POSTHARVEST BIOLOGY AND TECHNOLOGY
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2026
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IF 7.3
Zhiquan Wang,Junchao Wang,Lu Qin,Zhen Huang,Xinxin Xu,Zhifeng Zhu,Jingjie Tang,Xiaojie Cui,Rangwei Xu,Feng Zhu,Yanping Fu,Xiuxin Deng,Quan Sun,Yunjiang Cheng
Postharvest wax coating reduces water loss and enhances visual appeal but impairs gas exchange in citrus fruit, inducing anaerobic fermentation and off-flavor development. This study demonstrates that exogenous γ-aminobutyric acid (GABA) mitigates these physiological disorders. GABA enhanced peel gas permeance by 1.7- to 2.2-fold through suppression of C25-C31 cuticular alkane biosynthesis and enlargement of stomatal apertures, thereby alleviating internal hypoxia. This metabolic shift from anaerobic fermentation toward aerobic respiration was mediated by GABA shunt reprogramming and amino acid metabolic remodeling, which reduced ethanol accumulation by 57% while preserving key flavor compounds. Transcriptomic analysis revealed coordinated regulation of genes associated with wax synthesis, fermentation, and hypoxia responses. This simple amino acid treatment preserves citrus fruit flavor and nutritional quality under waxing-induced hypoxia by mitigating physiological disorders.
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ACS Applied Bio Materials
·
2026
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IF 5.6
Liyu Shi,Xian Li,Yunfei Mo,Xiying Chen,Zhanhui Tao,Yaqing Liu
The treatment of diabetic wounds remains unsatisfactory due to bacterial infection risks and impaired angiogenesis during the healing. Herein, a multifunctional hydrogel was constructed for boosting multidrug-resistant bacteria-infected diabetic wound healing by integrating gas therapy and cascaded chemical dynamic therapy (CDT). The hydrogel was based on Pluronic F127 and hyaluronic acid (HA), which was loaded with an iron-based metal organic framework (MIL-100(Fe)) coupled with S-nitrosoglutathione (GSNO) and glucose oxidase (GOX) (MIL-100(Fe)@GOX@GSNO@F127-HA, shortly named as MGG@FH). In the hyperglycemic diabetic microenvironment, GOX is activated to reduce local glucose levels and pH while generating hydrogen peroxide (H2O2). MIL-100(Fe) with peroxidase-like activity catalyzes H2O2 to produce reactive oxygen species (ROS), exerting antibacterial effects. GSNO spontaneously releases nitric oxide (NO) to modulate inflammation and promote angiogenesis. The MGG@FH hydrogel downregulates pro-inflammatory factors such as tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) while upregulating the anti-inflammatory factor IL-10. It also enhances angiogenesis and collagen deposition in vivo, significantly accelerating the healing of infected diabetic wounds. Meanwhile, the temperature-sensitive sol–gel transition property of the hydrogel makes it possible for in situ forming gels on the wound site, allowing it to conform to irregular shapes and well fit the depth of the wound. The strategy combines “endogenous improvement” (reducing glucose and pH) with “exogenous resistance” (antibacterial/anti-inflammatory effects), offering an effective approach for comprehensive infected diabetic wound management.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Wei Zhang,Ganceng Yang,Hongyan Sun,Haisheng Zhang,Jiaqi Wang,Xinyi Long,Zhelin Mao,Yu Fu,Yanqing Jiao,Haijing Yan
BAOR-HER system is designed to produce high‑value chemicals and hydrogen. • Porous cathode accelerates hydrogen gas detachment and enhances HER kinetics effectively. • Vanadium doping strengthens anode Lewis acidity and improves BAOR activity and selectivity. • The system delivers industrial-grade performance, featuring high product yield and low energy cost at 1.60 V @ 400 mA cm −2 . Coupling the benzylamine oxidation reaction (BAOR) with hydrogen evolution reaction (HER) offers an energy-saving route to simultaneously produce valuable benzonitrile (BN) and clean H 2 . However, its industrial implementation is hindered by insufficient current density and selectivity, stemming from sluggish gas detachment at the cathode and inadequate Lewis acidity at the anode. Herein, we present a synergistic electrode design in which a porous CoP@Ni 2 P heterojunction as cathode and V-doped CoP@Ni 2 P heterojunction as anode. As revealed by combined experimental and theoretical studies, for cathode, the porous CoP@Ni 2 P heterojunction exhibits a hydrophilic-aerophobic surface, which facilitates mass transport and H 2 detachment. Meanwhile, it presents the optimized adsorption of water and H*, boosting HER kinetics. For anode, high-valence V promotes surface reconstruction into CoNiOOH species with strengthened Lewis acidity, which optimizes the adsorption of OH* and benzylamine for elevating BAOR activity. Assembled into a two-electrode flow electrolyzer, it shows an industrial-level current density of 400 mA cm −2 at only 1.6 V with low consumption of 3.86 kW h/Nm 3 . Besides, the 97% BN yield and ∼100% HER Faradaic efficiency are achieved. This work demonstrates a spatially decoupled catalyst-design strategy for scalable co-production of green hydrogen and value-added organics. Download: Download high-res image (170KB) Download: Download full-size image
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SENSORS AND ACTUATORS B-CHEMICAL
·
2026
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IF 8.3
Hao Wu,Xieraili Maimaitiyiming
Ammonia (NH 3 ) and carbon monoxide (CO) are typical toxic gases found in industrial emissions and indoor environments, posing serious threats to human health and ecological stability. Consequently, developing sensitive, highly selective, and multifunctional gas sensors holds significant practical importance. This study constructed sensors based on semiconducting single-walled carbon nanotubes (sc-SWCNTs) through non-covalent coating with azo polymers, focusing on investigating the impact of azo compound cis-trans isomerization on carbon nanotube separation efficiency and gas sensing performance. Results indicate that both isomers exhibit excellent sc-SWCNT separation capability, yielding sc-SWCNTs with purity exceeding 99.9%; sensors fabricated from the two composite materials exhibit significant differences in transient response performance under 35 s exposure conditions. At a 1 ppm NH 3 concentration in air, the trans-PFAAB/sc-SWCNTs and cis-PFAAB/sc-SWCNTs sensors exhibited response values of 12.1% and 3.8%, respectively. When exposed to 1 ppm CO in air, their response values were 6.8% and 4.7%, respectively. This study demonstrates that the trans configuration of azo groups confers greater application advantages in azo polymer/sc-SWCNTs composite sensors, offering novel insights for developing high-performance polymer/semiconducting single-walled carbon nanotube composite sensors.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Fang Wang,Jixin Dong,Jinchi Mu,Xiaosheng An,Jiandong Chen,Shuai Leng,Ying Zhou
Hydrate-based technology offers an environmentally friendly and energy-efficient route for CO 2 capture from flue gas, but its practical application is hindered by slow kinetics, high compression energy demand and limited separation efficiency. To address these challenges, this study introduces three-dimensional (3D) nanoporous metal-organic frameworks (MOFs) as kinetic promoters for enhanced CO 2 capture from the simulated flue gas (20% CO 2 /80% N 2 ). Particularly, we functionalize 3D MIL-100(Fe) with 2D boron nitride oxide (BNO) to construct a BNO/MIL-100(Fe) 2D/3D hybrid architecture featuring substantially enhanced specific surface area and optimized pore characteristics. Compared to unmodified MIL-100(Fe), 2D Ni/Fe layered double hydroxide (Ni/Fe-LDH), graphitic carbon nitride (g-C 3 N 4 ) and one-dimensional (1D) multi-walled carbon nanotubes (MWCNTs), the BNO/MIL-100(Fe) hybrid exhibits superior kinetic promotion performance, owing to the specific surface area as high as 1001.81 m 2 /g and tailored porosity that facilitate efficient CO 2 mass transfer and provide abundant nucleation sites, thereby accelerating hydrate formation. Consequently, the induction time is shortened by approximately 51% compared with pure tetrahydrofuran in the control group and the overall CO 2 hydrate growth is significantly accelerated. Under a low operating pressure of 2.5 MPa and at 275 K, BNO/MIL-100(Fe) achieves a CO 2 storage capacity of 3.99 mmol CO 2 /mol H 2 O and a high separation efficiency of 82.57%, substantially outperforming most reported hydrate-based promoters. This work highlights the strong potential of MOF-based kinetic promoters and provides new insights into the design of advanced materials that integrate 2D modifiers with 3D nanoporous frameworks for efficient CO 2 separation.
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CERAMICS INTERNATIONAL
·
2026
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IF 6
Yang Liu,Yuanchao Xie,Yanjiao Dai,Jiayao Li,Maosen Hu,Hongtao Wang,Dan Han,Jianan Ma,Shengbo Sang
Doping with transition metal ions is an effective way to significantly enhance the performance of MOS-based gas sensors. Conventional doping strategies often lack control over morphological evolution and fail to elucidate the complex interactions between dopants and intrinsic defects. Herein, we demonstrated a rational defect-engineering approach by introducing W 6+ dopants into morphology-prefabricated layered ZnO hexagonal prisms, which triggered a controlled transformation into ultrathin nanosheets (15-20 nm thickness) while systematically changing oxygen vacancy and zinc vacancy concentrations. The concentration changes of intrinsic defect, as well as the formation energy, were confirmed through various characterization methods and DFT calculations. The gas sensitivity test results showed that the response has been significantly enhanced after doping W 6+ , which can reach 64 to 1 ppm of NO 2 , and the detection limit was as low as 200 ppb. At the same time, it has excellent stability and selectivity. Finally, the gas-sensing mechanism thoroughly explored the charge balance process caused by W 6+ doping, the functions of oxygen vacancy and zinc vacancy, and the NO 2 sensitization mechanism.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Huidong Tang,Chen Liu,Donggou Sun,Wenbo Zhang,Xiaohua Zhu,Yixing Ma,Jiacheng Bao,Kai Li,Xin Sun,Ping Ning
Fe 2 O 3 /g-C 3 N 4 accelerates Fe redox cycling for efficient H 2 O 2 activation. • g-C 3 N 4 pumps electrons to Fe sites, boosting interfacial charge transfer. • Alkaline microenvironment uniquely steers ROS pathway toward O 2 •− generation. • Process yields 93.2% NO x removal, converting NO into valuable N-resources. To overcome the challenges associated with low-temperature industrial flue gas denitrification, this study presents a highly efficient Fe 2 O 3 /g-C 3 N 4 heterogeneous Fenton catalyst synthesized via a facile impregnation approach. This composite effectively activates H 2 O 2 for deep NO x elimination. Under optimal alkaline conditions, the Fe 2 O 3 /g-C 3 N 4 system achieved a remarkable maximum NO x removal efficiency of 93.2%, while demonstrating exceptional durability by retaining over 80% efficiency across five consecutive reaction cycles. Comprehensive experimental characterization coupled with density functional theory (DFT) calculations reveal that g-C 3 N 4 serves as an electron-rich reservoir. This framework systematically accelerates the rate-limiting Fe 2+ /Fe 3+ redox cycling on the Fe 2 O 3 surface through enhanced interfacial charge transfer. Crucially, the alkaline environment uniquely steers the reactive oxygen species (ROS) evolution pathway toward the highly selective generation of superoxide radicals (O 2 •− ). These predominant O 2 •− species rapidly oxidized NO to form peroxynitrite intermediates, thereby promoting the deep conversion of NO into recoverable nitrate and nitrite products. This work provides a robust and scalable strategy for low-temperature NO ₓ purification and offers new mechanistic insights into how the reaction microenvironment regulates radical selectivity. Download: Download high-res image (294KB) Download: Download full-size image
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FOOD CHEMISTRY
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2026
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IF 10.4
Mengting Zhao,Yingxue Tang,Xiaoyu Yin,Majida AL-Wraikat,Junfeng Fan,Xiangning Chen,Bolin Zhang
This study develops MOF patches for controlled NO release in produce preservation. • MOF loading effectively protects NO donors from loss during wet-casting fabrication. • Three metal-node MOF patches enable differential NO release profiles. • Patch integrates moisture absorption, microorganism and respiration inhibition. • MOF patches significantly extend produce shelf life while reducing precursor loss. Nitric oxide (NO) preservation suffers from instability and safety issues via conventional single-exposure treatments, while wet-casting methods cause substantial NO donor loss. This study developed metal-organic framework (MOF)-mediated controlled-release patches to address these limitations. Three MOFs (Cu-MOF, Zn-MOF, Fe-MOF) with distinct pore structures were synthesized, achieving 26.9%–38.2% L-arginine loading. The resulting gelatin-polyacrylic acid sodium hydrogel patches exhibited tensile strength of 3.03–4.84 MPa and elongation at break of 131.3%–240.1%, and dissolution rates of 12.4%–17.2%. They also showed significant antimicrobial activity against E. coli, S. aureus, and A. niger . MOF loading elevated precursor utilization efficiency to 70%–82.5%. The patches achieved sustained release of H₂O₂ (8.0–9.6 mmol/g) and NO (41.7–50.6 ppm) over 12 days, extending cherry tomato shelf life to 12 days at room temperature while maintaining total bacterial levels within safe limits. This work establishes MOF-mediated controlled release for green preservative gas utilization. Download: Download high-res image (189KB) Download: Download full-size image
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Nanoscale
·
2025
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IF 5.1
Shenglong Wu,Lixiong Du,Yajing Wang,Kui Shen,Liyu Chen,Yingwei Li
The reverse water-gas shift (RWGS) reaction provides an important pathway for converting CO2 to CO, which can then be used to produce high-value chemicals through Fischer-Tropsch synthesis. Metal oxide materials, especially Fe2O3, offer considerable potential for use in RWGS reaction at high temperatures, but their catalytic performance is hindered by the inadequate activation and dissociation capabilities of H2 at low temperatures. Herein, we report the introduction of Fe4 with high H2 activation capability near Fe2O3, which shows a synergistic effect and achieves excellent activity and selectivity in RWGS reaction at low temperatures. Fe2O3 nanoparticles and Fe4 clusters supported on carbon (Fe2O3-Fe4/C) were prepared by KCl-assisted pyrolysis of NH2-MIL-88B(Fe) precursors. Fe2O3-Fe4/C delivers a remarkable CO selectivity of 99.4% and a space-time yield of 15.2 μmolCO gcat−1 s−1 at 350 °C and atmospheric pressure. In situ diffuse reflection infrared Fourier-transform spectra and density functional theory calculations demonstrate that the introduction of Fe4 clusters can activate H2 and significantly lower the reaction energy barrier of CO2 hydrogenation on Fe2O3 sites, thus boosting the RWGS performance at low temperatures.
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PLoS One
·
2025
·Vol. 20
·期 10
·e0334495
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IF 2.6
Yujia Xiong,Jun Xin,Chao Su,Lei Liang,Qinghua Xiao,Haifeng Ye,Zilai Mei
With the extensive exploitation of shale gas fields in southern Sichuan, China, the Weiyuan Area – a key production zone within this region – has experinced a growing gas well plugging problem, which significantly hampers production efficiency. This study presents a comprehensive analysis of plugging problems in this area. Plugging samples were obtained from typically affected gas wells and subjected to a suite of analytical techniques. Results indicated that plugging materials were predominantly inorganic, primarily comprising iron-based impurities and mineral scale deposits, while organic components—present in minor proportions—primarily composed of long-chain alkanes. The formation of these plugs is attributed to downhole corrosion, high-salinity formation water, and complex chemical interactions occurring within the wellbore. In response, specialized plugging removal agents were developed: an organic composite acid-organic solvent system achieved up to 98% dissolution efficiency for iron oxide-dominated plugs; a chelating agent based on CDTA was optimized for iron sulfide-based plugging; and the DTPA-based system exhibited superior dissolution efficiency for barium sulfate/calcium carbonate scale deposits. This research provides a scientific basis for effectively mitigating plugging issues in comparable shale gas fields.
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INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
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IF 5.4
Shaohui Huang,Jin Li
In order to solve the problems of insufficiently rapid response and recovery and poor moisture resistance when zinc oxide is used as a gas sensitive material, a flexible frame material with hydrophobicity, ZIF-8, was introduced to modify the surface of ZnO, and then doped Ag nanoparticles, which can be electron sensitized with ammonia, to obtain Ag modified ZnO@ZIF-8 nanoparticles. At room temperature (RT, ∼25 °C), the response time of ZnO, ZnO@ZIF-8, and Ag modified ZnO@ZIF-8 nanoparticles to 500 ppm ammonia is 74.3 s, 20.2 s, and 8.0 s, and the recovery time is 36.0 s, 23.1 s, and 16.8 s, respectively. The fitting detection limit of Ag modified ZnO@ZIF-8 nanoparticles for ammonia was 83 ppm. Compared with pure ZnO, the moisture resistance of ZnO@ZIF-8 and Ag modified ZnO@ZIF-8 was significantly improved after coating with ZIF-8.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Wanwan Wu,Linjie Song,Yinqi Qiao,Yan Bai,Xue Liu,Haiyan Li,Dongbin Dang
Developing efficient photocatalysts for the conversion of CO 2 into value-added chemicals is considered as an ideal strategy to handle the energy crisis and environmental pollution. Among the numerous candidate materials, lead-free perovskite Cs 3 Bi 2 Br 9 has attracted significant research interests in CO 2 photoreduction because of its excellent reducing power and controllable product selectivity. In this work, we developed a novel Cs 3 Bi 2 Br 9 /Ta 2 O 5 composite via the in-situ growth of Cs 3 Bi 2 Br 9 on the porous Ta 2 O 5 , which exhibits excellent dual functionalities of CO 2 capture and conversion. The optimized sample T2 achieved a CO photoreduction yield of 413.45 μmol g −1 h −1 without adding any sacrificial agents, which is 4.7 and 22.3 times higher than that of pure Cs 3 Bi 2 Br 9 and Ta 2 O 5 , respectively. The markedly improved photocatalytic performance arises from a type-II heterojunction charge transfer pathway generated between Cs 3 Bi 2 Br 9 and Ta 2 O 5 , which drives the highly efficient separation and transfer of charge carriers, as confirmed by the enhanced photocurrent response and quenched PL intensity. Furthermore, the achieved composite also exhibited remarkable stability, as evidenced by the well-maintained structural integrity of the material after a 24-hour cycling test. This study provides key insights for developing novel lead-free perovskite-based photocatalysts, which has significant scientific and application value for achieving carbon neutrality goals.
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