International Journal of Minerals Metallurgy and Materials
·
2026
·Vol. 33
·期 2
·669-682
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IF 8.8
Huang Wenzi,Lin Bowen,Zhang Yanbinhui,Liu Jinyu,Shang Wei,Jiang Jiqiong,Wen Yuqing
Magnesium-based anode materials have attracted significant attention in the energy storage domain because of their high theoretical capacities and low electrochemical potentials. However, in conventional electrolyte systems, magnesium metal electrodes dynamically generate an ion-blocking surface layer, resulting in prominent voltage polarization, which severely limits their practical applications. In this study, ZIF-8/carbon nanotubes (CNTs) coatings were used to modify the anodes of magnesium batteries. Compared with the unaltered magnesium battery, the voltage lag time of the ZIF-8/CNTs coating was shortened from 4 s before modification to 0.26 s, and the battery impedance was lowered by two orders of magnitude. The duration of the discharge platform was increased from 4 h before modification to 6–10 h, the anode utilization rate was more than doubled, and the specific energy density was significantly enhanced compared with the battery before modification. The mechanism indicates that the ZIF-8/CNTs coating can limit the infiltration of corrosive substances, extend their transmission path, and offer more effective protection to the magnesium anode. The incorporation of CNTs improves the conductivity of the battery, and it significantly improves the electrochemical performance of the magnesium battery.
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Nanoscale
·
2026
·
IF 5.2
Jin Wang,Baojie Liu,Jixing Liang,Hongguo Hao,Yao-Yao Wang,Yun-Wu Li,Suna Wang
Tetracyclines (TCs), widely used in livestock farming, accumulate in ecosystems and pose health risks due to their persistence. Existing detection methods suffer from high cost, complex procedures, and insufficient specificity. Herein, a dual-emission fluorescent composite (CDs@ZIF-8) was designed by encapsulating carbon dots (CDs) into a zeolitic imidazolate framework-8 (ZIF-8). The composite material exhibits distinct dual emission peaks at 332 nm (ZIF-8) and 492 nm (CDs), and achieves ratiometric fluorescence sensing and differentiation between two structurally analogous antibiotics tetracycline (TC) and chlortetracycline (CTC) by quenching the ZIF-8 peak and enhancing the CD peak. The sensor achieves low detection limits of 7.13 nM for TC and 7.25 nM for CTC, with excellent selectivity and anti-interference capability over other antibiotics. A colorimetric logic gate and smartphone-based RGB analysis platform were developed for visual discrimination and quantitative detection, demonstrating high accuracy in real-sample analysis. This work provides a robust, low-cost strategy for on-site monitoring of TC antibiotics.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Chang Liu,Xing Luo,Xiaowei An,Fengfeng Gao,Xueli Huang,Xueying Wang,Qinglong Luo
ZIF-8-derived carbon materials possess great advantages in the field of electrochemical adsorption due to their abundant porous structures, excellent specific surface areas, and good electrical conductivity. The efficient separation and capture of bromide ions (Br − ) from brine systems represent a critical pathway to achieving high-efficiency utilization of brine resources and environmental protection. In this study, a nitrogen (N)-doped ZIF-8-derived carbon material (NC-800) was synthesized via high-temperature calcination at 800 °C, and its performance in separating and capturing Br − from brine was systematically investigated. Electrochemical test results showed that the NC-800 membrane electrode achieved a maximum intercalation capacity of 115.65 mg·g −1 for Br − at an oxidation voltage of 1.0 V . Moreover, the captured Br − could be successfully converted into elemental bromine (Br₂) through carbon tetrachloride (CCl₄) extraction, realizing the resource recovery of Br − . Cyclic stability tests indicated that after 10 adsorption-desorption cycles, the maximum intercalation capacity of the electrode remained at 57 mg·g −1 , demonstrating excellent cyclic reusability. Systematic characterizations were conducted to analyze the microstructure of NC-800 and the adsorption mechanism of Br − . Combined with electrochemical performance analysis, the effects of different operating conditions on Br − adsorption performance were examined. Density functional theory (DFT) was employed to verify the adsorption mechanism of Br − on NC-800, and the results confirmed that nitrogen doping significantly enhances the Br − adsorption capacity of porous carbon materials. This study deepens the understanding of the “physical-chemical synergistic adsorption mechanism” during Br − separation by the NC-800 material, offering new insights for the development of sustainable bromine resource recovery technologies.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 3.9
Ma Kuanjie,Li Nana,Lu Guochao,Zhang Lianwei,Hu Zhiwei,Liu Wenjing,Cai Yurong
To address the need for rapid desorption in protein adsorption applications, we developed and characterized magnetic core–shell nanoparticles composed of a zeolite imidazolate framework-8 (ZIF-8) coating on magnetite (Fe 3 O 4 ) cores (Fe 3 O 4 @ZIF-8). This nanostructure integrates the pH-sensitive properties of ZIF-8 with the magnetic responsiveness of Fe 3 O 4 , enabling rapid separation within one minute via an external magnetic field. In the synthesis of Fe 3 O 4 @ZIF-8, the particle size of the ZIF-8 shell was found to increase concurrently with the molar ratio of zinc nitrate hexahydrate to 2-methylimidazole. The resulting shells were uniformly distributed on the surface of the Fe 3 O 4 cores. Furthermore, a positive correlation was observed between the ZIF-8 particle size and the adsorption capacity for histidine-rich proteins. In adsorption experiments using bovine hemoglobin (BHB) as a model protein, Fe 3 O 4 @ZIF-8 achieved an adsorption capacity of 1013.5 mg/g within 3 min, representing 87% of its maximum adsorption potential. Saturation adsorption, with a capacity of 1164.3 mg/g, was reached within 8 min. Importantly, the pH-responsive nature of the ZIF-8 component facilitated highly efficient desorption. A high release efficiency of 90% was achieved in just 1 min using a phosphate buffer at pH 5.2. This dual pH- and magnetic-responsive system demonstrates significant potential for applications requiring fast and controllable protein adsorption and desorption, positioning it as an ideal tool for targeted protein recovery in various biochemical and industrial processes.
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FOOD CHEMISTRY
·
2026
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IF 9.8
Qinghong Bai,Yu Xia,Yukun Kang,Ying Yang,Yahui Yang,Li Zeng,Chun Liu,Xin Xiao
Gentamicin (GEN), an aminoglycoside antibiotic, is widely used in treating infections within the livestock industry but readily causes food residues and environmental pollution. This study developed a novel water-soluble supramolecular fluorescent probe DBTPy 2+ @Q[8], through host–guest interactions between the methylpyridine-modified benzothiophene cationic fluorophore (DBTPy 2+ ) and cucurbit[8]uril (Q[8]). This enabled specific GEN recognition and detection via the fluorescence indicator displacement (FID) mechanism. The DBTPy 2+ -Q[8] assembly induced significant fluorescence quenching, while GEN addition rapidly restored fluorescence. The restored intensity exhibited a good linear relationship with GEN concentration in the range of 0.1–10 μM (R 2 = 0.996), with a limit of detection (LOD) of 0.206 μM. The probe exhibited good selectivity and anti-interference capability, achieving 92.0%–104.1% spiked recoveries in water and food samples, and enabled specific GEN fluorescence imaging in living cells. This work establishes a novel supramolecular host–guest strategy for fluorescent probes enabling rapid, quantitative, specific GEN detection.
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Journal of Energy Storage
·
2026
·
IF 9.8
Hu Wang,Shala Yang,Pengfei Pang,Jiangchao Chen,Yongbo Yan,Mingjie Liao,Dazhi Pang,Zheqi Zhang,Yunyun Zhao,Wenping Liu,Huarui Xu,Guisheng Zhu,Kunpeng Jiang
Poor interfacial stability and dendrite penetration at the lithium metal anode interface are critical bottlenecks hindering the practical application of garnet-type solid electrolytes, despite their high intrinsic ionic conductivity. Herein, we resolve this long-standing trade-off by designing a hierarchical sandwich heterostructure. This architecture comprises a dense Li 6.4 Ga 0.2 La 3 Zr 2 O 12 (C-LGLZO) ceramic scaffold sandwiched between two ZIF-8@SiO 2 /PVDF-HFP (ZSPH) composite interfacial layers. The resulting composite solid electrolyte (CSE) C-LGLZO/ZSPH exhibits exceptional electrochemical properties: a high Li + transference number (t Li+ = 0.77) and an outstanding ionic conductivity of 1.31 × 10 −3 S cm −1 at 30 °C. Mechanistically, while the robust central C-LGLZO scaffold provides a continuous Li + pathway and physically blocks dendrites, the honeycomb-like porous ZSPH interfacial layers homogenize the interfacial electric field and promote a stable solid electrolyte interphase (SEI). This synergistic design endows the CSE with a wide electrochemical stability window (4.8 V vs. Li/Li + ) and enables stable Li plating/stripping for over 1000 h. Furthermore, cells using a LiFePO 4 cathode retain 76.3 % of their capacity after 500 cycles at 0.5C, demonstrating exceptional high-rate cycling stability. This work offers a versatile architectural strategy for engineering robust solid-state batteries (SSBs).
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Tianlong Huang,Zhen Mu,Yuanxiang Zhang,Maosheng Cui,Xiaoxiao Wang,Yang Zhang,Lingxiu Chen,Xiaolan Xue
Magnesium-metal organic batteries (MMOBs) are promising candidates for large-scale energy storage due to their high theoretical capacity, abundant resource, and cost-effectiveness. However, the high solubility of organic molecules and the commonly used thick glass fiber separators with poor mechanical strength and high cost hinder their further development. Herein, we report a ZIF-8/Carbon composite-modified polypropylene/polyethylene/polypropylene (ZIF-8/C@PEP) separator to overcome these limitations. This ZIF-8/C@PEP separator was fabricated by uniformly coating a mixture of ZIF-8 and carbon black onto a PEP separator via a doctor-blade method. The porous structure of ZIF-8 acts as a molecular sieve, effectively blocking the diffusion of soluble anthraquinone (AQ) species toward the anode while allowing facile Mg 2+ ion transport. Meanwhile, the carbon black enhances the separator’s compactness and provides additional physical confinement and adsorption sites for soluble molecules. Benefiting from these synergistic effects, by implementing the ZIF-8/C@PEP separator, Mg||Mg cells exhibit stabilized Mg plating/stripping behavior with reduced overpotential, while Mg||AQ full cells deliver good cyclability, maintaining a capacity of 104.8 mAh g −1 after 100 cycles at 0.05 A g −1 with a Coulombic efficiency of 98%. The results demonstrate that separator modification represents a promising strategy for enhancing the performance of MMOBs.
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MINERALS ENGINEERING
·
2026
·
IF 6
Yukun Wu,Lingfeng Shen,Rui Xu,Ning Sun,Li Wang
THQ-8 has selectivity for lepidolite over albite and quartz under near-neutral conditions; • THQ-8 addresses key limitations of conventional cationic collectors by excellent foam properties; • THQ-8 achieves coordination adsorption between its conjugated structure and Al-F sites; • THQ-8 represents a molecular design strategy for environmental lithium resource recovery. The efficient flotation separation of lepidolite from quartz and albite remains challenging in conventional cationic systems, primarily due to poor selectivity and excessive foam stability. To address these issues, a novel oligomeric surfactant, THQ-8, was synthesized and investigated as a potential collector for lepidolite flotation. Micro-flotation results confirmed the superior selectivity of THQ-8, with recoveries of 95.94% for lepidolite versus only 6.32% for albite and 9.57% for quartz, enabling efficient separation. This performance surpassed that of the traditional collector dodecylamine (DDA), which required a highly acidic pulp (pH 2.0), and the Gemini collector PDDA, which lacked selectivity. Complementing this selectivity, also produced foam with markedly lower stability and height than both counterparts, indicating favorable froth properties for mineral processing. A multi-faceted adsorption mechanism study, incorporating contact angle measurements, FTIR, XPS, and AFM, confirmed that THQ-8 selectively chemisorbs onto the lepidolite surface. The primary mechanism involves coordination between the electron-donating nitrogen atoms in its large conjugated structure and the aluminum sites in the natural Al-F and AlF 3 /AlF x layers of lepidolite. In contrast, only weak physisorption or hydrogen bonding occurred on albite, and virtually no adsorption was detected on quartz. This work establishes THQ-8 as a highly effective and selective collector for lepidolite, operating under milder process conditions and overcoming the key limitations of foam stability and corrosion associated with conventional reagents. Download: Download high-res image (212KB) Download: Download full-size image
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MOLECULES
·
2026
·Vol. 31
·期 17
·2970
·
IF 5.1
Sheng Liu,Feifei Wang,Shuran Xing,Guifang Chang,Shijie Li,Jianwen Bu,He Zhu,Litao Wang
Pork is highly perishable during storage, leading to enormous economic losses and potential food safety hazards. Anthocyanins (ANTs) possess excellent antioxidant and antibacterial activities, but their poor stability in practical applications limits their industrial application. To address these issues, a novel composite preservation film was prepared by the four-sided applicator solution casting method, using polylactic acid (PLA) and polybutylene adipate-co-terephthalate (PBAT) as matrix materials and ANTs@ZIF-8 as functional filler. Zeolitic imidazolate framework-8 (ZIF-8) encapsulated ANTs to enhance its stability and achieve sustained release, while the PLA/PBAT was selected for its good biodegradability, mechanical and barrier properties. The structure and properties of the PLA/PBAT/ANTs@ZIF-8 composite films were investigated, and the results showed that ANTs@ZIF-8 nanoparticles had stable dispersibility in the matrix, which effectively improved the compatibility between nanoparticles and the film matrix. The prepared composite films exhibited excellent tensile strength (TS), elongation at break (EAB) and water vapor transmission rate (WVTR), as well as good antibacterial activity againstE. coliandS. aureus. Furthermore, the practical pork preservation performance of the films was investigated, and the results demonstrated that the composite films could effectively reduce the pH value, water loss, color difference, total volatile basic nitrogen (TVB-N) content and malondialdehyde (MDA) content of fresh pork during storage, successfully extending the shelf life of pork to 12 days. This study develops a multifunctional, biosafe, and biodegradable PLA/PBAT composite film incorporated with ANTs@ZIF-8, providing a feasible strategy and scientific reference for the design and development of high-performance active biodegradable packaging materials.
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ANALYTICAL LETTERS
·
2025
·
IF 1.8
Haijian Liu,Miao Wang,Guofu Huang,Chengjie Li,Guofu Li,Lijuan Feng
The overuse of tetracycline (TRC) antibiotics threatens human health and the environment, highlighting the urgent necessity to develop an effective technology for their detection and control. In this work, silver nanoclusters (Ag-NCs) were encapsulated in zeolitic imidazolate framework-8 to prepare composites (Ag-NCs@ZIF-8) with high luminescence performance and used for TRC detection and adsorption. Because of the protection and restriction of the ZIF-8 layer, Ag-NC luminescence intensity was significantly enhanced. In addition, owing to the outstanding luminescence properties of Ag-NCs and the porousness of ZIF-8, the Ag-NCs@ZIF-8 composites not only served as a fluorescent detector for the sensing of TRC but also displayed good adsorption ability for TRC. In the range of 0.02–400 μM, Ag-NCs@ZIF-8 fluorescence decreased linearly with the TRC concentration with a detection limit of 6.67 nM. Importantly, the present luminescent sensor was employed to quantitatively assess TRC in real water samples, yielding acceptable accuracy and precision and indicating the good application value of this method.
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APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Qiang Le,Zhilin Cheng
The higher energy consumption and processing cost greatly constricted the extensive application of the adsorption desulfurization technique. Herein, the nano-Ag 2 O/ZIF-8@ polyacrylonitrile (PAN) nanofiber membrane (NFM) was successfully made by using electrospinning and microwave-assisted synthesis. The characterizations demonstrated that the nano-Ag 2 O-dotted ZIF-8 with the exclusive corncob-like structure uniformly grew on the surface of PAN nanofiber. The in-situ fabrication of nano-Ag 2 O/ZIF-8 on the surface of PAN nanofiber was rapidly realized by microwave-assisted method, thus resulting in the less loss of the mechanical performance of NFM. The tests indicated that the tensile strength and young's modulus of Ag 2 O/ZIF-8@PAN NFM were 35 % and 185 % higher than PAN NFM, respectively. The fabrication of the multi-pore structure endowed the Ag 2 O/ZIF-8@PAN NFM to achieve the superior adsorption performance for thiophene (TH) from fuel oil, having the increase by 312 % and 175 % in the batch adsorption (maximum: 37.142 mg·g −1 ) and fixed-bed breakthrough adsorption (maximum: 35.423 mg·g −1 ) capacities compared to PAN NFM, respectively. Furthermore, the saturated adsorption capacity of Ag 2 O/ZIF-8@PAN NFM in fixed-bed adsorption experiment was higher than those of Cu 2 O-doped PAN NFM (4.571 mg·g −1 ) and Ag 2 O@HNTs-doped PAN NFM (31.982 mg·g −1 ) reported by our previous study. The adsorption mechanism of TH molecules on the Ag 2 O/ZIF-8@PAN NFM was explored by the kinetics, intra-particle diffusion, isotherms and thermodynamic models, which affirmed to exist the synergistic effect of physical adsorption, and chemical adsorption including π-complexation interaction and S-M interaction adsorption. Finally, this work provided a novel prospective adsorption desulfurization based on the membrane separation.
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JOURNAL OF MOLECULAR LIQUIDS
·
2023
·
IF 6
Dan Yang,Yang Luo,Shang Wei Yuan,Li Xia Chen,Pei Hua Ma,Zhu Tao,Xin Xiao
In recent years, most of the constructions on cucurbit[ n ]uril-based supramolecular polymers have been based on host–guest chemistry, however, this limits the choice of host and guest. Herein, we present a newly designed supramolecular polymer, namely Q[8]@PEG-HPTS formed by utilizing outer surface Q[8] interactions. In aqueous solution, the supramolecular polymer Q[8]@PEG-HPTS was obtained quickly and simply by mixing Q[8] with PEG-HPTS, where after, a variety of characterization techniques were employed to confirm the structure of the Q[8]@PEG-HPTS. The ability of this system to selectively recognize metal ions as well as pesticide molecules was also investigated; selectivity was observed for Fe 3+ and paraquat. The biocompatibility and excellent fluorescence properties associated with the constituents of the supramolecular polymer allowed for the imaging of HeLa cells. This system could image and trace the nucleus through the cytoplasm, indicating that it could enter and internalize HeLa cells. Finally, by continuously adjusting the ratio between Q[8] and PEG-HPTS, a Q[8]@PEG-HPTS hydrogel was obtained. This hydrogel exhibited a stimulated temperature response, and opens up further possibilities for exploring the applications of such supramolecular polymers.
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