FOOD CHEMISTRY
·
2025
·
IF 9.8
Yangcheng Liu,Baoli Xu,Shengxue Wang,Qilin Liu,Zheng Xiang,Wanwei Jiang,Yang Wang
The excessive accumulation of benzophenone (BP) endocrine disruptors highlights the need to develop novel materials capable of efficient removal and precise, simultaneous monitoring of multiple BPs. Based on the characteristics of BPs, an accordion-like NH 2 –MXene-based composite material with rice grain–like 1,3,5-tris(4-aminophenyl)-benzene-1,3,5-benzenetricarbaldehyde covalent organic frameworks (TB–COF) on its surface after modification (TB–COF@NH 2 –MXene) was developed. The obtained TB–COF@NH 2 –MXene exhibited rich functional groups, an appropriate pore structure and suitable surface properties. Moreover, it exhibited a high saturation adsorption capacity (292.47–316.23 mg g −1 ), rapid kinetics (25 min) and excellent dynamic adsorption ability (1359–2548 BV). It demonstrated good selectivity and an excellent ability to capture BPs at low concentrations. Notably, dispersive solid-phase extraction based on TB–COF@NH 2 –MXene in combination with high-performance liquid chromatography–diode array detector enabled the simultaneous detection of trace BPs in river water, cookies, vermicelli, milk, coffee, tea and infant formula samples. This study provided practical guidance on environmental and food safety solutions.
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PubMed
高影响因子
OPTICAL MATERIALS
·
2025
·
IF 4.2
Aihua Zhou,Chengguo Ming,Yumiao Pei,Yuanxue Cai,Tingting Guo,Hanbo Li
Reasonable modulation of temperature-dependent luminescence color has attracted significant attention due to its promising applications in anti-counterfeiting and temperature sensing. Although research on thermochromic materials is growing, the detailed exploration of the causes remain insufficiently explored. In this study, we successfully synthesized SrMoO 4 :Tb/Eu samples exhibiting thermal-responsive color tuning. Under 280 nm excitation, the intensity ratio of Eu 3+ ( 5 D 0 → 7 F 2 ) to Tb 3+ ( 5 D 4 → 7 F 5 ) in SrMoO 4 :0.08Tb/0.12Eu gradually increases from 0.81 to 5.8 over the temperature range of 303K–573K, accompanied by a distinct color shift from red to yellow. Experimental investigations demonstrated that the thermochromic behavior of the sample is primarily governed by nonradiative relaxation rates and local site symmetry. These results indicated that the samples can have potential for anti-counterfeiting and temperature sensing, particularly suitable as temperature sensing in the high-temperature reactor observation window.
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高影响因子
APPLIED SURFACE SCIENCE
·
2020
·
IF 6.182
Haowei Lu,Jiaqi Lin,Haiwu Zheng
The ferroelectric properties and fatigue resistance of 47(Ba 0.7 Ca 0.3 )TiO 3 –53Ba(Zr 0.2 Ti 0.8 )O 3 (BCZT) film can be enhanced by Tb modified and adding SrTiO 3 (STO) buffer layer using pulsed laser deposition(PLD) method. The 0.4 mol% Tb doped BCZT/STO(0.4Tb-BCZT/STO) film possesses optimal comprehensive electrical properties. Comparing with traditional BCZT film gown on Pt, the residual polarization( P r ), piezoelectric coefficient( d 33 *), permittivity( ε r ) of 0.4Tb-BCZT/STO film increase from 3.6 to 9.0 μC/cm 2 , 52 to 75 pm/V, 880 to 1210 and loss(tanθ) decrease from 0.028 to 0.017(10 4 Hz), respectively. During a high electric field, the degradation of P r is only 5.8% and the increase of E c is about 6.1% in 0.4Tb-BCZT/STO film after 10 9 switching cycles, which show the excellent fatigue resistance. The improved polarization and fatigue performances of film benefits from the reduced pinning influence with lower defect concentration based on a series of experiments and theoretical simulation. This work demonstrates the potential candidates of lead-free nonvolatile memory micro-devices applied in microelectronic industry.
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高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2026
·
IF 4.6
Yulong Han,Huanhuan Lu,Haili Liu,Hengye Chen,Wei Lan,Xinming Lv,Wanjun Long,Haiyan Fu
In this work, a ratiometric fluorescent sensing platform based on the antenna effect of Tb-doped metal – organic framework (Tb-MOF) was constructed for sensitive and visual detection of enoxacin (Eno). The coordination of Tb 3+ with the β-diketone structure of the Eno molecule activates yellowish-green fluorescence emission through the “antenna effect”. The Tb-MOF fluorescent probe exhibits excellent response-sensitivity and selectivity for Eno with a low detection limit (LOD) of 0.09 μM, showing a good linear response in the concentration range of 0–20 μM. Under excitation with 365 nm ultraviolet light, the fluorescence color of the sensor system gradually changes from blue to yellow-green as the Eno concentration increases. Further, Tb-MOF ratiometric fluorescent sensor combined with cloud-based machine learning algorithm-assisted WeChat Mini Program realized the intelligent quantification of Eno in complex matrices such as honey, milk, and beef was achieved, which overcomes the reliance of traditional methods on large-scale instruments and provides a portable and efficient solution for on-site monitoring of food safety.
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高影响因子
BIOSENSORS & BIOELECTRONICS
·
2020
·
IF 10.257
Juncong Miao,Kang Du,Xuan Li,Xiaoting Xu,Xue Dong,Jinglong Fang,Wei Cao,Qin Wei
Procalcitonin (PCT) as a disease marker is of great significance in the early diagnosis of septicemia and pyemia. Biosensor have good prospects for analysis and detection of disease markers, but developing highly sensitive detection methods for detecting PCT remains a daunting task. In this paper, we develop a ratiometric electrochemical immunosensor with Au NPs modified SiO 2 -Fc-COOH complex as matrix and UiO-66 loaded with Toluidine blue (TB) as a marker for quantitative detection of procalcitonin (PCT). The SiO 2 modified by APTES not only has a large specific surface area but also contains abundant amino groups, which can be connected to the electrochemical probe of ferrocenecarboxylic acid (Fc-COOH). UiO-66 has the advantages of large specific surface area, high porosity and adjustable structure, which can adsorb toluidine blue electrochemical probe through electrostatic attraction . Measurement and analysis of the prepared immunosensor by Differential Pulse Voltammetry (DPV) show that the oxidation peak currents of Fc-COOH and TB appear at potentials of 0.30 V and −0.30 V respectively. As the PCT concentration increases, the oxidation peak current of TB increases and the oxidation peak current of Fc-COOH decreases. The ratios ( ΔI = ΔI TB /ΔI Fc-COOH ) between the double signals could show a certain linear relationship with the concentration of the PCT within a certain range. Under optimal conditions, the linear range of detection obtained by the immunosensor was 1 pg/mL-100 ng/mL and the detection limit was 0.3 pg/mL. In this work, the developed ratiometric electrochemical immunosensor not only provides a simple, reliable and sensitive strategy for quantitative detection of PCT but also provides a useful method for clinical detection of other disease markers.
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PubMed
高影响因子
POLYHEDRON
·
2024
·
IF 2.4
Jian Gou,Luxin Xing,Yousong Hu,Lina Zhang,Yongxin Li,Ning Bi,Yuanyuan Huang,Jun Xu,Lei Jia
A polychromatic fluorescent nanoprobe based on natural halloysite nanotubes with fluorescent dyes and porous metal–organic frameworks co-loaded on the surface and inner wall of the nanotubes was constructed for the highly sensitive visual identification of the Bacillus anthracis biomarker 2,6-dichlorophenolic acid (DPA). The limit of detection for DPA was 11.27 nM, which is significantly lower than the spore-borne dose for anthrax infection (60 uM). The multi-color fluorescent probe showed potential for rapid, accurate, and highly selective detection of Bacillus anthracis markers in actual samples. Besides, a portable fluorescence detection platform was developed in combination with a smartphone color scanning APP to simplify the detection process and realize real-time semi-quantitative analysis.
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高影响因子
JOURNAL OF RARE EARTHS
·
2024
·
IF 5.2
Chen Di-Ming,Han-Dong Qiao,Shao-Ming Fang
Introduction of porosity and fluorescent properties into lanthanide metal–organic frameworks (MOFs) with rational design to achieve multifunctional use is of great significance from the energy and environmental viewpoint. In this study, a microporous Tb(III)-based MOF with the formula of {[Tb 2 (oba) 3 (Phen) 2 ](DMF) 2 (H 2 O) 4 } n ( 1 ) was solvothermally prepared via using the mixed ligands of 1,10-phenanthroline (Phen) and 4,4′-oxybis(benzoic acid) (H 2 oba) as organic connecters. The structural evaluation results indicate that complex 1 is composed of binuclear Tb 2 (CO 2 ) 6 (Phen) 2 clusters which are extended by the oba 2− ligands to afford a two-fold interpenetrated framework with one-dimensional microporous channels along the b -axis. Gas sorption studies show that the activated 1 demonstrates a high ideal adsorption solution theory (IAST) sorption selectivity of 7.4 toward C 2 H 2 in a C 2 H 2 /CO 2 gas mixture, which are further supported by the dynamic breakthrough experiments. The grand canonical Monte Carlo (GCMC) simulation results indicate that the synergistic effects of the H-bond interactions of C 2 H 2 with oba 2− ligands and the C–H···π interactions with Phen ligand contribute to the strong binding of the framework toward C 2 H 2 molecules. What's more, the luminescent measurements reveal that the emission of 1 features both the characteristic peaks of Phen ligand and Tb(III) ion, which could be further applied as a self-calibrating sensor for the Cr(VI) detection in water. To the best of our knowledge, complex 1 represents the first example of Tb-MOF holding such a high C 2 H 2 /CO 2 selectivity together with ratiometric Cr(VI) detection performances.
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高影响因子
Journal of Materials Chemistry C
·
2020
·Vol. 8
·期 41
·14548-14558
·
IF 7.059
Zhihao Wang,Qinghong Meng,Chunyun Wang,Dianyuan Fan,Yu Wang
Phosphor-converted white light-emitting diodes (pc-WLEDs) integrated with deep UV chips and single-component white light-emitting phosphors have attracted widespread research interest recently. (Y,Tb,Eu)NbO4 nanophosphors with full-color emission properties were achieved in this work by a facile calcination-assisted hydrothermal method, and the elaborately designed white light-emitting (Y0.988Tb0.010Eu0.002)NbO4 phosphor was successfully applied to a 275 nm chip excited pc-WLED with a relatively low correlated color temperature (CCT) of 5517 K and a high color-rendering index (CRI) of 86.7. Through a comprehensive characterization by XRD, elemental analysis, FE-SEM, TEM, TG, FT-IR, UV-vis, and optical spectroscopy, the YNbO4 nanophosphor with optimal PL properties was evidenced to be obtainable through calcining the hydrothermally crystallized precursor at 1000 °C. The quenching concentrations of Tb3+ and Eu3+ in YNbO4 were determined to be ∼4 and 5 at%, respectively, and the efficiency of the NbO43− → Tb3+ energy transfer was calculated to be ∼47.93%. Upon excitation at 260 nm, the ternary (Y,Tb,Eu)NbO4 phosphor simultaneously displays blue NbO43−, green Tb3+, and red Eu3+ emissions. Benefiting from the NbO43− → Tb3+ → Eu3+ energy transfer, full color emission was achieved via adjusting the Tb3+ and Eu3+ concentrations in (Y,Tb,Eu)NbO4. The white light-emitting (Y0.988Tb0.010Eu0.002)NbO4 phosphor with color coordinates of (0.336, 0.334) can maintain its emission color and ∼67% of its overall emission intensity at 150 °C, indicating that the phosphor is highly promising for application in deep UV chip-based pc-WLEDs.
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高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2026
·
IF 4.8
Jingxian Zhu,Bo Jing,Yiman Jia,Weiwei Zhang,Changyan Sun
Developing sensitive and biocompatible detection technologies is important for public health management and risk assessment. In this investigation, a new multifunctional Tb-MOF fluorescent nanomaterial was constructed, which has excellent structural stability and luminescent performance. It can achieve highly sensitive detection of three key target substances - aspartic acid, ethyl maltol, and rotenone in complex matrices, with detection limits as low as 16.0, 14.5, and 48.0 nM respectively. The Tb-MOF exhibited successful application in real samples such as infant formula, peanut oil, and artificial serum with satisfactory recovery rates (92.49%–103.1%). It is worth noting that the cytotoxicity experiment further confirmed its low toxicity, supporting its safe application in the biological body.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·121155
·
IF 7.2
Yaqi Liu,Hui Lu,Changfei Gao,Yameng Wang,Haoran Liu,Huiqiang Ma,Bo Wang,Lifen Liu,Yihua Li,Xianbo Chang
The persistent threat posed by radioactive metal contamination necessitates the development of innovative and sustainable remediation strategies. In this study, we proposed a self-sustaining bioelectrocatalytic reduction system (BECRs) incorporating an in situ co-synthesized ternary Fe/Cu/Co@Z-CF cathode derived from zeolite imidazole salt skeleton (ZIF) -functionalized carbon felt. The engineered electrode demonstrated outstanding electrocatalytic performance, characterized by an ultrahigh exchange current density of 7.68 × 10 −3 A cm −2 and minimal charge transfer resistance of 0.11 Ω. These properties were attributed to the synergistic redox cycling of Fe-Cu-Co species and the enhanced exposure of active sites facilitated by the ZIF structure. Under optimized conditions at pH 11, the BECRs achieved removal efficiencies exceeding 98.28 % for targeted radionuclides (Cs + : 99.00 %, Sr 2+ : 98.28 %, Tb 3+ : 99.95 %, Eu 3+ : 99.97 %) while generating a stable bio-voltage of 730 mV. The removal mechanisms operated synergistically through three primary pathways: direct electroreduction of metals to elemental or metallic oxide forms at the catalytic cathode; electroflocculation mediated by in situ formation of Fe(OH) x species and microbial adsorption by enriched pollutant-resistant microbial consortia, notably with a 16.3 % increase in Bacteroidota abundance. Density Functional Theory (DFT) calculations revealed charge complementarity among Fe/Cu/Co sites, accelerating oxygen reduction kinetics. Crucially, the electrode demonstrated negligible metal leaching across pH 3–11, confirming ecological safety. Kinetic analysed distinguish radionuclide-specific pathways: pseudo-first-order for Cs⁺/Sr²⁺ versus pseudo-second-order for Tb 3+ /Eu 3+ , informing selective recovery strategies. This work established a green, energy-positive paradigm for radioactive wastewater treatment, achieving simultaneous decontamination, resource recovery (metallic Cs/Sr/Tb/Eu) with significant potential for closed-loop nuclear effluent management.
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高影响因子
Journal of the Korean Ceramic Society
·
2026
·
IF 4.4
Liu Jiahang,Chen Yumeng,Wang Yiyong,Lu Zhe,Zhou Yanwen,Lee Jun-Seob,Choi Heekyu,Li Yan,Guo Honglin,Jung Yeon-Gil
The targeted design of composition and properties for high-entropy rare-earth zirconates (HE-RE 2 Zr 2 O 7 ) using thermal properties tailoring theory represents a research hotspot in the field of thermal barrier coatings. This work designed and synthesized a class of HE-RE 2 Zr 2 O 7 via solid-state reaction by adjusting the mass disorder, size disorder, and electronegativity, including (La 0.2 Ho 0.2 Sm 0.2 Gd 0.2 Tb 0.2 ) 2 Zr 2 O 7 (#Tb), (La 0.2 Ho 0.2 Sm 0.2 Gd 0.2 Er 0.2 ) 2 Zr 2 O 7 (#Er), (La 0.2 Ho 0.2 Sm 0.2 Gd 0.2 Yb 0.2 ) 2 Zr 2 O 7 (#Yb), (La 0.2 Ho 0.2 Sm 0.2 Gd 0.2 Lu 0.2 ) 2 Zr 2 O 7 (#Lu). The phase composition and crystal structure were analyzed using XRD, Raman spectroscopy, and TEM, and the thermophysical and mechanical properties were evaluated. The results demonstrate that as the size disorder increases, HE-RE 2 Zr 2 O 7 gradually transforms from a single-phase structure to a dual-phase structure coexisting with pyrochlore and fluorite. In terms of thermophysical properties, all materials exhibit low thermal conductivity and good correlation with both size disorder and mass disorder. Among them, #Lu demonstrates the most outstanding thermal insulation performance, which is attributed to its strong Umklapp scattering and point defect scattering. Additionally, under the combined effects of electronegativity, lattice energy, and size disorder, #Lu exhibits the highest thermal expansion coefficient. Importantly, doping with different rare-earth elements increases the material’s configurational entropy and degree of lattice distortion, optimizing the high-temperature phase stability and chemical compatibility from the kinetic perspective. In terms of mechanical properties, #Lu exhibits the lowest Young’s modulus, highest hardness, and fracture toughness, which is attributed to its high internal size disorder and lattice distortion. This work employs thermal properties tailoring theory to customize the composition of high-entropy RE 2 Zr 2 O 7 . It is essential for developing RE 2 Zr 2 O 7 thermal barrier coatings with tunable thermophysical properties.
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高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Jie Liu,Feng Jiang,Duo Zhou,Xianhui Yin,Guo Feng,Qian Wu,Xiaojun Zhang,Quan Zhang,Jianmin Liu,Yun Yu
Terbium-doped zircon (ZrSiO 4 ) yellow pigments were synthesized via a mechanochemical-assisted in-situ molten salt method, and their coloration mechanism was investigated. The results show that Tb ions are solid solved in the zircon lattice in mixed Tb 3+ /Tb 4+ valence states. The bright yellow color of the pigment is primarily due to the O 2p → Tb (IV) 4f LMCT transition of Tb 4+ , while the oxygen vacancy mechanism compensates for the charge imbalance from Tb 3+ doping. Under optimal conditions, including a Tb doping amount of 0.07, a Si/Zr molar ratio of 1.05, and calcination at 800 °C for 2 h, the pigment demonstrated superior color performance with chromaticity values of L* = 87.60, a* = −7.43, b* = 72.22, and C* = 72.60. The pigment has uniform particle size distribution and excellent glaze compatibility, maintaining a stable yellow color within a glaze-firing temperature range of 1000–1300 °C, and does not contain harmful elements such as Pb, Cd, or Cr. The mechanochemical-assisted in-situ molten salt method used in this study presents a low-temperature synthesis route for high-performance yellow ceramic pigments, which offers potential for reducing thermal energy consumption.
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危险品化学品经营许可证（带存储）