MATERIALS LETTERS
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2023
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IF 3
Xiang Wang,Jiahui Zhang,Jiaxin Jiang,Gaofeng Zheng,Wenwang Li
Bead-like PAN/ZIF-8 nanofiber membranes, of which the commercial ZIF-8 nanoparticles attached to the surface of PAN nanofibers, were prepared by a simple one-step electrospinning method. The fiber structures, electrospinning parameters and adsorption capacity to methyl blue were investigated. ZIF-8 distributed uniformly on the nanofiber, and the adsorption process followed the pseudo-second-order kinetics. Maximum adsorption capacity was obtained as 224.37 mg/g at ZIF-8 concentration of 10 wt%, methyl blue concentration of 100 mg/L, and time of 180 min. Our work provides a simple, cost-effective process for the fabrication of MOFs nanofiber membranes with good adsorption capacity that suitable for practical commercial applications.
研究领域:
材料科学
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环境工程
·
纳米技术
·
吸附技术
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Shuang Li,Mengli Yan,Chenguang Yang,Chunyu Yang,Jianwang He,Yan Xu
Large-scale utilization of hydrogen for fuel cells and chemical manufacturing imposes urgent demands on hydrogen sensing materials with superior sensitivity and selectivity. Herein, we successfully fabricated a Ni-BTC@ZIF-8 MOF-on-MOF heterostructure using polyvinylpyrrolidone (PVP) as a stabilizer and bridging agent. The hierarchical porous architecture enables size-selective microporous sieving in the outer ZIF-8 layer, facilitating H 2 permeation while blocking larger interfering molecules. This selective mass transfer optimizes H 2 accessibility at the sensing interface. Owing to the favorable mass-transport behaviour, the Ni-BTC@ZIF-8 sensor delivers an ultrahigh selectivity with a response value of 6.0 toward 20 ppm H 2 at 200 ℃, alongside an exceptionally fast recovery speed (∼6 s). Moreover, the device demonstrates excellent cycling stability and long-term reliability. This work further probes the underlying mechanism responsible for the improved H 2 -sensing performance of the MOF-on-MOF heterostructure, which arises from interfacial synergistic effects. Specifically, the intimate ZIF-8/Ni-BTC contact affords selective gas-transport channels from ZIF-8 and efficient electron-conduction pathways, with Ni-BTC serving as the active sensing layer for signal transduction. Such a synergistic interplay optimizes the coupling between molecular-sieving and sensing response. These findings provide a feasible and scalable paradigm for constructing novel high-performance hydrogen gas sensors.
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LANGMUIR
·
2026
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IF 4.4
Wenhao Bao,Bizhi Lv,Linqiong Xu,Yaoxin Shao,Jinpeng Wang,Yongqing Zhao,Xinsheng Dou
A macroscopic P-ZIF-8/PDA/MF adsorbent was fabricated by substituting conventional zinc precursors with layered porous zinc oxide (P-ZnO) on polydopamine (PDA)-functionalized melamine foam (MF). The composite exhibited exceptional adsorption capacity for chlortetracycline hydrochloride from wastewater, with a Langmuir-modeled maximum of 1320 mg/g at pH 6. Systematic evaluation of environmental parameters─including pH gradients, ionic strength variations, and competitive ion interference─revealed robust performance under various aqueous conditions. In addition, FT-IR and XPS analyses were performed to characterize P-ZIF-8/PDA/MF both prior to adsorption and following the adsorption process in order to clarify its adsorption behavior. The analysis indicates that the uptake by P-ZIF-8/PDA/MF mainly proceeds through monolayer chemisorption, which results from the combined contributions of hydrogen-bond interactions, π–π stacking, and pH-dependent electrostatic attraction.
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高影响因子
INORGANIC CHEMISTRY
·
2026
·Vol. 65
·期 29
·16879-16886
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IF 4.6
Wu Jing,Wang Ruonan,Lin Haifeng,Xing Jun,Wang Lei,Xu Jixiang
In this work, a novel ternary heterojunction consisting
of Zn vacancy-rich
zinc oxide (Zn 1– x O), a zeolitic
imidazolate framework-8 (ZIF-8), and cobalt phthalocyanine (CoPc)
was fabricated for photocatalytic N 2 fixation. The Zn 1– x O/ZIF-8 composite with bridged O–Zn–N
bonding was synthesized via in situ growth of ZIF-8 on Zn 1– x O, and it possessed a large surface area favorable
for N 2 adsorption. The incorporation of CoPc with dispersed
Co–N 4 (II) sites enhanced light harvesting and N 2 activation. Zn vacancies and coupled type II/Z-scheme charge
transfer pathways in the heterojunction accelerated the separation
of photogenerated charge carriers. As a result, the optimized catalyst
exhibited superior and stable photocatalytic N 2 reduction
performance via an alternating pathway in water, with an NH 4 + production rate of 65.2 μmol g –1 h –1 , which is 17.0 times higher than that of ZnO.
This study develops a novel ZnO-based heterojunction that simultaneously
optimizes multiple key factors for efficient photocatalytic N 2 fixation.
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JOURNAL OF NANOBIOTECHNOLOGY
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2026
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IF 15
Bo Peng,Jing Yang,Rui Lin,Yuling Han,Hongning Wang,Runqi Zhou,Tong Yan,Shilin Liu,Hanwei Jiang,Yunshan Li,Tianshu Zhang,Yuhao Peng,Xinyu Xue,Huawei Shen,Jinlin Song,Ximu Zhang
Periodontitis is a prevalent chronic inflammatory disease that causes progressive periodontal tissue loss and systemic complications. However, conventional therapies often remove biofilms without fully resolving inflammation or regenerating tissue. Here, we report a flexible wireless ultrasonic patch loaded with ZIF-8 nanoparticles containing the anti-inflammatory antioxidant senkyunolide A (SenA@ZIF-8) for on-demand drug release. A piezoelectric transducer converts 1 MHz ultrasound into ≈ 10 V, 9 mA electrical output, heating a tridecanoic acid phase-change matrix to ≈ 43 °C to trigger SenA@ZIF-8 release. In vitro, SenA@ZIF-8 was biocompatible and outperformed free SenA in protecting periodontal ligament stem cells from H₂O₂-induced oxidative damage: it reduced intracellular ROS levels and restored the activity of antioxidant enzymes. In macrophages, ZIF-8 loading enhanced intracellular SenA uptake and markedly suppressed LPS-induced proinflammatory mediator expression while promoting M2 marker expression. In a rabbit model of ligature-induced periodontitis, repeated ultrasonic-triggered SenA@ZIF-8 delivery markedly reduced periodontal inflammation. Micro‑computed tomography (Micro-CT) and histology showed that the device-treated sites exhibited the greatest alveolar bone regeneration and collagen deposition, accompanied by minimal inflammation. This innovative MOF-based ultrasonic patch can relieve oxidative stress and inflammation through minimally invasive, precise, and on-demand drug delivery, thereby promoting periodontal regeneration. This approach has significant translational potential as an adjunct therapy to improve periodontal treatment outcomes and patient compliance.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Yu-Hang Gu,Kang Wu,Wei Mao,Jie-Xin Wang
Rotating packed bed (RPB) is firstly used for chemical synthesis of heterojunction. • ZnO/ZIF-8 heterojunctions achieve a record catalytic activity in PLA methanolysis. • RPB product has more oxygen vacancies and stronger Lewis acid than counterpart. • Lewis acid of ZnO and high surface area of ZIF-8 endow catalyst high activity. • Excellent activity covers various real-life polyester wastes and their mixtures. The chemical recycling of plastic is crucial for achieving a circular economy, and developing heterogeneous catalysts that combine high activity with structural stability represents a pivotal challenge. Herein, a high-gravity-assisted approach was proposed to efficiently construct ZnO/ZIF-8 (RPB-ZnO/ZIF-8) nanoheterojunctions enriched with oxygen vacancies (Ov) for polylactic acid (PLA) methanolysis to methyl lactate (MeLA). Compared to the stirred tank (ST), high-gravity synthesis drastically reduces coordination reaction time from 1 h to an extremely short time (< 1 s). The as-prepared RPB-ZnO/ZIF-8 catalyst achieved 100% PLA conversion at 100 °C in 0.5 h with a MeLA yield of 95.6%, reaching the highest activity compared to previous works so far. More importantly, it demonstrated excellent cycle stability, maintaining >92% of its initial activity after five cycles. Catalytic mechanistic investigations reveal that the Ov increases Lewis acidity of the heterojunction surface, thereby facilitating the reactants adsorption and activation, which leads to a reduction in the energy barrier for PLA methanolysis. Furthermore, RPB-ZnO/ZIF-8 catalyzes the depolymerization of other plastics effectively (e.g., polyethylene terephthalate and polycarbonate) and demonstrates remarkable versatility in converting various real-life polyester wastes and their mixtures. This study presents an efficient strategy for advancements in sustainable plastic recycling.
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Foods
·
2026
·Vol. 15
·期 16
·2772
·
IF 6
Guanru Yi,Shaoyu Lv,Longwei Fu,Zhixiang Xu,Shiyong Wang,Longhua Xu
Enrofloxacin residues in foods pose potential risks to food safety and public health, creating demand for rapid, sensitive, and matrix-compatible screening methods. All-inorganic CsPbBr3quantum dots (QDs) are promising fluorescent probes because of their strong photoluminescence, but their poor stability in polar media greatly restricts their practical use in food analysis. Herein, ZIF-8-confined and APTES-passivated CsPbBr3QDs were developed as an ethanol-compatible fluorescent sensor for enrofloxacin detection in foods. Unlike reported CsPbBr3@ZIF-8 systems mainly used for metal-ion sensing in aqueous media, this work integrates ZIF-8-confined in-situ growth with APTES-assisted silane passivation to improve the stability and applicability of CsPbBr3QDs in ethanol-based food extracts. ZIF-8 provided a confined microenvironment, while the APTES-derived silane layer further enhanced fluorescence stability. The sensor exhibited a distinct turn-off fluorescence response toward enrofloxacin, with a linear range of 0.1–25.0 mg·L−1and a limit of detection of 0.058 mg·L−1, mainly attributed to electron transfer with CsPbBr3@ZIF-8. The method was successfully applied to honey, milk, fish, and shrimp samples, achieving recoveries of 85.2–106.8%. Results obtained for aquatic products showed no significant difference from HPLC analysis (p> 0.05), demonstrating the potential of this sensor for rapid enrofloxacin residue screening in complex food matrices.
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JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·
IF 3.1
Zhibo Huang,Tiandi Pan,Haoxuan Mai,Ning Tang,Fei Sun,Peijian Du,Ni Li
Nanofibrous membranes have great potential for treating oily wastewater. However, the random stacking of nanofibers during the electrospinning process resulted in a broad pore size distribution and reduced separation efficiency. Moreover, for oil-in-water emulsions stabilized by ionic surfactants, the small oil droplets deform under the applied pressure and are squeezed into the membrane pores, leading to a decrease in flux and fouling. In this work, we developed superhydrophilic nanofibrous membranes with demulsification properties via electrospinning and a solvothermal seed-induced method. Notably, the incorporation of ZIF-8 nanoparticles offers multiple advantages, such as reducing membrane pore size, increasing the surface roughness, and enhancing membrane surface charge. These features synergistically improve both separation selectivity and demulsification properties. As a result, the membrane exhibits outstanding separation performance, achieving a separation efficiency of 96.37% for diesel-in-water emulsions and a high permeation flux of 4100 L m −2 h −1 for dichloromethane-in-water systems. This work provides an effective strategy for developing high-performance membranes for oil-in-water emulsions separation applications.
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JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Ping Shi,Xinghao Liu,Jian Qiu,Jian Lu,Wenbo Jiang,Weihu Zhang,Xingjian Sun,Mengying Ou,Jianfa Zhao,Yu Guo,Quanyu Zhao,Yuan Bai,Wenheng Jing
Microalgal carbon sequestration offers a promising pathway for CO 2 mitigation, yet its efficiency is largely constrained by inherently low gas-liquid mass transfer. Herein, we report an interfacial engineering strategy to construct a ZIF-8/MXene composite membrane via pressure-assisted filtration. The membrane features unique hydrophilic–hydrophobic channels, wherein hydrophilic MXene nanosheets and hydrophobic ZIF-8 nanosheets act synergistically to effectively decouple bubble refinement from mass transfer resistance. This structural design enables the stable generation of monodisperse CO 2 nanobubbles with a mode diameter of 118.2 nm and the concentration of 1.62 × 10 9 particles mL −1 . The potential electrostatic adsorption facilitated by natural divalent cations in the BG-11 medium significantly shortens the mass transfer distance. Consequently, this promotes the formation of a localized CO 2 pseudo supersaturated microenvironment around the microalgae. This localized CO 2 enrichment potentially downregulates the carbon-concentrating mechanism, suggesting a strategic reallocation of cellular energy toward accelerated biomass accumulation. Consequently, the integrated system achieves an unprecedented biomass productivity of 0.76 g L −1 , offering an innovative material-biological paradigm for light-driven carbon capture and utilization.
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JOURNAL OF HAZARDOUS MATERIALS
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2026
·
IF 10.6
Xuyang Duan,Hao Zhang,Chengyu Zhang,Liang Zhu,Guangbin Li,Zhaogang Zhang,Peng Zhou,Dongzhi Zhang
A Pd-ZnO@ZIF-8 heterostructured benzene gas-sensitive material was prepared. • The benzene sensor has a low detection limit, rapid detection and high stability. • Vision-olfactory robots have achieved intelligent inspection of leakage risks. Benzene (C 6 H 6 ) is a volatile organic compound with strong carcinogenicity, and achieving its rapid and sensitive detection is of great significance for environmental protection and the prevention and control of public health risks. In this study, a ternary heterostructure gas-sensing material composed of Pd-modified ZnO@ZIF-8 was proposed. The pre-concentration effect of ZIF-8, the catalytic sensitization of Pd nanoparticles, and the construction of the Schottky barrier at the Pd/ZIF-8 interface collectively endow the sensor with excellent detection performance. This sensor exhibits extremely high sensitivity at 375℃, with a rapid detection speed (response/recovery time of 2 s/2 s) and an extremely low detection limit (capable of reaching the ppb level). Meanwhile, based on this sensor, a pipeline condition monitoring platform was developed. On the mobile end, online monitoring of benzene leakage and graded early warning were realized. Furthermore, this detection system is integrated with robots. Through a combined olfactory and visual detection method, it enables intelligent inspection of the risks of gaseous and liquid benzene leakage. Therefore, the proposed Pd-ZnO@ZIF-8 sensor and its integrated monitoring platform offer a reliable and efficient solution for real-time benzene leakage detection, holding great promise for enhancing industrial safety and public health protection. Download: Download high-res image (236KB) Download: Download full-size image
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Wenhao Zhang,Chuanyi Zhou,Jiahao Cui,Canglou Liu,Yongfang Rao,Wei Yan
Current adsorbents for bisphenol A (BPA) require complex preparation and relatively low adsorption capacities. Here, a high-performance adsorbent (Fe-N-C) was synthesized from iron-modified zeolite imidazole frameworks-8 (ZIF-8) via pyrolysis. With an exceptionally high specific surface area of 1565.15 m 2 ·g −1 , Fe-N-C removed 90% of BPA within 10 min and achieved adsorption equilibrium within 3 h. Furthermore, Fe-N-C exhibited a maximum BPA theoretical adsorption capacity of 877.45 mg·g −1 (288 K). The adsorption kinetics and isotherms conform to pseudo-second-order kinetics and the Langmuir model. Fe-N-C also demonstrated excellent performance across a wide pH range (4–10) and in complex water matrix. The high adsorption capacity was primarily attributed to π-π interactions, along with hydrogen bonding, electrostatic interactions, and hydrophobic interactions. Notably, in addition to efficiently adsorbing BPA, Fe-N-C exhibited a high selectivity toward organic compounds with two benzene rings by π-π interactions, such as bisphenol B (BPB), 2,2-bis (4-aminophenyl) propane (BAPP) and diclofenac (DCF) due to the mediation of graphitized microdomains. This study provides a simple route to prepare high-capacity N-doped carbon adsorbents for the selective and rapid adsorption of specific structural pollutants.
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MICROPOROUS AND MESOPOROUS MATERIALS
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2026
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IF 4.5
Wanida Koo-amornpattana,Dumrongkiet Arthan,Dusit Promrug,Panchan Sricharoon,Prapat Pongkiatkul,Woranart Jonglertjunya,Nikom Klomkliang,Francis Verpoort,Somboon Chaemchuen
A straightforward method using the solid-solid thermal (SST) method to synthesize Cu@ZIF-8. • A green and environmental approach to large-scale engineering synthesis. • A feature surface structure of Cu@ZIF-8 as an effective antibacterial and robust material for environmental issues. • A new pathway on Cu@ZIF-8 interacts with bacterial membranes, resulting in cell death. A straightforward solid-solid thermal (SST) method was developed to incorporate copper into a zeolitic-imidazole framework-based zinc compound, resulting in Cu@Zn-ZIF-8. This strategy enables the synergistic integration of copper within the zinc-imidazolate host framework. The process achieves a maximum copper content reached 30%, a level unattainable by traditional solvothermal techniques, and exhibits uniform, robust copper incorporation. This one-step, solvent-free approach significantly increases product yield while maintaining a low metal-to-ligand ratio. The resulting Cu@Zn-ZIF-8 displays a highly crystalline structure with increased copper density. This method is readily scalable up to 1000 times the laboratory scale without compromising material quality. Furthermore, surface-generated reactive oxygen species (ROSs) on Cu@Zn-ZIF-8 significantly improve antibacterial efficacy (>99.9%) against both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus, outperforming unmodified ZIF-8 by 16–20 times. The hydrophobic properties of Cu@Zn-ZIF-8 also make it particularly well-suited for high-moisture environments. Download: Download high-res image (360KB) Download: Download full-size image
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