CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Kang Yang,Chao Duan,Xin Tong,Chuanyin Xiong,Jian Wang,Yonghao Ni
A novel coaxial wet spinning strategy is reported to fabricate shape stabilized phase change aerogel fibers (C f PCF). • The fibers feature hierarchically porous flower-like PUPCM clusters engineered by CNC-directed hydrogen bonding. • The C f PCF exhibits a high phase change enthalpy (115.6 J/g), ultralow thermal conductivity (0.076 W·m −1 ·K −1 ). • The C f PCF fabrics enable outstanding infrared stealth (Infrared detection temperature decreased by 51 °C). The escalating demand for advanced fibrous materials integrating dynamic thermal management and infrared stealth has spurred continuing innovation. Traditional porous phase change fibers (PCFs) suffer from two critical deficiencies: solid-liquid phase change materials (SLPCMs) leakage and gas-solid interface degradation. Herein, we present a novel coaxial wet spinning strategy to fabricate porous shape stabilized phase change fibers (C f PCFs). The aerogel core is prepared via cellulose nanocrystals (CNCs)-directed crystallization of polyurethane-based shape stabilized PCMs (PUPCMs) that were synthesized through crosslinking polyethylene glycol with hexamethylene diisocyanate, inherently eliminating liquid leakage. Thanks to strong intermolecular hydrogen bonding interactions between CNCs and PUPCMs, in-situ crystallization and assembly of PUPCMs proceed on CNC-directed three-dimensional scaffolds via ice templating, generating flower-like crystal clusters with hierarchical porosity. This unique structure offers dual benefits: 1) Robust anchoring of shape stabilized PUPCM to prevent leakage; 2) Excellent properties of high phase change enthalpy (115.6 J/g) and porosity (69.35%), ultralow thermal conductivity (0.076 W·m −1 ·K −1 ), and superior thermal stability (91.35% enthalpy retention after 600 cycles). The as-woven C f PCF fabric demonstrates exceptional thermal buffering performance, achieving a temperature lag of up to 750 s at 80 °C. This effect stabilizes the temperature through phase-change endothermy and reduces infrared-detected temperatures by 51 °C. This work presents a new pathway for developing next-generation intelligent fibrous materials with integrated functionality.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Hao Wang,Cong Huang,Feiran Li,Suichu Huang,Yunlu Pan
Achieving higher sensitivity is always paramount for the detection of biomolecules in medical applications. Significant efforts have been made to improve the sensitivity of aptamer-functionalized two-dimensional material-based field-effect transistor (A-2DFET) biosensors, typically by increasing the probe density. However, the underlying mechanism by which the probe density affects the sensitivity remains unclear, and a rigorous mathematical model incorporating the probe density is also lacking. In this work, we develop a probe density-incorporated mathematical model of MoS 2 -based A-2DFET biosensors. Analysis of this model reveals an optimal density-which is influenced by the spatial structure, charges of the probe-target complexes, and the binding affinity-is expected to achieve the highest sensitivity. To validate the model, we regulate the probe density by controlling the population of gold Nano-islands (AuNIs), which function as aptamer anchoring sites, before investigating the sensitivity of different devices. Detection experiments targeting interferon-gamma (IFN-γ) demonstrate that the sensitivity trend across different probe densities, initially increasing and then decreasing as the probe density rises, is consistent with the prediction of the model. By elucidating the mechanistic role of probe density in determining the sensitivity, this study provides an important theoretical basis for the design and application of A-2DFET biosensors.
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ANALYTICA CHIMICA ACTA
·
2026
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IF 6.1
Jinhui Liu,Jing Cheng,Wanqing Wu,Jiaqi Niu,Ziyang Zhang,Ping Guo,Min Du
The rapid detection of polyethylene terephthalate (PET) nanoplastics (PET NPs) is hindered by their low concentration, high mobility and lack of a distinguishable interface with other nanoplastics. In this study, we developed an SnS 2 @MoS 2 /APTES amino-functionalized photoelectrochemical sensor capable of detecting PET NPs with high specificity. The SnS 2 @MoS 2 heterojunction synthesized via in situ hydrothermal synthesis and the APTES self-assembled amino-functionalized interface enable PET NPs to interact with amino-functionalized interface at multiple sites through oxygen-containing groups such as ester groups, carbonyl oxygen and ether oxygen. The sensor exhibits a detection range of 0.5-800 μg mL −1 for PET NPs, with a detection limit of 0.17 μg mL −1 . DFT calculations further indicate that the PET-APTES system exhibits a lower adsorption energy (−1.37 eV) and a more significant interfacial charge rearrangement, demonstrating that the APTES amino siloxane interface exhibits a polymer structural selectivity toward PET. Furthermore, this PEC sensor exhibits good recovery rates (96.04%-102.76%) in practical water samples such as seawater, bottled water and tap water. It provides a new method for interface recognition and signal conversion for the specific PEC detection of PET nanoplastics.
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LANGMUIR
·
2026
·
IF 4.4
Zhi-Yang Zhang,Zhong-Zhi Han,Chun-Yan Li,Chen-Zheng Yan,Song-Hai Wu,Yong Liu,Xu Han
Although incorporating nanomaterials into waterborne epoxy (WEP) coatings can enhance their barrier properties and corrosion resistance, the apparent agglomeration of nanomaterials and their poor compatibility with WEP inevitably constrain the service life and industrial applications of coatings. Herein, a multifunctional nanomaterial has been successfully prepared to improve the anticorrosion performance and service life of WEP coating. When polydopamine (PDA) is used to modify molybdenum disulfide (MoS2), the abundant catechol groups on the surface of PDA-MoS2 nanomaterials can effectively chelate metal ions, thus in turn providing active sites for the growth of layered double hydroxides (ZnAl LDH-VOx). Through this efficient design, PDA-MoS2@ZnAl LDH-VOx nanomaterials are uniformly dispersed in WEP, and the PDA-MoS2@ZnAl LDH-VOx/WEP composite coating exhibits high anticorrosion performance with a low-frequency impedance (|Z|0.01 Hz) of 7.65 × 1010 ohm·cm2 in 3.5 wt % NaCl solution after Day 180. The enhanced |Z|0.01 Hz value of the scratched PDA-MoS2@ZnAl LDH-VOx/WEP composite coating indicates its self-healing property. Moreover, PDA-MoS2@ZnAl LDH-VOx nanomaterials enhance the abrasion resistance of the WEP coating, thus contributing to the long-term service life of the coating. In the WEP coating, PDA-MoS2@ZnAl LDH-VOx nanomaterials not only improve its barrier properties but also endow it with a Cl– trapping effect and self-healing properties. This study provides new insights into the design of nanomaterials with multiple functions and the development of WEP composite coatings with long-term anticorrosion performance.
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高影响因子
NEW CARBON MATERIALS
·
2026
·Vol. 41
·期 1
·109-125
·
IF 7.2
Yuanxiao Ji,Weiye Zhang,Jiarui Xue,Jiyuan Zhang,Yunping Ge,Nan Zhu,Ruibin Jiang,Zhibin Lei,Zonghuai Liu,Jie Sun
Despite their high theoretical capacity and energy density, lithium-sulfur (Li–S) batteries still face challenges such as soluble lithium polysulfides (LiPSs) shuttling and sluggish redox kinetics. In this work, we used a novel MoS 2 -Mo 2 C heterostructure anchored on a carbon sponge (CS) as a Li 2 S host to solve these problems. A simple hydrothermal process following carbothermal reduction was used to construct the MoS 2 -Mo 2 C heterostructure, enabling control of the phases and integration of MoS 2 and Mo 2 C. Structural characterization confirmed the coherent interface of the heterostructure with a precise orientation relationship between the two phases and their uniform distribution. An evaluation of the adsorption and catalytic performance of the material showed that it has an exceptional LiPSs adsorption capacity with faster conversion from Li 2 S 4 to Li 2 S 2 . Density functional theory calculations further confirmed these results. As a result, the cathode had a high initial discharge capacity of 693 mAh g −1 at 0.2 C and achieved stable cycling at 2 C for 500 cycles with a low decay rate of 0.107% per cycle. The heterostructure design, coupled with the macroporous CS framework, effectively prevented the shuttling and increased sulfur utilization, offering a promising way to produce practical high-energy-density Li–S batteries. Download: Download high-res image (95KB) Download: Download full-size image
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Dan Yang,Chen Xin,Wenzhan Zhang,Yitao Lou,Zhongchao Bai,Ting Xiong
In-situ 1 T/2H MoS 2 heterointerfaces synergistically combine 2H light-harvesting with 1 T conductivity for enhanced charge separation. • Optimized MoS 2 features expanded interlayer spacing and abundant active sites, accelerating Zn 2+ diffusion and redox kinetics. • The PRZIB delivers 340 mAh g −1 under illumination (vs. 237 mAh g −1 in dark) and achieves 1.2% photoconversion efficiency. • Photo-recharging couples Zn 2+ extraction with photoelectron-driven Zn deposition, while flexible devices demonstrate stable power output for LEDs. Photo-rechargeable Zn-ion batteries (PRZIBs) are constrained by photocathodes lacking efficient light harvesting, fast transport, and reversible Zn 2+ storage. Herein, we develop a temperature-controlled hydrothermal strategy to construct in-situ 1 T/2H MoS 2 photocathodes with tunable interlayer spacing and defect density. The optimized sample synthesized at 140 °C exhibits enlarged interlayer spacing, abundant active sites and an intimate 1 T/2H phase interface, which accelerate Zn 2+ diffusion and redox kinetics. Moreover, the semiconducting 2H domains absorb light while metallic 1 T domains extract photogenerated electrons, enabling synergistic charge separation. Consequently, the PRZIB achieves a photoconversion efficiency of 1.2% and a discharge capacity of 340 mAh g −1 under illumination, versus 237 mAh g −1 in the dark at 0.1 A g −1 . Mechanistically, quasi-in-situ XRD reveals that photo-recharging couples Zn 2+ extraction with photoelectron-driven Zn deposition, while discharge reverses via intercalation/stripping, as confirmed by reversible (002) reflections. Additionally, flexible devices demonstrate stable power output, driving a biomimetic bird and an LED. Overall, this work highlights heterophase junction engineering as a promising route for integrated photo-rechargeable systems.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
·
IF 10.6
Jinhui Li,Yanhai Shao,Qicheng Feng,Xiang Wang,Zhiwei Li
Gold (Au) has garnered significant attention due to its crucial applications in various fields, yet its green and sustainable recovery remains challenging. While cyanide has been the preferred leaching agent for over a century, its high toxicity and unsuitability for carbonaceous and high-copper ores limit its use. Thiosulfate shows potential for treating refractory gold ores, but its high consumption and low oxidation kinetics are obstacles. This study introduces a photocatalytic process that directly oxidizes gold by generating highly reactive free radicals via photocatalysis, while also oxidizing mineral sulfur to produce thiosulfate in situ. This enhances gold dissolution efficiency and reduces thiosulfate consumption. Electron paramagnetic resonance (EPR), time-of-flight secondary ion mass spectrometry (ToF-SIMS), and density functional theory (DFT) calculations elucidate the oxidation processes of Au and S by •OH and O 2 •− . Additionally, •OH directly participates in the cathodic reaction, significantly lowering the oxidation energy barrier of Au. The entire leaching process avoids strong acids, toxic compounds, and volatile reagents, enabling the direct extraction of insoluble gold ore by wet methods and offering a novel path for the green and sustainable development of precious metals.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Nan Wang,Riguo Mei,Zhongwei Chen,Tao Yang,Xidong Lin,Qingxia Liu
Electronic-interface-confinement synergy enables full CO 2 -to-CH 4 conversion. • Achieves 65.4% CH 4 FE and 100 h stability with non-Cu catalyst, a new benchmark. • Nanoconfinement steers CO 2 -to-CH 4 by stabilizing intermediates and lowering HCOOH→HCO→H 2 CO* barrier. • S-vacancies and FeCo/Mo-edge electronic synergy boost activity and selectivity. • Topological transformation constructs tunable multi-shelled confinement nanoreactors. The electrochemical CO 2 reduction reaction (CO 2 RR) still faces critical challenges in achieving rapid product conversion and precise selectivity control due to kinetic limitations and thermodynamic competition. To overcome these limitations, this study develops a hierarchical hollow multi-shell FeCo@MoS 2 catalyst that integrates electronic modulation with nanoconfinement, thereby achieving kinetic enhancement and directional steering of methane production. This enhanced performance stems from two factors: sulfur vacancy-rich monolayer MoS 2 that enhances carrier mobility, and the synergistic effect of strong Mo-edge/FeCo coupling combined with nanoscale confinement for site stabilization. The optimized FeCo@MoS 2 -p30 (with pore size ≈30 nm) delivers a high methane Faradaic efficiency of 65.4% with 80 mA cm −2 at −1.0 V vs. RHE and exceptional operational stability for over 100 h. The computational results reveal that FeCo@MoS 2 -p30 promotes efficient methane production by steering the reaction pathway through a sequence of key intermediates. The nanoconfinement effect selectively stabilizes the adsorption of HCOO*, HCOOH*, HCO*, and H 2 CO* (favoring the HCOO* pathway over COOH), thereby redirecting the selectivity toward CH 4 . This is achieved by substantially reducing the energy barrier for the rate-determining HCOOH* → HCO* hydrogenation steps. Download: Download high-res image (167KB) Download: Download full-size image
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Zhe Yu,Jiahao Zhou,Yiming Yang,Yuxuan Yang,Xiufang Chen,Fengtao Chen,Wangyang Lu
To enhance the utilization rate of hydrogen peroxide (H 2 O 2 ) at neutral pH for degrading refractory organic pollutants in aqueous solutions, a novel FeOF/MoS 2 catalyst was synthesized hydrothermally. The as-prepared catalyst was systematically characterized using XRD, FT-IR, Raman spectroscopy, XPS, TEM, and BET. Its performance was evaluated in a heterogeneous H 2 O 2 activation system using p -nitrophenol ( p -NP) as a model pollutant. Under neutral conditions, p -NP in aqueous solution was completely removed within 15 min in the FeOF/MoS 2 /H 2 O 2 system, demonstrating the outstanding catalytic activity of FeOF/MoS 2 in activating H 2 O 2 . This enhancement is attributed to an increase in H 2 O 2 utilization from 31% to 67%. Furthermore, FeOF/MoS 2 was loaded into the macropores of a SiC ceramic membrane to construct a catalytic membrane reactor. During continuous filtration of the p -NP solution, a removal rate of 60% was maintained over 12 h, indicating sustained catalytic stability. OH as the dominant reactive oxygen species (ROS) was identified in the degradation process through radical quenching tests and electron paramagnetic resonance (EPR) analysis. A possible degradation pathway was proposed based on intermediates detected by liquid chromatography-mass spectrometry (LC-MS). This work provides an effective strategy for boosting H 2 O 2 -driven catalytic oxidation in wastewater treatment under neutral conditions.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
·
IF 10.6
Qingsong Zhang,Xihao Li,Longwei Zhang,Yang Xiao,Qingyi Zeng
Reducing soluble U(VI) to insoluble U(IV) is an efficient uranium extraction strategy. However, the two axial oxygen atoms in uranyl (UO 2 2 + ) create a kinetic barrier to electron transfer, hindering U(VI) reduction. Here, we present an innovative strategy that leverages the hydrogen evolution reaction (HER) to generate a localized alkaline microenvironment at the catalyst surface; OH⁻ accumulation rapidly precipitates UO 2 2 ⁺ as insoluble UO 2 (OH) 2 , enabling efficient uranium extraction from water. In this process, the S-rich hollow MoS 2+x with high HER activity, which was derived from the Mo-MOF grown on carbon felt (CF), was used as the cathode (MoS 2+x /CF) in a photovoltaic-driven electrocatalytic system. The anode consists of a TiO 2 nanorod array on FTO glass, coupled with a rear-mounted silicon solar cell. Due to the localized alkaline microenvironment formed by the HER on the MoS 2+x /CF cathode surface, this electrocatalytic system achieves 99.8% uranium removal from uranium-containing wastewater within 30 min of illumination. Density functional theory (DFT) calculations and experimental results confirm that unsaturated edge S atoms in MoS 2+x significantly enhance HER activity. Additionally, the electron transfer between uranium and edge S enhances uranium adsorption and promotes its interfacial reaction with OH*. This work opens new perspectives for uranium extraction from aqueous solutions.
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Micromachines
·
2025
·Vol. 16
·期 7
·754
·
IF 3
Shuang Fan,Yangyang Gong,Suliang Chen,Yingmeng Zhang
Layered transition metal dichalcogenides (TMDs) have gained considerable attention as promising cathodes for aqueous zinc-ion batteries (AZIBs) because of their tunable interlayer architecture and rich active sites for Zn2+storage. However, unmodified TMDs face significant challenges, including limited redox activity, sluggish kinetics, and insufficient structural stability during cycling. These limitations are primarily attributed to their narrow interlayer spacing, strong electrostatic interactions, the large ionic hydration radius, and their high binding energy of Zn2+ions. To address these restrictions, an in situ organic polyaniline (PANI) intercalation strategy is proposed to construct molybdenum disulfide (MoS2)-based cathodes with extended layer spacing, thereby improving the zinc storage capabilities. The intercalation of PANI effectively enhances interplanar spacing of MoS2from 0.63 nm to 0.98 nm, significantly facilitating rapid Zn2+diffusion. Additionally, the π-conjugated electron structure introduced by PANI effectively shields the electrostatic interaction between Zn2+ions and the MoS2host, thereby promoting Zn2+diffusion kinetics. Furthermore, PANI also serves as a structural stabilizer, maintaining the integrity of the MoS2layers during Zn-ion insertion/extraction processes. Furthermore, the conductive conjugated PANI boosts the ionic and electronic conductivity of the electrodes. As expected, the PANI–MoS2electrodes exhibit exceptional electrochemical performance, delivering a high specific capacity of 150.1 mA h g−1at 0.1 A g−1and retaining 113.3 mA h g−1at 1 A g−1, with high capacity retention of 81.2% after 500 cycles. Ex situ characterization techniques confirm the efficient and reversible intercalation/deintercalation of Zn2+ions within the PANI–MoS2layers. This work supplies a rational interlayer engineering strategy to optimize the electrochemical performance of MoS2-based electrodes. By addressing the structural and kinetic limitations of TMDs, this approach offers new insights into the development of high-performance AZIBs for energy storage applications.
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Mahmoud A. Ali,Xingliang Jiang,Qin Hu,Hang Zhang,Ahmed S. Menesy,Ruta W. Deusdedith
Silicone rubber is widely recognized for its hydrophobic and mechanical properties, making it a suitable material for high-voltage insulation. This study investigates a novel approach to improving these properties by incorporating two-dimensional (2D) nanomaterials into liquid silicone rubber (LSR). Particularly, exfoliated tungsten disulfide (WS 2 ) and molybdenum disulfide (MoS 2 ) nanosheets are implemented and contrasted with their nanoparticle counterparts. To improve dispersion and interfacial bonding, all fillers were surface-functionalized using (3-aminopropyl) triethoxysilane (APTES). The results demonstrate that the incorporation of 2D nanosheets leads to substantial enhancement in hydrophobicity, mechanical strength, and electrical insulation. The composites achieved the highest hydrophobicity classification (HC1) according to the IEC TS 62073 standard, with a maximum contact angle of 139.9°, a 32% improvement over nanoparticles and unfilled samples. Mechanical tests according to ISO 37 showed increases of up to 68% in tensile strength and 72% in elongation at break. Furthermore, electrical insulation tests demonstrated that breakdown voltage improved by 17.9% and flashover voltage by 17.3% for nanosheet-filled samples. The results emphasize the efficacy of APTES-functionalized 2D nanosheet materials in the advancement of silicone rubber insulators for outdoor high-voltage applications, leading to a substantial enhancement in their performance and longevity.
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