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 Agriculture and Food Research
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2026
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IF 7.2
Yang Zhang,Zhengzheng Ying,Li Sun,Zheping Yu,Yuyong Wu,Haiying Ren,Xingjiang Qi,Shuwen Zhang,Senmiao Liang
Tree age influences plant secondary metabolism, but its effect on antioxidant components in Chinese bayberry leaves remains unclear. Combining chemical assays and widely targeted metabolomics, we analyzed bayberry leaves of different ages, including young (<100 years) and mature (∼300, ∼400, and ∼500 years old) groups. We found that the contents of polyphenols and flavonoids significantly increased with tree age, which in turn enhanced their antioxidant activity. The 500-year-old leaves exhibited the highest activity. Metabolomic analysis identified a total of 3152 metabolites, with terpenoids, flavonoids, and phenolic acids being the predominant classes, collectively representing 50.44% of the total identified metabolites (20.43%, 20.11%, and 9.90%, respectively). Subsequent multivariate analysis revealed that the “Subclass 1” metabolites-comprising phenolic acids, flavonoids, and terpenoids-were positively correlated with antioxidant activity. Furthermore, two compounds, picfeltarraenin X and isothankunic acid, were identified in Chinese bayberry leaves for the first time. These results demonstrate that tree age enhances antioxidant capacity by regulating the accumulation of key secondary metabolites, predominantly terpenoids, flavonoids, and phenolic acids, thereby providing a scientific basis for the high-value utilization of bayberry leaves.
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Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 2
·121850
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IF 7.5
Yong-mei Zhang,Ping-ping Fan,Ling-zhi Zhang,Wei Yu,Song Xia,Fa-li Liu,Xue-de Li
Herbicide is one of the most widely used pesticides in China, yet its spatiotemporal dynamics and associated risks in Chaohu Lake remain poorly understood. Here, we investigated the occurrence, partitioning behavior, and multi-tier risks of three amide herbicides (AHs) and two organophosphorus herbicides (OPHs) in Chaohu Lake, China, using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). All target herbicides were detected in surface water and sediments, showing significantly higher concentrations in summer than in winter and a pronounced spatial gradient, with higher levels in the western than in the eastern lake regions. The majority of the compound was butachlor (BUT), which was 14.950 µg/L in water and 21.909 µg/kg in sediment. The lowest concentration was gluconate-ammonium (GIU), which was 0.050 µg/L in water and 0.570 µg/g in sediment. Sediment-water partitioning coefficients ( K d ) correlated positively with octanol-water distribution coefficient (log k ow ) and total organic carbon (TOC), indicating strong sediment adsorption. Risk assessments revealed that AHs posed high acute ecological risks to aquatic organisms, whereas OPHs showed negligible effects. Human health risk models indicated no significant non-carcinogenic risks (NCR) from acetochlor (ACE), BUT, glyphosate (GLY), or GIU at current levels. This study reported the occurrence of HAs and OPHs in Chaohu Lake for the first time, which filled the data gap of typical herbicides in the ecosystem.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Jinming Fu,Jun Yao,Chuiyun Tang,Tatjana Šolević Knudsen,Jian-li Liu
p-Chloroaniline (PCA), a persistent and toxic pollutant in mine tailings, necessitates cost-effective remediation strategies. This study evaluates the degradation of PCA by Fe 2+ /Fe 3+ -catalyzed sodium persulfate (SPS) and sodium percarbonate (SPC) oxidation enhanced by UVA-B irradiation. Among the systems tested, the UVA-B/Fe 2+ /SPS system achieved 96.2% PCA removal within 180 min, outperforming other configurations. Radical scavenging experiments and density functional theory (DFT) calculations suggested that SO 4 • − and •OH radicals were the primary reactive species in SPS systems, while •OH and O 2 ●- were identified as the major reactive species in SPC systems. DFT further revealed vulnerable sites on PCA for radical attack, supporting proposed degradation pathways. ECOSAR toxicity assessment revealed that although PCA acute toxicity decreased, certain intermediates (e.g., azo-compounds) retained high chronic toxicity, highlighting the importance of process optimization. This study provides novel insights into the degradation mechanisms of PCA, establishing a mechanistic foundation for designing solar-enhanced, iron-coupled advanced oxidation processes for industrial-scale remediation of halogenated aromatics in mining environments.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Tong Luo,Chuanwei Lu,Chunpeng Wang,Tongqi Yuan,Fuxiang Chu,Jifu Wang
Eutectogels hold considerable promise soft electrodes for high-performance flexible triboelectric nanogenerator (TENG) due to their tunable mechanical properties and environmental stability. However, conventional eutectogels with single linear polymer chains often exhibit poor mechanical strength as well as undesirable migration of components (e.g., initiators), which compromise device stability and limit their environmental adaptability in high-performance energy harvesting. Here, lignin was molecularly engineered into branched lignin nanospheres (BLNS) functionalized with polymerizable acrylate groups. In a deep eutectic solvent system, BLNS simultaneously enabled rapid self-initiated UV polymerization (97.3% C C conversion) and constructed a robust, non-migrating crosslinked network, yielding triboelectric supramolecular eutectogels (SEG). Specifically, benefiting from branched backbone and nanoreinforcing effect of the BLNS, the resulting SEG achieved exceptional mechanical robustness (tensile strength of 1.76 MPa, toughness of 5.10 MJ/m 3 ) and strong adhesion (1.21 MPa). The SEG-based sensor exhibited a high ionic conductivity of 4.50 mS m −1 and a gauge factor of 3.3, while maintaining stable sensing performance over a wide temperature range (−30 to 80 °C) and under varying humidity conditions (30–90% RH), demonstrating excellent adaptability to harsh environmental conditions. As a proof-of-concept, a TENG was constructed using the SEG as the flexible electrode, with open-circuit voltage remaining stable over 6000 contact–separation cycles, underscoring the robustness and operational stability essential for reliable self-powered soft electronic systems. This work establishes a versatile strategy for designing multifunctional lignin-based materials for next-generation self-powered electronics.
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Chemical Science
·
2026
·
IF 8.1
Lijun Liao,Guangquan Zhao,Ruiwen Shu,Xuepeng Wang,Jinxin Zhang,Ruting Yuan
Photocatalytic reduction of nitrate (NO3-) to ammonia (NH3) represents a sustainable route for wastewater treatment and chemical production. Metal-organic frameworks (MOFs) like MIL-125 are promising catalysts, yet their performance often decays during reaction. This study reveals that the aggregation state of Ti3+ sites in MIL-125 is a critical factor governing its photocatalytic efficiency. We demonstrate that the as-synthesized MIL-125, featuring isolated Ti3+ sites, achieves a high NH3 production rate of 738.32 μmol g-1 h-1 under full-spectrum light without sacrificial agents. Comprehensive characterization and theoretical calculations indicate that these isolated Ti3+ sites elevate the material’s conduction band and enhance NO3- adsorption, thereby lowering the energy barrier for the rate-determining step. However, prolonged photoreaction leads to linker deficiency, resulting in agglomeration of Ti3+ sites. This structural evolution causes a negative shift in the conduction band potential, impedes charge separation, and increases the reaction barrier, leading to a noticeable loss in activity over cycles. This work underscores the pivotal role of maintaining isolated metal sites for designing stable and efficient MOF-based photocatalysts for nitrogen cycling.
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Baolu Shi,Baosheng Xu,Xinqiao Wang,Zhiliang Zhou,Yan Zhang,Yuxuan Tian
SiO 2 -based ceramic aerogels have been extensively employed in thermal protection systems due to their lightweight and excellent thermal stability characteristics. However, their inherent brittleness and relatively high infrared transparency severely restrict their applications under extreme service conditions. In this study, the synergistic integration of anti-infrared property and 3D deformability was first achieved, and an anti-infrared ceramic aerogel composite metastructure (anti-infrared CAM) with an origami structure was designed and fabricated. To address the infrared transparency issue of SiO₂, potassium titanate whiskers (PTW) with high infrared reflective properties were introduced into the SiO₂ aerogel, while a TiO₂ coating was deposited on the fiber surfaces to construct a dual infrared barrier system. The results showed that the prepared anti-infrared CAM exhibited a high uniaxial tensile strain exceeding 80 % and excellent cyclic tensile fatigue resistance. Notably, the introduction of PTW enhanced the anti-infrared capability, making anti-infrared CAM possessed highly efficient high-temperature thermal insulation performance. Although the TiO 2 -coated fibers as the structural framework reduced the tensile strain, they improved the compressive strength. Therefore, the anti-infrared CAM broke through the limitations of brittleness and high infrared transparency in traditional SiO₂-based ceramic aerogels, significantly expanding the application in harsh and complex extreme environments.
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JOURNAL OF CATALYSIS
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2026
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IF 6
Yuting Luo,Qingyi Lv,Huai Liu,Rui Zhang,Wenlong Jia,Lincai Peng
The structural reconstruction of Cu-based catalysts during the hydrodeoxygenation (HDO) process typically leads to the loss of active Cu + species and catalyst sintering, resulting in catalyst deactivation. Herein, we found that Pr-doped CuO x catalyst undergoes in-situ reconstruction to generate stable Cu + species during the HDO of vanillin (VAN) to 2-methoxy-4-methylphenol (MMP). This affords a high MMP yield of 85.5% using methanol as both the solvent and hydrogen donor, which is significant higher than that of pristine CuO x and previously reported catalysts for the HDO of VAN in MeOH. Electronic interactions between Pr dopants and the CuO x matrix strengthen the Cu–O bonds and stabilize Cu + species, thereby increasing the density of acidic sites and oxygen vacancies in the catalyst. This not only promotes MeOH decomposition for H 2 generation, but also facilitates VAN adsorption and activation, thereby boosting HDO activity. This work offers new insights for the in-situ construction of highly active and durable Cu + sites in Cu-based catalysts.
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APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Xi Zhu,Zhikun Li,Bolong Liang,Shijie Xing,Hongbin He,Xiliang Li,Shu-Xuan Liang
The continuous contamination of ciprofloxacin (CIP) pharmaceutical residues poses a potential risk to the ecological environment and human health. Using semiconductor materials with optimized heterojunctions for photodegradation is an effective way for the CIP removal. In this study, Fe-ZnO/CdS Z-type heterojunction was synthesized, and used for the photodegradation of organic pollutants. The Fe-doping brought abundant surface oxygen vacancies to ZnO, which could effectively promote interfacial electron transfer. In addition, the valence transition of Fe (II)/Fe (III) could effectively participate in the redox cycle and improve the carrier transfer efficiency. The construction of Z-type heterojunction facilitated the separation of photogenerated carriers, and the photogenerated electrons in the conduction band of CdS reduced oxygen to produce superoxide radicals as the main active radicals. A series of photoelectric characterizations had proved that the introduction of CdS could effectively improve the visible light utilization rate and photogenerated carrier separation efficiency. The Fe-ZnO/CdS system achieved 90.0% degradation efficiency of CIP within 120 min under visible light. Impressively, Fe-ZnO/CdS heterojunction showed practical degradation capability in complex aqueous environments and excellent reusability. This study provided an effective strategy for the design of metal oxide-based photocatalysts and offered a new idea for the removal of drug residual contaminants.
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Nature Communications
·
2026
·
IF 18.1
Hu Zhong-Ting,He Gan,Tao Xiaohuan,Tian Jinshu,Tan Mingwu,Ouyang Ni,Li Jun-Long,Hu Mian,Wang Jie-Xin,Zhu Yihan,Cao Dapeng,Pan Zhiyan,Wang Yong,Li Xiaonian
The catalytic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid is a key step in the production of bio-based plastics but remains limited by sluggish multi-electron transfer kinetics across multiple reaction intermediates. In this study, we address this long-standing challenge by introducing a Mn-O-Co electron bridge within spinel CoMn 2 O 4 to mediate and accelerate electron transfer. Through precise valence state regulation, we engineer a heterogeneous electron bridge dominated by Mn 4+ -O 2- -Co 3+ linkages, enabling more efficient electron flow. Experimental characterization and theoretical calculations reveal that the incorporation of Mn 4+ significantly enhances electron delocalization across the bridge. The empty e g orbitals of Mn 4+ ( t 2g 3 e g 0 ) serve as efficient electron acceptors, creating an energy-level gradient with Co 3+ ( t 2g 4 e g 2 ) that favors directional electron transfer. Simultaneously, Mn 4+ strengthens metal-oxygen covalency, further improving electron mobility. This engineered electron bridge structure enables highly efficient cooperation across the full six-electron transfer pathway in 5-hydroxymethylfurfural oxidation, driven by a dynamic electron compensation mechanism. As a result, an 2,5-furandicarboxylic acid yield of 98.1% is achieved. This work offers a valuable theoretical foundation for understanding cooperative electron transfer in heterogeneous catalysis and provides a rational strategy for designing efficient electron bridge structures.
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高影响因子
ACS Photonics
·
2026
·
IF 6
Jun-Liang Li,Ke-Lei Zu,Chang-Sheng Shi,Bin Xu,Jian Xu,Yin-Fen Ma,Ji-Xiong Zhao,You-Mei Wang,Hai-Liang Long,Qi Zhan,Feng Qiu,Mei Leng,Yong-biao Zhao,Zheng-Hong Lu
Infrared (IR)-to-visible upconversion devices integrate IR photodetection and visible light emission into a single device. Such devices selectively emit visible photons from regions irradiated by IR photons, enabling simplified and low-cost pixel-less imaging. Recently, the integration of colloidal quantum dots (CQDs)-based IR photodetection units with organic semiconductor–based visible emitters has attracted significant attention. These quantum dot organic upconversion devices (QOUDs) benefit from solution processability and tunable infrared absorption. However, their performance has so far been limited by inefficient coupling between the absorption and emission units as well as the relatively low efficiency of the photodetection layer. In this work, a high-performance QOUD is demonstrated by incorporating an improved interconnection layer (ICL) and introducing a photomultiplication (PM) mechanism. A photon-to-photon efficiency of 23% is achieved, which is 143 times higher than that of a gain-free device. The low-barrier interconnection is achieved by using an ultrathin MoO3 ICL, which provides favorable energy level alignment. The turn-on voltage of the QOUD under infrared illumination was greatly reduced to 1.9 V. In addition, the PM effect originates from the absorption layer, where defect states trap photogenerated carriers and induce image-charge-assisted carrier injection from the electrode. The QOUD is further demonstrated for pixel-less IR imaging, combining low turn-on voltage with high PM and showing strong potential for practical infrared imaging applications.
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CHEMICAL PHYSICS LETTERS
·
2026
·
IF 2.9
Guangling Zuo,Hongyong Ye,Xingda Zhang,Rong Wang,Jia Du,Xin Ding
Photocatalytic hydrogen evolution represents a promising strategy for sustainable energy conversion, yet its efficiency is often limited by the rapid recombination of photogenerated carriers and insufficient redox capabilities. In this work, an S-scheme ZnMn 2 O 4 /CdO (ZMO/CdO) heterojunction was successfully fabricated via a simple solvothermal method to address these challenges. Based on band structure analysis, the composite satisfies the thermodynamic prerequisites for photocatalytic hydrogen evolution. The establishment of an S-scheme charge transfer pathway, driven by the combined effect of an internal electric field (IEF) and band bending, enables photogenerated electrons (e − ) to accumulate in the conduction band (CB) of ZnMn 2 O 4 (ZMO), while holes (h + ) are retained in the valence band (VB) of CdO. This mechanism not only promotes the spatial separation of photogenerated electron–hole pairs (PEHP) but also preserves the strongest redox ability of the system. Under optimized conditions (pH = 8 with triethanolamine (TEOA)), the ZMO/CdO composite achieves an outstanding hydrogen evolution rate of 2237 μmol∙g −1 ∙h −1 , which is approximately 4.38 and 2.84 times higher than that of pure CdO and ZMO, respectively. Moreover, the photocatalyst maintains high hydrogen production activity and structural stability in diverse real water samples, including municipal water, natural surface water, and even wastewater, highlighting its strong potential for practical solar-driven hydrogen production in complex environments.
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