Nature Communications
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2026
·
IF 18.1
Guo Pan,Dai Yunkun,Zhang Yunlong,Liu Bing,Ma Miao,Liu Bo,Zhang Ziyu,Zhao Zigang,Chen Aibing,Shen Lixiao,Zhao Lei,Wang Zhenbo
Atomically dispersed catalysts based on 3 d metals have been extensively explored in the catalytic field, but stabilizing 4 d and 5 d metals like Ru, Pd, and Pt as single atoms remains a challenge due to their high cohesive energies. Herein, we develop a hydrogen-embrittlement-inspired strategy that leverages H 2 permeation to weaken metal-metal cohesion in 4 d /5 d metal clusters during high-temperature synthesis. Hydrogen diffuses into the clusters, driving their dissociation into individual atoms, which are subsequently stabilized by nitrogen dopants in carbon supports, resulting in the formation of stable M-N 4 single-atom sites. Taking Ru as a model system, ex-situ microscopy and spectroscopy offer definitive evidence that hydrogen permeation disrupts Ru-Ru bonding interactions, facilitating the conversion of Ru clusters into isolated RuN 4 sites during the H 2 -assisted thermal activation process. Consequently, the prepared NC-Ru-950 catalyst achieves satisfactory activity and stability for acidic oxygen reduction and proton exchange membrane fuel cells. This work introduces a robust and universal strategy for stabilizing 4 d and 5 d transition metals as single-atom catalysts, offering a promising route to develop high-performance electrocatalysts.
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Journal of Water Process Engineering
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2026
·
IF 6.6
Li Zeng,Hanbin Wu,Yiyang Xu,J. Paul Chen,Yiqiao Xie,Yang Yu
The efficient treatment of dye-containing wastewater remains a critical environmental issue, primarily due to its biological toxicity to aquatic microorganisms and high chromaticity. In this work, two types of Co₃O₄-functionalized ceramic hollow fiber membranes were designed to activate peroxymonosulfate (PMS) for the efficient removal of dyes from water. Compared to the static-deposited membrane (SCHFM), the dynamic-deposited membrane (DCHFM) demonstrated a higher loading capacity and more uniform distribution of Co 3 O 4 on both the surface and internal pores, leading to a significant enhancement in catalytic performance. Under optimal operating parameters, the DCHFM achieved over 98% removal of rhodamine B (RhB) during the filtration. Radical quenching and electron paramagnetic resonance (EPR) confirmed the involvement of multiple reactive oxygen species, including singlet oxygen ( 1 O 2 ), hydroxyl radical (HO•), sulfate radical (SO 4 •− ) and superoxide radical (•O 2 − ), with 1 O₂ identified as the predominant reactive species. Furthermore, the functionalized membrane exhibited outstanding operational stability and reusability with negligible cobalt leaching. The findings of this study provide a high-performance catalytic membrane system for the advanced purification of industrial wastewater.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Qiuqiu Mu,Xiaobin Yang,Lin Lin,Lizhi Wang,Zhixiang Mu,Jingjing Liu
Chronic hyperglycemia-associated wounds pose major therapeutic challenges because microbial colonization, sustained inflammation, and severe oxidative injury act in concert to impede timely tissue regeneration. Targeting these combined challenges, the present work created an advanced multifunctional wound dressing, designated ADZ1, designed for the combined therapy of diabetic wounds. This system was assembled through Schiff base conjugation of aminated alginate and oxidized pullulan, followed by integration of copper-doped ZIF-8 nanostructures loaded with quercetin (ZIF-8@QC). The resulting architecture demonstrates an intelligent, self-mending, injectable porous matrix. Within an infected wound’s acidic milieu, degradation of the hydrogel occurs responsively, liberating ZIF-8@QC nanocargos. These nanoparticles catalyze available H 2 O 2 to produce considerable reactive oxygen species, enabling powerful initial antimicrobial action. Afterwards, prolonged quercetin release delivers sustained antioxidative and anti-inflammatory benefits. In vivo assessment employing a type‑1 diabetic rat model bearing Staphylococcus aureus -infected wounds revealed that ADZ1 markedly hastened wound closure (exhibiting merely 23.1% remaining wound area at day 14). In summary, by intelligently orchestrating staged bacteria-suppressing, antioxidative, inflammation-mitigating, and pro‑angiogenic activities, the ADZ1 platform demonstrates significant potential for a holistic therapeutic regimen addressing diabetic wounds.
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Food Chemistry-X
·
2026
·
IF 9.2
Wenjie Yu,Qiuning Wang,Qifang Sun,Qiming Zhu,Tao Liu,Shengxiang Yi,Gaowei Zhang,Jie Zhu,Jingze Cao,Jinwang Li,Yan Li,Xiaoqing Fan,Xiali Guo,Yanling Song,Liping Luo
Fat content shapes rice eating and nutritional quality, yet its climate response remains unclear. In this study, we combined six years of multisite field observations across nine provinces in southern China with an interpretable random forest model to identify drivers of rice fat. The model showed that the minimum nighttime temperature during grain filling (TMIN) was identified as the primary factor. Fat content increased with TMIN, whereas the unsaturated fatty acid index (IUFA) exhibited three distinct accumulation patterns and generally declined at higher TMIN. This pattern indicates a physiological tradeoff potentially linked to changes in energy metabolism and membrane stability of rice. Patterns were independently validated in 2024 field trials at 11 sites. Furthermore, projections indicate higher fat under warming but declining IUFA, especially in early- and mid-season rice. These results support climate-resilient cultivation, sustainability, and quality management of rice.
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Journal of Environmental Chemical Engineering
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2026
·
IF 7.5
Wanzi Li,Jie Yang,Yulong Yan,Hang Chen,Rui Zuo
The co-contamination of V(Ⅴ) and Cr(Ⅵ) in wastewater poses significant risks to aquatic ecosystems and human health. However, it remains challenging to both develop efficient adsorbents for their simultaneous removal and elucidate their interactions. In this study, a novel metal-organic framework (MOFs) adsorbent, UiO-66-NH₂, was synthesized in an open system at atmospheric pressure for the treatment of combined pollution of V(Ⅴ) and Cr(Ⅵ) in solution. Adsorption experiments demonstrated that UiO-66-NH 2 exhibits strong adsorption capacity toward V(V) and Cr(VI), primarily governed by chemisorption. The maximum adsorption capacities for V(V) and Cr(VI) in single system adsorption were 543.40 mg/g and 335.28 mg/g, respectively. In the binary system, V(V) and Cr(VI) adsorption capacities reached 712 mg/g and 501 mg/g, respectively, which were 1.92 and 3.32 times those in their respective single systems. This confirms synergistic effects. However, localized uptake fluctuations, such as a 4.4% decrease in Cr uptake with increasing V concentration, indicate competitive interactions. The material also showed selective adsorption toward V(V). Combined with material characterization and molecular dynamics (MD) simulations, the chemical composition and structural stability of the material were analyzed, and the adsorption mechanism at the micro level was revealed. The adsorption mechanism of UiO-66-NH 2 for V(V) and Cr(VI) involves electrostatic interactions, chemical reduction, hydrogen bonding, and coordination. These findings provide theoretical insights for the application of UiO-66-NH 2 in treating V(V) and Cr(VI) contaminants in wastewater and for the design of related adsorbents.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Lijuan Chang,Xianli Wang,Chengbin Liu,Hang Wen,Zhijie Zhang,Chunxia Yao
Perfluorooctanoic acid (PFOA) has attracted growing attention due to its widespread occurrence and harmful effects on humans. Owing to the strong C F bonds that confer inherent stability on PFOA, achieving efficient degradation via traditional photocatalysts is highly challenging. In this study, a UiO-66-NH 2 photocatalytic-persulfate (UiO-66-NH 2 /PS) integrated system was constructed to achieve high-efficiency PFOA removal, and its underlying mechanism was systematically revealed. A zirconium-based metal–organic framework, UiO-66-NH 2 , with readily tunable porosity was successfully synthesized via a solvothermal route, and its crystal structure, microstructure, and optical absorption behavior were confirmed through comprehensive characterizations. After optimization of the reaction parameters, the UiO-66-NH₂/PS system exhibited excellent PFOA degradation performance, with a markedly enhanced removal efficiency relative to the single UiO-66-NH 2 or persulfate system. The degradation efficiency of UiO-66-NH 2 /PS system in degrading PFOA was affected by ubiquitous anions and humic acid in water. Investigation of degradation pathways revealed that the cooperative action of photogenerated holes and SO₄• − /•OH radicals progressively cleaved the recalcitrant C F bonds, with short-chain perfluorocarboxylic acids (PFCAs) including perfluoroheptanoic acid (PFHpA, C 6 F 13 COOH), perfluorohexanoic acid (PFHxA, C 5 F 11 COOH), perfluoropentanoic acid (PFPeA, C 4 F 9 COOH), and perfluorobutyric acid (PFBA, C 3 F 7 COOH) identified as the main degradation intermediates. This study proposed a high-efficiency, economical and eco-friendly approach for the mineralization of PFOA, and meanwhile shed new light on the mechanism underlying the efficient degradation of PFOA by UiO-66-based photocatalysis combined with persulfate activation.
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Emerging Contaminants
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2026
·Vol. 12
·期 2
·100662
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IF 8.2
Zhou Wu,Zhongyong Yan,Yanpeng Liang,Qinglin Mu,Zhaochao Deng,Lijia Jiang,Mingzhi Liu,Guanghao Sun,Zenghui Xu,Zhendong Li,Chunfang Zhang,Yanhong Li,Hanghai Zhou
As emerging contaminants of concern, p -phenylenediamines (PPDs) and their quinone transformation products (PPD-Qs) serve as critical indicators of pollutant inputs from urban runoff and tire wear to coastal ecosystems. However, their occurrence, distribution, and pollution sources in Zhejiang's estuarine-coastal sediments remain uncharacterized. This study investigated the pollution levels and ecological risks of PPDs and PPD-Qs in estuarine and coastal sediments in Zhejiang Province. The results revealed the widespread occurrence of eight PPDs and seven PPD-Qs. The concentrations of Σ 8 PPDs in estuarine and coastal sediments were 3.13–9.03 ng/g dry weight (dw) and 2.30–23 ng/g dw, with N -Isopropyl- N′ -phenyl- p -phenylenediamine (IPPD) being the predominant congener. Concentrations of Σ 7 PPD-Qs ranged from 1.64 to 4.35 ng/g dw in estuarine sediments and from 0.80 to 6.87 ng/g dw in coastal sediments, and were dominated by N , N′ -Bis(methylphenyl)-1,4-benzenediamine quinone (DTPD-Q) and 6PPD-Q. Notably, a significant ( P < 0.05) positive correlation was observed between the concentrations of PPDs and PPD-Qs in estuarine sediments. Priority assessment identified that N, N′ -Bis(2-naphthyl)- p -phenylenediamine (DNPD), N, N′ -Bis(methylphenyl)-1,4-benzenediamine (DTPD), DTPD-Q, and 6PPD-Q were of highest priority. Moreover, 6PPD-Q was identified as a medium or high ecological risk at all sites. This study provides critical baseline data and risk insights for emerging rubber-derived contaminants (PPDs/PPD-Qs), enabling targeted conservation strategies for ecologically vulnerable estuarine-coastal systems.
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FUEL
·
2026
·
IF 7.8
Shijie Wang,Xudong Zheng,Sifan Bao,Zihuai Xu,Zhouzhou Yang,Wei Sun,Jinfeng Mei,Jian Rong,Zhongyu Li
Porous carbon has emerged as a promising material for CO 2 capture owing to its low cost, high specific surface area, and tunable porosity, with surface chemistry and pore architecture serving as critical determinants of adsorption performance. To prevent specific surface area loss in heteroatom-doped biochar—a common limitation, bacterial cellulose (BC) was employed as a structural template to facilitate the in-situ growth of nitrogen-rich ZIF-8 crystals along its fibrous network, forming hybrid composites. Subsequent carbonization yielded N-doped biochar featuring a highly porous, three-dimensionally interconnected architecture. BC contains a large number of oxygen-containing groups. This can facilitate the uniform growth of ZIF-8 along nanofibers. During the high-temperature carbonization process, ZIF-8 creates a large number of micropores through gasification etching and is simultaneously transformed into high-concentration nitrogen-doped porous carbon nanofibers. The 900 °C carbonized sample (CBCZ-900) combines high specific surface area and outstanding CO 2 adsorption (5.35 mmol/g) with exceptional cycling stability, positioning it as a viable candidate for industrial carbon capture systems.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Yan Xiao,XuBo Hou,WenYue Du,YouXing Li,Liang Guo
This study proposes a semi-open low-temperature plasma ambient ionization source coupled with ion mobility spectrometry for in situ analysis of multiphase samples. For the first time, a bidirectional plasma jet configuration is introduced into the IMS system, enabling the dielectric barrier discharge device to simultaneously generate an ionization jet and a transport jet. The ionization jet efficiently ionizes external samples, while the transport jet stably delivers the ionized products into the reaction region of the ion mobility spectrometer. The coordinated action of the two jets creates a plasma-rich ionization and transfer environment between the sample surface and the IMS inlet, effectively suppressing ion neutralization and ion loss, thereby enhancing signal intensity and detection sensitivity. To further optimize ion transmission, the semi-open ionization source is vertically coupled to the reaction region of the ion mobility spectrometer, which helps reduce direct intrusion of neutral gas into the drift region and improves signal stability. The system enables in situ detection without complex pretreatment, reducing background interference and improving the signal-to-noise ratio. Experiments demonstrate rapid detection of analytes including triethylamine, dimethylformamide, acetaminophen, caffeine, acetone, and ethanol, with clear separation between the reactant ion peaks and the analyte peaks. These results confirm the feasibility and application potential of the semi-open bidirectional low-temperature plasma dielectric barrier discharge ion mobility spectrometry system for rapid in situ detection of multiphase samples, providing a promising approach for environmental monitoring, public safety, food safety, and pharmaceutical analysis.
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FUEL
·
2026
·
IF 7.8
Zhiwei Lu,Ke Chen,Rao Fu,Xiangyi Long,Peixin Jiang,Jinrui Wu,Yue Zhang,Yidian Yuan,Qiule Lu,Zhaodan Fu,Minglei Yan,Lan Zhang
This work successfully synthesized and empirically evaluated the F-doped Prussian blue analogues (PBA) deposition of FePO 4 (FPO) on the nickel foam (NF). The PBA/NF cubic structure was hydrothermally grown on the Ni-MOF/NF precursor and encapsulated by electrodeposited FePO 4 spheres, leading to the final F-PBA@FPO/NF. The catalyst serves as a high-performance bifunctional electrocatalyst, delivering low overpotentials of 220 mV for the OER and 174 mV for the HER at 10mA cm −2 , coupled with favorable Tafel slopes of 144 and 130.9 mV dec −1 , respectively. The catalyst was doped with a large number of F atoms, which formed abundant hydrogen bonds with water, thereby promoting the generation of HER. The substantial formation of Ni-F bonds during the testing stage created a modified local coordination environment, thereby establishing a foundation for the continuous in-situ formation of active NiOOH phases under operating conditions. Interestingly, F doping plays a dual role: it tailors the electronic structure of metal centers and induces in-situ etching of the material, thereby generating structural openings during the electrochemical process. This work advances the fundamental understanding and rational design of F-doped catalysts and bifunctional electrocatalysts for hydrogen production.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
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IF 4.8
Jing-Jing Liu,Si-Dian Miao,Zhan-Yi Wang,Ya-Han Zhu,Bin-Bin Jiang,Shuang-Shuang Long,Shu-Qin Gao,Ying-Wu Lin
The anti-glycation effects and mechanisms of eight quinone-related compounds, primarily sourced from medicinal and edible plants, were evaluated in this study. In vitro glycation experiments were conducted to study the structural perturbation induced by d -ribose on human myoglobin (HMb) in the presence of the tested compounds. Spectroscopic and electrophoretic analyses indicated that among the four benzoquinone-related substances, thymoquinone and its structurally closest analogue 2,5-dimethyl-1,4-benzoquinone, exhibited significant inhibitory effects on the d -ribose-induced glycation, thereby maintaining protein structural stability, reducing advanced glycation end products (AGEs) formation, and attenuating the covalent protein modification by d -ribose. In contrast, 1,4-benzoquinone and hydroquinone (a reduction product of 1,4-benzoquinone) promoted HMb denaturation through the Michael addition mechanism. Of the two naphthoquinones, juglone and plumbagin, showed anti-glycation effects, whereas the anthraquinones emodin and chrysophanol showed no significant effects. Nano-HPLC-MS/MS analysis further showed that thymoquinone was more effective in preventing glycation than juglone and plumbagin. This study investigates the mechanisms underlying glycation inhibition by quinones, revealing that the presence of dual β -substituted carbons on the benzoquinone ring is critical for stabilizing protein conformations and suppressing glycation. It provides a preliminary mechanistic basis and identifies candidate molecules for potential applications of quinones in retarding glycation, such as in managing diabetic complications or inhibiting glycation reactions during food processing.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Zhenzhou Wang,Qing Zuo,Fang Deng,Zhengrong Zhao,Lei Wu,Longshuai Zhang,Wei Ren,Yongcai Zhang,Xubiao Luo,Jianping Zou
A novel “pollutant-triggered catalysis” paradigm is proposed, using pre-adsorbed pollutants as electronic modulators to optimize peroxymonosulfate (PMS) activation over mono-disperse iron single atoms anchored on porous carbon nitride (Fe SAC /CN) for water remediation, unlike conventional strategies treating contaminants as passive targets. Catalytic tests, spectroscopic analyses, and density functional theory calculations were integrated to clarify the effect of pre-adsorbed electron-rich 4-chlorophenol on the electronic configuration of Fe sites and the PMS activation mechanism. The pre-adsorbed pollutant enhanced Fe-site Bader charge transfer and upshifted the Fe 3d-band center, thereby strengthening PMS adsorption, lowering the activation barrier, shifting the dominant pathway toward Fe(IV)=O and 1 O 2 rather than radicals, enabling 100% 4-chlorophenol removal within 15 min, and yielding a 5.34-fold rate enhancement over pristine Fe SAC /CN. The results reveal that substrate-induced electronic modulation of single-atom Fe sites is a viable route to regulate reactive species generation and improve catalytic performance. By redefining contaminants as active electronic modulators, this work offers a scalable paradigm for sustainable water remediation that simultaneously enhances oxidation capacity and environmental applicability.
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危险品化学品经营许可证（带存储）