JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Yandong Che,Qianpeng He,Aoyun Yuan,Jie Zhou,Jiacheng Ding,Tõnu Pullerits,Qian Zhang,Yanqiu Yang,Wenjie Li,Peng Song
Integrating pollutant detection and degradation into a single material platform is highly desirable for the efficient treatment of dye-contaminated wastewater. However, simultaneously achieving sensitive detection and efficient photocatalytic activity remains challenging because these functions involve distinct interfacial processes. In this work, an Ag NPs@Cu-V 2 O 5 hybrid was prepared through wet-chemical synthesis and calcination of Cu-V 2 O 5 , followed by ultrasonic coupling with preformed Ag nanoparticles. Cu incorporation modulated the local electronic environment of V 2 O 5 , while the supported Ag nanoparticles provided plasmonic SERS-active sites. XPS binding-energy shifts were consistent with interfacial electronic redistribution, FDTD simulations revealed pronounced local-field amplification around the Ag nanoparticles, and energy-level analysis indicated accessible interfacial charge-transfer pathways under 532 nm excitation. Using colorless, non-resonant 4-MBA as a control probe, the hybrid produced a higher Raman response than the Ag NP reference under equivalent Ag loading, indicating that the enhancement was not solely dependent on the molecular pre-resonance behavior of MB. The hybrid enabled MB detection down to 1 × 10⁻⁹ mol L⁻¹ , with good spatial uniformity and approximately 80% signal retention after 28 days. After correction for dark adsorption, it achieved an MB degradation efficiency of 82.3% after 60 min of visible-light irradiation and exhibited higher photocatalytic activity than pristine V 2 O 5 and Cu-V 2 O 5 . These results demonstrate a plasmonic–semiconductor platform that integrates SERS sensing and photocatalytic remediation through Ag-induced local-field amplification, Cu-related electronic modulation, and Ag/Cu-V 2 O 5 interfacial interactions.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Yongtang Wang,Lan Chen,Zhanfeng Zhou,Yuhan Liang,Tong Zhang,Rongbang Sun,Yueling Tian,Yang Liu,Yifu Fu,Huihan Wang,Guang Feng,Jianhua Miao,Xinhui Zheng,Kai Yang
This work fabricated FeOOH/arginine composite coatings firmly bonded onto Mg alloy substrates, which greatly enhanced the corrosion resistance of biodegradable magnesium implants. • The composite coating achieves NIR and TME dual-responsive controlled NO release, and the PTT-CDT-NO synergistic therapy suppresses core oncogenic signaling pathways to induce efficient osteosarcoma cell death, while low-concentration NO facilitates anti-inflammation and angiogenesis. • By utilizing the concentration-dependent bidirectional effects of NO, the constructed multifunctional coating offers a simple and low-cost design strategy for intelligent magnesium alloy implants toward clinical postoperative bone tumor therapy. Osteosarcoma is prone to recurrence after surgery and is accompanied by extensive bone defects. Traditional treatment methods struggle to achieve tumor suppression and bone repair simultaneously. Degradable magnesium alloys are ideal bone implant materials, yet they have drawbacks, including overly rapid degradation and a lack of anti-tumor activity. Although nitric oxide (NO) shows promise for its anti-inflammatory and regenerative properties, its clinical translation is limited by its short half-life and uncontrolled release, which do not meet the postoperative requirements for osteosarcoma. Herein, in this work, a porous PEO (plasma electrolytic oxidation) coating was first prepared on Mg alloys to improve corrosion resistance, and then Fe 2+ and L-arginine were simultaneously introduced to synthesize the FeOOH-Arg coating in situ, which was then coated with polydopamine to obtain a responsive composite coating. This composite coating achieved interfacial bonding and seals the PEO porous structure through covalent bonding, and can realize the controllable release of NO and reactive oxygen species (ROS) with near-infrared light irradiation and tumor microenvironment, not only synergistically combining the photothermal therapy (PTT) and chemodynamic therapy (CDT) to induce the apoptosis of osteosarcoma cells efficiently, but also regulate the immune microenvironment and promote angiogenesis both in vitro and in vivo. This work offers a novel, feasible, multifunctional modified magnesium alloy implant for integrated anti-tumor and bone-regeneration treatment following osteosarcoma surgery.
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GEOPHYSICAL RESEARCH LETTERS
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2026
·Vol. 53
·期 14
·e2026GL122763
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IF 5
Yuanjing Li,Liangliang Zhang,Fabin Pan,Xiaojing Lai,Xiang Wu,Feng Zhu
Mercury is one of the few terrestrial planets in the solar system with a magnetic field, yet the energy source to power its core dynamo remains unclear to date. Si, C, and possibly H are the top candidate light elements for its liquid core. Here, we showed experimentally that Si, C, and H in Fe-Si-C and Fe-Si-C-H liquids share a simultaneous solubility at 9–21 GPa, 1,400°C–2,200°C, and this solubility decreases with decreasing temperature. When exceeding the simultaneous solubility, light elements will exsolve from the Fe melt as elemental phases such as diamond, graphite, silicon, and H 2 . We infer that if Mercury had an early liquid core primarily composed of saturated Fe-Si-C-(H) liquid, subsequent cooling would lead to continuous light element exsolution in its liquid core. The gravitational potential released by the exsolved light elements can drive the compositional convection and power its long-term core dynamo.
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RSC Advances
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2026
·Vol. 16
·期 11
·10243-10254
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IF 6.1
Wenhao Liu,Yanfeng Zhu,Zhihao Liu,Jianxia Gou
Marine corrosion poses a critical threat to the safety of offshore oil and gas facilities. To address the intrinsic drawbacks of pristine TiO2, ZnS/CdS/Ti3+-TiO2 nanotube composites were rationally fabricated via a synergistic strategy combining electrochemical anodization and successive ionic layer adsorption and reaction (SILAR) techniques. Structural and optical characterization confirmed that the as-synthesized composites feature a well-constructed cascade band alignment, which efficiently mitigates the recombination of photogenerated electron–hole pairs. Accordingly, the optimized photoanode delivered a high photocurrent density of 279 µA cm−2. When coupled with 316 stainless steel (316 SS), the composite exhibited a pronounced photo-induced potential of −0.89 V (vs. SCE), achieving a remarkable performance enhancement over pristine TiO2. This enhanced photocathodic protection originates from the synergistic interplay between Ti3+ self-doping and the ZnS/CdS heterojunction: Ti3+ self-doping introduces abundant electron donors to enhance the electrical conductivity of the composite, whereas the ZnS/CdS heterojunction broadens the visible-light absorption range and accelerates the separation and directional migration of photogenerated charge carriers.
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MACROMOLECULES
·
2026
·
IF 5.2
Chenzhi Yao,Qike Sun,Hui Deng,Gongyang Chen,Heng Xia,Zhengjiang Liu,Timur Borjigin,Jiansong Yin,Jacques Lalevée,Yangyang Xu
Photoinduced radical chemistry is pivotal for synthesizing polymeric materials under light irradiation. In this study, carbazole moieties were incorporated at distinct positions within the aza-boron-dipyrromethene (aza-BODIPY) scaffold, yielding three novel push–pull dyes that function as high-performance photoinitiators for the free radical polymerization of acrylates upon exposure to visible-light LED irradiation. When combined with iodonium salts or amines as co-initiators, these aza-BODIPY derivatives form efficient two-component photoinitiating systems that exhibit outstanding initiation performance. Notably, distinct polymerization kinetics were observed for two benchmark acrylate monomers. Through a combination of experimental investigations and theoretical calculations, a comprehensive photochemical mechanism has been elucidated. Furthermore, these newly developed carbazole-substituted aza-BODIPY-based photoinitiating systems enable the fabrication of high-resolution three-dimensional macroscale architectures via 3D printing. This work advances the fundamental understanding and practical application of visible-light-induced free radical polymerization.
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INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Mingyang Gu,Wenjun Fan,Haiyou Liu,Rui Ma,Junhao Ma,Rongxing He,Lei Zhou,Ming Li
Organic–inorganic hybrid metal halides (OIHMHs) have garnered significant attention for their exceptional photophysical properties and structural diversity. Zero-dimensional (0D) metal halides are particularly promising for anticounterfeiting and solid-state lighting (SSL) due to their outstanding optical properties and stability. However, achieving precise control over the synthesis of low-dimensional OIHMHs (LD-OIHMHs) remains challenging. This study reports the controlled synthesis of Cd2+-based OIHMHs, achieving structural dimensionality reduction from 1D to 0D through the strategic embedding of hydrated protons. The 0D structure exhibits an enhanced quantum confinement effect, leading to highly efficient luminescence. Furthermore, Sb3+ doping was employed to incorporate optically active centers, resulting in broadband yellow photoluminescence with a large Stokes shift originating from triplet self-trapped excitons in Sb-centered octahedra. The different luminescence properties of these Cd2+-based materials were successfully applied in anticounterfeiting. Additionally, a high-performance white light-emitting diode (WLED) was fabricated using the 0D 10% Sb3+-doped Cd2+-based material as a phosphor, achieving a color rendering index of 90.8 and a luminous efficiency of 43 lm/W, confirming its potential for SSL applications. This work demonstrates an effective strategy for the dimensional and optical engineering of LD-OIHMHs.
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PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
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2026
·
IF 3.5
Bekena Fekadu Tadesse,Kuo Dong-Hau,Duresa Lalisa Wakjera
Photocatalysis is one of the latest and the most promising technologies to remove organic pollutants from the environment. In this work, novel Nb/Co-codoped MoOS photocatalyst was prepared by a simple chemical precipitation method and thereafter the as-prepared photocatalysts were systematically characterized by different techniques. The photocatalytic performance of the as-prepared samples was surveyed by the degradation of methyl orange (MO), rhodamine B (RhB), and methylene blue (MB) dyes under visible light irradiation. All the codoped photocatalysts exhibited enhanced photocatalytic activity than pure and mono doped samples for degradation of these dyes with the highest degradation efficiency observed for the sample with 10 % Nb amount, which degrade 94.4 % of MO, 97.1 % of RhB, and 99.7 % of MB within 150, 20, and 40 min irradiation time, respectively. The HPLC test further confirmed the degradation of these dyes. The rate constants of MO, RhB, and MB removal in the photodegradation process over 10Nb-10Co-MoOS were determined. The enhanced photocatalytic activity of the sample was due to high charge separation and inhibition of recombination of photogenerated electron-hole pairs. The scavenger studies indicate that the primary active species in the photocatalytic process for MO and MB were superoxide radicals and for RhB were hydroxyl radicals, indicating 10Nb-10Co-MoOS had be widely used for different dye degradation. The catalyst revealed excellent recyclability and stability even after three runs. Finally, a reasonable reaction mechanism was proposed.
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MATERIALS CHEMISTRY AND PHYSICS
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2026
·
IF 5.2
Donglin Lu,Yuqin Shen,Zibin Zeng,Bocong Feng,Haidong Wu,Huachen Cui,Shanghua Wu
In this study, a novel inorganic surface modification strategy was proposed by coating silicon nitride (Si 3 N 4 ) powders with potassium chloride (KCl) to enhance their optical and rheological behavior for high-precision digital light processing (DLP) additive manufacturing. The influence of KCl coating content (0–8 wt%) on the photopolymerization, rheological properties, densification behavior, microstructure, and mechanical performance of Si 3 N 4 ceramics was systematically investigated. The results revealed that molten KCl at 900 °C effectively wet and redistributed on the Si 3 N 4 surface, forming a uniform KCl/SiO 2 composite coating. This coating reduced the refractive index mismatch at the particle–resin interface, suppressed Mie scattering, and significantly increased the curing depth while minimizing lateral over-curing. The optimal coating condition (3 wt% KCl, 900 °C, 5 h) achieved enhanced curing depth, improved slurry flowability, and stable dispersion without excessive agglomeration. However, excessive coating (≥ 5 wt%) intensified surface oxidation and led to Si 2 N 2 O formation, resulting in porous microstructures and severely reduced mechanical strength. The bending strength declined from 697 MPa (0 wt%) to 97 MPa (8 wt%). By contrast, the 3 wt% KCl-coated powder yielded Si 3 N 4 components with relatively high density, smooth surfaces, and excellent dimensional fidelity after sintering. These findings demonstrate that ionic-salt coatings offer a controllable and scalable approach to tuning light–matter interactions and interfacial behavior in ceramic slurries, paving the way for the additive manufacturing of complex Si 3 N 4 structures with superior precision.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Kexu Wang,Nianming Jiao,Bingtong Chen,Chunshan Li,Hui Wang,Yan Bai
Electric field enables challenging chemical reactions to proceed efficiently under mild conditions. Herein, this external field was proposed to intensify cracking of alkanes for the production of light olefins, a typical reaction requiring high temperatures. Composite conductive materials were prepared by physically mixing anatase-type titanium dioxide (A-TiO 2 ) and HZSM-5. It was demonstrated that electric-assisted treatment induced significant microstructural changes of the composite catalyst. XPS and EPR revealed that Ti 4+ was converted into Ti 3+ , accompanied by oxygen vacancy formation, the amount of which increased with the applied power. H/D exchange experiments confirmed that electric field could induce “proton hopping”, increasing the amount of medium-strong Brønsted acid sites. DFT calculations and in situ infrared spectroscopy indicated that the electric field promoted the adsorption of n -hexane on the catalyst, accelerated the charge transfer between them. These synergistic effects facilitated n -hexane conversion while promoting monomolecular cracking pathway, favoring light olefins production. The light olefins yield reached 38.6 wt% over the optimal composite catalyst with the external heating at 400 °C and electric power of 6.5 W, surpassing the thermal cracking yields (6.6 wt% at 400 °C; 14.2 wt% at 450 °C). This study provides valuable insights into the efficient cracking of light alkanes under mild conditions and the application of zeolite in electrocatalysis.
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Materials Research-Ibero-american Journal of Materials
·
2026
·
IF 1.3
Cui Hengchang,Zhang Xia,Han Zhuoqun,Shi Guopu,Li Ling
3D printing technology enables the fabrication of complex-structured ceramic components, while Digital Light Processing (DLP) offers superior precision and faster printing speeds. This study prepared zirconia slurries with 45 vol% solid loading using particle gradation technology with different coarse-to-fine powder ratios, systematically investigating the effects of particle size distribution on slurry rheological properties, curing characteristics, and sintered body performance. Experimental results demonstrated that the 80:20 ratio exhibited optimal comprehensive performance. At this ratio, the zirconia slurry showed a viscosity of 4.94 Pa·s at 50 s−1 shear rate and achieved a curing depth of 165 μm at 120 mJ/cm2 energy density. This originates from increased interparticle surface contact due to fine particle incorporation, which enhances steric hindrance effects and consequently reduces powder-resin matrix fluidity, while the enlarged specific surface area significantly improves ultraviolet (UV) light absorption efficiency. After sintering at 1550°C, preferential diffusion of fine particles into grain boundary gaps promoted sintering densification, concurrently inhibiting abnormal grain growth and reducing light-scattering defects, thereby achieving simultaneous improvement in both mechanical properties and optical translucency.
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ACS Photonics
·
2026
·
IF 6
Haiyan Lin,Weibin Lin,Chao Zhong,Tao Chen,Kuibao Yu,Zhihan Lin,Yongshen Yu,Fushan Li,Hailong Hu
Efficiency roll-off of quantum-dot light-emitting devices (QLEDs) at high brightness severely impedes their commercialization, which is mainly attributed to the difficulty in regulating excessive and imbalanced carrier injection under varying electric fields. In this study, a dynamic self-regulation strategy responsive to external electric fields is proposed, which is realized by integrating nematic liquid crystal molecule 5CB into the electron transport layer. The reorientation of 5CB, triggered by the applied bias, generates a built-in electric field that dynamically modulates electron transport in real time, enabling balanced charge carriers during dynamic operation. As a result, the self-regulated QLEDs achieve a peak external quantum efficiency (EQE) of 26.04% and demonstrate ultrastable efficiency retention, maintaining an EQE of 25.37% even at an extremely high brightness of 100,000 nits. This work offers a novel approach for dynamic control of carriers, paving the way for the development of high-performance QLEDs with outstanding stability.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Yiting He,Xiayu Zhu,Ajun Li,Shuyuan Lin,Bo Li,Songbin Liu,Wei Wang,Chuanli Wu,XinYu Ye
CsPbBr 3 perovskite quantum dots (PQDs) possess exceptional optoelectronic properties, such as tunable bandgap and narrow emission linewidth, which underscore their significant potential for optoelectronic devices. However, their practical application is substantially hindered by surface defects, notably uncoordinated Pb 2+ ions, which result in low photoluminescence quantum yield (PLQY) and poor environmental stability. Non-fullerene small molecules have been proven to enhance the efficiency and stability of solar cells. In this work, the non-fullerene molecule BTP-4F was introduced into CsPbBr 3 PQDs, and the mechanism by which BTP-4F influences the stability of QDs under different irradiation conditions was thoroughly investigated. The findings reveal that BTP-4F effectively passivates surface defects by coordinating with undercoordinated Pb 2+ ions, thereby suppressing non-radiative recombination and improving the optical performance of the PQDs. Notably, the BTP-4F significantly inhibits photo-induced degradation and lattice distortion under both ultraviolet and red-light irradiation, presenting a synergistic optimization of PL and stability of the PQDs. The optimized QDs were successfully applied in high-color-rendering light-emitting diodes (LEDs), demonstrating their practical potential. These results provide experimental support for employing BTP-series molecules in PQD-based devices, particularly solar cells and light-emitting diodes. This advances the goal of unlocking the full potential of PQDs and integrating them into diverse optoelectronic applications.
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