Journal of Energy Storage
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2026
·
IF 10.7
Fang Gao,Chunli Gou,Zhanxin Geng,Mingke Yang,Jing Zhang
The recycling of spent lithium-ion batteries (LIBs) is crucial for environmental protection and resource reutilization. However, traditional recycling routes normally involve complex processes and secondary pollution. In this study, we demonstrate an effective method combining hydrothermal relithiation with low-temperature thermal annealing to directly generate the spent LIBs. We create a lithium-rich environment for spent LiNi 0.5 Co 0.2 Mn 0.3 O 2 (NCM523) cathode particles using LiOH solution, followed by surface-doping Nb elements on the active particles for enhanced electrochemical performance. The upgraded NCM523 exhibits a satisfactory repaired specific capacity of 150 mAh g −1 and excellent cycling stability by retaining 75.3% of its capacity after 200 cycles, owing to the stable Nb-doped structure. Hydrothermal relithiation combined with short thermal annealing reduces the temperature and time required for direct regeneration and shows priority in techno-economic and environmental analysis, which can be extended to regenerate spent LiCoO 2 (LCO) cathode. This simple and efficient treatment expands the feasibility of direct regeneration and offers a promising strategy for regenerating spent LIBs.
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Frontiers in Microbiology
·
2026
·
IF 5.8
Ge Tian,Wanqing Zhang,Dafan Zhu,Jinhua Pan,Wei Qu,Yingwei Wang,Lina Zhou
Metschnikowia pulcherrima has been studied and applied in winemaking in recent years, but its application in icewine fermentation has rarely been reported. In this study, the tolerance and β-glucosidase activities of indigenous M. pulcherrima strain were first detected. The results show that, except for a relatively low tolerance to ethanol [limited to 4% (v/v)], the other tolerance is good to the fermentation of icewine; the cell wall-bound and extracellular β-glucosidase activities of M. pulcherrima strain were 35.93 nmol/mL (1.28 U) and 14.31 nmol/mL (0.42 U), respectively. M. pulcherrima and Saccharomyces cerevisiae (commercial and indigenous) strains were sequentially inoculated for icewine fermentations; meanwhile, pure S. cerevisiae fermentations were used as the control. The results showed that M. pulcherrima was completely replaced by S. cerevisiae in the middle and late stages of mixed culture fermentations of icewine. Compared with the icewine fermented with pure S. cerevisiae, the concentration of acetic acid and ethanol was lower, and the concentration of glycerol was higher in the mixed culture fermented icewines. After inoculation with M. pulcherrima, the levels of several important volatile compounds increased significantly, including β-damascenone, trans-rose oxide, isobutanol, isoamyl acetate, isobutyl acetate, and some ethyl esters (ethyl acetate, ethyl caprylate, ethyl caprate, ethyl nonanoate, ethyl hexanoate, and ethyl 9-decenoate). The pleasant fruity and flowery characteristics of mixed-fermentation icewine was intensified.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Yulin Jiang,Xiaoqiao Yang,Changshun Xu,Xuetong Liu,Tong Ye,Zheng Xi,Jing Gao,Haihang Ye,Tingrui Pan
The ability to monitor cholesterol in biofluids is essential for health management, including the prevention of chronic diseases. Wearable sweat biosensors offer a noninvasive and continuous means of monitoring disease biomarkers, however, the inherently low cholesterol concentration in sweat poses a significant challenge for sensitive detection. In this study, a wearable cholesterol biosensor combining cholesterol oxidase with Pd Ir nanozymes as a cascade sensing unit was developed for continuous monitoring of cholesterol in sweat. The Pd Ir nanozyme, synthesized via seed-mediated growth and selective etching, has a unique icosahedral hollow cage structure and exhibits peroxidase-mimicking activity with catalytic efficiency much higher than its core-shell and natural counterparts. A detection limit of 0.22 μM with a dynamic range of 0–15.5 μM was achieved by the developed cholesterol biosensor in artificial sweat, covering the physiological range in human sweat. Furthermore, the integrated device was validated through volunteer testing after dietary cholesterol intake and exercise, confirming its effectiveness for real-time, dynamic monitoring of sweat cholesterol during daily activities. The wearable sensing strategy based on coupling the nanozyme and enzymes holds great promise for noninvasive and sensitive lipid monitoring and personalized health management across a range of physiological and pathological conditions.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yingfei Liu,Xirui Pei,Lingxuan Ma,Zhao Geng,Yixin Ma,Di Chen,Jinchao Wei
Nonsteroidal anti-inflammatory drugs (NSAIDs) are ubiquitous pharmaceutical contaminants frequently detected in aquatic environments and medicinal products, raising increasing concerns regarding their chronic ecological toxicity and potential human health risks through long-term exposure. However, accurate exposure assessment of NSAIDs is often hindered by their trace-level occurrence and strong matrix interferences in complex samples. To address these analytical challenges, this study created a new polypyrrole-modified cotton fiber via a controlled oxidative polymerization process, leading to the construction of a fiber-supported stick microextraction (FS-SME) device. Owing to the synergistic contribution of π–π interactions, hydrogen bonding, and pseudo‑hydrogen bonding, the sorbent materials exhibited exceptional mechanical stability and a high adsorption capacity toward NSAIDs (up to 45.25 mg/g). Adsorption kinetics and isotherm analyses revealed that the enrichment process was dominated by rapid monolayer chemisorption, ensuring efficient and reproducible extraction. Under optimized conditions, the FS-SME-HPLC method provided satisfactory recoveries (62.6%–75.4%), low detection limits (0.2–2.5 ng/mL), and excellent linearity (R 2 ≥ 0.992) within a 5 mL sample system, while also exhibiting good reusability and batch-to-batch consistency. Overall, this work introduced a new cotton fiber functional material and delivered a reliable device for risk-informed environmental monitoring of NSAIDs in complex matrices, thereby supporting risk management and regulatory decision-making for pharmaceutical contaminants.
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MOLECULES
·
2026
·Vol. 31
·期 4
·705
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IF 5.1
Yue Gao,Xuan Qi,Junfeng Zhang
A novel polycationic membrane (PCM) was synthesized by the cyclization of polyacrylonitrile (PAN) with m-ethylene diamine, converting the nitrile groups into pyridine units, followed by quaternization with 1-bromobutane. The resulting PCM was further functionalized by loading the photocatalyst, phosphomolybdic acid (PMo), via anion exchange, forming a new type of photocatalytic material, PM-PCM. Under visible light irradiation, the PM-PCM photocatalyst achieved an impressive methylene blue degradation rate of 98%. Additionally, the nanofiber membrane morphology facilitates the efficient recovery of the catalyst, with 98% of the initial degradation efficiency maintained after five photocatalytic cycles. This robust, highly efficient, and recyclable material provides a new approach for catalyst support. To the best of our knowledge, PM-PCM is the first reported photocatalyst of this kind. This cost-effective, functionalized membrane material utilizes solar light as an economical and clean energy source, offering promising potential for sustainable environmental applications.
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Journal of Materials Chemistry C
·
2026
·
IF 5.1
Haoyu Zhao,Guiyong Chen,Yusong Ma,Rongting Guan,Yige Han,Weiwei Xu,Yuhang Liu,Feng Chen
Achieving full-band (2–18 GHz) microwave absorption alongside structural load-bearing capacity remains a formidable challenge. Traditional honeycomb absorbers enhance absorption but often require increased thickness and weight, limiting their practical applicability. To address this, we propose a novel composite gradient honeycomb structure. A gradient in electromagnetic properties is engineered by strategically varying the carbon black (CB) content and distribution within the coating. This creates a continuous gradient in the electromagnetic properties, achieving excellent impedance matching within a wide frequency band. Guided by a CST Studio optimized and closed-loop design framework, we fabricated a 30 mm height sample that achieves a reflection loss (RL) of ≤−10 dB across 2.2–18 GHz. Compared to a uniform absorber, this gradient structure enables broadband absorption with reduced thickness. Critically, the key to the broadband absorption is a multi-scale synergistic mechanism: the gradient architecture prolongs wave propagation within the honeycomb cells and optimizes impedance characteristics while simultaneously enhancing interfacial polarization and conductive loss. This integrated structural-functional design provides a promising pathway for developing lightweight, high-strength, and broadband microwave-absorbing materials.
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MOLECULES
·
2026
·Vol. 31
·期 4
·740
·
IF 5.1
Quan Xiang,Linzhu Zhang,Lu Chen,Ruowen Liang,Renkun Huang,Guiyang Yan
Catalytic systems that couple pollutant degradation with hydrogen evolution have attracted significant attention due to their potential to simultaneously address environmental and energy issues. In this study, an S-scheme heterojunction composed of lamellar polymeric carbon nitride (PCN) anchored with a rod-like cerium metal–organic framework (Ce-MOF) was successfully synthesized via a facile one-step oxidation method, enabling efficient visible-light-driven photocatalytic hydrogen evolution and simultaneous tetracycline degradation. The optimized PCN/Ce-MOF composite delivers a hydrogen production rate of 495.7 μmol g−1h−1and achieves a tetracycline removal efficiency of 78%. Such excellent performance is attributed to the charge transfer mechanism of the S-scheme heterojunction in the PCN-Ce-MOF composite during the reaction process, while retaining the intrinsic redox capabilities of both materials. Meanwhile, mechanistic studies reveal that tetracycline can effectively capture holes during its efficient degradation, inhibit electron–hole recombination, and promote proton reduction to generate hydrogen. This investigation provides valuable insights for the rational design of S-scheme heterojunction photocatalysts, aiming to achieve efficient and stable photocatalytic hydrogen production and synergistic degradation of organic pollutants.
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ADVANCED ENGINEERING MATERIALS
·
2026
·
IF 3.6
Bo Qi,Jie Wang,Mengjuan Wu,Xianghui Hou,Xi Wang,Yuxue Fu
Icing on critical infrastructure causes significant damage and economic losses. Mitigating the issue requires durable icephobic coatings. This study introduces a novel polydimethylsiloxane-based coating, modified with silicone oil and silicon carbide (SiC) fibers to establish an interconnected network. This innovative design notably improved the icephobicity. The icing delay duration increased from 9 s for bare aluminum to 70 s, indicating a higher energy barrier against freezing. The coating exhibited a water contact angle of 128.4°, effectively impeding droplet propagation and improving the thermal efficiency. Additionally, the incorporation of SiC fibers reduced the heterogeneous nucleation sites, thereby enhancing droplet mobility and inhibiting ice formation. The coating demonstrated exceptional mechanical durability, maintaining an ice adhesion strength of 74.8 ± 1.3 kPa with minimal weight loss after 60 icing/deicing cycles. The SiC fiber network effectively mitigated freeze–thaw damage by preventing cracks, ensuring long-term icephobicity. This research provides a practical solution for designing robust icephobic coatings for harsh environments.
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Advanced Optical Materials
·
2026
·
IF 7.2
Yuyang He,Yuting Xu,Yuzhen Wang,Shuai Zhang,Zhiguo Xia
Indium(III)-based hybrid halides are emerging low-dimensional luminescent materials; however, their rigid lattices and d 10 electronic configuration of In 3+ suppress intrinsic self-trapped-exciton (STE) emission, leading to limited photoluminescence quantum yield (PLQY). To address this issue, Sb 3+ is doped into the 0D (Me 2 NH 2 ) 4 InCl 7 host, transforming it from a nearly non-emissive material into a highly efficient warm-white STE emitter. The optimized (Me 2 NH 2 ) 4 InCl 7 :0.2Sb 3+ delivers a near-unity PLQY (∼100%) under 350 nm excitation. Single-crystal structural analysis and theoretical calculations reveal substitutional Sb 3+ at In 3+ sites, inducing locally distorted [SbCl 6 ] octahedra. This Sb 3+ -triggered local lattice distortion strengthens electron–phonon coupling, and it deepens the STE potential well and suppresses non-radiative relaxation pathways, thereby enabling robust broadband STE emission with a microsecond-scale lifetime (4.28 µs), a large Stokes shift (280 nm), and a wide bandwidth (177 nm). This work provides a facile route to realize warm-white emission from a single host lattice based on stable, low-toxicity indium-based hybrid halides.
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JOURNAL OF TEXTURE STUDIES
·
2026
·Vol. 57
·期 2
·e70073
·
IF 3.2
Jingyi Sun,Xiaoming Zhang,Shuxia Wu,Yujuan Xu,Cong Li,Hui Zhou,Baocai Xu
Reducing sodium content compromises the texture and flavor of meat products. This study investigated the combined effects of ultrasonic treatment (UT), yeast extract (YE), and trehalose (TH) on myofibrillar protein (MP) gelation and molecular structure under the low-salt (1.5% NaCl) condition. Compared to low-salt control, the UT-YE-TH treatment markedly enhanced the gel functionality ( p < 0.05). Water-holding capacity (WHC) improved from 69.76% (R) to 85.55% (R-UT-YETH), and gel strength increased from 94.75 to 173.54 g ( p < 0.05). Microstructural analysis showed that the combined treatment generated a more continuous and homogeneous protein network. Circular dichroism revealed a decrease in α-helix content (from 13.6% to 2.0%) and an increase in β-turn (from 21.2% to 27.3%). Intrinsic fluorescence and surface hydrophobicity measurements further confirmed enhanced unfolding and intermolecular interactions, accompanied by elevated total and free sulfhydryl contents. Correlation analysis and principal component analysis (PCA) indicated that increased β-turn fractions and greater hydrophobic exposure were associated with improvements in WHC and gel strength. The combined application of UT, YE, and TH effectively improves MP gelation under the low-salt condition by promoting favorable structural transitions, which provides a practical strategy for producing reduced-sodium cured meat products with enhanced quality.
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POLYMERS FOR ADVANCED TECHNOLOGIES
·
2026
·Vol. 37
·期 3
·e70553
·
IF 3.8
Qinglong Zhang,Wen Zheng,Wangyang Lu,Wenxing Chen
The development of high-performance polybenzoxazole (PBO) materials relies on novel AB-type monomers to overcome challenges in stoichiometric control and enhance material processability. However, significant challenges remain in the molecular structure innovation and efficient synthesis of such monomers. This study successfully developed a novel AB-type self-condensing monomer based on a benzimidazole structure—2-(3-amino-4-hydroxyphenyl)-5-carboxylic acid-1 H -benzimidazole (ACBP). Starting from 3,4-diaminobenzoic acid and 3-nitro-4-hydroxybenzaldehyde, the monomer was efficiently synthesized through cyclization condensation and reduction reactions. This method offered advantages such as simplicity, environmental benignity, and low energy consumption, and achieved a high yield. Experimental results demonstrated that ACBP exhibited excellent storage stability. Furthermore, the monomer was subjected to a programmed temperature-controlled polycondensation reaction in polyphosphoric acid and successfully yielded poly[2,5-(1 H -benzimidazol-2-yl)benzoxazole] (ABPBIO) with an intrinsic viscosity as high as 5.9 dL/g. The structures of the monomer and polymer were systematically characterized using liquid chromatography-mass spectrometry (LC–MS) and nuclear magnetic resonance (NMR), which confirmed their molecular configurations. Performance studies revealed that ABPBIO not only possessed outstanding thermal stability, with 5% weight-loss temperatures ( T 5% ) of 551.6°C in air and 615.2°C in N 2 , and char yields of 44.1% and 76.6%, respectively, surpassing those of similar materials reported in the literature, but also exhibited good gas-phase water adsorption capabilities. Based on these superior properties, the polymer shows promising potential for specialized applications in fields such as firefighting and chemical protection.
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ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Xiaojie Gao,Huaming Dai
Improper disposal of industrial oily waste is environmentally hazardous, yet it constitutes a valuable resource owing to its higher energy density and hydrocarbon content. To tackle this dual issue, the coconversion of the oily waste and biomass was proposed within a porous media reactor, thereby turning waste into energy. An investigation was conducted on the effects of inlet gas conditions, oil-absorbing material properties, and liquid parameters on the temperature distribution and syngas production. The results indicate that the increased air velocity increases the combustion temperature while reducing the reaction time. And the mole fraction of hydrogen reaches its maximum value at an intermediate velocity of 8 cm/s. When methane is employed as an auxiliary fuel, the heating value of syngas significantly increases, and the hydrogen production decreases. The increasing pore diameter of the felt expands the high-temperature zone, which leads to a higher syngas production. As the felt thickness increases, the mole fraction of hydrogen initially rises before decreasing. Although wool felt increases the combustion temperature and reaction time, the hydrogen production is significantly lower than that of the PP-1. The increase in soybean oil volume reduces hydrogen production, while ethanol exhibits the opposite behavior, achieving a maximum value of 13.7%. At a soybean oil-to-ethanol blending ratio of 2:1, the heating value of syngas is higher. This work provides an efficient solution for the environmental treatment of oily wastes, which also demonstrates significant potential for low-cost hydrogen production.
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