus-induced modulation facilitates the in-situ growth of 1D nanotubes from 0D dodecahedrons, constructing an integrated 0D/1D hierarchical Fe-N-C structure. This structural engineering optimizes the electronic environment of Fe sites for enhanced ORR kinetics (E 1/2 = 0.884 V) and endows practical zinc-air batteries with an outstanding stability exceeding 1300 h. Download: Download high-res image (283KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2026
·
IF 15.6
Feng Chen,Zhuang Ye,Haojie Liang,Haixia Zhang,Junjie Guo
Axial coordination of heteroatoms to the metal sites in M-N-C catalysts exerts a direct modulation of the electronic distribution by forming a bond with the metal center, thereby optimizing its intrinsic oxygen reduction reaction (ORR). However, the steric hindrance introduced by axially coordinated heteroatoms limits reactant accessibility, potentially suppressing the overall catalytic activity. This study provides an HF wet etching strategy to synthesize a hollow porous ZIF-derived nitrogen-doped carbon-supported F-axially coordinated single-atom iron catalyst (F-Fe 1 @HNC), which simultaneously achieves F-axial coordination and high reactant accessibility. Consequently, the F-Fe 1 @HNC catalyst demonstrates outstanding ORR performance in both alkaline (0.919 V) and acidic (0.797 V) electrolytes. When employed as a cathode material in a zinc-air battery, F-Fe 1 @HNC achieves an open-circuit potential of 1.477 V and a power density of 256 mW cm −2 , significantly outperforming commercial Pt/C catalysts. Density functional theory confirmed that F-coordination altered the electronic distribution at Fe-N-C sites, optimizing the adsorption of oxygen-containing intermediates. This work highlights the importance of electron-withdrawing groups in creating the electron asymmetry at Fe-N-C sites, providing profound insights into designing highly efficient ORR catalysts. The F-axis coordinated Fe-N-C catalyst breaks the limitation imposed by spatial steric hindrance and significantly improves the oxygen reduction reaction (ORR) performance. Download: Download high-res image (252KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
Crystals
·
2026
·Vol. 16
·期 7
·471
·
IF 2.9
Fufei Deng,Hui Yang,Changling Zhuang
Selective laser melting (SLM) can effectively suppress metallurgical defects inherent to conventional manufacturing; however, subsequent aging treatments essential for engineering applications introduce secondary precipitates that alter the electrochemical homogeneity of the matrix. The underlying mechanism by which such precipitation behavior governs corrosion resistance remains elusive. In this study, a Fe-30Mn-8Al-1.5C-2.5Ni steel was investigated to elucidate the corrosion morphology and electrochemical behavior of the as-built, 450 °C-aged, and 750 °C-aged specimens during immersion in a 3.5 wt.% NaCl solution. The results demonstrate that the inherent Mn microsegregation and high-density subgrain boundaries induced by SLM trigger preferential localized anodic dissolution on the surface of the as-built sample, culminating in the formation of a loose, porous manganese oxide product layer. Aging treatment at 450 °C induces extensive precipitation of κ-carbides within grain interiors and along grain boundaries, accompanied by localized depletion of Al and Mn at the phase interfaces. A pronounced micro-galvanic coupling established between the κ-carbides and the adjacent Al-depleted zones directly compromises the continuity of the passive film, thereby further deteriorating the corrosion resistance. In contrast, aging at 750 °C relieves the residual stress and eliminates the as-built elemental microsegregation. The resulting compositional homogenization of the matrix reduces the localized electrochemical driving force, which promotes a uniform reaction of Al at the surface to construct a continuous, compact Al-rich passive film, thereby sustaining the highest charge-transfer resistance during long-term immersion. This work elucidates the correlation among the intrinsic defects of SLM, aging-induced solute-depleted zones, κ-carbide precipitation, and localized micro-galvanic corrosion, providing a fundamental basis for tailoring the microstructure and corrosion resistance of additively manufactured lightweight steels.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）