ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19
Hongkang Su,Chenxu Li,Jiahao Jiao,Zhihua Yang,Shilie Pan,Min Zhang
The development of modern science urgently needs the vital tool of deep-ultraviolet (DUV, λ < 200nm) all-solid-state lasers, while the exploration of DUV nonlinear optical (NLO) crystals is limited by their strict application conditions. Herein, we propose a structural design strategy for developing novel DUV NLO optical crystals through synergistic assembly of fluorinated polyhedral and planar B─O groups with balanced optical properties, namely, large second-harmonic generation (SHG) response, appropriate birefringence, and wide band gap. The key to achieve consistent alignment of π-conjugated functional groups lies in leveraging the “shearing” effect and directional polymerization capability of fluorinated polyhedra. Furthermore, based on this strategy, a series of alkali-metal fluorooxoborates M x (NH 4 ) 2- x B 8 O 12 F 2 (M = K, Rb; 0 < x < 2; KABF, RABF) and CsNH 4 B 8 O 12 F 2 (CABF) were successfully designed and synthesized. Driven by uniformly arranged [BO 3 F] 4− and chain-like aggregated [BO 3 ] 3− functional groups, these compounds achieve a well-balanced optimization of strong SHG response (1.6–1.7 × KDP, 1064–532 nm; 0.4–0.5 × BBO, 532–266 nm, respectively) and the shortest type-I phase-matching wavelength (161.5–168.6 nm). The inspiring results highlight their potential as candidates for DUV NLO crystals and provide support for the structure construction strategy using a synergistic combination of fluorinated polyhedra and polymerized BO 3 units.
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CORROSION SCIENCE
·
2026
·
IF 8.5
Bingzhi Li,Bingce Liu,Enyu Guo,Keqiang Su,Zhihao Zhou,Yibo Ouyang,Xingchen Li,Huijun Kang,Zongning Chen,Xiao-Bo Chen,Tongmin Wang
Magnesium-lithium (Mg-Li) alloys are promising lightweight materials for engineering applications, but their use is limited by poor wear and corrosion resistance. To address those challenges, micro-arc oxidation (MAO) coatings were fabricated on Mg-Li alloy LA81 using electrolytes containing conductive ceramic nanoparticles (TiBCN). Results suggest that TiBCN enhances electrolyte conductivity and altering the arc discharge behavior, thereby reducing overall porosity of the resultant MAO coatings. Comprehensive characterization including measurements of coating thickness, microstructure, triboelectrochemical and corrosion resistance identify 2.5 g/L TiBCN as the optimal concentration. This formulation exhibits enhanced corrosion resistance, wear resistance and a notably low pore density. Three-dimensional evolution of corrosion in the optimized MAO coating was examined using synchrotron X-ray computed tomography. In corrosive environments, the combined effects of corrosion and expansion of corrosion products alter size, shape, and number of microdefects in MAO coatings over time. These changes were driven by the interactions between localized corrosion propagation and the accumulation and expansion of corrosion products. Ultimately, neighboring micro-defects merged, forming interconnected through-pores and accelerating MAO coating degradation.
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ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.3
Jun Zhou,Liwen Ma,Yue Yin,Zhaodong Li,Sitong Liu,Junchao Ma,Yunong Li,Xiaoqing Cao,Song Li,Gaowu Qin
The green and selective oxidation of silanes to silanols has attracted considerable attention owing to its extensive applications across various industries. In this study, we introduce a novel instantaneous low-voltage microplasma electrolytic oxidation (ILVPEO) strategy to fabricate a highly efficient Pd/MgO/Mg catalytic system for the selective oxidation of silane to silanol. This approach leverages in situ microplasma effect to simultaneously decompose [PdCl4]2– and oxidize the Mg substrate, yielding Pd/MgO/Mg composites that features ultrasmall Pd nanoparticles (2.1 nm with high monodispersity) uniformly anchored on a porous and hydrophilic MgO support. These characteristics endow the catalyst with outstanding performance in the oxidation of phenylmethyldimethylsilane (PhMe2SiH) to the corresponding phenylmethyldimethylsilanol (PhMe2SiOH), achieving a remarkable turnover frequency (TOF) of 11,698 mol mol–1 h–1(129,260 mol mol–1 h–1), significantly surpassing conventional systems. Notably, the reaction proceeds using water as the primary oxygen source and generates hydrogen as the only byproduct, aligning closely with the principles of green chemistry. Moreover, the Pd/MgO catalyst demonstrates excellent durability, maintaining over a 90% product yield across 20 consecutive reaction cycles. It also displays broad substrate compatibility, efficiently oxidizing a diverse array of silanes with steric effects influencing the activity. This work presents a sustainable and scalable catalytic platform for silane oxidation, offering substantial potential for green industrial applications.
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CERAMICS INTERNATIONAL
·
2026
·
IF 5.6
Lingjiao Zhu,Yan Liu,Dongmei Pu,Qiwen Yong,Liang Wu,Zhi-Hui Xie
A synergistic sealing protocol involving modifying micro-arc oxidation (MAO) coatings with a mixture of stearic acid (SA) and yttrium nitrate was developed to intensify the long-lasting corrosion protection. The micropore-sealing effects of two yttrium-containing solutions at different times and the corresponding morphologies and compositions of the composite coatings were investigated. The organic-inorganic SY-MAO-20 composite coating treated in the mixture for 20 minutes exhibited mostly enhanced corrosion protection, ascribed to the decreased surface porosity resulting from the sealing effect of (C 17 H 35 COO) 3 Y (Yttrium stearate) compared to the unmodified coating. The SY-MAO-20 coating possesses an extremely low corrosion current down to 10.9 nA·cm -2 and a high impedance modulus up to 6.52 MΩ·cm -2 at low frequency, which are decreased by two orders of magnitude and increased by 50 times compared to the MAO film without modification. The enhancement of the as-prepared coating in corrosion resistance is also caused by the transition of surface wettability from hydrophilicity (water contact angle: 20.4° ± 4.2°) to hydrophobicity (141.2° ± 1.2°) due to the SA modification. These results demonstrate an effective strategy to address the micropore issue in the MAO coating and thus significantly intensify the physical barrier action for achieving long-term corrosion protection for the magnesium alloy.
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ADVANCED MATERIALS
·
2026
·
IF 29.1
Chongyang Cai,Leipeng Li,Xuan Fan,Jie Wang,Tingting Deng,Feng Wang,Yanmin Yang
Accurate and reliable radiation dosimetry is critical for applications ranging from cancer radiotherapy to nuclear safety and space exploration. While thermoluminescence and optically stimulated luminescence serve as benchmark technologies, their inherently destructive readout mechanisms preclude the straightforward, repeated verification of an absorbed dose and require complex laboratory procedures. Here, we propose a novel mechanoluminescence (ML) ratiometric dosimetry. It depends on KMgF 3 :Sm 2+,3+ that can exhibit both ML at 685 nm (Sm 2+ : 5 D 0 → 7 F 0 ) and 602 nm (Sm 3+ : 4 G 5/2 → 6 H 7/2 ) under external force stimulation. The ML intensity ratio of the 602 nm band to the 685 nm band increases linearly with increasing the radiation dosage of x-rays. This ratiometric approach provides a robust internal self-calibration, making the readout immune to fluctuations in stress magnitude or duration, a fatal flaw in prior ML intensity-based methods. Therefore, we can obtain the x-ray dose simply by pressing the KMgF 3 :Sm 2+,3+ samples. This strategy allows for multiple, nondestructive measurements, enabling on-demand verification of radiation doses with unparalleled simplicity.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Tao Liao,Dan Hou,Hao Huang,María Belén Camarada,Xiaoning Liao
Herein, a novel ratiometric molecularly imprinted electrochemical sensor (MIP-RECS) based on Ag nanoparticles (AgNPs) and ionic liquid (IL) co-modified Ti 2 NTx (AgNPs@Ti 2 NT x @IL) was developed for the determination of patulin (PAT). Firstly, the AgNPs@Ti 2 NT x @IL nanocomposite, was prepared by an in situ reduction and self-assembled method, and then, was cast on the glassy carbon electrode (GCE) to build an electrochemical interface with excellent conductivity and high surface area. After that, the MIP was deposited on the nanocomposite modified GCE by the electro-polymerization technique, with thionine (Thi) and PAT as functional monomer and template molecules. In the sensing platform, the oxidation peaks generated by Thi and AgNPs were used as reference and probe signal, respectively. The introduction of reference effectively eliminates the influence of the matrix effect. At the same time, the oxidation signal of the Ag probe is greatly improved by the high conductivity and large surface area of the AgNPs@Ti 2 NT x @IL nanocomposite. Therefore, the MIP-RECS presented a wide linear range, a very low low limit of detection (LOD), together with high selectivity and excellent repeatability. Additionally, the linearity ranges and LODs of the sensor can be controlled by the amount of Ag, highlighting its robustness in different types of real samples. Furthermore, this sensing model can be used to sensitively detect other residues with poor redox activity, such as imidacloprid and catechol, highlighting its versatility and universality.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Zhiwei Liu,Cong Wang,Qi Tan,Tianshuo Yang,Bingliang Gao
The large-scale resource utilization of coal fly ash (CFA) poses a significant technological challenge in industrial solid waste management and the sustainable development of coal-based industries. This study addresses critical issues in producing Al Si alloys from CFA via molten salt electrolysis, such as high impurity content in the final alloy and unclear reaction mechanisms during electrolysis, by developing an integrated “hydrometallurgical purification-aluminum-silicon oxide preparation-molten salt electrolysis” process. Through systematic experimental research and theoretical calculations, we comprehensively investigated the dissolution characteristics and electrochemical behavior of aluminum-silicon oxide (ASO) in cryolite-based electrolyte systems. The results indicate that Al 2 O 3 promotes the stable existence of silicon in the form of NaAlSi 3 O 8 , effectively suppressing SiF 4 gas generation and reducing silicon loss from 25.84 % to 0.70 %. The formation of aluminosilicate enhances the dissolution rate of ASO by 2.4 times compared to Al 2 O 3 . Electrochemical analysis confirms that the reduction of Si(IV) follows a unique electrochemical-aluminothermic synergistic mechanism. Compared with melting-casting method, the molten salt electrolysis process effectively reduces the grain size of the alloy by approximately 43.3 %, leading to improved overall mechanical properties. The process achieves high utilization rates of 98.31 % for silicon and 94.55 % for aluminum from CFA, offering an innovative technical solution for high-value-added resource utilization of this industrial solid waste.
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TALANTA
·
2023
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IF 6.1
Jingyu Li,Miao Liu,Jiaxuan Li,Xianhua Liu
The establishment of simple and sensitive detection methods for fluoride ion (F − ) is of great importance for its effective prevention and control, and metal-organic framework (MOF) has attracted much attention for sensing applications due to its high surface areas and tunable structures. Herein, we successfully synthesized a fluorescent probe for ratiometric sensing of F − by encapsulating sensitized Tb 3+ in a MOF-on-MOF material (UIO66/MOF801, with the formula of C 48 H 28 O 32 Zr 6 and C 24 H 2 O 32 Zr 6 , respectively). We found that Tb 3+ @UIO66/MOF801 can be used as a built-in fluorescent probe for fluorescence-enhanced sensing of F − . Interestingly, the two fluorescence emission peaks of Tb 3+ @UIO66/MOF801 at 375 nm and 544 nm exhibit different fluorescence responses to F − under excitation at 300 nm. The 544 nm peak is sensitive to F − , while the 375 nm peak is insensitive to it. Photophysical analysis indicated that the photosensitive substance was formed, which promotes the absorption of 300 nm excitation light by the system. Self-calibrating fluorescent detection of F − was achieved due to the unequal energy transfer toward the two different emission centers. The detection limit of Tb 3+ @UIO66/MOF801 for F − was 4.029 μM, which is far lower than the WHO guideline for drinking water . Moreover, the ratiometric fluorescence strategy showed a high concentration tolerance of interference, because of its inner-reference effect. This work highlights the high potential of lanthanide ion encapsulated MOF-on-MOF as environmental sensors, and offers a scalable way for construction of the ratiometric fluorescence sensing systems.
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Advanced Optical Materials
·
2023
·Vol. 11
·期 8
·2202654
·
IF 9
Yifan Song,Jiaren Du,Rujun Yang,Cunjian Lin,Wenjing Chen,Zishuang Wu,Hengwei Lin,Xi Chen,Yixi Zhuang,Rong-Jun Xie
Time–temperature indicator (TTI) technologies allow for nondestructive and real-time quality management of perishable products during the entire transport–storage process, which provides an important guarantee for the product safety of end users. However, the existing TTI technologies still have shortcomings in recyclability, sensitivity, and environmental tolerance, limiting their widespread applications. Herein, a new TTI route based on the light storage effect in persistent luminescent (PersL) materials is proposed. Such TTI is designed on account of the principle that the release rate of light-induced trapped carriers in PersL materials is closely dependent on the storage time and temperature, enabling to establish a correlation between the number of residual carriers and the freshness of perishable products. Taking KZnF 3 :Mn 2+ as a model material, the light-storage-based TTI technology shows excellent recyclability, reliability, and environmental stability. This work reveals great potentials of PersL phosphors as information recording materials in advanced TTI application and next-generation biological detection technology.
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JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2023
·
IF 5.7
Junjie Xu,Wei Sun,Xiang Xiong,Hongbo Zhang,Lingkun Yang
To improve the ablation resistance of carbon fibre (Cf), alleviate the interdiffusion between Cf and the matrix, and improve the complex preparation process of double-layer carbide coating, a high-quality SiC-HfC double interpenetrating coating was prepared on the surface of Cf using a molten salt synthesis (MSS) method. The microstructure, formation mechanism, and ablation behaviour of the coating were studied. The results show that the coating is composed of interpenetrating HfC and SiC phases. The interpenetrating structure was formed due to the transport of Hf ions into the interior of porous SiC nanowires facilitated by the molten salt medium, followed by diffusion through carbon. The SiC-HfC double-layer interpenetrating coating can serve as an oxygen barrier to protect Cf from oxidative damage under extreme temperature (2000 °C) and aerobic environment (oxyacetylene flame).
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MOLECULES
·
2023
·Vol. 28
·期 7
·2923
·
IF 4.6
Enmin Zong,Xuanren Wang,Lirong Zhang,Jiayao Yang,Xiaohuan Liu
The application of lignin-based adsorbents in the efficient removal of phosphate from wastewater has attracted much attention and been intensively studied in recent years. However, most currently reported lignin-based adsorbents are difficult to recover and recycle. Herein, we have developed a recyclable, nanostructured bio-adsorbent, poly(ethyleneimine) (PEI)-modified lignin (LG) integrated with Fe3O4and Zr-La dual-metal hydroxide (LG-NH2@Fe3O4@Zr-La), by the Mannich reaction followed by the chemical coprecipitation method. Multilayer adsorption existed on the surface of LG-NH2@Fe3O4@Zr-La based on the isotherm fitting curve, and its adsorption capacity reached 57.8 mg P g−1, exhibiting a higher phosphate uptake than most reported metallic oxide-based composites. The adsorption process was dominated by inner-sphere complexation of ligand-exchange and electrostatic interactions. Moreover, LG-NH2@Fe3O4@Zr-La exhibited excellent selectivity against coexisting anions, and the adsorption was more efficient under acidic conditions. When the phosphate concentration was 2.0 mg P L−1, the removal efficiency of phosphate reached 99.5% and the residual concentration was only 10 μg P L−1, which meets the United States Environmental Protection Agency (USEPA) standard for eutrophication prevention. In addition, the LG-NH2@Fe3O4@Zr-La displayed excellent reusability, maintaining 91.8% of removal efficiency after five cycles. Importantly, owing to the magnetic properties of the loaded Fe3O4, the resulting composite could be separated within 30 s under an external magnetic field. Thus, the separable and recyclable biobased magnetic adsorbent developed in this work exhibited promising application in phosphate capture from real sewage. This research study provides a new perspective for lignin valorization in lignocellulose biorefineries and establishes an approach for developing an economical and efficient bio-adsorbent for phosphate removal from wastewater.Keywords:lignin;magnetic adsorbent;Zr hydroxides;La hydroxides;phosphate;recycle
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Biomaterials Science
·
2023
·
IF 6.6
Yukun Wang,Wenjing Li,Bi Lin,Ying Yuan,Pengbo Ning,Xiaofeng Tao,Ruichan Lv
Photothermal therapy has a remarkable effect on the destruction of tumors. It kills tumor cells by photothermal ablation and induces immunogenic cell death by activating the immune response in tumor tissues. However, inhibition of the tumor immune microenvironment suppresses PTT-induced body-specific anti-tumor immunity. In this study, we designed the GdOF@PDA-HA-R837-hydrogel complex to achieve NIR-II imaging-guided photothermal ablation and enhanced immune response. Due to the doping of Yb and Er elements and the presence of a polydopamine coating, the synthesized nanoparticles enable NIR-II and photoacoustic imaging of tumor tissues, which will help in the integration of multimodal tumor imaging for diagnosis and treatment. Polydopamine is used as a photothermal agent and drug carrier because of its excellent photothermal ability and high drug loading capacity under 808 nm near infrared light. Hyaluronic acid can bind to specific receptors on the surface of cancer cells, allowing nanoparticles to aggregate around the tumor, thus enhancing the targeting ability of nanoparticles. In addition, imiquimod (R837) has been used as an immune response modulator to enhance the immunotherapeutic effect. The presence of a hydrogel enhanced the retention effect of nanoparticles in the tumor. We demonstrate that the combination of photothermal therapy with immune adjuvants effectively induces ICD, which in turn stimulates the activation of specific anti-tumor immunity and enhances the effect of photothermal therapy in vivo.
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