Biomass Conversion and Biorefinery
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2026
·Vol. 16
·期 1
·13
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IF 4.1
Chen Yunyi,Li Yingchao,Jiang Guiping,Liu Hanqi,Yin Xiaofei,Lu Zhaoxia,Ju Peng
To address the ecological problem caused by the accumulation of green tide Enteromorpha prolifera and the challenge of remediating organic pollutants in water bodies, this study utilized Enteromorpha prolifera as raw materials to synthesize a novel nitrogen-doped biochar (NBPBC) catalyst through ball-milling and pyrolysis. The resulting catalyst was applied to activate peroxymonosulfate (PMS) for antibiotic tetracycline (TC) degradation. The optimized NBPBC exhibited a large specific surface area (62.0022 m 2 /g) and a high content of graphitic nitrogen. Experimental results showed that the NBPBC/PMS system achieved 100% removal efficiency towards TC within 60 min with a rate constant k = 0.06629 min − 1 , significantly outperforming systems without ball-milling or nitrogen doping. Additionally, NBPBC maintained good a catalytic activity and stability after six cycles, with the TC degradation efficiency remaining above 80%. Mechanistic studies revealed that the catalytic mechanism was dominated by ∙O 2 − , with synergistic contributions from ∙OH, 1 O 2 and SO 4 ∙ − . This work achieves the high-value utilization of Enteromorpha prolifera waste and provides an efficient strategy for aquatic organic pollutant remediation, offering a dual-win solution to ecological and environmental challenges. Graphical abstract A novel N-doped biochar catalyst based on Enteromorpha prolifera was synthesized through a ball-milling and single-step pyrolysis method, which can effectively activate PMS to realize the rapid degradation of organic pollutants and the high-value utilization of Enteromorpha prolifera .
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Nano-Micro Letters
·
2026
·Vol. 18
·期 1
·93
·
IF 36.3
Ma Jiaxin,Shao Cong,Wang Yirong,Niu Guosheng,Yang Kaiyi,Zhao Yao,Wang Fuyi,Nie Zongxiu,Wang Jizheng
An all-in-one modification strategy was developed by introducing a multifunctional complex ammonia borane (BNH 6 ) into the buried and upper interfaces simultaneously.
BNH 6 uniquely realizes dual-interfacial defect passivation and iodide oxidation suppression by interacting with SnO 2 through hydrolysis, coordinating with Pb 2+ and inhibiting the oxidation of I − .
The optimized perovskite solar cells achieve a champion efficiency of 26.43% (certified, 25.98%) with negligible current density–voltage hysteresis and significantly improved thermal and light stability.
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PubMed
高影响因子
WATER AIR AND SOIL POLLUTION
·
2026
·Vol. 237
·期 12
·684
·
IF 3.5
Jing Xiaochun,Zhao Wei,Bei Pengzhi,Liu Hongjing,Dai Yan,Zhao Xu,Zhang Chengpeng,Shi Meiling,Zhang Ying
To advance CO 2 separation technologies, lysine-decorated UiO-66-NH 2 (LYS-UiO-66-NH 2 ) fillers were synthesized via a lysine modification and integrated into a Pebax-1657 matrix, yielding high-performance mixed matrix membranes. The carboxyl groups of the amino acids provide nucleophilic sites, promoting stronger interactions between LYS-UiO-66-NH 2 and CO 2 molecules. Moreover, the N–H and C = O bonds present in LYS-UiO-66-NH 2 facilitate hydrogen bonding with complementary C = O and N–H functional groups in the Pebax polymer backbone. These interactions significantly improve filler–polymer compatibility, enhancing interfacial adhesion and achieving uniform filler dispersion within the membrane matrix. Characterizations conducted via Fourier transform infrared spectroscopy, X-ray diffraction, differential scanning calorimetry, scanning electron microscopy, and thermogravimetric analysis confirmed successful synthesis of the LYS-UiO-66-NH 2 filler particles, exhibiting high crystallinity, uniform distribution within the polymer matrix, superior thermal stability, and absence of discernible interfacial defects. Compared to pristine Pebax membranes, the LYS-UiO-66-NH 2 /Pebax MMM containing 3 wt% filler exhibited a CO 2 permeability of 104.62 Barrer and a CO 2 /N 2 selectivity of 85.75 at 30℃ and 0.1 MPa, corresponding to increases of 74.16% and 75.61%, respectively, thereby surpassing the 2008 Robeson upper bound. This work demonstrates the considerable potential of the designed MMMs for highly efficient CO 2 separation.
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Immunity & Ageing
·
2025
·
IF 5.6
Liu Xiaofeng,Zhou Jipeng,Hou Qian,Zhou Zejun,Bai Yongping
Background Aging is characterized by progressive immunosenescence and inflammaging, in which impaired gut barrier and dysregulated mucosal immunity exacerbate systemic senescence. While probiotics modulate gut health, their role in mitigating age-related immune dysfunction via specific microbial metabolites remains unclear. This study aims to investigate the effects of Bacillus velezensis DS2, a novel probiotic, in alleviating inflammaging, with a focus on tryptophan-metabolic signaling and immune regulation. Results In senescent endothelial cells, DS2-sourced indole-3-lactic acid (ILA) activated aryl hydrocarbon receptor (AhR) signaling. This activation reduced the expression of senescence markers (p16, γ-H2A.X) and decreased the levels of pro-inflammatory molecules (ICAM-1, VCAM-1). In aged mice, DS2 supplementation increased the abundance of beneficial bacteria, including Lactobacillus and Ligilactobacillus . DS2 administration also elevated plasma ILA and IL-22 levels, and reduced intestinal permeability. This was evidenced by the expansion of IL-22-producing type 3 innate lymphoid cells (ILC3s) and activation of the AhR-IL-22 axis. Consequently, DS2 enhanced intestinal barrier integrity and mitigated systemic inflammation (TNF-α, IL-6). Exogenous ILA was sufficient to recapitulate these benefits by potentiating gut mucosal immunity and attenuating inflammaging, as all these effects were abolished by the AhR antagonist CH223191. Conclusions We demonstrate that DS2 mitigates inflammaging by producing ILA, which acts as a key metabolite to activate the AhR-IL-22-ILC3 axis. Our findings highlight the potential of targeting the gut-immune axis with specific probiotics as a novel strategy against age-related immune decline.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
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2026
·Vol. 61
·期 14
·9219-9229
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IF 4.4
Zhao Mo,Wu Wei,Chen Wei,Dong Yayun,Yang Jing,Shi Yuewu,Li Jinxi,Wang Wenbing,Zhou Yifu,Wang Xutong
The magnetostriction effect of ferrite materials will adversely affect their application in high-precision electrical measurement scenarios. In this study, vanadium pentoxide (V 2 O 5 ) was introduced as both a sintering aid and a dopant in the solid-state sintering process of iron-deficient NiCuZn ferrites with the composition (Ni₀.₂Cu₀.₂Zn₀.₆O)₁.₀₃(Fe₂O₃)₀.₉₇. The results show that the addition of V₂O₅ effectively promots grain growth, increasing the average grain size from approximately 1 μm to 6 μm, and enhances the compactness of the material, which would compensate the magnetization reduction due to the replacement of Fe 3+ by V 5+ . When the doping concentration of V 5+ is controlled below 3 at%, the magnetostriction strain of the ferrite can by minimized to approximately 8 ppm without significant loss of key magnetic properties such as permeability and saturation magnetization. In addition, vanadium doping also improved electrical resistivity of NiCuZn ferrite, thereby reducing eddy current losses and power loss of material under high-frequency (50 kHz and 100 kHz) electromagnetic fields, which make the V 5 ⁺ doped NiCuZn ferrites possibly be used in the high-precision and high frequency measurement.
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高影响因子
INTERNATIONAL JOURNAL OF THERMOPHYSICS
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2026
·Vol. 47
·期 4
·60
·
IF 3.6
Aljasmi Abdullah,Mohammad Abubaker A.,AlJimaz Adel S.,AlKhaldi Khaled H. A. E.,AlTuwaim Mohammad S.
Density, refractive index, viscosity, surface tension, and speed of sound were experimentally determined and analyzed for [C 2 mim][MeSO 4 ], [C 2 mim][EtSO 4 ], [C 2 eim][EtSO 4 ], [C 4 mpy][BF 4 ] and [C n py][BF 4 ] ( n = 3, 4, 6) at atmospheric pressure and temperatures ranging from 293.15 K to 343.15 K. Expectedly, temperature exhibited the greatest impact on viscosity, as all properties decrease as temperatures increase. Linear temperature-dependent correlations were utilized for density, surface tension, refractive index, and speed of sound, while the Vogel–Fulcher–Tammann (VFT) model was applied to describe the temperature dependence of viscosity. The Laplace-Newton equation was used to calculate isentropic compressibility, and thermal expansion was calculated using the experimental density data. Furthermore, the study examined the impact of anion type and alkyl chain length on the thermophysical properties of the ionic liquids. The results reveal that the physical properties of the ionic liquids are significantly influenced by the anion type, whereas the alkyl chain length has a less significant impact. Density, speed of sound, and surface tension decrease as the length of the alkyl chain increases, while viscosity and refractive index exhibit opposing trends. Additionally, the experimental data obtained in this study is compared to theoretical models for density, surface tension, and speed of sound.
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WATER AIR AND SOIL POLLUTION
·
2026
·Vol. 237
·期 10
·604
·
IF 3.5
Wang Bo,Sun Yang,Jiang Lina,Zhou Peng,Guo Ping,Wang Xu
The widespread use of tetracycline (TC) has led to its accumulation in aquatic environments, posing risks of antibiotic resistance and ecological toxicity, necessitating efficient wastewater treatment solutions. While photocatalysis, particularly using TiO₂, has shown promise, its practical application is limited by low efficiency and rapid charge recombination. To overcome these challenges, this work developed a novel ternary TiO 2 @Ti 3 C 2 /ZIF-67 (T@M/Z) heterojunction photocatalyst through a facile hydrothermal process. T@M/Z-18 composite demonstrated exceptional photocatalytic performance, achieving 92.52% of TC removal and 77.05% of total organic carbon (TOC) mineralization under visible light after 90 min. Systematic studies optimized key operational parameters, revealing that a catalyst dosage of 0.5 g/L and an initial TC concentration of 15 mg/L yielded the highest degradation efficiency. The presence of anions (e.g., Cl − and SO 4 2 ⁻) enhanced TC removal, while humic acid (HA) exhibited a dual role, acting as a photosensitizer at low concentrations but inhibiting degradation at higher levels. The catalyst maintained excellent stability and reusability, with only a slight decline in performance after five cycles. Degradation pathways, identified through high-performance liquid chromatography-mass spectrometry (HPLC–MS) analysis, involved hydroxylation and N-demethylation, leading to reduced acute toxicity. These results highlight the potential of T@M/Z as a sustainable and efficient solution for antibiotic-contaminated wastewater treatment.
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高影响因子
Journal of Coatings Technology and Research
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2026
·
IF 3.4
Li Wenbo,Hou Yanru,Ding Xin,Cao Chunlei,Ma Jianying
Based on Newman's “Six Rules,” neopentyl glycol (NPG) was selected as alcohol component and trimellitic anhydride (TMA) as hydrophilic monomer to synthesize waterborne polyester resin (WPE) with good storage stability. Chemical structure and properties of WPE were characterized by fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), and thermogravimetry (TG). The influence of the type and content of reactant on the properties of WPE were investigated. In addition, the performance of coating films were also studied. Experimental results showed that both acid value and molecular weights of WPE increased with increasing content of TMA, and the molecular weights distribution broadened slightly. The temperature of the maximum weight loss rate and glass transition temperature ( Tg ) increased. However, the storage stability decreased. Upon crosslinking, coating films derived from WPE with increasing content of trimethylolpropane (TMP) exhibited better water resistance, higher gloss, and greater hardness. Good optimal performance was achieved when the content of TMA and TMP was 8% and 12%, respectively. WPE with suitable acid value, controlled molecular weights, good storage stability, and desirable coating film properties were sucessfully prepared.
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高影响因子
JOURNAL OF POLYMER RESEARCH
·
2026
·Vol. 33
·期 3
·76
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IF 3.5
Song Xiaobo,Liu Xinyi,Mu Zongjing,Xu Zhongbin,Zhang Cailiang
The growing demand for advanced medical catheters in minimally invasive surgery underscores the importance of optimizing catheter mechanical properties. Although existing studies have explored various multilayer catheters made from different materials and composite designs, research on poly ether ether ketone (PEEK)-based double-layer catheters remains limited. This work developed a PAKD/PEBA double-layer medical catheter utilizing a combination of plasma surface modification and multi-step grafting. The approach enhanced the interlayer peel strength from 0 N to 6.78 N, meeting the bonding requirements for medical catheters. Moreover, compared to a single-layer PEEK catheter with the same dimensions, the bending stiffness of the PAKD/PEBA double-layer catheter was reduced by 39.65% and the torsional stiffness by 34.14%, resulting in improved flexibility and torsional resistance.
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高影响因子
Journal of Sustainable Metallurgy
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2026
·
IF 3.5
Zhu Shan,Hu Jiugang
Clay-type lithium ore is an important natural lithium resource characterized by its wide distribution and large reserves. Owing to its complex composition, low-grade clay-type lithium ore contains high levels of impurities and exhibits low lithium concentrations in its leachate, necessitating the selective separation and enrichment of lithium from impurities. In this study, a synergistic solvent extraction system with Mextral®3939H and DIBK was applied for the selective extraction and separation of lithium from the leachate of low-grade clay-type lithium ore, with the objective of mitigating the imbalance between lithium supply and demand. The effects of Mextral®3939H molar fraction, equilibrium time, extraction temperature, organic-to-aqueous phase ratio (O/A), and initial aqueous pH on extraction and separation performance were systematically investigated. The optimized extraction conditions were identified as a Mextral®3939H molar fraction of 0.6, equilibrium time of 20 min, extraction temperature of 45 °C, O/A of 2:1, and initial aqueous pH of 7. Under these optimal conditions, the extraction efficiency of lithium reached 93.76%, while the separation coefficients between lithium and aluminum, calcium, iron, potassium, and sodium were 18.96, 797.64, 394.55, 68.38, and 313.19, respectively. The extraction equilibrium isotherm of lithium revealed that three counter-current extraction stages were required at O/A = 2:1 to reduce the lithium concentration in the raffinate to below 0.042 mg/L, achieving an overall extraction efficiency of more than 99%. Furthermore, slope analysis suggested that the extracted lithium complex may be {Li 2 ⋅[A] (o) ⋅[Cl − ] [B] (o) ⋅[HA]}. This work will provide a theoretical basis for the potential application of industrial lithium recovery from clay-type ores. Graphical
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RESEARCH ON CHEMICAL INTERMEDIATES
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2026
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IF 3.3
Qie Junmao,Cao Mengfei,Zong Jiaqi,Chang Jian,Zhang Shuqi,Xu Tong
Selective catalytic reduction (SCR) is presently the predominant technology for controlling nitrogen oxides (NO x ) emissions from industrial flue gas in China. Central to its operation is the denitration catalyst; however, the conventional systems face constraints such as a limited active temperature range, potential toxicity of certain active components, and high production costs. Bayan Obo rare earth tailings, enriched in catalytically active elements including Fe, Ce, and Nb, present a promising alternative raw material for denitration catalyst development. Currently, catalyst modification to improve denitration performance is a key research focus. In this study, Fe-rich magnetic separation rare earth tailings were obtained via magnetic separation processing of Bayan Obo tailings. We systematically evaluated the denitration performance and mechanism of catalysts prepared from these magnetic separation rare earth tailings through Mn modification in combination with NaOH alkaline fusion activation. Results indicate that when the catalyst is produced under conditions of 3 wt.% Mn loading and an ore-to-alkali ratio of 1:1.5, activated at 200 °C, the denitration efficiency reaches 89.6%. Furthermore, as the reaction temperature increases, the catalyst consistently exhibits high N 2 selectivity, maintaining values above 90% within the 100–300 °C range. The Mn-modified, NaOH alkaline fusion-activated catalyst shows enhanced stable adsorption of ammonia species, suppression of intermediate conversion to N 2 O, and improved N 2 selectivity. This work offers a viable approach for the high-value, sustainable utilization of rare earth tailings in environmentally friendly denitration technologies.
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高影响因子
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
·
2026
·
IF 1.7
Wei Ran,Liu Shanjun,Sun Shan,Sun Jiaxu,Zhang Jianlin
Persulfate activation for the degradation of organic pollutants has been extensively studied. However, most studies focus narrowly on the performance of activators, with limited investigation of continuous-flow systems. Further experimental validation in such configurations is essential to promote practical applications. A continuous flow experiment for the degradation of atrazine was carried out by persulfate activation using municipal sludge as catalyst. The effects of key operating parameters such as the concentration of activator, hydraulic retention time, mixing intensity and the dosage of persulfate on degradation efficacy were systematically evaluated. Under optimized conditions of 300 mg L⁻¹ sludge biochar, 8 h hydraulic retention time, 300 rpm mixing intensity, and 168:1 persulfate/atrazine molar ratio, the continuous-flow system achieved stable atrazine degradation (> 80%) for 30 days. This study would provide crucial technical validation to advance practical implementation of persulfate-based advanced oxidation processes.
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