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
·
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
·
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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JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Zongkai Li,Qianqian Wang,Lin Hao,Weihua Liu,Qiuhua Wu,Chun Wang
The sensitive detection of trace endocrine disruptors holds immense practical significance for safeguarding food safety. Herein, a boronic acid-decorated magnetic porous organic polymer (POP-PA@Fe 3 O 4 ) was synthesized as adsorbent for the extraction and enrichment of several phenolic endocrine disruptors (PEDs). The decoration of boronic acid provides a high density of hydroxyl groups, significantly enhancing its adsorption performance. POP-PA@Fe 3 O 4 exhibited excellent adsorption capability toward PEDs by virtue of H-bonding interactions and π-π stacking. Subsequently, combined with high-performance liquid chromatography/mass spectrometry (HPLC/MS), a sensitive method for the determination of PEDs in milk was established by employing POP-PA@Fe 3 O 4 as a magnetic extraction adsorbent. The method showed low detection limits (S/ N = 3) of 0.080–0.40 ng·mL −1 . The recoveries of spiked samples spanned 84.6% to 100.0% with RSD ≤ 7.5%. This work presents a feasible approach for the detection of PEDs in milk and further expands the application of functionalized porous organic polymers in food safety monitoring.
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PubMed
高影响因子
Talanta Open
·
2026
·
IF 5.1
Mei Liu,Xuehong Min,Die Hu,Xiaonan Zhang,Siyi Zhang
In this study, we developed catechol-imprinted magnetic molecularly imprinted polymers (Ca-DFFPBA-MMIPs) via a dual-affinity strategy combining boronate affinity and a two-step template immobilization protocol. The Ca-DFFPBA-MMIPs exhibited high affinity and selectivity for catecholamines (norepinephrine, epinephrine, and dopamine) under neutral conditions. The adsorption capacity reached a plateau at pH 6.5–7.0, and the adsorption time was optimized to 40 minutes. The MMIPs showed excellent selectivity for the target catecholamines over structurally related interferents. The Ca-DFFPBA-MMIPs also demonstrated good reusability, retaining ≥90% of their initial adsorption capacity after seven consecutive cycles. The analytical performance of the Ca-DFFPBA-MMIPs was validated in terms of linear range, coefficient of determination (R²), limit of detection (LOD), limit of quantification (LOQ), and intra- and inter-day precision (RSD). The LODs were 12–31 ng mL⁻¹ and LOQs were 40–103 ng mL⁻¹, with RSDs of 0.87–1.13% (intra-day) and 1.75–1.95% (inter-day). The Ca-DFFPBA-MMIPs were successfully applied to the selective extraction of catecholamines from equine urine (enrichment factors of 18–27), with recoveries ranging from 64.5% to 105.7%. This study provides a new approach for the analysis of catecholamines in complex matrices and highlights the potential of Ca-DFFPBA-MMIPs as a practical nanosorbent for efficient and selective enrichment of catecholamines and related compounds.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Yuanliang Yuan,Xiaocong Zhong,Xiangming Xiong,Hongxuan Xie,Ruixiang Wang,Zhifeng Xu,Xing Ou
Developing bifunctional oxygen electrocatalysts with excellent activity and durability is critical for scaling rechargeable zinc–air batteries (ZABs). Herein, we propose an integrated “etching–doping–phosphorization/carbonization” route to synthesize Ni 2 P/Co 2 P heterojunctions anchored on B,N,P co-doped carbon (Ni 2 P/Co 2 P-NPBC). Firstly, boric acid etching of the ZIF(Zn, Co, Ni) generates a bird-nest-like porous framework and simultaneously introduces boron; subsequent phosphorization/carbonization at 1000 °C yields Ni 2 P/Co 2 P nanocrystals uniformly anchored on the B, N, P co-doped carbon. It is confirmed that the carbon framework exhibits abundant defects and contains B, N, and P atoms chemically bonded to the matrix. This structure possesses a high surface area and a through-pore network, which ensure the exposure of active sites and facilitate rapid mass transport. Density functional theory (DFT) calculations show that boron doping markedly decreases charge density and upshifts the d-band center of Co sites in the Ni 2 P/Co 2 P heterojunction (from −1.26 to −0.87 eV), thereby raising the oxygen reduction reaction (ORR) limiting potential (from 0.34 to 0.69 V) and lowering the oxygen evolution reaction (OER) theoretical overpotential (from 0.89 to 0.54 V). Benefiting from these features, Ni 2 P/Co 2 P-NPBC in alkaline media delivers an ORR half-wave potential of 0.88 V (vs. 0.85 V for 20% Pt/C) and an OER overpotential of 264 mV at 10 mA cm −2 (vs. 308 mV for RuO 2 ). A lab-fabricated ZAB achieves an open-circuit voltage of 1.586 V, a peak power density of 180.8 mW cm −2 , a specific capacity of 816.2 mAh g −1 , an energy density of 1159.0 Wh kg Zn −1 , and 600 h stable cycling.
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JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Wei-Min Liu,Li-Hao Xu,Ying-Nan Feng,Shen-Hui Li,Meng Wen,Yan-Mei Zhang,Tao Wang,Wei-Wei Cai,Le Sang,Heng Mao,Zhi-Ping Zhao
Biofuel is a promising solution for energy crisis and excessive CO 2 emission. Membrane-based pervaporation process enhances biomass fermentation by constantly separating inhibitory bio-alcohols. However, dominating pervaporation membranes often show low permeation flux and inadequate separation factor. Herein we report the engineering fabrication of flexible composite hollow fiber membranes (HFMs) with oriented metal-organic framework (MOF@ZnO) arrays for ethanol-water separation. The epitaxial MOF arrays containing one-dimensional (1D) transport channels was constructed on HFMs, followed by a superhydrophobic and defect-free surface coating. The arrayed structure induces the flow pattern enhancement near the feed-membrane interface and increases mass transfer area, resulting in self-enhancing separation performance. The synergistic effects of the arrayed surface structure and MOF transport channels on separation performance enhancement were revealed by the experimental and simulation results. Impressively, for the composite HFM, the activation energy of ethanol was found to be lower than that of water. When applied to the pervaporation of a 5 wt% ethanol-water mixture, this membrane achieved an ultrahigh flux along with a good separation factor of 10.5. The versatile strategy is suitable for both inner- and outer-selective HFM modules as well as for various membrane materials which exhibit great potential for industrial applications.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yuchen Wang,Xinyi Du,Zaka Ullah,Mingliang Chen,Xiaowei An,Chunyang Wei,Liwei Liu,Cunguo Wang,Qi Li
Photo-assisted rechargeable batteries exhibit excellent electrochemical performance, attributed to their unique photoenhancement effect. However, their performance is constrained by low utilization efficiency of photogenerated carriers in the cathode material. We herein realize the targeted modulation of photogenerated electron selectivity with the aim of maximizing the lithium storage capacity per unit time by constructing a metal–organic coordination system. This system integrates magnetic cobalt (Co) centers, 2,2′-bipyridine photoactive units, and two specific storage ligands (i.e., DHBQ and BQ). Upon photoexcitation, the strong ligand-to-ligand charge transfer (LLCT) effect facilitates electron transfer between different lithium-storage ligands. Furthermore, the application of an external magnetic field extends the photogenerated carrier lifetime and improves separation efficiency by modulating spin-polarized carriers and enhancing spin–orbit coupling, which further enhances LLCT. Benefiting from the combined modulation of illumination and magnetic field, the organic cathode delivers a discharge capacity of 416 mAh g −1 . This work not only provides new insights into the dynamics of photogenerated carriers in battery cathodes but also offers valuable guidance for the development of multi-field regulated energy storage systems.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Ruixiang Wang,Qin Du,Jiayao Zhou,Li Zhao,Jingsong He,Ravi Naidu,Dionissios Mantzavinos,Grigorios Beligiannis,Nikolaos Andritsos,Fei Shen,Yongjia Lei
Covalent organic frameworks (COFs) with long-range ordered periodic structures have emerged as promising photocatalysts for advanced oxidation processes. Herein, we reported a highly crystalline porphyrin-based COF (COF-TAP-Cu) featuring outstanding visible-light-driven oxidation activity. COF-TAP-Cu was obtained via a facile bottom-up metallization strategy that tuned the conjugation and planarity of the porphyrin building block (TAP-H). Incorporation of Ni 2+ or Cu 2+ into TAP-H moderately enhanced the π-conjugation of the resulting metalloporphyrin monomers (TAP-M; M = Ni, Cu), leading to markedly improved crystallinity of the corresponding COFs. Notably, structural analysis indicated that the porphyrin ring in TAP-Ni undergoes pronounced distortion, whereas TAP-Cu retained a near-planar geometry. As a result, COF-TAP-Cu exhibited higher crystallinity and superior photocatalytic oxidation performance compared with the metal-free porphyrin-based COFs (COF-TAP-H) and Ni-anchored porphyrin-based COFs (COF-TAP-Ni). Under visible-light irradiation, COF-TAP-Cu efficiently activated molecular oxygen to produce both O 2 •- ( via electron transfer) and 1 O 2 ( via energy transfer), enabling rapid degradation of sulfadiazine (SDZ) with a removal efficiency of up to 95% within 30 min. This work highlighted a monomer-design strategy that balanced conjugation and planarity to construct highly crystalline porphyrin-based COFs, offering new insights for photocatalytic antibiotic remediation in aquatic environments.
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