CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Ming Li,Jinyun Xu,Haitao Liu,Wancun Huo,Yanyan Ji,Mingming Feng,Shuai Feng,Caixia Liu,Qingqing Zhu,Wenju Zhu,Chunming Zheng,Xiaohong Sun
Bipolar membranes (BPMs) enable efficient water dissociation into protons and hydroxide ions for sustainable energy conversion and resource recovery, yet conventional BPMs face challenges including high overpotential, environmental drawbacks of synthetic polymers, and the conductivity-stability trade-off. Herein, we develop a robust and eco-friendly BPM by in-situ embedding layered double hydroxide (LDH) nanosheets into a fully biomass-derived matrix of polyvinyl alcohol (PVA) and quaternized chitosan (QCS). The optimized membrane (BM-QPL-4) achieves a low transmembrane voltage of 0.746 V at 100 mA·cm −2 and maintains 0.713 V over 72 h at 50 mA·cm −2 , coupled with 40% enhancement in mechanical strength (33.31 MPa) and reduced swelling ratio (61.52%). These improvements arise from the uniformly dispersed LDH, which strengthens the polymer matrix while serving as built-in catalysts and ion-conductive pathways. The synergistic surface hydroxyl catalysis and interfacial electric field—described by “pore-field coupling” model—collectively lower the water dissociation energy barrier from 0.97 eV to 0.56 eV. The work demonstrates a sustainable and mechanically robust BPM platform with great potential in advanced water electrolysis and resource recovery, providing a scalable and generalizable strategy for incorporating functional nanomaterials into polymer matrices.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Jingjing Liu,Yan Zhang,Hongwei Yu,Weijia Li,Longfei Li,Yizhou Chen,Shikun Liu,Lixin Qiao,Jiale Kuang,Zetao Chen,Shuang Li,Qingjun Liu
Astringency, as a complex oral sensation, poses challenges for in-vitro detection and quantification due to the intricacy of its perception mechanism and the complexity of the astringent substances involved. To address this challenge, we developed a chitosan hydrogel-based sensor inspired by the human tongue. Mucins were embedded within the sensor to detect astringent polyphenols. When in contact with astringent phenolic compounds, the resulting precipitate aggregates entangle or block the pores, restricting ion conductivity within the sensor. Astringency detection is achieved using cyclic voltammetry. The tongue-inspired sensor can detect a wide range of tannic acid (1E −4 wt% - 5wt%), including the human sensory threshold for astringency, and construct a standard astringency quantification curve from the sensing data. It was demonstrated to revert the actual astringency sensing process by overall astringency detection and synergistic effect, simulating the in-vitro function of the tongue. In addition, the sensor provides insights for evaluating the optimal drinking time of open red wines based on astringency, offering a novel approach for wine astringency evaluation, demonstrating its potential for a variety of applications in the food and beverage industry.
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DIAMOND AND RELATED MATERIALS
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2026
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IF 5.2
MengDie Qin,Qin Fang,Kejun Tan
Biomass-derived white-light-emitting carbon dots (W-CDs) show significant promise for eco-friendly optoelectronic applications. Herein, W-CDs were synthesized via a one-step solvothermal method using renewable Lygodium japonicum as the carbon source and o -phenylenediamine as the nitrogen dopant, a sustainable and low-cost approach aligning with green chemistry principles. Under 380 nm ultraviolet excitation, the aqueous W-CDs solution emitted bright white light, with Commission International de l'Eclairage (CIE) coordinates of (0.29, 0.34) and a relative quantum yield of 3.09%. Notably, four distinct fluorescent components were successfully isolated by thin-layer chromatography (TLC) from this single biomass system: indigo blue (I-CDs, λ em = 410 nm), blue (B-CDs, λ em = 460 nm), green (G-CDs, λ em = 515 nm), and red (R-CDs, λ em = 670 nm). Comprehensive characterization (XPS, FT-IR, TEM, etc.) confirmed that the multicolor photoluminescence primarily originates from carbon core states, where increased sp 2 -conjugated domains and graphitic nitrogen content induce emission redshift. The separated multicolor CDs exhibit excellent photostability and tunable emission, while W-CDs enabled the fabrication of white light-emitting diodes (W-LEDs) with a correlated color temperature (CCT) of 7338 K. This study offers novel insights into the multifunctional utilization of biomass-derived carbon dots, highlighting their promising applications in solid-state lighting and information security.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Haiyue Yu,Zimin Yao,Guoliang Zheng,Yan Zhao,Dantong Zhu,Fanxu Bu
The Zn 2+ level in gastric juice serves as a powerful reference for the distinction of benign/malignant lesions. However, its accurate detection remains challenging due to the complex and highly acidic samples. Herein, a ratiometric fluorescence probe was developed based on quinoline-functionalized carbonized polymer dots (CPDs) for Zn 2+ accurate detection. The probe has two emission bands at 410 nm and 490 nm. The quinoline groups on the CPDs can form coordination bonds with Zn 2+ , enabling specific recognition of zinc ions. Zn 2+ addition can lead to fluorescence quenching of quinoline component of quinoline/CPD probes in simulated gastric fluid samples, while the emission of the CPDs remains almost unchanged. This ratiometric response between emission intensity at 410 nm and 490 nm enables accurate quantitative detection of Zn 2+ . The probe exhibited a detection sensitivity of 4.56 nM for Zn 2+ and demonstrated outstanding selectivity against other metal ions, attributed to its self-calibration capability. This work offers a novel strategy for designing ion sensing platforms and holds great potential for aiding the diagnosis of gastrointestinal diseases.
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INORGANIC CHEMISTRY COMMUNICATIONS
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2026
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IF 5.9
Xiaojun Su,Congming Tang,Xinli Li
The direct dehydrogenation of lactic acid (LA) to pyruvic acid (PyA) presents a sustainable and atom-economical route for biomass valorization, yet it demands high-performance catalysts to achieve satisfactory activity and selectivity. While bimetallic catalysts often show enhanced performance, a deep understanding of the interfacial synergy remains a challenge. Herein, we report a series of CuCo bimetallic oxide catalysts that exhibit remarkable performance in the direct dehydrogenation of LA to PyA, significantly outperforming their monometallic counterparts. A combination of detailed catalyst characterization and kinetic analyses unravels the critical role of the CuCo oxide interface. It is demonstrated that the Co sites at the interface are primarily responsible for the activation and cleavage of the α-C-H and α-O-H bond in lactate, while the adjacent Cu species facilitate the stabilization of the reaction intermediate and the recombination and desorption of hydrogen. This synergistic cooperation at the interface not only promotes the reaction rate but also effectively suppresses undesired side reactions, such as decarbonylation and dehydration, thereby ensuring high selectivity to PyA. The optimized catalyst with a Cu/Co molar ratio of 3:2 demonstrated enhanced performance, delivering 73.4% LA conversion and 78.1% PyA selectivity at 300 °C, which surpasses the results obtained over the CuO 1-x /SiO₂-H400 benchmark under identical conditions. This work provides fundamental insights into the bifunctional mechanism of bimetallic oxides in direct dehydrogenation reactions, offering a strategic guideline for the rational design of efficient and selective catalytic systems for sustainable chemistry.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 10.6
Qian Yin,Wei Dai,Chunxia Liu,Kai Sun,Guoning Zhou,Youbin Si
Estrogenic contamination in vegetable foods, along with its associated safety implications, has become a growing global concern. Trametes versicolor laccase, a robust multicopper oxidase, efficiently catalyzed precipitation polymerization, promoting the rhizoremediation of four estrogenic chemicals (ECs) in water-lettuce. Relative to the laccase-deficient control, fungal laccase-driven polymerization significantly accelerated the dissipation of estrone (E1), 17 β- estradiol (E2), 17 α -ethinylestradiol (EE2), and bisphenol A (BPA) in the rhizosphere solution over 36 h. This treatment increased dissipation efficiencies from 32.18 to 61.36 % to 91.07–100.00 % and elevated dissipation rate constants by 7.26–17.31 fold. Phenoxyl radicals acted as the key intermediates in the enzymatic polymerization, resulting in the formation of high molecular mass (MM), hydrophobic precipitates. The entire process is environmentally friendly, highly efficient, and non-hazardous, fully aligned with the objectives of green and low-carbon development. Especially, the large MM and strong hydrophobicity of the formed precipitates were difficult to be taken by lettuce roots and transported to aerial tissues, significantly reducing EC accumulation in edible parts of lettuce. In the laccase-deficient control, the peak concentrations of E1, E2, EE2, and BPA in lettuce roots were 80.04, 156.67, 237.60, and 123.67 μmol·kg −1 , respectively, with corresponding root uptake rate constants ( k 2 ) ranging from 0.05 to 0.22 h −1 . In contrast, fungal laccase-driven precipitation polymerization reduced root concentrations of these ECs by 18.65–74.04 %, modulated k 2 values to 0.02–0.43 h −1 , and hindered their root-to-shoot translocation. This work underscores the potential of fungal enzyme in efficiently driving the supramolecular polymerization and subsequent sequestration of ECs into non-toxic precipitates within the rhizosphere, thus blocking their bioavailability to vegetable crops and minimizing associated dietary risks.
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CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Mei Dong,Huiliang Zhou,Qiguang Cao,Song Li
The construction of well-defined MOF-on-MOF heterostructures is significantly challenged by lattice mismatch between dissimilar frameworks. Here, we report a precisely controlled core–shell MIL-101(Fe)@CoZn-ZIF composite with a uniform “one-to-one” encapsulation structure, overcoming the intrinsic incompatibility between octahedral MIL-101(Fe) cores and tetrahedral Zeolitic Imidazolate Framework (ZIF) shells. This achievement is realized through two synergistic strategies: nucleation kinetics modulation and surfactant-mediated interfacial engineering. Systematic optimization of key parameters, including the Co 2+ Zn 2+ to Fe 3+ molar ratio (120:1), precursor concentration (150 mM), and ligand to metal ratio, enabled dimensional matching and uniform coating. Moreover, surfactants (Cetyltrimethylammonium bromide and Polyvinylpyrrolidone) effectively reduced the heterogeneous nucleation barrier, promoting oriented ZIF deposition onto MIL-101(Fe). Comprehensive characterization (SEM, TEM, XRD, FTIR, TGA, XPS and BET) confirms the well-defined hybrid architecture. When the PVP-mediated composite material was applied in sulfate radical-based advanced oxidation processes for degrading methylene blue and p-nitrophenol, it demonstrated enhanced performance and stability compared to the pristine CoZn-ZIF. This work establishes a generalizable approach for integrating topologically mismatched MOFs, advancing the design of multifunctional materials for catalysis and related fields.
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JOURNAL OF MOLECULAR STRUCTURE
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2026
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IF 4.9
Yupei Chai,Lidan Cao,Yingxing Zhang,Junhong Wang,Duo Zhang,Cunfang Liu
A smart anti-corrosion and self-healing coating BTA@MSNs/g-C 3 N 4 @PDA was prepared base on mesoporous silica nanoparticles (MSNs) and graphite-phase carbon nitride (g-C 3 N 4 ) composites as nano-containers and loaded the corrosion inhibitor benzotriazole (BTA), as well as wrapped polydopamine (PDA). The structure and properties of the composites were characterized by SEM, TEM, EDS, FT-IR, XPS, XRD and N 2 physical adsorption. The release behaviors of BTA were tested by UV–Vis spectroscopy. Then these prepared materials were mixed to epoxy resin E-51 (EP) and cured to obtaining three protective coatings of MSNs/g-C 3 N 4 -EP, BTA@MSNs/g-C 3 N 4 -EP, and BTA@MSNs/g-C 3 N 4 @PDA-EP. These coatings were used as working electrodes to investigate their anti-corrosion and self-healing properties via electrochemical impedance spectroscopy (EIS), salt spray test, SEM and EDS. Test results indicate that the smart coatings presented better corrosion-resistant and self-healing performance. After being soaked in 3.5 % NaCl solution for 30 days, the |Z| 0.01Hz value of the coating BTA@MSNs/g-C 3 N 4 @PDA-EP could still reached to 10 6 , two orders of magnitude higher than that of the coating MSNs/g-C 3 N 4 -EP. Furthermore, the self-healing mechanism of these coatings was also better explored. In summary, this study will provide feasible paths and guidance for the preparation of intelligent anticorrosive self-healing new materials.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Jian Cui,Qian Zheng,Yifeng Zeng,Yuchun Liu,Chunxia Wang,Xingdong Wang,Guoyong Huang
Hydrogen spillover provides a powerful route to overcome hydrogen binding ability and sluggish water dissociation kinetics in alkaline hydrogen evolution reaction (HER). Here, we present a catalyst with Pt nanoparticles supported on a nonmetallic support (C 3 N 4 ), which achieves efficient hydrogen evolution kinetics and exceptional stability through the hydrogen spillover effect. Density functional theory (DFT) calculations reveals that strong Pt N coordination induces interfacial electron transfer from Pt to C 3 N 4 , establishing a vertical interfacial electric field that drives hydrogen spillover. As a result, Pt/C 3 N 4 –500 delivers industrial-level current densities of 500 and 1000 mA cm −2 at ultralow overpotentials of 89.8 ± 1.5 and 137.7 ± 2.1 mV, respectively, in a three-electrode system. It also maintains stable operation at 500 mA cm −2 for 300 h with a minimal potential variation of just 42.2 mV. In situ electrochemical impedance spectroscopy, in situ Raman spectroscopy, and DFT calculations reveal that the C 3 N 4 support optimizes the kinetics of H 2 desorption (0.8 × 10 −4 s), induces a hydrogen spillover effect, and facilitates the transfer of H* intermediates to the C 3 N 4 (0.37 eV) surface for desorption via low Δ G H⁎ (−0.04 eV) at the interfacial Pt sites. Anion exchange membrane water electrolyzers (AEMWE) using Pt/C 3 N 4 –500 as the cathode requires only 1.73 ± 0.02 V to achieve a current density of 1 A cm −2 and operates stably for over 150 h at 1 A cm −2 .
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
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IF 4.8
Jiansheng Chen,Jiaojiao Sun,Zhiqiang Zhang,Yubing Tian,Xianli Tian,Ce Wang,Xiaodong Wu,Peng Wang,Jing Gao
Blood species identification is crucial for forensic investigations. Surface-enhanced Raman scattering (SERS) offers promising advantages including rapid detection, non-destructive analysis, and high sensitivity, but faces challenges from direct metal-biomolecule interactions that can cause spectral interference and sample degradation. Here, we present a novel approach using graphene/Ag/Styrene Ethylene Butylene Styrene (SEBS) flexible SERS substrates for rapid and non-destructive blood species determination. The innovative “sandwich” structure features single-layer graphene (0.34 nm) positioned between silver nanoparticles and blood samples, effectively preventing direct metal-blood contact while maintaining the superior SERS enhancement. The flexible substrate demonstrates good performance including high detection sensitivity (the detection sensitivity of 4-Mercaptobenzoic Acid (4-MBA) is 10 −12 M), excellent storage stability (>30 days), and remarkable mechanical durability (>100 folding cycles). We collected 682 SERS spectra from five animal species and employed a convolutional neural network algorithm for classification, achieving the classification performance with 98.54% accuracy, 98.29% precision, and 98.38% recall. The flexible substrate enables rapid analysis and maintains the spectral integrity of archived samples for up to 31 days. This flexible graphene /Ag/SEBS platform has reliable capabilities and offers accurate new means for on-site forensic applications: non-destructive analysis, field portability, rapid results, and high accuracy.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Zhengyu Zhang,Jun Li,Zegeng Chen,Xinqi Wang,Yang Hong,Xilong Li,Dongpeng Zhao,Yang Li,Zhongxiang Zhou
Polymetallic sulfides have emerged promising in modulating dielectric response, while their phase complexity obscures the contribution of specific elements on them, hindering dielectric optimization. Herein, we report the entropy-driven engineering that controllably synthesizes the consistent MS- and M 9 S 8 -type dual-phase (M = Fe, Co, Ni, Cr, Cu, Al) structures in medium/high-entropy sulfides, which pinpoint the role of specific metals. Entropy-driven (Cu/Al) doping optimizes metallic electron transport via filling the valley regions near the Fermi level in the density of states (DOS) to boost electron mobility, and promotes S deficiency degree, culminating in a 450% conduction loss enhancement. Concurrently, it promotes charge separation in lattice disorder areas and MS/M 9 S 8 phase interfaces charge transfer capacities, boosting the disorder-interface polarization loss by 7.86 times. Therefore, the senary high-entropy sulfide (6-HES) achieves an improved effective absorption bandwidth (EAB) of 4.96 GHz. Particularly, it demonstrates practical potential through a genetic-algorithm-optimized metamaterial with an ultra-wide EAB of 11.06 GHz. This work deciphers the specific roles of entropy-driven (Cu/Al) doping in modulating electron structure, and establishes a general paradigm for designing programming dielectric properties in high-entropy systems.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Jia Jia,Bo Hu,Lingxi Zhao,Yixin Wang,Yuhan Zhang,Qingyu Li,Mengya Xiao,Hongjun Dong,Chunmei Li
Conventional single-atom catalyst (SAC) design anchors metal atoms within a host matrix to create well-defined metal active sites for enhanced catalytic efficiency. Herein, we engineer a novel SAC featuring Au single atoms (AuSAs), which is synergistically enhanced by the coexistence of Au nanoparticles (AuNPs), transcending the conventional design strategy. The AuSAs are stabilized within the carbon nitride (PCN) skeleton via the formation of an unconventional low-coordination AuN 2 configuration, which is achieved through the coordination of each Au atom with one bridged nitrogen atom and one nitrogen from bipyridine motif. This unique configuration activates the once-inert bridged nitrogen while simultaneously modulates the electronic band structure of PCN. Consequently, the optimal AuSAs-PCN/AuNPs catalyst achieves an average CO production rate 3.59 times higher than that of the pristine PCN in aqueous solution. In triethanolamine solution, the CO and CH 4 production rates reach 1.55 and 1.64 times those of PCN, respectively. This work demonstrates a breakthrough that moves beyond traditional SAC design by creating a low metal-coordination configuration to activate adjacent nonmetallic sites, thereby providing a strategic blueprint for a broad class of high-performance catalysts.
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