Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 2
·121592
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IF 7.5
Yu Chang,Yuda Chen,Dehao Liu,Weiying Li,Qing Lu,Dawei Zhang
Perfluorooctanoic acid (PFOA) and microplastics (MPs) were widespread new contaminants in aquatic environments. In co-contamination scenarios, MPs could act as environmental carriers for PFOA, significantly increasing the complexity of its aquatic transport dynamics. Meanwhile, MPs aging and their interfacial interactions might induce novel combined toxicity. However, systematic studies on the differential impacts of various aging methods on interactions between different MPs and PFOA were lacking. This study examined four common aquatic MPs (polyamide (PA), polyethylene (PE), polyethylene terephthalate (PET), Polypropylene (PP)) to investigate the effects of different aging methods (alkaline aging and peroxymonosulfate (PMS)) on the properties of MPs and their PFOA adsorption performance, and revealed the interaction mechanisms with PFOA via extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory with density functional theory (DFT) calculations analyses. Results showed both aging methods caused surface wrinkling in all MPs, damaging characteristic functional groups through hydrolysis (alkaline aging) and oxidation (PMS aging). Notably, the N-containing functional groups on PA were the main functional groups for PFOA adsorption, their damage led to a significant decrease in the adsorption capacity of aged PA, with alkaline aging having a more prominent impact than PMS aging. Furthermore, all MPs exhibited the characteristic of "physicochemical synergistic multi-layer adsorption". Specifically, PA (-C(O)NH-) and PET (-COO-) dominated chemical adsorption (γ AB -driven) due to polar groups’ strong electrostatic potential, with equilibrium capacities of 8.78 and 1.32 mg·g⁻¹ . In contrast, non-polar PE and PP mainly underwent physical adsorption (γ LW -driven), showing low capacities (0.18 and 0.54 mg·g⁻¹) and little aging impact. The findings aimed to elucidate the differential environmental impacts of various aged MPs as PFOA carriers and provide a scientific basis for assessing the combined pollution risks of these two pollutants in aquatic environments.
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ENVIRONMENTAL RESEARCH
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2026
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IF 7.7
Teng Bao,Cheng long Li,Wei Wei,Mekdimu Mezemir Damtie,Zhijie Chen,Haijiao Xie,Bing-Jie Ni
Antibiotics (e.g., ofloxacin) pollution is an emerging environmental concern due to its persistence and potential health risks. Advanced oxidation processes (AOPs) offer promising solutions, yet their practical application is often limited by catalyst cost and stability. Here, we report the use of natural vivianite—a low-cost iron phosphate mineral—as an efficient peroxymonosulphate (PMS) activator for ofloxacin degradation. Under the optimised conditions, 97 % of ofloxacin was effectively degraded within 60 min. The ofloxacin degradation ratio could still reach 76 % after three consecutive cycles. Mechanistic investigations revealed Mn 2+ and Co 2+ isomorphic substitutions within the vivianite lattice, which induced electron cloud redistribution and promoted the formation of metal–oxygen–metal and metal–oxygen bonds. These structural changes enhanced charge transfer and facilitated PMS adsorption and activation via both surface-bound sites and leached phosphate species. Electron paramagnetic resonance spectroscopy confirmed that degradation proceeded through synergistic radical (·OH, SO 4 · - , O 2 · - ) and non-radical ( 1 O 2 ) pathways. Importantly, the degradation products exhibited significantly lower toxicity than ofloxacin itself, underscoring the environmental relevance of this process. These findings highlight the potential of natural vivianite as a cost-effective and sustainable PMS activator for antibiotic removal in water treatment applications.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
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IF 10.6
Yudong Xie,Xiaowei Wang,Jinfeng Men,Min Zhu,Chengqiang Liang,Ping Bao,Biao Wang,Zeyu Guo
Efficient removal of Sr 2 + from radioactive wastewater is essential for the safe and sustainable development of nuclear power. Herein, three ferrous oxalatophosphates—(NH 4 ) 2 Fe 3 (HPO 4 ) 2 (C 2 O 4 ) 2 (NFPO), Na 2 [Fe(HPO 4 )C 2 O 4 ] (SFPO), and K 3 [Fe 4 (HPO 4 ) 2 (PO 4 )(C 2 O 4 ) 2 ]∙H 2 O (KFPO)—were synthesized via a one-step hydrothermal route and systematically evaluated for Sr 2+ capture. NFPO exhibited the best overall performance, featuring broad pH tolerance, thermal stability, and reusability. Notably, in the presence of Ca 2+ (optimal background concentration: 50 mg·L –1 ), Sr 2+ uptake was markedly enhanced, reaching equilibrium within 50 min and achieving an experimentally saturated capacity of 308.95 mg·g –1 (313 K). To improve handling and applicability, NFPO was immobilized into polyacrylonitrile microspheres (NFPO/PAN), which maintained effective dynamic adsorption in fixed-bed tests. Characterization results demonstrate that the crystalline framework remains largely preserved during adsorption, with Fe remaining in the divalent state and an ion-exchange trend involving NH 4 + . Density functional theory (DFT) calculations are further used to provide a plausible atomic-scale interpretation: Sr 2+ binding is energetically favored at oxygen-rich interfacial sites, while Ca 2+ can promote Sr 2+ capture by modulating local structure and electrostatic environment. This work highlights ferrous oxalatophosphates as promising adsorbents and provides an experimentally grounded and theoretically supported understanding for Sr 2+ remediation.
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JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
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2026
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IF 3.5
Huahong Liu,Yuxin Wu,Zhenni Lan,Liusen Fang,Yuqi Qin,Xuehui Tang,Haiyan Fu,Yun Zhang,Jinfang Nie
BACKGROUND Luohan guo ( Siraitia grosvenorii ) has attracted considerable interest because of its substantial antioxidant levels and potential advantages for human health. However, the metabolic and related bioactivity characteristics of different cultivars remain poorly understood, hindering its development and utilization. This study assessed the key active substances and their potential antioxidant mechanisms in the pulps and peels of four luohan guo cultivars. RESULTS Overall, ‘Suqiao’ pulps exhibited the strongest antioxidant effects. These are attributed primarily to the accumulation of flavonoids and their glycosides. ‘Xingning’ peel samples contained higher levels of amino acids, terpenoids, and steroids, which provide a basis for their antioxidant effects. Network pharmacology suggested that the 29 key antioxidant metabolites in luohan guo interact with 26 core targets and exhibit significant enrichment in specific pathways associated with cancer, especially breast and prostate carcinomas. The top ten core antioxidant metabolites in the network predominantly accumulated in the ‘Suqiao’ pulps and exhibited good affinity for antioxidant targets by molecular docking simulation. CONCLUSION These results revealed the impact of secondary metabolites on the antioxidant effects of four luohan guo cultivars and their potential mechanisms, and could provide theoretical support for the development and utilization of luohan guo. © 2026 Society of Chemical Industry.
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Small
·
2026
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IF 12.1
Jianyi Huang,Liping Du,Qingyun Han,Ning Ding,Yueqi Shen,Haoyu Chen,Lingling Sheng,Yuxiang Xu,Yong Wang,Li Wan,Yuan Fang,Yihui He,Weihua Ning
Lead-free perovskites are emerging as eco-friendly alternatives for X-ray detection, yet achieving high sensitivity, stability, and self-powered operation remains a challenge. Here, we present a 0D chiral organic-inorganic hybrid bismuth perovskite single crystal, (R/S-NEA) 4 Bi 2 Cl 10 (NEA = (2-naphthyl)ethylamine), that enables a bulk photovoltaic effect (BPVE) for efficient, self-powered X-ray detection. Its unique structure, featuring isolated [Bi 2 Cl 10 ]4 − dimers within a hydrogen-bonded chiral lattice, facilitates asymmetric charge transport, enhancing intrinsic carrier separation. The resulting detector achieves a record sensitivity of 10 200 µC·Gy −1 cm −2 at 1000 V bias and maintains self-powered operation (0 V) with a low detection limit of 510 nGy s −1 , outperforming existing bismuth-based perovskite detectors. Notably, these crystals retain structural integrity for over a year in ambient conditions, while the device exhibits stable operation for over 4000 s under continuous X-ray exposure. This work advances chiral perovskite engineering as a powerful strategy for developing next-generation lead-free X-ray detectors with high performance and long-term durability, making them attractive for portable medical imaging and radiation monitoring.
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JOURNAL OF FLUORESCENCE
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2026
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IF 3.1
Zhu Danhong,Wu Wanhui,Zhang Lejing,Liu Zixin,Zhao Huan,Zheng Zhongkai,Lin Mei
The development of fluorescent probes with high stability and selectivity for ferric ion (Fe³⁺) detection remains crucial for environmental monitoring. Herein, we report a one-pot hydrothermal synthesis of nitrogen and sulfur co-doped carbon dots grafted with polyvinylamine (CDs-PVAm) using citric acid and L-cysteine as sustainable precursors. The obtained CDs-PVAm exhibited strong blue fluorescence with a high quantum yield of 49% and an average fluorescence lifetime of 9.75 ns, attributed to the synergistic effect of N, S co-doping and PVAm passivation which effectively suppresses non-radiative recombination. The material demonstrates excellent environmental stability over a wide pH range (3–9), under thermal stress (25–45 °C), and prolonged irradiation. As a fluorescent probe, CDs-PVAm shows high selectivity toward Fe³⁺ among various metal ions, with a linear response range of 0–200 µM and a detection limit of 11.40 µM. Practical application in natural water samples achieved satisfactory recoveries (100.46–101.45%) with low relative standard deviations (0.71–1.43%), confirming its reliability for Fe³⁺ detection in complex aqueous matrices. This work presents a robust nanoplatform for environmental sensing with significant application potential.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.7
Ruoxuan Guo,Liping Song,Wencheng Yao,Yingzhong Huo,Lu Wang,Yang Liu,Yuejie Ai,Xiangke Wang
Rational design and synthesis of stable and efficient photocatalysts for selective U(VI) capture in water remains a great challenge due to the complicated water environment. Herein, considering the synergistic interaction between anthraquinone (−AQ, electron acceptor) and methoxy (–OCH 3 , electron donor), a series of ternary donor-acceptor-acceptor (D-A1-A2) covalent triazine frameworks named as OCH 3 (x)-AQ(y) (x and y represent different content ratios) were rationally designed and synthesized via molecular regulation. This work not only constructed a directional charge-transfer pathway, but also greatly improved the utilization efficiency of photogenerated electrons in OCH 3 (x)-AQ(y) framework, which was also further verified by density functional theory (DFT) calculations. Finally, OCH 3 (2)-AQ(3) could reach nearly 100% removal efficiency of U(VI) within 240 min under visible light irradiation in air. Meanwhile, OCH 3 (2)-AQ(3) showed an extremely high distribution coefficient (K d , 1.07 × 10 6 mL·g −1 ) for U(VI) under multicomponent ion competition and further performed high removal efficiencies (>98%) in real water environments, such as seawater and groundwater. Importantly, the machine learning results also demonstrated that the structural characteristics would greatly influence the catalytic performance of CTF catalysts. The component tuning of donor-acceptor groups achieved synergistic effects in stepwise charge transport and target-selective site accessibility, which offered an effective photocatalytic strategy for U(VI) extraction in complex water environment.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Lei Miao,Wei Guo,Haitao Chen,Xiaozheng Sun
Understanding the interfacial adsorption pathways of tire‑derived contaminants on hybrid porous materials is critical for advancing colloid and interface science. Here, we design a hierarchically structured metal-organic framework (MOF)‑functionalized nanocellulose (MOF@NC) aerogel using dicarboxylic cellulose nanocrystal (DCN)‑mediated interfacial bridging, forming a chemically active and spatially interconnected adsorption network. The adsorption of 6PPD‑quinone was evaluated through kinetic, isotherm, and thermodynamic analyses, revealing rapid chemisorption consistent with a pseudo‑second‑order model and monolayer adsorption on energetically uniform sites following the Langmuir model, with a maximum adsorption capacity of 20.0 ± 0.5 mg g⁻¹ . The MOF@NC aerogel retained approximately 87.2 ± 2.4 % of its initial adsorption efficiency after five adsorption‑desorption cycles, demonstrating good interfacial stability and reusability. Spectroscopic analyses (FTIR, XPS, SEM‑EDS) identify multiple interfacial interactions, including amide‑bond formation, Lewis acid-base coordination with MOF Zr-oxo clusters, π–π stacking between aromatic domains, hydrogen bonding, and dispersive interactions. Complementary density functional theory (DFT) and reduced density gradient (RDG) reveal energetically favorable adsorption configurations, and pronounced electronic redistribution at the MOF-nanocellulose heterointerface. By integrating macroscopic adsorption behavior with molecular-level interfacial analysis, this work establishes a mechanism-oriented framework for interpreting adsorption at MOF-biopolymer hybrid interfaces, thereby advancing fundamental understanding of how hybrid colloidal interfaces govern the sequestration of aniline-derived contaminants beyond prior performance-focused studies.
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CERAMICS INTERNATIONAL
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2026
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IF 5.6
Zifeng Li,Shuang Ding,Changchun Yu,Hao Yang,Xuting Sun,Hui Zhang,Qingming Chen,Yule Li
This study focuses on the improvement of magnetoresistance (MR) in a two-phase composite systems. The spin-polarization tunneling caused by the introduction of metal oxides (Fe 2 O 3 ) coating grains is a key link to enhance magnetoresistance performance. Two-phase composite ceramics La 0.67 Ca 0.33 MnO 3 @ x Fe 2 O 3 (LCMOF) (0 ≤ x ≤ 0.009) were prepared by sol-gel method, and the microstructure, electrical transport and magnetoresistance (MR) properties under the composite system were systematically studied. The XRD results indicate that the recombination of the second phase causes subtle structural distortion but still presents an orthogonal perovskite structure. The surface SEM results show that the grain boundaries of the material are clear, and the grain connections are tight. The coexistence of LCMOF and MnO phases exists in the sectional SEM images, which proves the occurrence of ion substitution. The ρ - T curve shows a drastic metal-insulator transition. The continuous recombination of Fe 2 O 3 increases the resistivity, which can be explained by the grain boundary effect and the dual-channel model. A noteworthy phenomenon was observed, when x = 0.009, the optimized MR was significantly enhanced to 72.94 %, and the sample performance was significantly improved, which was attributed to the spin-polarization tunneling effect. This study expands the application prospects of LCMOF composite phases in fields such as magnetic sensors, magnetic storage, and thermistors.
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Journal of Materials Chemistry A
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2026
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IF 9.5
Wensong Wang,Ying Tian,Xiuwen Cao,Xiang Liu,Shizhe Cao,Deheng Chen,Weizi Jiang,Mingtao Li,Weiwei Lin,Xun Sun,Shenjie Li,Yanyan Chen
The urea oxidation reaction (UOR), with its low theoretical potential, can replace the oxygen evolution reaction (OER) at the anode in water electrolysis, thereby reducing the thermodynamic barrier of electrochemical water splitting. However, in practical UOR electrocatalysts, the adsorption competition between urea and OH⁻ constitutes a kinetic bottleneck. Conventional catalysts lack dynamic regulation means, which ultimately leads to the occurrence of competitive adsorption. In this study, we constructed a CuxS/FeS/NF heterojunction electrocatalyst via hydrothermal methods, achieving highly efficient catalysis for UOR-assisted overall water splitting. The heterojunction features an open and disordered hierarchical porous structure, significantly increasing the specific surface area and active site density (with a double-layer capacitance of 8.33 mF cm -2 ). More importantly, the reversible Cu + /Cu 2+ valence cycling on the heterojunction surface dynamically modulates urea adsorption sites, addressing the issue of OH -occupying active centers and accelerating reaction kinetics (Tafel slope as low as 26.28 mV dec -1 ). In-situ Raman tests confirm that Cu 2+ forms strong coordination with -NH₂ via empty orbitals, while Cu + weakens the adsorption of OH⁻ through high electron density; the two species synergistically accelerate the reaction kinetics. Electrochemical tests reveal that in the UOR||HER system, CuxS/FeS/NF only requires a potential of 1.35 V vs. RHE to achieve a current density of 10 mA cm -2 , while for the HER, it needs merely 78 mV to reach the same current density. When applied to UOR-assisted overall water splitting in a 1 M KOH + 0.33 M urea electrolyte, the system requires only 1.440 V vs. RHE cell voltage to deliver a current density of 50 mA cm -2 and maintains stable operation for 60 hours, with a urea degradation rate of 66.4% after 20 hours. This work, through the dynamic regulation mechanism of copper valence cycling, provides a novel approach for designing UOR catalysts with both high activity and stability, holding significant application potential in low-energy hydrogen production and wastewater treatment.
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CARBON
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2026
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IF 11.6
Chunlei Chi,Guanwen Wang,Xinhou Yang,Bin Qi,Zhiyuan Li,Baoyi Mu,Zheng Liu,Tong Wei,Guojun Xu,Zhuangjun Fan
Hard carbon (HC) possesses large interlayer spacing, abundant defects, and porous structures, enabling efficient storage of large-radius K + ions. Nevertheless, its highly disordered nature renders the microstructure challenging to precisely regulate, which disrupts electronic conductivity and introduces irreversible active sites. Herein, conjugated poly(bithiophene) and phytic acid were employed as ligands to construct a lamellar precursor with reinforced interlayer support through Fe 3+ coordination and crosslinking. Upon optimized pyrolysis, the derived HC exhibits a high reversible capacity of 407 mAh g −1 , long-term cycling stability (1800 cycles at 1 A g −1 ), and excellent rate capability (200 mAh g −1 at 1 A g −1 ) in potassium-ion batteries. Thermogravimetry-mass spectrometry (TG-MS) analysis was conducted to investigate the structural evolution mechanisms of the precursor during pyrolysis. Furthermore, ex-situ characterization combined with density functional theory (DFT) calculations elucidated the intrinsic origin of the superior reversibility and activity associated with S–C and P–C doped configuration. These findings offer new insights into precursor engineering and controlled heteroatom doping for the development of high-performance HC anodes, providing both fundamental understanding and practical guidance for next-generation energy storage and conversion.
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Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 2
·121475
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IF 7.2
Ruipu Yao,Min Xiao,Xiaolong Yu,Xu Jin,Yicheng Dai,Mi Feng,Jiaxing Huang,Jianteng Sun
Atrazine, one of the widely used triazine herbicides, has been proven to endanger both aquatic ecosystems and human health. Herein, the degradation mechanisms of atrazine via ultraviolet-driven persulfate (UV/PDS) and toxicity evolution of its intermediates were specially concentrated. The UV/PDS system demonstrated the exceptional degradation efficacy of atrazine, and the kinetics reaction followed a pseudo first-order kinetic model ( k obs =0.1356 min −1 ). Radical quenching tests and EPR analysis validated that •OH, SO 4 •− , O 2 •- mediated the decomposition of atrazine. The presence of HPO 4 2− and natural organic matter exerted a conspicuous suppression on atrazine removal, whereas Cl − displayed a limited adverse effect. The density functional theory (DFT) and Orbitrap-HRMS manifested that atrazine was destructed through dealkylation, dechloro-hydroxylation and alkyl chain oxidation. Toxicity prediction of these intermediates unmasked that most of them exhibited lower acute toxicity and bioaccumulation effects compared to the pristine atrazine. Effective detoxification of atrazine was confirmed by the observed decline in MDA levels and the recovery of Na +/ K + -ATPase activity and membrane potential in E. coli following UV/PDS treatment. The high-efficient removal of UV/PDS for broad-spectrum antibiotics proved the feasibility for pharmaceutical wastewater. This work afforded novel perspectives on the ecological risks of atrazine intermediates, generating crucial recommendations for the elimination of emerging contaminants through UV-AOPs.
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危险品化学品经营许可证（带存储）