Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 3
·122400
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IF 7.5
Longjie Lai,Jie Tao,Yutao Xue,Xusheng Suo,Juan Liu,Qi Liu,Aihua Yuan
Interfacial engineering in heterostructure photocatalysts is crucial for efficient charge migration, yet achieving rational and controllable interface design remains a major challenge. In this work, SnIn 4 S 8 nanosheets were in situ grown on the octahedral surface of MIL-101(Cr) to leverage the Lewis acid-base properties of Cr and S, thereby enabling the controlled construction of an ion-coordinated interface. The resulting MIL-101(Cr)@SnIn 4 S 8 heterojunction enabled efficient capture and conversion of CO 2 and H 2 O. Furthermore, the Lewis acid-base coordination induces interfacial electron density redistribution, generating a built-in electric field that drives the formation of an S-scheme heterojunction between MIL-101(Cr) and SnIn 4 S 8 , while simultaneously preserving high‑energy photogenerated electron-hole pairs. Consequently, MIL-101(Cr)@SnIn 4 S 8 exhibited superior CO 2 photoreduction performance with H 2 O in the gas-solid phase, delivering a CO evolution rate of 26.9 μmol·g −1 ·h −1 . This work provides a viable strategy for interfacial engineering and demonstrates the application potential of S-scheme heterojunctions in photocatalytic reactions.
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JOURNAL OF LUMINESCENCE
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2026
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IF 3.8
Jianan Wang,Fu Du,Jiangyan Xu,Jiaqing Peng,Yipeng Liu,Yali Sun,Daowang Liu,Decai Huang,Xinyu Ye
Mini/Micro-LED backlight systems require color conversion layers that combine submicron size with high absorption efficiency. However, commercial phosphors are difficult to meet this demand due to their relatively large particle size. The Cs 2 MnF 6 system demonstrates a unique advantage due to its intrinsic high absorption efficiency. In this study, submicron-sized Cs 2 MnF 6 was successfully prepared via anti-solvent synthesis method. Furthermore, a Si 4+ reverse doping strategy was employed (Cs 2 MnF 6 :Si 4+ ) to effectively suppress concentration quenching. At the optimal doping concentration, the emission intensity reaches 3523 times that of the undoped Cs 2 MnF 6 host. Subsequently, surface passivation treatment was applied with a Mn 4+ -free Cs 2 SiF 6 coating. This treatment not only suppressed surface quenching, further increasing the luminescence intensity, but also significantly improved the material's moisture resistance. The finally obtained Cs 2 MnF 6 :Si 4+ @Cs 2 SiF 6 phosphor has an average particle size of approximately 800-900 nm and a high absorption efficiency of 48.4%. Its luminescence intensity is 4.25 times that of the un-passivated sample. And this material retained 75% of its initial luminescence intensity after 240 minutes of immersion in deionized water. In contrast, the untreated sample remained only 16.4%. These advancements highlight the significant potential of this material in mini/micro-LED backlight systems, offering new possibilities for the development of next-generation display technologies.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yang Gao,Xian Du,Zhuo Li,Lihan Wang,Bo Tian,Ruixue Tian,Huiling Du
With the development of industry, large quantities of volatile organic compounds (VOCs) not only cause damage to the ecological environment, but also pose a serious threat to human health. At present, most photocatalysts used for benzene treatment still suffer from problems such as narrow light absorption range, high electron-hole recombination rate, and low charge transfer efficiency. Therefore, the development of high-performance photocatalysts is extremely urgent. The introduction of oxygen vacancies and the construction of heterojunctions can effectively solve the above problems. In this study, a defect-rich photocatalyst was combined with a topology-structured metal-organic framework (MOF) to construct a tightly coupled heterojunction, aiming to address these issues and improve the photocatalytic degradation performance of benzene. By introducing oxygen vacancy-rich TiO₂ nanosheets into NH₂-MIL-125, a tightly coupled Z-scheme heterojunction composite photocatalyst is fabricated. The benzene degradation efficiency of the composite reaches up to 98.5%, which is 1.47 times and 1.27 times that of pure NH₂-MIL-125 and oxygen vacancy-rich TiO₂, respectively, while also exhibiting remarkable stability and high adsorption capacity. Oxygen vacancies act as active sites that strengthen the interfacial electronic interaction of the composite, thereby optimizing the electron transport pathway of the heterojunction and improving the carrier separation efficiency. Under the dual modulation of the heterojunction and oxygen vacancies, the built-in electric field is further intensified, leading to a significant enhancement in the adsorption and catalytic performance of the composite. This study provides an effective design strategy for utilizing oxygen vacancy-driven heterojunctions in catalysts for the efficient abatement of VOCs.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
·
IF 19.7
Boyang Zhang,Zhiyong Zhang,Yangfan Li,Yangqi Wei,Xingmiao Huang,Chuncheng Chen,Hua Sheng,Jincai Zhao
Post-synthetic strategy modularly integrates CO 2 -to-CO and CO-to-C 2+ sites. • Redox mediator and confinement synergize to regulate cascade reactions. • Confined TEMPOL acts as PCET mediator, lowering CO 2 -to-*COOH barrier. • Inactive MOF is transformed into an efficient CO 2 -to-C 2+ electrocatalyst. Efficient electrochemical conversion of CO 2 to multi-carbon (C 2+ ) products requires the integration of two sequential functionalities: CO 2 activation to *CO and subsequent CO-initiated C-C coupling. Conventional strategies typically rely on the rigid, pre-designed incorporation of these two functional units during catalyst synthesis. In contrast, we propose a post-synthetic modification strategy that introduces a molecular CO 2 activation unit into a pre-formed catalyst scaffold, thereby enabling its spatially proximal coupling with intrinsic CO reduction sites. This concept is demonstrated by encapsulating 4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPOL) into the pores of a tetrapyrazolylporphyrin copper-based metal–organic framework (FICN-8). Owing to the well-matched molecular dimensions, the confined TEMPOL and adjacent Cu nodes cooperatively define a cavity that spatially accommodates a CO 2 molecule. Reduced TEMPOL acts as a proton-coupled electron transfer (PCET) mediator, while spatial confinement regulates the local reaction environment, jointly lowering the free energy barrier for *COOH formation. The confined *COOH intermediate is subsequently converted to CO and further undergoes C–C coupling. As a result, FICN-8—originally inactive for CO 2 -to-C 2+ conversion (Faradaic Efficiency, FE< 0.6%)—is transformed into an efficient electrocatalyst, delivering a C 2+ Faradaic efficiency of 42.6% with a two-orders-of-magnitude enhancement in C 2 H 4 formation rate. Download: Download high-res image (123KB) Download: Download full-size image
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CLAY MINERALS
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2026
·
IF 2.1
Huan Zhang,Hang Lu,Zhihui Mao,Zongyang Liu,Siyuan Wang,Wenbo Wang
Low-grade attapulgite clay intergrowths, composed mainly of attapulgite, illite, calcite and quartz, are abundant. The intimate intergrowth among these phases buries active surfaces under inert components, limiting performance and hindering value-added utilization. Herein, a multi-scale structural regulation strategy was employed. Sieving and water washing removed inert components for compositional regulation. High-speed shearing and ultrasonic treatment broke soft agglomerates and exposed active surfaces, achieving aggregation state regulation. Controlled thermal treatment removed channel water, activated exchangeable sites and enhanced negative surface charge, thereby regulating structural and surface chemistry. These steps progressively modified the material from its macroscopic composition down to its atomic-level surface properties. After the regulation, Pb2+ adsorption capacity increased from 153.1 to 237.5 mg g–1. The material remained effective even at pH 1 and reduced Pb2+ from 1000 to 0.83 μg L–1, well below the World Health Organization (WHO) guideline of 10 μg L–1. X-ray diffraction, X-ray photoelectron spectroscopy and quantitative cation release analysis were performed to elucidate the adsorption mechanism. Ion exchange dominated by Ca-rich mineral serves as the primary pathway. Cation exchange on silicate surfaces, forming PbSiO3, provides a key supplementary contribution. Electrostatic attraction and in situ precipitation participate synergistically. This work establishes a theoretical foundation and offers a reagent-free, industrially feasible route for the value-added utilization of low-grade intergrown clay resources in environmental remediation.
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Journal of Energy Storage
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2026
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IF 10.7
Yunhao Wu,Yizhan Gao,Jiaxuan Li,Zhen Wang,Zhigang Shao,Juan Zhang,Jianling Li
2D layered MXene, which holds multiple outstanding properties, like large specific surface area, abundant functional groups, and ultra-high electronic conductivity, have been an attractive anode material for lithium-ion energy storage. However, its practical application is greatly hindered by its limited capacity. Aiming at addressing this problem, this article innovatively proposes to mix NH 4 PF 6 with MXene for sintering, achieving P-doping between MXene layers and the transformation of Ti O and Ti-O-P functional groups. After 1700 cycles of 150 mA g −1 , the modified material still has a high specific capacity of over 250 mAh g −1 , and after 800 cycles of 1500 mA g −1 high current, it still has a capacity retention rate of over 100%. The in-situ XRD, XPS, DFT calculations and other methods have been used to demonstrate that the uniformly distributed phosphorus rich functional groups between MXene layers significantly expand the interlayer spacing, provide more active sites for lithium-ion storage, effectively promote Li + adsorption, and improve capacity and rate performance.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Zhiwei Jiang,Yaping You,Hui Zhang,Cihui Liu,Shaohong Wu,Zixiang Li,Songchao Fu,Xia Liu,Yiran Jing,Yuzhen Li,Cheng Chen,Lehao Ren
A bioinspired self-pumping Janus paper electrode was developed for wet-skin ECG. • Asymmetric wettability (127°/28°) enabled directional liquid transport within 10 s. • The interface combined wet adhesion, high breathability, and conductive stability. • Stable ECG signals were acquired during sweating, walking, and brief submersion. • The platform offers active liquid management for wet-stable epidermal bioelectronics. Wet epidermal electrocardiogram (ECG) interfaces commonly suffer from the coupled deterioration of adhesion, breathability, and signal fidelity under sweating and motion. Here, we report a self-pumping Janus paper electrode comprising a skin-contacting hydrophobic polydimethylsiloxane (PDMS)-based adhesive layer, a mechanically compliant interlayer, and an outer hydrophilic carbon-nanotube (CNT)-doped porous paper layer. A coupled wettability and pore-size gradient promotes directional drainage of interfacial liquid away from the skin–electrode contact. The interface exhibits asymmetric wettability (127°/28°), directional liquid transport within 10 s, measurable water uptake, adhesion on moist skin, water-vapor permeability, and stable ECG acquisition during sweating and walking. Distinct from Janus liquid-transport materials or wet-adhesive ECG interfaces that primarily address either directional wetting or adhesion, this work presents a coupled-gradient capillary-rectification strategy in which wettability and pore-size gradients generate an asymmetric capillary-pressure landscape. The paper-based interface integrates wet adhesion, water-vapor permeability, liquid management, and ECG signal acquisition, providing a strategy for stable wet-skin ECG monitoring under the tested conditions.
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JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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2026
·
IF 1.7
Hui Tang,Qiao Jiang,Songlin Zhu,Qiang Yang,Hong Gu,Pei Liu,Tao Hong,Zehua Li,Yangchun Leng
210 Po is a natural radioactive nuclide, belonging to the uranium series decay product, with high toxicity alpha radiation characteristics, widely present in environmental media such as soil. It poses a potential internal radiation risk to human health, therefore accurate monitoring of 210 Po in soil is of great significance for public health and radiation environment regulation. At present, there is a lack of standardized analysis methods for 210 Po in soil media both domestically and internationally, resulting in inconsistent quality of monitoring data. Based on extensive literature research and multi institutional experimental verification, this study proposes a soil 210 Po analysis method that combines wet acid digestion and spontaneous deposition followed by alpha spectroscopy. The HNO 3 + HCl + HF (3:2:1) mixed acid system is used to optimize key parameters such as digestion temperature (160 °C), self deposition acidity (0.2–0.5 mol/L HCl), and ascorbic acid dosage (0.5 g). The method has been validated by 8 radiation monitoring institutions in China, showing a method detection limit (MDL) of 1.0 × 10 −3 Bq/g and a limit of quantification (LOQ) of 4.0 × 10 −3 Bq/g, a precision (RSD) of 2.5–14% and a spike recovery rate of 107–108% for method accuracy evaluation. It has good accuracy, repeatability, and universality, and is suitable for daily environmental monitoring needs.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Tiankun Hui,Yajing Yang,Fei Diao,Haihan Fan,Jie Chen,Yan Li,Yingjie Song,Chenchen Fu,Meijie Jia,Wenwei Han,Tengbo Yu,Jianye Fu
A nerve guidance conduit (NGC) based on MXene-MnO₂ hydrogel is developed for the regeneration of peripheral nerves. • The NGC possesses the dual advantages for promoting Schwann cell proliferation and alleviating chronic inflammation. • The NGC can actively regulate the neural regeneration microenvironment and promote angiogenesis. • The NGC can promote neurofilament formation, remyelination and prevent muscle atrophy. Peripheral nerve regeneration remains a major challenge in clinical due to persistent inflammatory microenvironments and oxidative stress that impede functional recovery. In this study, we designed a bio-responsive nerve guidance conduit (NGC) based on a MXene-MnO₂ nanocomposite hydrogel that actively orchestrates the regenerative microenvironment through material-mediated biological crosstalk. Unlike conventional passive conduits, our system leverages the unique properties of two-dimensional MXene to enhance Schwann cell proliferation, while MnO₂ nanoparticles act as catalytic anti-oxidative modules that continuously neutralize ROS and resolve chronic inflammation. This dynamic intervention promotes a timely immune transition to shift macrophages from M1 to M2 phenotype, which facilitates angiogenesis within the injury site. In vivo tests further revealed that the treatment group not only exhibited increased neurofilament number and reduced muscle atrophy but also showed significantly enhanced remyelination. The modular design and catalytic microenvironment-regulation strategy represent a new direction in neural interface engineering. This work provides a scalable and effective platform for advanced neural repair applications and material-guided immunomodulation in regenerative medicine. Illustration of nerve regeneration promoted by MXene-MnO₂ nanocomposite hydrogel NGCs via scavenging ROS and facilitating macrophage polarization towards the M2 phenotype. Download: Download high-res image (265KB) Download: Download full-size image
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INORGANIC CHEMISTRY COMMUNICATIONS
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2026
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IF 5.9
Piaoyu Yan,Bao Jiang,Jing Zhou,Jiawen Liu,Wanxiu Xi,Ensheng Wang,Xiuhua Cui,Zhaohui Chen
Birefringent crystals exhibit significant advantages in the field of polarization modulation due to their intrinsic optical anisotropy. However, the synergistic optimization of bandgap and birefringence remains a pivotal scientific challenge, as both properties are critically dependent on the underlying crystal structure. Herein, a fluorination-guided strategy was employed to design a crystal featuring both large birefringence and deep-ultraviolet transparency. Consequently, a crystal, [CN 4 H 8 ]SiF 6 , was successfully synthesized by incorporating fluorinated [SiF 6 ] 2− octahedron and π-conjugated [CN 4 H 8 ] 2+ moiety, as well as the spatial orientation of [CN 4 H 8 ] 2+ moiety was regulated. As expected, the [CN 4 H 8 ]SiF 6 possesses a wide bandgap of 6.57 eV and a large birefringence of Δ n = 0.062 @ 546 nm. By combining experimental characterization and the first principles calculations, we elucidate that the highly polarizable [CN 4 H 8 ] 2+ cation and the dense hydrogen-bonding networks of [SiF 6 ] 2− anions jointly dictate the optical properties of the material. This work not only identifies [CN 4 H 8 ]SiF 6 as a superior candidate with an optimal trade-off between bandgap and birefringence, but provides a design paradigm for expanding the deep-ultraviolet material through coupling anisotropic organic template with fluoro-inorganic framework.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Qiu-ran Lu,Ying-jie Sun,Ya-mei Xue,Xiao-jing Wang,Hui-ying Mu,Fa-tang Li
A dual-scale Ag-Bi/TiO 2 -Ov architecture couples photogenerated electrons with interfacial protons, resolving the kinetic disconnect in CO 2 methanation. • Adjacent Ag-Bi sites synergistically lower the barrier for *COOH formation while facilitating proton spillover from TiO 2 -Ov. • The optimized photocatalyst achieves a CH₄ evolution rate of 75.17μmol·g −1 ·h −1 with 97.2% selectivity under sacrificial-agent-free conditions. Solar-driven CO 2 -to-CH 4 conversion could help close the anthropogenic carbon loop, yet its practical realization is consistently undermined by poor selectivity and a kinetic disconnect between interfacial electron transfer and proton availability. Herein, we address these limitations by constructing a dual-scale architecture that deliberately couples proton spillover dynamics with CO 2 activation pathways. Highly dispersed Ag-Bi hetero-bimetallic nanoalloys are integrated onto oxygen-vacancy-enriched TiO 2 through a one-step reductive transformation of metal oxyacid precursors, establishing atomically intimate Ag-Bi dual active sites. Operando diffuse reflectance infrared Fourier transform spectroscopy coupled with density functional theory calculations reveals that this bimetallic interface not only lowers the *CO 2 →*COOH free-energy barrier and stabilizes *CO intermediates to suppress parasitic desorption, but also orchestrates directional proton spillover via localized electrostatic modulation. Electrons relayed from the oxygen-vacancy-rich TiO 2 converge spatially with protons generated in situ at surface oxygen vacancies, establishing a concerted proton-coupled electron transfer channel that governs the sequential hydrogenation of adsorbed *CO to CH 4 . Guided by this mechanistic rationale, the optimized photocatalyst (A 1 B 1 T30) achieves a CH 4 production rate of 75.17 μmol·g −1 ·h −1 with 97.2% selectivity. By resolving how electrons and protons converge at the interface, the work identifies a concrete materials lever for selective C 1 photoreduction. Download: Download high-res image (196KB) Download: Download full-size image
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COMPOSITES COMMUNICATIONS
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2026
·
IF 8.6
Hailong Liu,Mingzhan Li,Yiqi Wu,Yuan Li,Li Yin,Yinchuan Pu,Gang Li,Yudong Huang
Electrostatic self-assembly of PPI and MXene creates a multifunctional interface on carbon fibers. • Interfacial shear strength increases by 43.9%, and flame retardancy reaches UL-94 V-0 rating. • The HRR is reduced by 53.4%, and COp by 76.9%. • The inherent trade-off between flame retardancy and mechanical properties in CFRPs is overcome. • This mild modification method not only preserves fiber tensile strength but also enhances surface energy and wettability. The practical application of carbon fiber-reinforced epoxy resin composites (CFRPs) is hindered by weak fiber-matrix interfacial adhesion and the inherent flammability of epoxy resins. In this study, a multifunctional integrated interface was innovatively constructed on the carbon fiber surface via electrostatic self-assembly of polyhedral oligomeric silsesquioxane based nanocomponents (PPI) and MXene nanosheets. This mild modification strategy preserves the intrinsic tensile strength of the fibers while significantly enhancing surface wettability and surface energy. The resulting PPI-MXene hybrid interface substantially improves interfacial adhesion, achieving a 43.9% increase in interfacial shear strength compared to unmodified CFRPs. The optimal composite, 5-MPCF/EP, exhibits outstanding mechanical performance, with interlaminar shear strength, flexural strength, and unnotched impact strength increased by 30.9%, 30.1%, and 50.6%, respectively. Moreover, the integrated interface endows the composites with exceptional flame retardancy, achieving a UL-94 V-0 rating and a limiting oxygen index of 35.4%. Cone calorimetry tests reveal significant reductions in peak heat release rate (53.4%), total heat release (33.2%), and carbon monoxide production (76.9%). The synergistic flame-retardant mechanism involves physical barrier formation, radical scavenging, catalytic carbonization, and thermal reflection. This work overcomes the longstanding trade-off between flame retardancy and mechanical properties in CFRPs, offering a promising strategy for developing high-performance, fire-safe composites. Download: Download high-res image (417KB) Download: Download full-size image
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