FOOD RESEARCH INTERNATIONAL
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2026
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IF 8.8
Ruling Tang,You Luo,Yasmina Sultanbawa,Yongguang Huang
ALRP3 is a rapidly fermentable pectin, while USRP2 is a slowly fermentable one. • Repeated dosing with either pectin was conducive to SCFA production. • ALRP3 preferentially enriched butyrate-producing bacteria. • USRP2 specifically promoted Bifidobacterium and Phocaeicola . This study investigated how gut microbiota responds to repeated interventions with two structurally distinct pectic polysaccharides (ALRP3 and USRP2) isolated from red raspberries and how structural variations influence fermentation outcomes. The low-molecular-weight and less branched ALRP3 was rapidly fermentable, while high-molecular-weight and more branched USRP2 was slowly fermentable. Both pectic polysaccharides modulated gut microbiota and promoted SCFA levels, and these effects were significantly influenced by polysaccharide structure, dosing cycles, and their interaction. During fed-batch fermentation, the substrates were initially added at 0 h and subsequently supplemented at 12, 24, and 36 h, resulting in four substrate additions in total. Following repeated supplementation, the fecal microbiota gradually formed new stable community structures, and SCFAs steadily accumulated, with both pectic polysaccharides reaching the peak total SCFA production after the third supplementation. They enriched similar beneficial bacteria but also induced distinct flora. ALRP3 specifically boosted butyrate-producing bacteria and butyrate production, while USRP2 enriched specific Bifidobacterium strains. These results support the targeted design of pectic polysaccharide-based microbiota regulation strategies. Download: Download high-res image (206KB) Download: Download full-size image
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高影响因子
Molecular Catalysis
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2026
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IF 4.3
Minghao Geng,Jiahao Li,Zhengze Li,Meng Sui,Fashe Li,Hua Wang,Zhiyu Hua
Fe-modulated Cu-ZnO CeO 2 catalysts were synthesized via sol-gel method. • Moderate Fe doping suppressed CuO growth and improved Cu dispersion. • Fe tuned the interface and oxygen defects to balance reducibility. • Fe10-CZCe achieved 14.5% CO 2 conversion with high methanol selectivity. • The promotion by Fe stems from interfacial regulation, not new phases. Copper-based catalysts have been widely applied in methanol synthesis from CO 2 hydrogenation. Yet efficient operation at an industrially relevant level remains challenging. The use of CO 2 as a carbon source is still limited by difficult molecular activation and by imperfect interfacial matching. Here, a series of Fe-doped Cu-ZnO CeO 2 catalysts was prepared by a sol-gel route. The influence of Fe content on phase structure, surface electronic environment, reduction behaviour, CO 2 adsorption characteristics and catalytic performance was examined systematically. Fe incorporation did not change the fundamental phase composition of CuO and CeO 2 . It did, however, strongly affect Cu dispersion, the near-surface defect environment of CeO 2 , and the electronic structure of the interface. Moderate Fe addition suppressed CuO crystallite growth, improved Cu dispersion, and produced a more concentrated reduction profile with a more suitable distribution of CO 2 adsorption strength. Excess Fe enhanced defect-related signals and high-temperature adsorption, but also increased interfacial perturbation, which was unfavourable for the further conversion of intermediates. At 3 MPa and 260 °C, Fe10-CZCe showed the best overall performance, giving a CO 2 conversion of 14.5% together with high methanol selectivity and the highest methanol space-time yield. The beneficial role of Fe is therefore linked to reconstruction of the Cu-ZnO CeO 2 interface, which promotes a more effective balance between CO 2 adsorption, activation and hydrogenation. These findings provide a useful perspective for compositional tuning and interface design in Cu-based catalysts. Download: Download high-res image (231KB) Download: Download full-size image
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Lingzhen Miao,Siqi Luo,Ziru Liang,Ming Lu,Pengcheng Wang
The treatment of wastewater laden with energetic compounds, particularly 2,2′,4,4′,6,6′-hexanitrostilbene (HNS), remains highly challenging owing to the environmental persistence and inherent toxicity of nitroaromatic derivatives. Herein, we reported a CoFe 2 O 4 /PMS system for the first-time efficient degradation of HNS. The CoFe 2 O 4 /PMS process afforded 96.3% removal of HNS within 150 min, together with 89.3% chemical oxygen demand (COD) removal and 49.5% total organic carbon (TOC) removal, indicating substantial deep oxidation and partial mineralization. Mechanistic studies combining quenching experiments, EPR spectroscopy, electrochemical analysis, and DFT calculations disclosed a synergistic radical/non-radical pathway dominated by 1 O 2 , with Fe incorporation enhancing PMS adsorption, charge transfer, and catalytic activation. HPLC-MS revealed degradation intermediates and supported three plausible degradation pathways, whereas QSAR analysis indicated progressive detoxification during oxidation. The catalyst further exhibited excellent stability, negligible metal leaching, and broad applicability toward actual HNS production wastewater and other energetic organic pollutants. These findings identify CoFe 2 O 4 /PMS as a promising platform for the efficient remediation of hazardous energetic compound wastewater.
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OPTICAL MATERIALS
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2026
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IF 4.3
Qingyuan Niu,Penghui Ma,Feng Luo,Xingyu Liu,Shuxin Yin,Xin Huang,Yumin Song
Red fluorescent powder has important applications in various fields such as display and lighting. In this paper, Eu 3+ /Nb 5+ co-doped SrTiO 3 fluorescent material was synthesized by hydrothermal method, and its phase structure, microstructure, luminescence properties, thermal stability and luminescence dynamic characteristics were systematically characterized. The results showed that under 395 nm near-ultraviolet excitation, the material emitted high-purity Eu 3+ characteristic red light at 612 nm; when the Eu 3+ doping content was 7 mol% and Nb 5+ was 3.5 mol%, the luminescence intensity was increased by 259% compared with single-doped Eu 3+ ,and the absolute quantum efficiency increased. Nb 5+ plays a dual role in this process, namely charge compensation and energy transfer modulation: On one hand, it inhibits the formation of lattice defects through charge balance between sites; on the other hand, it constructs an efficient light absorption center, enabling ultrafast energy transfer from the matrix to Eu 3+ . This material has stable color properties within the temperature range of 303-463 K, with no obvious color shift, and the thermal quenching activation energy is 0.34 eV, showing excellent thermal stability. This efficient and stable red fluorescent powder prepared by the Eu 3+ /Nb 5+ co-doping strategy has broad application prospects in near-ultraviolet excitation high color rendering index white LED and anti-counterfeiting encryption fields.
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APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Jingxin Qi,Yu Chen,Yaru Liu,Runjia Xu,Kaifeng Xue,Lulu Du,Li Lv,Pinhua Zhang,Guangliang Cui
Bi-MOF-derived CuO/ZnO heterojunctions were made by ion exchange. • The sensor reaches 10 ppb detection and 5.08-fold higher response than ZnO. • It maintains a 6.38 response to 1 ppm NO 2 at −20 °C. • Quantitative NO 2 monitoring is demonstrated for precision agriculture. The development of miniaturized and portable NO 2 sensors for agricultural environments, capable of operating at low temperatures, is of great scientific significance and application value for improving nitrogen fertilizer utilization efficiency and preventing environmental pollution. ZnO/CuO heterostructures were prepared by employing bimetallic-based metal–organic frameworks (Bi-MOFs) as self-sacrificial templates for enhanced NO 2 sensing at room and lower temperatures in the field of precision agriculture applications. Our experiments reveal that the ZnO/CuO heterostructure calcined at 400 °C exhibits a response approximately 5.08 times that of pure ZnO. It delivers a response value of 7.78 toward 1 ppm NO 2 at 20 °C, with response and recovery times of 70 s and 150 s, respectively. Furthermore, it exhibits an excellent detection limit as low as 10 ppb toward NO 2 . Notably, even at − 20 °C, its response to 1 ppm NO 2 remains at 6.38. The excellent gas-sensing performance can be attributed to the synergistic contribution of the mesoporous structural advantages of MOF-derived MOS and heterostructures. This work provides promising research ideas and strategies for the application of Bi-MOF-derived MOS heterostructures in gas sensing. Download: Download high-res image (208KB) Download: Download full-size image
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DYES AND PIGMENTS
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2026
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IF 3.9
Linkai Zhao,Jing Zhao,Jiaying Hu,Zhao Mo,Ziyi Wang,Zhaoli Xue,Lei Feng,Long Zhao
Two zinc porphyrin-melamine complexes are designed for photocatalysis. • The two TiO 2 composites show similar morphology and light harvesting ability. • TPA-surpasses TPTZ-substituted samples for photocurrent and degradation. • All h + , .•OH and •O 2 − are the reactive oxygen species for photodegradation. • Cascade superiors competitive charge transfer for ROS generation. The generation efficiency of reactive oxygen species (ROS) typically governs the photodegradation performance. This work aims to compare two molecular design protocols in ROS photogeneration on TiO 2 nanoparticles. To this end, two zinc porphyrin-melamine conjugated complexes are designed, denominated as tri-TPTZ-ZnP-mel and tri-TPA-ZnP-mel, bearing triphenyltriazine (TPTZ) and triphenylamine (TPA) as the substituents, respectively. Our results demonstrate that the electron-withdrawing, planar tri-TPTZ-ZnP-mel induces intramolecular competitive electron transfer and accelerates charge recombination. In contrast, the electron-donating, three-dimensional structured tri-TPA-ZnP-mel suppresses molecular aggregation, promotes cascade charge transfer, and delivers significantly higher photocurrent, lower interfacial charge-transfer resistance, and superior photodegradation activity toward organic dyes. Mechanistic studies clarify the distinct roles of holes (h + ), hydroxyl radical (•OH) and superoxide radical (•O 2 − ) governed by substituent-driven charge transfer behaviours. Download: Download high-res image (309KB) Download: Download full-size image
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CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2026
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IF 3.5
Zhen Xu,Caiyun Wang,Jiling Guo,Tianyu Bai,Yunmei Zhang,Han Yang,Fan Shao,Fengzhi Guo,Wenbin Huang,Qiang Wei
Cerium modification modulates the surface acidity and metal-support interactions of the Ni/γ-Al 2 O 3 catalyst. • Cerium species can not only suppress the formation of strong acid sites, but also regulate the adsorption configuration of pyridine molecules. • The enhanced electron transfer from cerium to nickel improves the reducibility and hydrogen activation performance of nickel. • The Ni/Al–Ce(10) catalyst achieves high catalytic activity in the pyridine hydrogenation reaction. To address the key challenge of achieving both high conversion and high selectivity in the selective hydrogenation of pyridine, this paper proposes a strategy of precisely modulating the surface acidity and metal–support interaction of an alumina support via cerium (Ce) modification. The study shows that Ce modification effectively suppresses the strong acid sites on the alumina surface, thereby promoting the desorption of the target product, piperidine. Meanwhile, Ce doping induces a flat-lying adsorption configuration of pyridine molecules, which is more favorable for the saturation hydrogenation of the aromatic ring, significantly enhancing the hydrogenation selectivity. Ce species facilitate electron transfer to the nickel active centers, increasing the local electron density around the nickel sites. This reduces the binding energy of nickel, enhances its reducibility, and effectively inhibits the formation of nickel aluminate spinel (NiAl 2 O 4 ), thereby improving the intrinsic hydrogenation activity of the catalyst. Under the reaction condition of 200 °C, the Ni/Al–Ce (10) catalyst achieves a pyridine conversion of 99.5% and a piperidine selectivity of 97.4%. Download: Download high-res image (281KB) Download: Download full-size image
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FOOD CHEMISTRY
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2026
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IF 10.4
Tianyu Hu,Fang Zou,Jie Yu,Siqian He,Shiyun Lai,Yuanjie Teng,Zaifa Pan
UNCA employs upconversion nanoparticles as signal probes for specific IGF-1 recognition. • Single-molecule counting enables IGF-1 detection with a low LOD of 6.04 pg/mL. • This method exhibits low cross reactivity and good recovery rates in milk products. There is rapidly growing interest in food nutrition assessment, particularly for nutrients present at low abundance. Here, an upconversion nanoprobe counting analysis (UNCA) is designed for ultra-sensitive detection of insulin-like growth factor-1 (IGF-1). The high sensitivity is attributed to the strong fluorescent intensity of upconversion nanoparticles (UCNPs) and highly specific antibody-antigen binding. Core–shell structured UCNPs are synthesized via co-precipitation followed by layer-by-layer epitaxial growth, and detection probes are constructed through hydrophilic ligand exchange and antibody conjugation. Two detection methods, traditional fluorescent intensity detection and single-molecule counting, are established with linear working ranges of 0.05–5000 ng/mL, which reach limit of detections (LODs) of 21.23 and 6.04 pg/mL, respectively. UNCA is further employed for analyzing three representative milk products, achieving recovery of 73.90%–107.09% with coefficients of variation (CVs) between 2.24% and 7.57%. This method demonstrates quantitative detection of trace-level IGF-1, especially via single-molecule counting. Download: Download high-res image (111KB) Download: Download full-size image
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PubMed
高影响因子
Materials Today Nano
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2026
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IF 7.6
Han Liu,Zijian Gao,Yifan Fu,Qingyu Yang,Kuibo Yin
A three-dimensional MXene/BC/CeO 2 aerogel with lightweight, highly elastic, and thermally insulating characteristics was constructed. • CeO 2 significantly enhances the interfacial and dipole polarization of the composite. • At an identical thickness, it achieves the broadest EAB of 6 GHz along with an optimal RL min of -49.3 dB. • The designed periodic architecture broadens the bandwidth to 14.54 GHz, covering over 90% of the target frequency range. Transition metal carbides/nitrides (MXenes) exhibit high electrical conductivity, a unique two-dimensional layered structure, and abundant surface functional groups and defects, thus holding great promise for electromagnetic wave absorption (EWA). However, issues such as impedance mismatch and a tendency to self-stack severely restrict their practical applicability. In this study, a lightweight and highly elastic Ti 3 C 2 T x MXene/bacterial cellulose (BC)/ceria (CeO 2 ) composite aerogel was developed via a facile freeze-drying method. The three-dimensional lamellar porous architecture, with MXene and BC serving as a robust skeleton, effectively prevents the stacking of MXene nanosheets, while the introduction of CeO 2 nanoparticles optimizes the impedance matching and significantly enhances the polarization loss, enabling excellent electromagnetic wave absorption with polarization loss as the dominant mechanism. By simply adjusting the CeO 2 doping content, an effective absorption bandwidth (EAB) of 6 GHz and a minimum reflection loss (RL min ) of -49.3 dB can be achieved, and through macroscopic structural design, the EAB is expected to be further broadened to 14.54 GHz. Moreover, the composite aerogel exhibits an RCS reduction of 28.12 dB·m 2 and an ultralow thermal conductivity of 0.035 W/(m·K), endowing it with potential for multispectral camouflage compatible with both radar and infrared detection. This study offers a new strategy for developing high-performance MXene-based composite wave-absorbing materials. Download: Download high-res image (416KB) Download: Download full-size image
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Long-Wen Chen,Chen-Xi Li,Shuai Wang,Ming-Fei Li
Isopropanol-extracted bamboo lignin showed the highest antioxidant activity. • Mild phenolation in 90% formic acid increased phenolic –OH by 93.1%. • β-O-4 linkages were selectively cleaved and p -hydroxyphenyl introduced. • DPPH radical scavenging activity increased by 110.68% after phenolation. • Acetone/water system yielded spherical lignin nanoparticles (134.64 nm, PDI 0.15). To develop nature-derived and potent antioxidants, bamboo was employed as a raw material to isolate lignin using alcohol/water systems. Among the tested solvents, isopropanol-extracted lignin exhibited the highest radical scavenging activity. A subsequent mild phenolation strategy followed by nanoformulation substantially enhanced its antioxidant performance. Four alcohol/water mixtures (9:1, v /v) comprising methanol, ethanol, n -propanol, and isopropanol were systematically compared, revealing that isopropanol-extracted lignin possessed superior free radical scavenging capability. Phenolation of the isopropanol lignin was conducted in 90% formic acid medium with phenol at 100 °C. Two-dimensional heteronuclear single quantum coherence nuclear magnetic resonance (2D-HSQC NMR) analysis demonstrated that the phenolation process efficiently cleaved β-O-4 linkages in lignin and introduced phenolic hydroxyl groups in the form of p -hydroxyphenyl units at the α-position. Quantitative analysis by phosphorus-31 nuclear magnetic resonance ( 31 P NMR) showed an 84.7% reduction in aliphatic hydroxyl content, a 93.1% increase in phenolic hydroxyl content, and a concomitant 110.68% enhancement in 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity after phenolation. Lignin nanoparticles were subsequently prepared via an antisolvent method. Three solvent systems (ethanol/water, isopropanol/water, and acetone/water) were evaluated for their influence on nanoparticle morphology and dispersibility. Notably, the acetone/water system yielded regular spherical nanoparticles with an average diameter of 134.64 nm, a zeta potential of −24.34 mV, and a polydispersity index of 0.15, indicating excellent dispersion stability. The proposed strategy proceeded at 100 °C and avoided the use of specialized equipment or strongly corrosive reagents. Relying on abundant bamboo feedstock and a recyclable formic acid medium, it may offer advantages for scale-up production, providing a feasible route for the preparation of renewable antioxidant nanomaterials. These findings suggest potential applications of phenolated lignin nanoparticles in polymeric materials, food packaging, and biomedical fields.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Hongyan huang,Shengji Wu,Hui Wang,Jie Zhou
Thermal pretreatment reduces rather than improves Hg 0 removal of AC. • Acidic functional groups serve as the active centers for Hg 0 oxidation. • Hydrogen-bonded microenvironment enhances catalytic activity of acidic sites. • Synergy of acid sites and microenvironment enables high-efficiency Hg 0 removal. Activated carbon injection is a mainstream technology for elemental mercury (Hg 0 ) removal from flue gas. This study investigates an abnormal phenomenon that thermal pretreatment of AC reduces rather than improves its Hg 0 removal efficiency, and systematically elucidates the underlying mechanism. The results demonstrate that acidic sites (e.g., carboxyl groups) on the AC surface serve as the active centers for the catalytic oxidation of Hg 0 , while the hydrogen-bonded microenvironment formed by adsorbed H 2 O molecules significantly enhances the acidity strength and catalytic activity of the acidic sites. Removal of the hydrogen-bond microenvironment severely reduces Hg 0 removal performance, whereas supplementation of H 2 O or other hydrogen-bond donor molecules effectively recovers the Hg 0 removal efficiency. At medium-to-high temperatures, constructing a thermally stable microenvironment (e.g., using benzoic acid) significantly improves the Hg 0 removal efficiency of AC. Based on this synergistic mechanism, the acid-treated and benzoic acid-modified AC (AC-H-150-benzoic acid) could achieve an initial Hg 0 removal efficiency of 75.8% at 150 °C. This work reveals the synergistic effect between acidic sites and the hydrogen-bonded microenvironment on AC for Hg 0 removal, providing new insights for the rational design of high-performance Hg 0 removal adsorbents. Download: Download high-res image (182KB) Download: Download full-size image
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JOURNAL OF NANOBIOTECHNOLOGY
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2026
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IF 15
Cai Shanchen,Zheng Wenfu,Lin Ting,Zhang Siyuan,He Lanye,Zu Mali,Wang Le
Rapid closure is crucial for effective wound healing. However, current wound dressings often fall short in this aspect. Herein, we present a light-responsive wound dressing (A@MC) composed of a heat-curable methyl cellulose (MC) hydrogel and aminophenylboronic acid (ABA)-modified gold nanoclusters (AGNCs). The A@MC is injectable and can conform, connect, and adhere to wounds of irregular shapes before gelation. Upon near-infrared (NIR) light irradiation, the photothermal effect of the AGNCs triggers an instant gelation and contraction of the dressing and simultaneously a sharp shrinkage of the wound. It achieves a shrinkage rate up to 46% within 5 min for bacteria-infected wound in mice. Moreover, the contraction of A@MC can achieve a rapid release (16%, 5 min) of the AGNCs, which can bind to bacteria through ABA-lipopolysaccharide (LPS) interaction, displaying a targeted antibacterial therapy. The A@MC realizes an accelerated healing (complete healing within 14 days) of multidrug-resistant Pseudomonas aeruginosa ( P.a )-infected wounds. Graphical abstract
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危险品化学品经营许可证（带存储）