JOURNAL OF SEPARATION SCIENCE
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2026
·Vol. 49
·期 7
·e70470
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IF 3.6
Hanbing Li,Jie Wang,Yuyang Li,Yaming Li,Lei Yan,Sumei Li,Dayi Zhang,Yixuan Liang,Danyang Li,Xiaowei Wang,Sha Chen
A selective phase for tetracycline antibiotics (TAs) uptake was designed by incorporating [BMIM][PF 6 ]-functionalized ZIF-67-derived carbonaceous material into the diffusive gradients in a thin-films (DGT) device. This material, integrated in the binding gel of DGT (ta-DGT), exhibited specifically strong affinity toward tetracycline (TC), oxytetracycline (OTC), and chlortetracycline (CTC), with adsorption capacities of 12.22, 11.81, and 13.78 µg/disc, respectively. The ta-DGT showed preferential uptake of TAs over coexisting antibiotics and organic contaminants, with adsorption ratios above 80% and stable performance over pH 4–9 and ionic strength of 0.001–0.1 M. Mechanistic analysis indicated that π–π electron donor–acceptor interactions and cation–π bonding facilitated the specific targeting of TAs onto ta-DGT. During 7 days of field deployment in a domestic wastewater treatment plant in Beijing, ta-DGT showed 5–40 times higher detectable concentrations than conventional HLB/XAD DGT devices. These results validated its sensitivity, reliability, and feasibility for the selective separation and quantification of TAs in complex aqueous matrices.
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Nanoenergy Advances
·
2026
·Vol. 6
·期 3
·23
·
IF 4.2
Yuping Wu,Hu Fu,Bolin Li,Qinran Zhang,Zhirong Chen,Haichen Li,Hongming Zhou
Poly(ethylene oxide) (PEO)-based solid polymer electrolytes are regarded as highly promising solid electrolyte materials owing to their favorable chain flexibility. However, their practical application is hindered by low room-temperature ionic conductivity and poor mechanical properties. To address these issues, a metal–organic framework (Cu-MOF) with a 2D layered structure and 1D microchannels is introduced into PEO to form a composite solid electrolyte. The results reveal that Cu-MOF can suppress PEO crystallization through steric hindrance and coordination interactions, thereby increasing the fraction of the amorphous phase. Moreover, its unsaturated metal sites can attract TFSI−anions, promoting the dissociation of the sodium salt and enhancing sodium-ion transport. Theoretical calculations and molecular simulations further confirm the regulatory role of Cu-MOF in ion transport. Leveraging this mechanism, the Na3V2(PO4)3/C|PCM-8%|Na cell delivers exceptional electrochemical performance over a wide temperature range. At room temperature, the capacity exhibits virtually no decay after 200 cycles at 0.5 C, and outstanding rate capability is maintained even at a high rate of 4 C. At a temperature of 65 °C, a capacity retention of 91.4% is achieved after 200 cycles at 0.5 C. This study offers a highly promising strategy for the development of wide-temperature-range, high-performance solid-state sodium batteries.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Miaomiao Tian,Haochen Shen,Cheng Chen,Libo Zhao,Wei Yu,Bisheng Li,Leihong Zhao,Hongjun Lin,Liguo Shen
A controllable secondary growth repairs stress cracks in MOF membranes. • Capillary-driven precursors enable in situ nucleation and epitaxial crack healing. • Post-healing generates dense, crack-free, hydrophilic and charged layers. • Repaired membranes achieve high rejection and ultrahigh water flux simultaneously. • XDLVO analysis shows that repulsive interactions improve membrane antifouling. Metal–organic framework nanosheet membranes are promising for next-generation separations but remain limited by stress-induced cracking during fabrication and operation, which compromises structural integrity and separation reliability. Here we report a secondary growth strategy to heal cracks in membranes assembled from two-dimensional Zr-MOF nanosheets while enhancing structural robustness and separation performance. Capillary forces draw precursor solutions containing metal ions and organic linkers into preexisting stress-induced cracks. The subsequent secondary growth infills these defects, healing the cracked regions and restoring a dense, continuous selective layer. This post-fabrication repair strengthens intercrystalline connectivity without introducing thick sealing layers that impede water transport, thereby recovering both high solute rejection and permeability. Crack healing and membrane densification are achieved at an optimal nanosheet loading, whereas excessive loading leads to stress accumulation and renewed structural instability. The optimized membranes exhibit a continuous crack-free selective layer with increased thickness, enhanced hydrophilicity, and a higher negative surface charge. Compared with the primary Zr-MOF membrane (P-Zr-MOF), the repaired membrane (SG-Zr-MOF) achieves a tannic acid rejection of 96.8% with a water flux of 481.9 L m −2 h −1 bar −1 , together with improved mechanical flexibility and antifouling performance. This strategy couples defect repair with performance enhancement and provides a practical route for developing stable and efficient MOF membranes for sustainable water treatment. Download: Download high-res image (190KB) Download: Download full-size image
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ANALYTICA CHIMICA ACTA
·
2026
·
IF 6.1
Kaiqiang Yang,Junlei Liu,Wenyan Zhang,Wenying Li,Wei Xu
Flavonoids are important natural bioactive compounds with remarkable health benefits, requiring rapid and accurate detection for food nutrition assessment and quality control. However, it remains challenging to simultaneously discriminate multiple flavonoids in complex matrices. Taking inspiration from the tunable structures of MOF-based nanozymes and the ability of sensor arrays to simultaneously detect multiple substances, we herein propose an innovative four-channel colorimetric sensor array for flavonoid identification. Four copper-based MOF nanozymes (Cu-ImC 2 N, Cu-ImC 2 , Cu-ImCl 2 , Cu-ImPh) were synthesized with different imidazole derivatives as ligands, showing significant differences in their peroxidase-like activities. Exploiting their specific catalytic activity variations at pH 6.0 and 6.5, the two most active nanozymes (Cu-ImC 2 N and Cu-ImC 2 ) were strategically selected to construct the array. Upon processing the array data with linear discriminant analysis (LDA), the array achieved 100% accurate discrimination and quantitative detection of seven flavonoids, with limits of detection (LODs) ranging from 0.039 to 0.982 μM. Furthermore, comparisons of concentration-independent models built with multiple machine learning algorithms showed that the K-nearest neighbors (KNN) method outperformed LDA, effectively reducing interference from concentration variations. The sensor array was successfully applied to the analysis of commercial soy milk, reliably differentiating products from different brands and bean sources (e.g., soybean and mung bean). This strategy surpasses traditional single-analyte methods and holds substantial practical potential for the rapid on-site detection of complex food systems.
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CONSTRUCTION AND BUILDING MATERIALS
·
2026
·
IF 8.9
Jian Jia,Tao Liu,Mei-Ling Xu,Xiao-Jie Jiang,Li-Na Zhang,Xin Cheng
The utilization of industrial solid waste for the preparation of pavement base materials is an effective pathway toward sustainable development. However, graphite tailings exhibit a low plasticity index, leading to difficulties in compaction and a high tendency to crack when used in base layers. Although red mud can be introduced to improve plasticity, its large-scale application is restricted by the leaching risk of Pb(II). To overcome this contradiction, a hydrophobic metal–organic framework (MOF), MIL‑101‑NH 2 ‑H, was designed and synthesized in this study with the dual aim of stabilizing heavy metals and improving the drying shrinkage behavior of the composite base material. The results show that MIL-101-NH 2 -H exhibits excellent Pb(II) adsorption performance. The lead concentration in the leachate of the mixture treated with 0.1 wt% MIL-101-NH 2 -H is below 0.1 mg/L, meeting the Class IV groundwater standard for agricultural water in GB/T 14848–2017, while that of the control group (3.64 mg/L) far exceeds the limit. For engineering properties, the control group shows a 7 days UCS of 3.3 MPa and a drying shrinkage strain of 706 × 10 −6 . At 0.1 wt% dosage, MIL-101 and MIL-101-NH 2 present comparable mechanical and shrinkage behaviors to the control, whereas MIL-101-NH 2 -H increases the 7 days water-immersed UCS by 26.5% and reduces the drying shrinkage strain by 38.7%. This improvement is attributed to the hydrophobic functional groups of MIL-101-NH 2 -H, which hinder water transport, thereby suppressing the development of capillary tension and reducing the surface tension of the pore solution-fundamental factors in mitigating drying shrinkage. In addition, the chelation/coordination interaction between amino groups in MIL‑101‑NH 2 ‑H and Pb(II) provides abundant active adsorption sites, effectively decreasing the leaching of Pb(II) ions. Overall, this study indicates that MIL-101-NH 2 -H, as a multifunctional additive, can synergistically enhance the mechanical properties, volumetric stability, and environmental safety of solid waste-based pavement base materials, offering an innovative strategy for the high-value utilization of industrial solid waste.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Peng Luo,Yang-Biao Xue,Wu Bin,Lin-Feng Gu,Hai-Tao Jiang,Mei-kun Ke,Yi-Fei Xu,Zuo-Shan Wang,Min Zheng
The rapid expansion of wearable and portable electronics has driven increasing demand for fiber-based moisture electricity generators (FMEGs) capable of operating under ambient conditions. However, achieving efficient ion generation, directional transport, and charge separation simultaneously in fibrous architectures remains challenging due to the absence of coordinated structural design. Here, a hierarchical FMEG is constructed by integrating a bilayer hygroscopic hydrogel with vertically aligned zeolitic imidazolate framework-L (ZIF-L) nanosheet arrays via in situ growth and cyclic freeze-thaw assembly. The bilayer hydrogel establishes coupled water and proton concentration gradients to provide a sustained driving force for ion migration, while the ZIF-L nanosheet channels enable selective ion transport and improve interfacial charge regulation. Benefiting from this synergistic architecture, the device delivers an open-circuit voltage of ∼0.9 V and a power density of 82.3 µW cm −2 , while maintaining stable operation over 90 h under ambient conditions. Furthermore, the device can be woven into textiles to power electronic devices and enable self-powered finger motion encoding and respiration monitoring. This work provides a generalizable structural paradigm for constructing high-performance FMEGs for wearable energy harvesting and sensing systems.
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 7
·458
·
IF 5.4
Zhou Yaqiu,Zhu Linlian,Li Mengwei,Yao Yi,Su Mengjie,Wu Zengqiang,Yu Chunmei
A flexible electrochemical sensing platform on the basis of carbon cloth modified with zeolite imidazole framework-67/carbon nanotubes nanocomposite with catalase-like activity was developed for in situ and real-time tracking of H 2 O 2 produced by living cells. The obtained sensor exhibits excellent electrochemical performance for detecting H 2 O 2 with a broad linear response range from 1 µM to 5.2 mM and a detection limit of 0.3 µM. Owing to the favorable biocompatibility and mechanical stability of the prepared electrodes, living cells can be proliferated well on their surfaces, thereby achieving in situ and real-time profiling of endogenous H 2 O 2 flux from normal and cancer cells. This work proposed a novel sensing platform for extracellular analysis, providing an innovative tool for the dynamic monitoring of biomarkers generated by cellular metabolism in cell biology. Graphical abstract The alternative text for this image may have been generated using AI.
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ACS Catalysis
·
2026
·Vol. 16
·期 16
·16350-16361
·
IF 13.6
Sun Qiufan,Zhu Yuxiang,Zhang Yuanzheng,Ren Hanjie,Chen Yiyang,Zhong Xiang,Xu Sai,Cui Entian,Liang Yuhang,Yao Jianfeng
Bimetallic engineering in metal−organic frameworks (MOFs) offers a powerful strategy to enhance photocatalytic nitrogen fixation by optimizing electronic structure and facilitating directional charge transfer. This work reports a rational design of CoM-MOF-74 (M = Fe, Cd, Mg) catalysts synthesized via a solvothermal method. Among them, CoFe 0.25 -MOF-74 (Co:Fe = 4:1) microrods deliver the best performance, achieving an ammonia production rate of 120 μmol g cat −1 h −1 with an apparent quantum efficiency of 1.63% at 420 nm. The catalyst sustains high activity under outdoor sunlight and remains effective in multiple water environments. Mechanistic studies reveal that Fe incorporation alters the coordination environment while enabling synergistic Fe→Co charge transfer. This cooperative effect strengthens N 2 activation at the neighboring Co sites and concurrently suppresses the competing hydrogen evolution reaction. This work highlights metal-to-metal charge transfer in MOFs as a fundamental strategy for constructing efficient and durable photocatalysts for solar-driven ammonia synthesis.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Chenxuan Ai,Xueli Yang
MOF-derived ZnO and Au-ZnO materials were synthesized via a coprecipitation method. • The response value of 0.5 wt% Au-ZnO to 100 ppm n-butanol is 649.77 at 250 °C. • Response time is just one second, enabling real-time detection of n-butanol. • This sensor has a low detectable concentration, excellent selectivity and stability. N-butanol is a flammable volatile organic compound (VOCs) posing potential threats to human health and environmental quality, making its real-time detection critically important. Although Au-functionalized MOF-derived ZnO has been investigated for gas sensing, the influence of Au loading on surface-defect regulation and n-butanol sensing behavior remains insufficiently understood. Herein, porous ZnO rhombic dodecahedra derived from ZIF-8 were functionalized with controlled Au loadings of 0.25, 0.5, and 0.75 wt%. The optimized 0.5 wt% Au-ZnO sensor exhibited a response of 649.77 and a response time of 1 s towards 100 ppm n-butanol at 250 °C, with the response being approximately 3.6 times that of pristine ZnO. A measurable response of 1.41 was obtained at 50 ppb, representing the lowest experimentally verified concentration in this study. The sensor also demonstrated good selectivity, repeatability, and long-term stability. XPS analysis showed that the 0.5 wt% Au-ZnO sample possessed the highest relative oxygen-vacancy content of 34.8%. DFT calculations further suggested a stronger adsorption tendency of n-butanol on the Au-ZnO surface than on pristine ZnO. These results demonstrate that controlled Au loading provides a favorable balance among interfacial charge modulation, oxygen-vacancy regulation, catalytic activity, and adsorption-desorption kinetics. The dodecahedral structure of the MOF-derived ZnO confers high sensitivity to n-butanol on the sensor, providing uniform anchoring sites for gold nanoparticles (Au NPs). Through Schottky barrier modulation, catalytic effects and oxygen vacancy enhancement, the modification with Au NPs further improves the capture efficiency and signal amplification for n-butanol concentrations in the ppb range. Download: Download high-res image (231KB) Download: Download full-size image
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JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Honghao Su,Fusheng Pan,Siwei Wang,Han Zhang,Yuhang Guo,Hao Qi,Jing Huang,Zhijie Yuan,Zhanquan Zhang,Zhongyi Jiang
The energy-efficient separation of chemically similar aromatic/alkane mixtures is pivotal for modern molecular refining, yet polymeric membranes are perennially constrained by the permeability-selectivity trade-off. To circumvent this bottleneck, we report an interfacial engineering strategy utilizing size-tunable MOF (Cu-TCPP, TCPP: tetrakis (4-carboxyphenyl)porphyrin) nanosheets to engineer selective interfacial transport channels in hybrid membranes. By modulating the reaction time, the size-to-thickness ratio of the nanosheets was precisely regulated. Crucially, the sub-nanopores (0.38 nm) of Cu-TCPP preclude transport through intrinsic pore channels, thereby indicating that molecular transport preferentially occurs through MOF-polymer interfacial regions. This architecture establishes a synergistic mechanism of geometric exclusion and facilitated transport. Our results reveal that the extended diffusion pathways, dictated by the lateral sizes of the 2D nanosheets, significantly enhance geometric exclusion for n -heptane. Meanwhile, the abundant MOF active sites provide low-resistance transport channels for toluene through preferential interaction. Consequently, at an ultralow loading of 0.1 wt%, the optimized membrane achieved an exceptional flux (1170 g m −2 h −1 ) and a separation factor (6.17) for a toluene/ n -heptane mixture, with robust stability over 160 h. This work provides an effective approach for exploiting 2D nanomaterials to engineer interfacial transport channels for challenging molecular separations.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Haonan Li,Yongfeng Li,Yanzhen Liu,Jiechen Guo,Zonglin Yi
Metal-organic framework (MOF)-derived composite nanostructures hold significant promise for high-performance supercapacitor (SC) electrodes due to their tunable porosity, abundant active sites, and compositional versatility. In this work, a hierarchical CoP-CNTs hybrid material was synthesized via a multi-step strategy using a ZIF-8@ZIF-67 core–shell precursor. The resulting structure integrates nitrogen-doped carbon frameworks, in situ grown carbon nanotubes (CNTs), and uniformly dispersed cobalt phosphide (CoP) nanoparticles, forming a well-defined hollow polyhedral architecture with a high specific surface area, interconnected mesopores, and electron-rich active sites. These structural features induce strong synergistic effects among the CNT network, CoP nanocrystals, and porous carbon matrix, collectively enhancing ionic transport, electronic conductivity, and redox activity. As a result, the CoP-CNTs electrode delivers a high specific capacitance of 590.8F g −1 at 0.5 A g −1 and maintains 96.8% of its capacitance at 5 A g −1 . Kinetic analysis reveals a hybrid charge storage mechanism dominated by surface-controlled pseudocapacitance. Assembled into a CoP-CNTs//AC asymmetric SC (ASC), the device achieves an energy density of 34.4 Wh kg −1 at 400 W kg −1 and 24.4 Wh kg −1 at 4000.5 W kg −1 , with 84.1% capacitance retention after 10,000 cycles. This work demonstrates the promise of MOF-derived CoP-CNTs hybrids for scalable, high-performance energy storage systems.
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Materials Today Bio
·
2026
·
IF 11
Yun Qu,Jingjing Zhang,Haixia Ou,Yuting Yan,Ruiping Zhang,Jinghua Sun
Reactive oxygen species (ROS)-triggered oxidative stress, inflammatory responses, and overactivation of immune cells are critical factors exacerbating acute lung injury (ALI). Conventional clinical therapies are often limited by non-specificity, single-target limitations, and significant side effects to precisely modulate the complex pathological microenvironment. Here, we designed a hyaluronic acid-engineered nanoreactor (HA@MZ) through in situ encapsulation of melanin (MA) within ZIF-67, allowing multi-target synergistic therapy of ALI. The HA coating facilitates mucus penetration and targeted accumulation in injured lungs, exhibiting good biocompatibility. Under acidic inflammatory conditions, HA@MZ responsively releases MA, which efficiently scavenges ROS. This process activates Nrf2/HO-1 and GPX4 pathways while inhibiting NF-κB driven inflammation and M1 macrophage polarization, leading to reduced lipid peroxidation and recovery of redox and immune balance. Both in vitro and in vivo results confirm the lung microenvironment-balancing capacity of HA@MZ, offering a promising nanotherapeutic strategy for ALI and other inflammatory diseases.
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