JOURNAL OF HAZARDOUS MATERIALS
·
2026
·
IF 10.6
Kun Lang,Yuanyingxue Gao,Panzhe Qiao,Xudong Xiao,Mingyang Liu,Bin Wang,Xinrui Li,Wei Wu,Jingping Ge,Huiyuan Meng,Baojiang Jiang
Air calcination stabilizes LaMnO 3 but can promote particle coarsening and oxidation-driven Mn-valence elevation, reducing Mn e g -electron availability for nitrite-to-ammonia conversion. Here, B-site Ni regulation yields a more dispersed LaMnO 3 nanoperovskite, LaMn 0.95 Ni 0.05 O 3 (LMNO), while coupling oxygen-defect formation with Mn-valence rebalancing without disrupting the LaMnO 3 -type lattice. Combined structural and spectroscopic analyses show stronger oxygen-defect signatures, enhanced lattice-oxygen reducibility, lower average Mn valence, and altered Mn-centered coordination after Ni incorporation. These changes suggest electron compensation of neighboring high-valent Mn species and a more electron-rich Mn–O environment for nitrite activation and hydrogenation. In situ infrared spectroscopy and density functional theory calculations further indicate stepwise intermediate hydrogenation, favorable H 2 O dissociation and initial NO 2 stabilization at Ni sites, Ni 3d and Mn 3d/O 2p states near the Fermi level, and more favorable overall conversion thermodynamics at Ni-regulated Mn sites. LMNO delivers an NH 3 yield rate of 8996 μg h −1 cm −2 with 97.3% Faradaic efficiency and remains stable for 400 h. Downstream acid trapping enables crystalline NH 4 Cl recovery, while tests with pretreated landfill leachate show a shift in nitrogen speciation toward NH 4 + and reduced seedling-growth inhibition.
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APPLIED THERMAL ENGINEERING
·
2026
·
IF 7.5
Bonan Ma,Wentao Jia,Qinlong Yang,Jiuhong Pan,Xingsen Yang,Enhui Yang,Yanjun Qiu
A thermally insulating photothermal superhydrophobic coating (TIPSC) was developed. • Skeleton-supported hierarchical structure enables superior superhydrophobicity. • TIPSC achieves >95% solar absorptance and 49 °C under 1-sun illumination. • Ice adhesion strength reduced to 19.1% and freezing delayed to 128 min. • TIPSC enhances skid resistance and retains durability after wheel abrasion. Ice formation on road surfaces threatens traffic safety and incurs considerable economic costs. Although photothermal superhydrophobic coatings offer a promising solution, they typically suffer from rapid heat dissipation into the substrate and poor mechanical durability, which restrict their practical application on asphalt roads. To address these issues, we report a mechanically durable thermally-insulating photothermal superhydrophobic coating (TIPSC) built around a two-layer architecture. The coating features a “skeleton-supported” hierarchical micro/nanostructure composed of multi-walled carbon nanotubes (MWCNTs) and modified silicon carbide (SiC) particles, integrated with a glass fiber-reinforced epoxy resin insulation underlayer. This unique architecture imparts superior superhydrophobicity to the surface, characterized by a water contact angle of 154.9° and a sliding angle of 3.3°. Under 1.0-sun illumination, the TIPSC surface stabilized near 49 °C. Notably, the insulation layer effectively minimizes downward heat dissipation, extending the cooling time by 300 s compared to non-insulated coatings. Owing to this combination, droplet freezing on TIPSC was postponed to about 128 min (2.76 times that of pure expoxy) and complete photothermally driven ice removal was achieved in 139 s. Furthermore, the superhydrophobicity of TIPSC reduces ice adhesion strength to only 19.1% of the control group, significantly weakening the ice-to-surface bond. Additionally, the TIPSC exhibits exceptional chemical stability and durability, maintaining its superhydrophobicity after prolonged UV exposure, immersion in strong acid/alkali/saline solutions, and a 10-h wheel tracking abrasion test. Owing to the skeleton-supported surface structure, the coating also slightly enhances the skid resistance of the pavement compared to uncoated surfaces. This research provides a facile and effective strategy for fabricating durable, energy-efficient anti-icing coatings for harsh environments.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Jianlin Zhao,Xiaohui Ma,FanShuo Meng,Xu An,Mengyao Ren,Songbo Li,Ping Bai
Sulfur vacancies modulate d‑orbitals to tune the adsorption‑desorption equilibrium of hydrogen intermediates. • A noble‑metal‑free V s ‑NiCo 2 S 4 /CdSe heterojunction is fabricated for efficient photocatalytic H 2 evolution. • Schottky heterojunction formation and its photocarrier‑separation mechanism are deeply explored. Achieving the adsorption and desorption equilibrium of H species (H-Ads/Des) is crucial for accelerating hydrogen evolution kinetics in photocatalytic H 2 production. However, the precise manipulation of H-Ads/Des behavior remains a critical bottleneck. Herein, we propose a strategy that uses S vacancies (V s ) to regulate d orbitals and thereby optimize H-Ads/Des in NiCo 2 S 4 -modified CdSe photocatalysts (V s -NiCo 2 S 4 /CdSe). Experimental results and theoretical calculations demonstrate that the S vacancies in V s -NiCo 2 S 4 modulate the Co 3d orbitals. Specifically, as the S-vacancy concentration increases, the Co d band gradually broadens and its center shifts away from the Fermi level, enabling precise control over H-Ads/Des kinetics on V s -NiCo 2 S 4 /CdSe. Ultimately, V s -NiCo 2 S 4 /CdSe with an appropriate amount of V s exhibits a remarkable photocatalytic hydrogen evolution rate of 8387.92 μmol·g −1 ·h −1 . This work elucidates how defect engineering regulates H-Ads/Des dynamics and provides insights into the design of highly efficient heterojunction photocatalysts. Download: Download high-res image (124KB) Download: Download full-size image
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CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Tao Zhou,Jingjing Chen,Zenghui Mai,Haobo Zhang,Xiaoli Wu,Wenpeng Li,Jingtao Wang
Unraveling molecular transport behaviors in extremely confined two-dimensional (2D) nanochannels, especially the impact of sub-nanometer interlayer spacing, is essential for designing high-precision separation membranes. However, it remains a challenging issue due to the complex physical and chemical structures of conventional 2D lamellar membranes. Herein, vertically aligned graphene oxide (GO) membranes featuring stable and long-range nanochannels are constructed. Significantly, the interlayer spacing is precisely tuned from 0.76 to 0.98 nm by controlling relative humidity with saturated salt solutions. It is demonstrated that, for these GO membranes, organic solvent permeance generally increases monotonically with increasing interlayer spacing. In stark contrast, water transport exhibits an anomalous non-monotonic dependence, with a minimum permeance of 0.52 LMH bar −1 at a critical interlayer spacing of 0.87 nm, significantly lower than 4.35 and 3.46 LMH bar −1 at 0.81 and 0.92 nm, respectively. This phenomenon originates from the confinement-induced reconstruction of hydrogen-bond networks into an ice-like ordered structure at the critical spacing, which markedly elevates the diffusion energy barrier, thus leading to the lowest permeance. This work reveals the molecular transport behaviors under extreme confinement, providing novel theoretical insights into confined molecular transport.
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CHEMISTRY OF MATERIALS
·
2026
·
IF 7.1
Li Changhao,Li Dongqi,Wang Juan,Li Zhongpeng,Li Shihui,Zeng Weihao,Mu Shichun
Direct
regeneration of spent layered cathodes is a promising strategy
for sustainable lithium-ion battery recycling, yet their practical
implementation is often restricted by the severe interfacial and structural
degradation of Ni-rich layered cathode materials. Under alkaline conditions,
K 2 S 2 O 8 generates reactive sulfate
and hydroxyl radicals, which partially decompose PVDF-derived interfacial
residues and oxidize the reduced surface Ni species. These reactions
attenuate the fluorinated surface coverage and suppress rock-salt-like
reconstruction, thereby producing a more structurally ordered preactivated
surface. After subsequent high-temperature sintering, the regenerated
LiNi 0.83 Co 0.12 Mn 0.05 O 2 (NCM83) exhibits a well-restored layered structure, delivering a
high discharge capacity of 205.3 mAh g –1 and a capacity
retention of 87.8% after 300 cycles. Without alkali-activated persulfate
preoxidation, the regenerated NCM cathode presents higher residual
structural disorder and inferior electrochemical performance, retaining
only 72.2% of its capacity after 300 cycles. This work demonstrates
that radical-assisted surface preactivation is an effective route
to overcome relithiation limitations in direct cathode regeneration.
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APPLIED CATALYSIS A-GENERAL
·
2026
·
IF 4.8
Huimin Luo,Jinming Yan,Deyun Xu,Jia Guo,Mengjie Fan,Longtian Kang,Qingfu Sun
P/N-type Z-scheme heterojunction of Co-PDI/Cu-CuTCPP is prepared by a simple way. • Multifunctional photocatalytic activity of is achieved for POE, PHE and CO 2 RR. • Catalytic activities for POE and CO 2 RR increase by ~3 and ~12 times, respectively. • The overall CO 2 RR in the aqueous phase can be achieved to yield O 2 , CO and CH 4 . • It is found that Co-O-Cu linkage exists and has important role in photocatalysis. Developing a multifunctional system for photocatalytic water splitting (PWS) and carbon dioxide reduction reaction (CO 2 RR) is a promising approach to achieve the green carbon cycling. Here, the p/n-type Z-scheme heterojunction (Co-PDI/Cu-CuTCPP) between cobalt perylene diimide nanorods (Co-PDI) and copper porphyrin metal-organic framework nanosheets (Cu-CuTCPP NSs) is constructed via a cetyltrimethylammonium bromide (CTAB)-assisted physical method. Systematical characterizations prove the existence of Co–O–Cu linkage, π-π interaction, and electrostatic forces between Co-PDI and Cu-CuTCPP. The effect of Co-PDI/Cu-CuTCPP ratio on the optical, photoelectric and electrical properties, as well as multifunctional photocatalytic activity is investigated and analyzed. Under visible light irradiation (λ > 420 nm), the Co-PDI/Cu-CuTCPP composites exhibit the photocatalytic activities of water splitting to H 2 and O 2 , as well as CO 2 RR to CO and CH 4 , respectively. After optimizing photocatalytic system, the oxygen evolution rate of 18.7 mmol·g −1 ·h −1 is reached, which is a 4.4-fold compared that of pure Co-PDI. The photogenerated electron conversion efficiency during CO 2 RR is 12.9-fold higher in Co-PDI/Cu-CuTCPP than in Cu-CuTCPP. Meanwhile, the overall CO 2 RR in the aqueous phase can be achieved without H 2 production. Mechanism studies reveal the photoelectrical conversion process, and confirm the synergistic role between Co-PDI and Cu-CuTCPP. Download: Download high-res image (310KB) Download: Download full-size image
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SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Mengdi Lu,Xutong Yang,Ming Lin,Mingze Ma,Ruizhi Fan,Wei Peng
Localized surface plasmon resonance (LSPR) fiber-optic sensors based on silver nanoparticles (AgNPs) offer great potential for label-free biosensing due to their high sensitivity and real-time detection capabilities. However, their application is hindered by susceptibility to oxidation and poor self-assembly caused by surface ligands. In this work, a high-performance LSPR fiber-optic biosensor was constructed based on PS-b-P4VP diblock copolymer (BCP) templated self-assembly combined with a competitive ligand exchange strategy. Compact citrate ligands were used to completely replace bulky tannate ligands on the AgNP surface, which significantly optimized the self-assembled morphology and sensing performance. The effects of self-assembly time, BCP concentration, solution pH and AgNP diameter on the plasmonic sensing performance were systematically investigated and optimized. Finite element simulation was carried out to reveal the regulatory mechanism of interparticle plasmon coupling and near-field enhancement for sensing sensitivity. Under the optimal conditions, the sensor achieved a high refractive index sensitivity of 590 nm/RIU and a nanoparticle surface coverage of 18.3%. The sensor also showed favorable storage stability in aqueous solution. For the label-free detection of human IgG, the sensor presented a linear response in the range of 0–10 μg/mL with a low detection limit of 0.1 μg/mL. This work provides an effective and universal strategy for the fabrication of high-stability and high-sensitivity AgNP-based LSPR fiber sensors, and promotes their application in the field of rapid biochemical detection.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Wei Yi,Chengtao Lu,Junxiong Xiao,Naixia Lv,Duanyong Zhou,Pei Zhang,Xiaosi Qi,Lanhua Yi
Bimetallic MOF materials (FeCo-MOF) were prepared with a simple hydrothermal method. • MXene/HCNTs and FeCo-MOF have synergistic effects on electrocatalytic NO 2 − oxidation. • This sensor exhibits low detection limit (0.154 μM) and wide linear range for NO 2 − . • MXene/HCNTs/FeCo-MOF/GCE has excellent selectivity, reproducibility and stability. • Successfully applied to analyze NO 2 − in foods (milk, sausage, and bottled water). Nitrite is a common food additive, however, studies have shown that long-term intake of large amounts of nitrite can pose significant health hazards to humans, so the accurate determination of nitrite content in food is of great importance. In this paper, an electrochemical sensor exhibiting remarkable sensitivity and selectivity for NO 2 − detection was successfully constructed using a composite material (MXene/HCNTs/FeCo-MOF), using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDS) to characterize the MXene/HCNTs/FeCo-MOF, and investigating the electrocatalytic performance of MXene/HCNTs/FeCo-MOF-modified electrode for NO 2 − by cyclic voltammetry (CV) and differential pulse voltammetry (DPV), the results revealed MXene/HCNTs/FeCo-MOF/GCE exhibited both an extensive linear range (0.5–300 μM) and a minimal detection limit (0.154 μM). Meanwhile, the modified electrode was also successfully realized for detecting NO 2 − in food (milk, sausage and bottled water), which has potential applications. Download: Download high-res image (101KB) Download: Download full-size image
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LANGMUIR
·
2026
·Vol. 42
·期 33
·24320-24334
·
IF 4.4
Teng Fei,Zhong Guifang,Song Siying,Xue Mingyu,Li Hui,Xu Wenxuan,Zhao Shiyue,Xu Peng,Hao Dejun
The fall webworm Hyphantria cunea (Lepidoptera: Erebidae) is an invasive pest that severely damages
forest resources and disrupts ecological stability. Chlorantraniliprole
(CAP) is widely applied to control this pest, yet conventional formulations
exhibit poor foliar retention, droplet spreading, and rainfastness.
To address these limitations, we prepared tannic acid (TA)-modified
mesoporous silica nanoparticles (MSN) loaded with CAP (TA@CAP@MSN)
to enhance insecticidal efficacy and foliar adhesion. TA@CAP@MSN were
uniform mesoporous nanospheres with 162.95 m 2 /g specific
surface area, 0.241 cm 3 /g pore volume, 27.83% drug loading,
and sustained-release performance. After 72 h of exposure, the LC 50 of TA@CAP@MSN against third-instar H. cunea was 2.130 mg/L, corresponding to a 3.66-fold increase in toxicity
relative to technical CAP. When sprayed on Populus × euramericana leaves, this
nanoformulation achieved 62.33% larval mortality at 120 h. Notably,
TA@CAP@MSN exhibited superior retention, wettability, and rainfastness
on three representative host plants with distinct leaf surface properties.
After simulated rainfall, mortalities under LC 50 /LC 80 were significantly higher than those of pure CAP and CAP@MSN.
Sublethal studies revealed that TA@CAP@MSN initially modulated key
detoxification and antioxidant enzymes, followed by suppression of
superoxide dismutase (SOD) and carboxylesterase (CarE) activities,
consistent with altered antioxidant and detoxification responses.
This tannic-acid-functionalized mesoporous silica nanocarrier provides
an interfacial engineering strategy to construct high-efficiency nanopesticides
against H. cunea .
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Food Chemistry-X
·
2026
·
IF 9.2
Xiaolan Wu,Mingyu Li,Shikui Zhang,Beibei Feng,Yulu Liu,Feiyan Gu,Li Yin,Wenwen Li
Flavonoids are important secondary metabolites that contribute to the nutritional quality and sensory characteristics of apricot fruit; however, their variation across cultivars and fruit tissues remains insufficiently characterized. Following an initial survey of total flavonoid content across 123 apricot accessions, four cultivars with contrasting levels were selected for UPLC–MS/MS profiling of the peel and flesh. In total, 760 flavonoid metabolites were identified and quantified, most of which accumulated at higher levels in the peel, indicating that the peel is a major flavonoid-rich tissue in these cultivars. Multivariate analysis identified 35 and 34 key differentially accumulated metabolites in the flesh and peel, respectively. Cultivar-specific differences involved distinct flavonoid classes: ‘Luotuohuang’ (LTH) was enriched in proanthocyanidin A2*, whereas ‘Zixing’ (ZX) preferentially accumulated rhamnosylated and acetylated flavonoid glycosides. These findings characterize tissue- and cultivar-specific flavonoid variation and highlight valuable flavonoid resources for apricot breeding and peel by-product utilization.
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Journal of Environmental Chemical Engineering
·
2026
·
IF 7.5
Junwei Yao,Qian Wang,Chunxin Wang,Hong Qi,Qingshan Shi,Jingxia Liu,Jin Feng,Ping Yang,Manli Yu,Xiaobao Xie
Attributing to poor effectiveness and inadmissible toxicity, fungicide is a tendency to restricted in the field of agriculture. Therefore, it was a prospective scene to exploit the inventive antifungal active ingredient delivery system for improving biological activity and environmental safety. The excellent adhesive fungicide formulation was endowed with an effective tactic to promote wettability and bioavailability. The elemental intention of this study was to illuminate synergistic mechanisms of dopamine (DA) coated prochloraz (Pro)-polycaprolactone (PCL) nanospheres on prominent roles of improving antifungal activity and environmental safety. Apart from enhancing wettability and anti-photodegradation ability, Pro-PCL-DA nanospheres was also able to reduce the burst release rate and prolong release duration for the phenolic hydroxyl group in DA. The Pro-PCL-DA nanospheres was charged with the superior antifungal activity against Fusarium oxysporum . The predominant antifungal activity of Pro-PCL-DA nanospheres was predominantly ascribed to superior transmembrane transport capacity, inducing excessive reactive oxygen species and enhancing membrane permeability. The environmental safety assay indicated that Pro-PCL-DA nanospheres could effectively reduce the acute toxicity of Pro to adult zebrafish and Eisenia fetida . Overall, these findings indicated that DA coated Pro-PCL nanospheres was potential route to provide a bright platform for improving fungicide utilization with the long-term sustainable development of agriculture.
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JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Zhiguang Qian,Yanpeng Dong,Yu Zhu,Like Yue,Shixue Wang
Polydimethylsiloxane (PDMS) is a promising fluorine-free hydrophobic material for proton exchange membrane fuel cell (PEMFC) microporous layers (MPLs) owing to its low surface energy, environmental compatibility, and low-temperature curing. However, weak adhesion between low-loading PDMS and carbon materials limits the structural stability, especially under hydrothermal and oxidative conditions. Here, 3-aminopropyltriethoxysilane (APTES) is used to modify carbon black and enhance the carbon-PDMS interfacial interaction. An APTES-modified 5 wt% PDMS-MPL is compared with unmodified 5 wt% PDMS-MPL and conventional 20 wt% polytetrafluoroethylene (PTFE)-MPL. Hot-water and Fenton oxidative aging, combined with microstructural, pore, hydrophobicity, X-ray photoelectron spectroscopy (XPS), and single-cell electrochemical analyses, are used to evaluate aging-induced degradation and transport evolution. APTES modification reduces the ultrasonic mass loss rate from 11.67% to 5.17%, indicating improved interfacial stability. After aging, the modified MPL maintains a more stable pore structure and hydrophobicity and shows a mass-transfer resistance of 0.194 Ω cm 2 after Fenton aging. In contrast, unmodified PDMS-MPL exhibits polymer migration, local delamination, and oxidation, whereas PTFE-MPL retains a relatively stable pore structure but shows stronger high-current mass-transport limitations. These results demonstrate that APTES interfacial modification improves the structural stability and aging resistance of low-loading fluorine-free PDMS-based MPLs.
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