GREEN CHEMISTRY
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2026
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IF 9.2
zonghao xu,Zongyu Guan,Yan Song,Xiran Zhao,Yaodong Yuan,Zhipeng Yan,Junhang Tian,Xueyi Sun,Biwei Xiao,Weidong Zhuang
Direct recycling of spent LiFePO₄ (LFP) cathodes is a sustainable and energy-efficient strategy for recovering valuable materials while preserving the intrinsic olivine structure. Herein, we report a LiI-assisted regeneration approach that achieves electronic structure reconstruction and reinforced Fe–O d–p orbital hybridization, enabling simultaneous repair of structural defects and enhancement of Li⁺ transport kinetics. The reductive I⁻ ions promote Fe³⁺→Fe²⁺ conversion and effectively eliminate Fe–Li antisite defects, while Li⁺ replenishment restores the stoichiometry of degraded LFP. Density functional theory (DFT) calculations reveal that LiI triggers a downward shift of the Fe 3d band center and an upward shift of the O 2p band center, narrowing their energy separation and strengthening Fe–O covalency. These electronic modifications reduce Li⁺ migration barriers and reconstruct continuous Li⁺ transport channels, as further validated by ab initio molecular dynamics simulations. In-situ XRD measurements confirm reduced unit-cell volume fluctuations and enhanced FeO₆–PO₄ framework stability, demonstrating improved structural reversibility during cycling. Benefiting from this coupled structural–electronic reconstruction, regenerated LFP delivers 146.9 mAh g⁻¹ at 1 C and retains 97.4% capacity after 500 cycles, outperforming the spent material. This work proposes a green and low-energy direct regeneration route for cathode materials and provides important theoretical guidance for their efficient repair and regeneration.
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高影响因子
Journal of Environmental Chemical Engineering
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2023
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IF 7.7
Peishan Li,Hui Ma,Sijia Qian,Yi Chen,Bo Lai,Shengyan Pu
Ferric sulfide is an appealing activator in persulfate (PS) activation process for degrading pollutants from aqueous environment, but the drawback of easy-agglomeration lead to a low utilization efficiency. In this study, we modified nFeS with sodium carboxymethyl cellulose (CMC) to improve its stability, and the performance for PS activation and p -nitrophenol (PNP) degradation is tested. After modification, the size further decreased from 23.8 to 18.4 nm, but with higher stability and catalytic reactivity. The CMC and nFeS is bonded by bidentate bridging of Fe-O bond. The degradation performance increased ∼7 times. The PS activation with CMC-nFeS activator shows higher reaction rate constant (0.093 min -1 ) with ∼90% of PNP removed compared to the pure nFeS with ∼80% of PNP removal at a low rate (0.014 min -1 ) with the same condition of 0.6 g/L activator, 8 mM PS, room temperature and initial pH in 90 min. Acidic condition and high temperature were more favorable for releasing Fe(II) to activate PS and produce active radicals. SO 4 - ·and HO·radicals played critical roles to attack on PNP. Detailed XPS analysis of the activator before and after reaction described the removal pathway as heterogeneous and homogeneous systems. Density Functional Theory (DFT) simulation results confirmed that CMC addition effectively decreased the interaction energy and improved adsorption ability of PS onto the activator surface.
研究领域:
环境科学
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化学工程
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材料科学
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DOI
高影响因子
Food Bioscience
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2025
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IF 5.9
Cheng Yang,Pei-Zhi Dong,Zhou-Ning Jiang,Yanan Li,Yue-Hong Pang
The illegal addition of phosphodiesterase-5 (PDE-5) inhibitors in functional food poses significant food safety risks and health issues, requiring a sensitive and effective enrichment and detection method. Herein, a magnetic COFs (Fe 3 O 4 @TpDBA) was prepared by a layer-by-layer growth strategy. TpDBA was synthesized through the condensation of 1,3,5- Triformylphloroglucinol (Tp) and 4,4′-diamino-(1,1′-biphenyl)-3,3′-dicarboxylic acid (DBA). Fe 3 O 4 @TpDBA was used as an adsorbent for magnetic solid-phase extraction (MSPE) of PDE-5 inhibitors (sildenafil, tadalafil, and vardenafil), which enabled their efficient enrichment within 2 min. The lower binding energy value obtained through molecular docking calculations indicates stronger binding ability. The prepared Fe 3 O 4 @TpDBA exhibited high chemical stability (resistant to acid, alkali and organic reagents) and good reusability (10 adsorption/desorption cycles). Coupled with high-performance liquid chromatography-tandem mass spectrometry, Fe 3 O 4 @TpDBA-MSPE exhibited great potential in PDE-5 inhibitors. The developed method was optimized and validated, exhibiting a wide linear range and low limits of detection. Moreover, it was successfully applied to the determination of three PDE-5 inhibitors in five functional foods.
研究领域:
食品安全
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分析化学
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药物化学
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DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
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2025
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IF 8
Chengdong Li,Yuxiang Wang
Significant volume shrinkage during the ambient pressure drying is a common defect in the synthesis of silica xerogels, leading to densification, collapse of pore structure, and a decline in mechanical properties. Conventional methods struggle to produce silica xerogels with both low bulk density and high mechanical properties without additional post-treatment. Herein, we introduce a novel approach by ultilizing trace amounts of iron/silicon oxy-hydroxide co-precipitate trace-incorporated [-Fe-O] m -[Si-O-] n colloids as the foundational building blocks for polymethylsilsesquioxane (PMSQ) xerogels. These colloids were synthesized through the condensation of hydrated iron cations with methyltriethoxysilane (MTES) hydrolysates, which also influence the aggregation and sedimentation of MTES sols. The impact of the hydrolysis time of MTES on the chemical compositions, phase structures, microstructures of the iron/silicon oxy-hydroxide co-precipitates, and mechanical properties of PMSQ xerogels were investigated. The optimal hydrolysis time of MTES in the cetyltrimethylammonium bromide/ferric chloride (CTAB/FeCl 3 ) aqueous solution was 5.0 h, endowing MTES sols containing a trace of ∼0.046 mg/mL iron/silicon oxy-hydroxide co-precipitates. This process yielded PMSQ xerogels with a high compression strength of 0.316 MPa and maximum compression strain of 79.3 %. Deviating from this optimal hydrolysis time by 1.0 h might significantly reduce the compression strength of the as-synthesized PMSQ xerogels by 18.0 %-58.5 % and decrease the maximum compression strain by 6.6 %-15.4 %. Notably, the tiny incorporation of the iron phase (∼0.1 mol%) into the Si-O-Si backbone endowed the PMSQ xerogels with a minimal volume shrinkage ratio of 5.5 %, an ultra-low bulk density of 69.8 mg/cm 3 , and the highest specific strength of 4.527 kPa·m 3 /kg recorded among all aerogels and xerogels in the literature. The strategy of forming iron/silicon oxy-hydroxide co-precipitates to strengthen and toughen silica xerogels by modulating the hydrolysis/condensation kinetics of hydrated iron cations and silica sources holds promise for maximizing mechanical properties and minimizing bulk density under industrially relevant conditions.
研究领域:
材料科学
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化学工程
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Han Lv,Zhicheng Cui,Qi Zhao,Chaofan Zhang,Bin Cui,Dandan Zhou
Both iron-reducing bacteria (IRB) and iron are loaded to anode during the microbial electro-Fenton (MEF) system, which simultaneously achieves the refractory wastewater treatment and iron circulation. Meanwhile, the amounts of iron play a pivotal role in both performance of microbial electrochemical system (MES) and regulation of the microbial community and metabolism. Therefore, additional α-Fe 2 O 3 was adopted in MEF system, and then the regulation mechanism for anodic microorganism was thoroughly revealed in this study. When α-Fe 2 O 3 loading increased to 2 mg/cm 2 , phenol removal rate improved by 3.8 times and the anaerobic biofilm thickness of 1000 μm on the anode surface; following, current density increased by 96.2 % and current resistance reduced by 50.5 %. Metatranscriptomic sequencing indicated that α-Fe 2 O 3 could improve microbial metabolism activity via up-regulating the enzymes associated with tricarboxylic acid cycle (TCA cycle). Meanwhile, Shewanella abundance increased 326-fold, and α-Fe 2 O 3 up-regulated the expression of Type II secretion system and cytochrome c synthesis, promoting extracellular electron transfer (EET) process via direct contact pathway. Overall, this study provided a novel strategy for optimizing the performance of MEF system.
研究领域:
环境工程
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微生物电化学
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生物技术
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废水处理
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材料科学
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DOI
高影响因子
TALANTA
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2025
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IF 6.1
Xiao Liang,Cheng-Guo Zhan,Juan Yang,Ji-Tao Li,Wen-Bo Zhao,De-Zhi Yang,Ya-Ling Yang,Zi-Tao Zhong
Transferrin (TRF) is the main iron-containing protein in plasma, responsible for carrying iron from digestive absorption and released from the erythrocyte degradation. The plasma TRF levels can be used to diagnose anemia and monitor treatment. Herein, a sandwich type biosensor was developed for the sensitive and efficient TRF detection utilizing the affinity of boronic acid and specific recognition of antibody. TRF can be captured by the facilely synthesized phenylboronic acid decorated SiO 2 @Fe 3 O 4 magnetic nanoparticle (PBA-SiO 2 @Fe 3 O 4 ), and then the antibody functionalized Au,Pt,Cu@polydopamine (Ab-Au,Pt,Cu@PDA) with peroxidase-like activity was bond to TRF to form the sandwich conjugate. After the prompt magnetic separation and catalysis with the chromogenic substrates (TMB and H 2 O 2 ), the distinct color development can be observed and measured for the TRF quantification. The proposed method shows satisfied performance with a detection range of 0.128–2000 ng/mL and LOD of 0.051 ng/mL. Moreover, this approach possesses excellent stability and simple operation, without complicated sample pretreatment. Consequently, this biosensor poses a significant potential for the diagnosis and monitoring of abnormal TRF levels-related diseases.
研究领域:
纳米技术
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生物传感器
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生物分析化学
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免疫检测
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磁分离
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临床诊断
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DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2020
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IF 7.489
Xuanxuan Jia,Hao Liu,Yu Zhang,Wei Chen,Qing Tong,Guangxia Piao,Chuanzhi Sun,Lin Dong
In recent years, Fe-based catalysts for the selective catalytic reduction of NO with NH 3 (NH 3 -SCR) have been attracting more attention. In this work, a novel Fe-Sb binary metal oxide catalyst was synthesized using the ethylene glycol assisted co-precipitation method and was characterized using a series of techniques. It was found that the catalyst with a molar ratio of 7:3 (Fe:Sb) displayed the best NH 3 -SCR activity with 100% conversion of NO x (nitrogen oxides) over a wide temperature window and with good resistance to H 2 O + SO 2 at 250 °C. The X-ray photoelectron spectroscopy (XPS) and in situ diffused reflectance infrared Fourier transform spectroscopy ( in situ DRIFTS) of NO x adsorption results suggested that strong electron interactions between Fe and Sb in Fe-O-Sb species existed and electrons of Sb could be transferred to Fe through the 2Fe 3+ + Sb 3+ ↔ 2Fe 2+ + Sb 5+ redox cycle. The introduction of Sb significantly improved the adsorption behaviour of NO x species on the Fe 0.7 Sb 0.3 O x surface, which benefitted the adsorption/transformation of NO x , thereby facilitating the NH 3 -SCR reaction. In addition, the Fe 0.7 Sb 0.3 O x catalyst demonstrated a good tolerance of H 2 O and SO 2 , since the decomposition of NH 4 HSO 4 on the catalyst surface was promoted by the introduction of Sb.
研究领域:
催化
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环境科学
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材料科学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Ting Xiang,Xiunan Cai,Zhongqiu Luo,Xintao Zhou,Cuirong Yan,Jinying Yu,Jiayi Ge,Yueying Li
Fe-based composites exhibit favorable photo-Fenton catalytic performance for environmental remediation, but restricted by high electron hole recombination rate, low reactivity, and instability. Herein, a strategy of mechanical activation-strengthened Mn doping was innovatively proposed to construct Fe 2 O 3 porous microspheres derived from copper slag (CS) base polymers (MA-Mn/CS-Fe 2 O 3 ), and used for highly efficient photo-Fenton degradation of chloromycin hydrochloride (CTC). Benefiting from the collision and shearing of mechanical forces, improved mechanical strength and defect-rich structure were realized in the porous microspheres. Experiments and DFT calculation results reveal that mechanical activation (MA) strengthened Mn to replace the cation vacancy sites and iron ion sites in the octahedron of Fe 2 O 3 , resulting in the formation of rich oxygen vacancies (O V ) and new electronic transmission channels of O V Fe Mn, which act as trapping sites to enhance carrier separation, accelerate the Fe 3 + /Fe 2+ redox cycle, and boost the generation and transformation of reactive oxygen species (ROS). The O V Fe Mn facilitates H 2 O 2 adsorption for its barrierless dissociation into •OH by forming a bridging Mn Fe O O Fe Mn bond. Moreover, the hollow porous structure provides confined space for organic degradation, reduces ROS migration distance, and improves light utilization. These specialties contribute to the superior performance of the MA-Mn/CS-Fe 2 O 3 /Vis/Fenton system for CTC removal (97.3 % within 45 min) in a wide pH range (3 −11), remaining above 93.1 % efficiency after five consecutive cycles. This environmentally-friendly method offers new insights into the harmless treatment and valorization of CS and large-scale production of catalyst.
研究领域:
环境科学
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材料科学
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催化化学
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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2024
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IF 20.2
Beizhao Chen,Meng Zhang,Li Wang,Li Li,Qi Han,Xun Liu,Mengxia Wang,Bei Liu,Yi Jiang,Zhongying Wang
The singlet oxygen ( 1 O 2 )-based nonradical AOP process, realized in carbon materials after nitrogen and metal doping, has drawn much attention in recent years. However, the exclusive generation of 1 O 2 in the specialized two-dimensional (2D) catalytic membranes and the associated contaminant degradation mechanisms remain unclear. Herein, a Fe-doped crystalline carbon nitride (Fe-CCN) material without additional nitrogen doping was developed to preferentially initiate 1 O 2 -based nanoconfined oxidation of organic pollutants in the 2D Fe-CCN membrane/PMS system. Density functional theory calculation revealed that the Fe-O-N configuration formed after Fe doping altered the electronic structure of Fe centers, enhancing PMS adsorption and promoting the thermodynamically favorable generation of the –O* intermediate, leading to fast and highly selective 1 O 2 generation. EPR characterization and ROS quenching experiment also confirmed that the Fe-CCN activated PMS, generating nearly 100 % 1 O 2 . The Fe-CCN membrane/PMS system exhibited excellent resistance to natural organic matter (NOM) interference and dramatically increased Bisphenol A (BPA) degradation kinetics, approximately 590 times faster than in conventional batch systems. Enhanced 1 O 2 exposure concentration within the Fe-CCN membrane nanochannels was supported by EPR data and 1 O 2 exposure simulations. Furthermore, The Fe-CCN membrane/PMS system showed wide pH tolerance, excellent pollutant degradation performance, and high stability. This work underscores the practical significance of 1 O 2 -based oxidation reactions in membrane-confined AOPs for the rapid and efficient removal of organic contaminants from water.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2025
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IF 6.2
Tingjie Chen,Yuhan Tang,Gang Zhao,Zhaoxing Lin,Lihong Xu,Zhenzeng Wu,Xiangfang Peng
As environmental pollution intensifies, particularly due to the severe ecological threats posed by crude oil spills, there is an urgent need to develop hydrophobic/oleophilic porous absorbents with self-heating capabilities. These absorbents can reduce crude oil viscosity through in-situ heat transfer, thereby accelerating the remediation process. Herein, A novel multifunctional and compressible sponge (m-PFS@PPy@Fe₃O₄) is developed by self-assembling PPy, Fe₃O₄ nanoparticles, and polydimethylsiloxane onto the plant fiber sponge. The m-PFS@PPy@Fe₃O₄ exhibits high hydrophobicity and excellent compressibility, making it highly effective in separating oil-water mixtures with a high oil absorption capacity (24.7 ∼ 53.5 g/g). Due to the synergistic effect of photothermal and magnetic-thermal properties, the surface temperature can rapidly rise from 28.0°C to 96.9°C under 1 sun irradiation and 54.2°C under a specific magnetic field. This heat generation, effective in all weather conditions, overcomes limitations related to both weather and energy. The generated heat is transferred to the oil, significantly reducing its viscosity and speeding up the oil absorption process. More importantly, the sponge can be connected to a vacuum pump-assisted absorption device, enabling continuous recovery of crude oil from the water surface under sun irradiation or magnetic field, demonstrating great potential for highly efficient remediation of viscous oil spills.
研究领域:
环境科学
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材料科学
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纳米技术
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能源与可持续发展
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化学工程
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DOI
高影响因子
FOOD CHEMISTRY
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2025
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IF 9.8
Xunzhi Deng,Qinyao Li,Jing Lu,Yilin Liu,Haiou Li,Ze Liao,Gang Huang,Langtao Xiao,Zhoufei Luo
Strigolactones (SLs) are novel plant hormones that play crucial roles in regulating plant growth and development. The stereoisomers of SLs often exhibit distinct biological activities, making their chiral separation and analysis essential for understanding their regulatory roles in plant branching. This study focused on the chiral separation and characterization of SL stereoisomers, including GR24 (synthetic) and strigol (natural). A magnetic nanocomposite (Ni₃(HITP)₂@Fe₃O₄@rGO) was synthesized for SL extraction, combined with SFC-MS/MS for precise separation and quantification. The method exhibited excellent linearity (0.2–50 ng/mL), minimal matrix effects (1.64–2.17 %), and low detection limits (1.93–3.76 pg/mL). Recoveries ranged from 86.90 % to 106.37 % with RSDs of 2.56 %–13.54 %. Under nitrogen and phosphorus stress, only (+)-strigol was detected in the roots of Oryza sativa L., suggesting its regulatory role under stress conditions. This reliable method provides robust support for exploring the physiological roles of SL stereoisomers in plants, shedding light on their functions in stress response and development.
研究领域:
植物学
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分析化学
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DOI
PubMed
高影响因子
Acta Biomaterialia
·
2025
·
IF 9.6
Chunxia Liu,Mengjing Lin,Jing Dai,Binglin Chen,Jiali Wang,Jingyi Li,Xiaoyun Li,Ziyun Jiang,Miao Xiao,Mingliang Tang
Vascular calcification (VC) is a critical pathological hallmark of cardiovascular diseases but current therapeutic options remain inadequate. Nitric oxide (NO) homeostasis plays a vital role in endothelial function and phenotypic transformation of vascular smooth muscle cells (VSMCs), two key pathological processes in VC. In this study, Fe₃O₄@PDA@BNN6 (FPB) nanoparticles were prepared for directional and controllable NO therapy. Magnetic field enriched the nanoparticles to the site of VC and ultrasound triggered the controllable release of NO to regulate the homeostasis of endothelial nitric oxide synthase (eNOS) and inducible nitric oxide synthase (iNOS), further activated sGC-cGMP-PKG signaling pathway. Both in the rat and in vitro VC models, the innovative therapy inhibited osteogenic like transformation of VSMCs, alleviated endothelial inflammatory response, regulated eNOS/iNOS homeostasis, and effectively improved VC. By ensuring optimal NO bioavailability for vascular homeostasis, this magneto-ultrasonically controlled strategy overcomes limitations of conventional NO-based therapies and paves the way for precision NO-mediated interventions in cardiovascular diseases. Statement of Significance Engineering innovation: Dual-modality nanoparticle system for precision NO delivery: Magnetic guidance directs the FPB to calcified lesions, reducing systemic off-target effects. Ultrasound-triggered release of NO to ensure on-demand delivery at VC sites. Mechanistic innovation: Restoring eNOS/iNOS homeostasis as a therapeutic axis: Directional and controllable NO therapy uniquely modulates eNOS/iNOS homeostasis, further activating the sGC-cGMP-PKG signaling pathway.
研究领域:
心血管医学
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纳米医学
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分子治疗
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生物医学工程
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氧化还原生物学
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）