Journal of Environmental Sciences
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2026
·
IF 6.5
Benfu Lai,Junmin Deng,Long Li,Haoxuan Zhang,Ziqi Dong,Shuangjie Xiao,Haoran Dong
A coupled system integrating M. barkeri with S-NZVI was developed for p-CP removal. • Microbially mediated iron cycling is the core mechanism of the synergistic system. • M. barkeri regenerates reactive Fe²⁺ sites by reducing the Fe(III) passivation layer. • Microbial activity effectively promotes electron transfer processes. • This work provides a bio-enhanced strategy to maintain long-term reactivity of S-NZVI. Chlorophenols are persistent and toxic pollutants frequently detected in contaminated groundwater. Sulfidated nanoscale zero-valent iron (S-NZVI) has been widely applied for chlorophenol remediation; however, its performance is limited by rapid surface passivation and a short service life. In this study, a coupled system integrating the methanogenic archaeon Methanosarcina barkeri with S-NZVI was developed to enhance both the degradation efficiency and long-term reactivity toward p-chlorophenol (p-CP). The coupled system achieved a removal efficiency of 85.5 % within 15 days, significantly outperforming the single S-NZVI system (44.2 %) and the single M. barkeri system (34.5 %). The interfacial electron transfer, material transformation, and microbial responses were systematically investigated through electrochemical analysis, multiple characterization techniques, and transcriptomic profiling. Mechanistic analysis reveals that M. barkeri plays a dual role: (1) reducing the Fe(III) passivation layer on S-NZVI, thereby regenerating reactive Fe⁰/Fe²⁺ sites; (2) facilitating electron transfer between the microorganism and the material, thereby promoting the efficient reductive dechlorination of p-CP. Transcriptomic results further show the upregulation of genes associated with electron transport and methanogenesis, indicating metabolic adaptation to the coupled system. For the first time, this study proves that methanogenic archaea can reactivate passivated S-NZVI biologically and preserve its long-term reductive dechlorination capacity. This work puts forward a bioaugmentation strategy against S-NZVI passivation, reveals new mechanisms of microbe-material interactions, and presents a feasible method for in situ remediation of groundwater contaminated with chlorophenols. Download: Download high-res image (211KB) Download: Download full-size image
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高影响因子
Journal of Inorganic and Organometallic Polymers and Materials
·
2026
·
IF 6
Wang Pengjie,Xu Hang,Liao Hean,Zhu Kefei,Zhang Xiaorui,Dai Qiran,Li Chenhao,Weng Ling,Feng Yu,Yue Dong,Liu Jialin
In this work, network regulation and reactive flame-retardant reinforcement were integrated by introducing BBA (2,2’-diallyl bisphenol A) and TAIC (triallyl isocyanurate) to tailor the ene/Diels-Alder, together with HECP (hexakis(4-allyl-2-methoxyphenoxy)cyclotriphosphazene) to build a copolymerized P-N cyclomatrix network via melt blending and staged curing. The flame-retardant action is mainly attributed to the synergism of phosphorus-promoted condensed-phase charring/barrier formation and nitrogen-assisted release of inert volatiles that dilute combustible pyrolysis species, thereby suppressing heat and mass transfer. At 3–4 wt% HECP, the resin achieved a flexural strength of 140 MPa and a T g of 179.4 °C, while the dielectric constant/loss decreased to 2.60/0.007 and the characteristic breakdown strength increased to 29.70 kV/mm. The flame-retardant performance was simultaneously improved, with LOI rising to 36.8%, UL-94 reaching V-0, and THR (Total Heat Release) decreased by 44.1% at 5 wt% HECP. Excessive HECP induced network heterogeneity due to self-ring-opening polymerization, leading to partial property regression. These results demonstrate a scalable route to multifunctional BMI insulating matrices for high-reliability electronic packaging.
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高影响因子
MOLECULES
·
2026
·Vol. 31
·期 16
·2755
·
IF 5.1
Hongqiang Yuan,Zheyuan Zhan,Ying Zhang,Yue Ran,Chaofan Tan,Jialian Xie
In this study, oil sludge was utilized as a carbon source to prepare a carbon-based catalyst. By leveraging the oil sludge’s inherent iron content and subsequently introducing exogenous copper, a CuO/Fe 2 O 3 /carbon composite material (OSC-0.75Cu) was synthesized for the activation of peroxymonosulfate (PMS) to degrade p-nitrophenol. The OSC-0.75Cu/PMS system achieved a degradation efficiency of 92.19%, which was 2.91 times that of the OSC/PMS system (31.71%), and its reaction rate constant (k obs ) was 8.9 times greater. Furthermore, in simulated water matrices (containing anions and fulvic acid) and three real water matrices (rainwater, moat water, and Yangtze River water), the OSC-0.75Cu/PMS systemachieved PNP degradation efficiencies ranging from 71.63% to 76.36%. The degradation of p-nitrophenol in this system involves three primary reactive species: hydroxyl radicals (•OH), sulfate radicals (•SO 4 − ), and singlet oxygen ( 1 O 2 ), among which 1 O 2 plays the dominant role. The coexistence of Cu and Fe species may facilitate surface redox reactions during PMS activation, while defect-related oxygen sites may contribute to PMS adsorption and activation and the generation of 1 O 2 . This study provides a novel strategy that enables the resource utilization of oil sludge while simultaneously addressing environmental remediation challenges.
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PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2026
·Vol. 37
·期 20
·1565
·
IF 3.2
Yang Bowen,Zhang Siqi,Guan Mengxiang,Liu Lei,Yan Ziyu,Liang Yongri,Peng Guirong,Zhou Zhe
Owing to the outstanding ferroelectric properties, PVDF and its copolymers have emerged as the most promising piezoelectric polymer materials to date. To enhance the dielectric constant of P(VDF-HFP) while reducing its dielectric loss, BT@C@SiO 2 with a double-layer shell structure was synthesized and blended with P(VDF-HFP) to fabricate a piezoelectric film. Under mild conditions, PDA was synthesized as the precursor of the conductive carbon inner shell, which was carried out in a weakly alkaline Tris buffer system at room temperature, only involving stirring, centrifugation, water washing, and low-temperature drying, without any drastic reaction procedures. The results demonstrated that the incorporation of BT increased the dielectric constant of the film, whereas the introduction of the C layer formed micro-capacitors within the matrix, further enhancing the dielectric constant. Simultaneously, the C layer with high defect density captured freely mobile carriers in the film, thereby reducing AC conductivity and dielectric loss, which improved the energy harvesting efficiency of the piezoelectric film. The dielectric constant of the BT@C@SiO 2 /P(VDF-HFP) film could reach up to 15.8 (100 Hz), while the dielectric loss and conductivity were as low as 0.042 and 3.77 × 10 –9 S/m (100 Hz), respectively. The BT@C@SiO 2 acted as a nucleating agent in the P(VDF-HFP) matrix, and consequently induced the increase of the crystallization temperature and the formation of β phase in P(VDF-HFP). When the BT@C@SiO 2 content reached 5%, under a pressure of 40 N and a loaded resistance of 10 6 Ω, the composite film achieved its highest piezoelectric output with the output voltage of 1.1 V. Under a pressure of 40 N and a loaded resistance of 10 11 Ω, the piezoelectric output power reached its maximum value of 8.76 μW. A 5% BT@C@SiO 2 /P(VDF-HFP) film was fabricated into a piezoelectric sensor for practical applications. The output voltages of the film during finger bending, finger tapping and foot stepping were 0.40 V, 0.75 V, and 2.65 V, respectively. These results indicated that BT@C@SiO 2 /P(VDF-HFP) piezoelectric film exhibited potential application in motion monitoring.
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高影响因子
MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Qiuyu Wang,Maoyuan Hu,Wanke Zhou,Junchun Guo,Sheng Li,Xiaoli Xiong,Jinglin Li
ZIF-derived N,P,S-HCNFs provide a porous electroactive interface for TBHQ sensing. • Single- and dual-doped controls with DFT support cooperative heteroatom regulation. • Two linear ranges of 0.9–12 and 12–127 μM were achieved with a 0.075 μM LOD. • Reliable TBHQ quantification was demonstrated in spiked edible-oil samples. • Extra Trees enables validated auxiliary calibration in complex oil matrices. Tert-butylhydroquinone (TBHQ) is a widely used synthetic phenolic antioxidant, and its excessive use in edible oils raises food-safety concerns. Herein, N, P, and S tri-doped hollow carbon nanofibers (N,P,S-HCNF) with interconnected porous channels were fabricated via an electrospinning–pyrolysis strategy. The hollow architecture and heteroatom-induced defects provide abundant electroactive sites and facilitate electron/mass transfer, enabling sensitive electrochemical oxidation of TBHQ. The N,P,S-HCNF/CP sensor exhibited two linear response ranges of 0.9–12 μM and 12–127 μM, with a detection limit of 0.075 μM. Acceptable selectivity, reproducibility, and storage stability were obtained. Single- and dual-doped controls combined with DFT calculations provided mechanistic insight into the enhanced TBHQ adsorption and interfacial electron transfer of N,P,S-HCNF, including preferential interactions involving the phenolic hydroxyl groups. An externally validated Extra Trees calibration model was further employed as an auxiliary strategy to reduce matrix-related prediction bias, integrating hollow carbon nanofiber engineering, multielement heteroatom regulation, mechanistic analysis, and data-driven quantification for TBHQ electrochemical determination in edible oils. A defect-rich N,P,S-doped hollow carbon nanofiber interface enabled sensitive electrochemical oxidation of TBHQ, while DFT supported favorable adsorption and interfacial charge redistribution and machine learning provided auxiliary calibration for improved quantification in edible-oil matrices. Download: Download high-res image (128KB) Download: Download full-size image
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高影响因子
CARBON
·
2026
·
IF 12.7
Xiaoyan Liu,Wei Ding,Guoxu Wang,Jizheng Zhu,Suzhen Yin,Chengbiao Wei
Lithium-sulfur (Li-S) batteries are promising next-generation energy-storage systems because of their high theoretical energy density. However, their practical application is severely hindered by sluggish sulfur redox kinetics and the shuttle effect of soluble lithium polysulfides (LiPSs). Herein, a MoS 2 @NPCNFs interlayer is designed to immobilize LiPSs and accelerate bidirectional sulfur conversion. The porous and conductive carbon nanofiber framework provides rapid electron/ion transport pathways and facilitates electrolyte penetration, while the MoS 2 component offers abundant catalytic sites for polysulfide adsorption and conversion. As revealed by density functional theory (DFT) calculations, the nitrogen-regulated electronic environment modulates the Δd-p value associated with MoS 2 . This optimized d-p orbital interaction strengthens the coupling between MoS 2 and lithium polysulfides, thereby promoting their chemical adsorption and catalytic conversion. X-ray photoelectron spectroscopy shows obvious binding-energy shifts after Li 2 S 6 adsorption, indicating strong interfacial electronic interactions. Density functional theory calculations further demonstrate that this electronic-structure regulation enhances the LiPSs chemisorption, optimizes the Gibbs free-energy evolution of sulfur redox reactions, and lowers the energy barriers for Li 2 S decomposition and Li + diffusion. Consequently, the MoS 2 @NPCNFs interlayer enables efficient bidirectional catalysis of polysulfide reduction, effectively suppressing the shuttle effect and improving reaction kinetics. The assembled Li-S battery delivers high initial discharge capacities of 1262.9 mAh·g −1 at 0.2C and 916.0 mAh·g −1 at 1C, and maintains excellent cycling stability over 1000 cycles at 1C with a low capacity decay rate of 0.043% per cycle. This work provides an electronic-structure-regulation strategy for designing advanced interlayers toward high-performance Li-S batteries. Download: Download high-res image (276KB) Download: Download full-size image
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Shuhuan Yun,Xianzhe Sheng,Weiran Tang,Handong Luo,Zhonglei Ma,Guangcheng Zhang
Lightweight, high-temperature resistant copolymerized polyimide foams (CPIFs) were fabricated via a “stepwise heating-holding” thermal foaming process using 3,3′,4,4′-biphenyltetracarboxylic dianhydride (s-BPDA) and 2,3,3′,4′-biphenyltetracarboxylic dianhydride (α-BPDA) as codianhydrides and p-phenylenediamine (PDA) as the diamine. Asymmetric α-BPDA rigidifies molecular chains to endow superior thermal resistance. The CPIFs possess a three-dimensional open-cell structure (open-cell content >99%), ultralow densities (<10 kg·m–3), excellent heat resistance (Tg ranging from 373.8 to 405.6 °C), and high thermal stability (T5% > 588 °C), substantially outperforming previously reported counterparts. Benefiting from the unique cellular architecture, the CPIFs exhibit thermal conductivities below 0.06 W·m–1·K–1 at room temperature and approximately 0.08 W·m–1·K–1 at 200 °C, and excellent sound absorption (NRC ≥ 0.4), along with outstanding flame retardancy (LOI > 44%, UL-94 V-0 rating). Moreover, the CPIFs remain flexible and thermal insulating even in liquid nitrogen. This work provides a robust strategy for high-performance polyimide foams integrating heat resistance, flexibility, thermal insulation, and acoustic absorption, promising for aerospace and extreme-environment applications.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·
IF 3.1
Yidi Liu,Qiunan Xie,Ming Huang,Xin Qu,Jingcheng Liu,Xiaojie Li,Wei Wei
Although epoxy resins (EP) have been widely used in many fields, performing halogen-free flame-retardant modification on them while improving their mechanical properties still holds significant research value. Herein, a halogen-free P/N/B-containing modifier (DVB) was synthesized via mild nucleophilic substitution, esterification, and Schiff base reactions using diphenylphosphinyl chloride, vanilline, phenylboronic acid, and 3-amino-1,2-propanediol as precursors. Its efficacy on bisphenol A epoxy resin/4,4′-diaminodiphenylmethane thermosets was systematically evaluated, with comparisons to a phosphorus-only intermediate (DV). At 3 wt% DVB loading (0.18 wt% P content), the modified EP exhibited a limiting oxygen index of 28.5% and achieved UL-94 V-0 classification. Relative to pristine EP, EP/5% DVB demonstrated a reduction of 41.8% in peak heat release rate, 27.7% in total heat release, and 30.0% in total smoke production, outperforming EP/5% DV (17.8%, 15.8%, and 12.2% reductions, respectively). Furthermore, EP/DVB thermosets displayed maximal improvements of 37.0% in flexural strength and 59.4% in impact strength, coupled with a glass transition temperature retention rate of 98%. Collectively, DVB presents considerable application potential for synergistically enhancing the flame retardancy and mechanical performance of epoxy resins.
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高影响因子
Small
·
2025
·
IF 12.1
Xin Jin,Xuemei Jia,Haili Lin,Qianlong Wang,Xiaoxin Feng,Yujie Zhang,Haoyu Zhang,Jing Cao
Although red phosphorus (RP) is a promising photocatalyst, its performance in simultaneous benzyl alcohol (BA) oxidation and H 2 evolution is constrained by undesirable carrier recombination and sluggish surface reaction kinetics. The d–p orbital hybridization, serving as a crucial mechanism for electronic structure regulation, offers an effective strategy to address the aforementioned challenges. Hence, RP is synergistically regulated by defect-rich nickel oxide (NiO x ) and Co single atoms (Co SA ) to construct a dual d−p orbital hybridized photocatalyst (NiO x @RP@Co SA ). In the NiO x @RP@Co SA system, the Ni 3d–P 2p orbital hybridization optimizes the BA adsorption at Ni sites and reducing the C─H bond activation energy barrier. Meanwhile, the Co 3d–P 2p orbital hybridization is conducive to balancing the hydrogen reduction reaction. In situ characterization combined with density functional theory (DFT) calculations confirms that precise regulation of dual d–p orbital hybridization not only enhances charge separation efficiency but also promotes surface reaction kinetics. The 5NiO x @RP@0.2Co SA exhibited superior photocatalytic performance, which is approximately a 15.48-fold enhancements compared to RP. This work not only elucidates the mechanism of dual d−p orbital hybridization but also establishes a novel paradigm for the design of efficient and multifunctional solar-driven catalytic systems.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Jinhui Hu,Minming Zou,Jue Wang,Shuo Zou,Yue Liu,Yan Ma,Wenjing Chen,Qinling Li,Yinshui He,Xiongxin Jiang,Xiaowu Hu
Addressing the urgent demand for energy conservation, efficient thermal storage, and safety protection in the modern building sector, this study fabricates a temperature-adaptive multifunctional composite phase change material (PEG/RCP). By encapsulating polyethylene glycol (PEG) within high-porosity anisotropic P/N co-doped rGO aerogels prepared via directional freezing, the composite achieves a critical balance between high latent heat (169.6 J·g −1 ) and low thermal conductivity (0.397 W·m −1 ·K −1 ). Comprehensive molecular dynamics simulations reveal that heteroatom doping induces significant phonon spectrum mismatch at the interface. This mismatch substantially enhances interfacial thermal resistance, facilitating a synergistic “heat storage-thermal insulation” effect. The composite exhibits robust flame retardancy with a 53.3% reduction in peak heat release via gas-phase dilution, condensed-phase char formation, and phase change heat absorption. Furthermore, it achieves superior electromagnetic shielding effectiveness (greater than 75 dB) dominated by absorption loss through multiple reflections within the porous framework, interfacial/dipole polarization, and conductive loss. Outdoor building thermal management tests confirm that the PEG/RCP interlayer effectively suppresses indoor temperature fluctuations and delays heat transfer, showcasing exceptional temperature-adaptive thermal regulation performance. Consequently, this work offers a promising strategy for designing advanced materials for multifunctional thermal management in next-generation smart buildings.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·Vol. 143
·期 43
·e71460
·
IF 3.1
Haoyu Lv,Bin Li,Zhigang Hu,Mengjing Zhou,Jiawei Li,Longfei He,Yuzuo Liu,Ming Ma
In this study, a ternary deep eutectic solvent (DES) was prepared using glycerol (Gly), acrylamide (AM), and choline chloride (ChCl) as raw materials, and polyethylene glycol (PEG) with different mass fractions was introduced as a filler into the DES to fabricate PEG/P(G-AM-ChCl) composite hydrogels via photopolymerization. The composite hydrogels were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The effects of PEG content on the swelling behavior, water holding capacity, mechanical properties, and fatigue resistance of the composite hydrogels were systematically investigated. The results showed that the addition of PEG promoted the formation of a denser hydrogen bonding network within the hydrogel, effectively reducing the water loss rate, and the equilibrium swelling degree of the composite hydrogels increased to 9.61 with increasing PEG content. The composite hydrogels exhibited excellent mechanical properties and fatigue resistance, with a compressive strength reaching 0.157 MPa after PEG addition, which was 1.25 times higher than that of the PEG-free group. This study provides a simple method for preparing composite hydrogels with high water holding efficiency.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Guangrui Sun,Qingchun Wang,Ge Qi,Jinxiao Bao,Weixiang Shang,Fei Ruan,Yuwei Ma
The development of economical, efficient, and durable non-precious metal electrocatalysts for the hydrogen evolution reaction (HER) is crucial for the scalable production of green hydrogen via water electrolysis. This work reports a NiN x -derived P/S-modulated oxygen-containing reconstructed Ni-based microflower heterostructure grown in situ on nickel foam (NF), denoted as NiN x /NF-P,S. This unique three-dimensional porous microflower architecture provides a large accessible surface area and abundant catalytic interfaces, while the strong integration with the NF substrate ensures excellent structural stability during prolonged HER operation. The incorporation of P and S promotes the construction of heterogeneous interfaces and regulates the local electronic structure, while surface reconstruction under alkaline HER conditions introduces oxygen-containing Ni species, resulting in reconstructed catalytic interfaces favorable for HER. Consequently, the obtained NiN x /NF-P,S catalyst exhibits outstanding HER activity in alkaline media, requiring low overpotentials of only 17 and 70 mV to achieve current densities of 10 and 100 mA cm −2 , respectively. Furthermore, the catalyst maintains excellent long-term durability during continuous operation for 150 h. This work provides a promising strategy for constructing dynamically evolved non-precious metal heterostructured electrocatalysts. Download: Download high-res image (235KB) Download: Download full-size image
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高影响因子
危险品化学品经营许可证（带存储）