Nanomaterials
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2026
·Vol. 16
·期 7
·398
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IF 4.8
Weiao Li,Litiao Ren,Yuqi Zhao,Xinping Cong,Mingjin Zhang,Yan Liu,Qihui Shen,Xiaoyang Liu
Herein, an electrochemical sensor is reported for the first time based on an ordered macro–microporous composite derived from metal–organic frameworks (MOFs) for the highly sensitive detection of auramine O (AO), a Group 2B carcinogen. The hierarchical pore architecture, integrating an ordered macroporous network with a microporous ZIF-8 framework, enables the uniform dispersion of a high density of catalytically active sites. The interconnected macroporous channels facilitate efficient mass transport and rapid removal of reaction byproducts, effectively preventing pore blockage and ensuring stable sensing performance during repeated measurements. Owing to these structural advantages, the proposed sensor exhibits outstanding analytical performance toward AO detection, with a sensitivity of 0.4843 μA μM−1, a detection limit of 0.168 μM (S/N = 3), and a wide linear range from 0.5 to 50 μM. Moreover, the sensor demonstrates excellent selectivity and reproducibility, maintaining reliable responses even in the presence of 100-fold excess common food constituents such as tartrazine and glucose. Real sample analysis further confirms its high accuracy and operational stability. Overall, the electrochemical sensor based on silver nanoparticle-decorated ordered macro–microporous ZIF-8 synthesized via in situ reduction shows great potential as a portable and on-site tool for rapid AO detection in food. More broadly, ordered macro–microporous MOF-derived materials represent a promising platform for advanced electrochemical sensor applications.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Xin Yan,Pengtao Guo,Youbin Zhou,Ting Wang,Xianren Zhang,Yunpan Ying,Qingyuan Yang,Dahuan Liu
As the CO2 concentration in the atmosphere is relatively low, directly capturing CO2 from the air remains a challenge. Herein, a dual-functionalized strategy is developed to construct a series of IL@ZIF-8 composite materials by regulating the spatial distribution of nitrogen sites of the anion and the amine content of the cation in the ionic liquid (IL). The introduction of functional sites significantly enhances the capture capability of composite materials toward low-concentration CO2. The IL composed of pyrazole (Py) with adjacent nitrogen sites exhibits stronger interaction with CO2 due to its lower viscosity and higher electron cloud density. The IL@ZIF-8 constructed with tetraethylenepentamine (TEPA) as the cation and Py demonstrates optimal CO2 capture capability, which is attributed to TEPA’s balance of abundant amine groups and moderate viscosity. [TEPA][Py]@ZIF-8 exhibits a remarkable dynamic CO2 capture capacity under simulated air conditions, and in situ FT-IR analysis reveals its reversible adsorption mechanism. This study provides a new strategy for the development of novel adsorbents for low-concentration CO2 capture.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Lijie Wang,Zixuan Wang,Jiarong Chang,Zhiyue Zhou,Xihan Wang,Zhaoming Li,Dawei Li,Fang Wang,Wen Zhang,Kannapathirage Dilini Maheshika Gunarathne,Xin Meng
Infected skin wound healing involves a series of dynamic and complex physiological processes. In this study, we reported a dissolvable microneedle (MN) with pullulan as the matrix material. The antimicrobial peptide LL37 was immobilized in situ within ZIF-8 to form hybrid nanoparticle LL37@ZIF-8 (LZ). This nanoparticle was then loaded onto the tip of the microneedle along with Prussian Blue (PB) nanozymes to obtain PB+LZ@MN, which exhibits both antimicrobial and antioxidative activities, for the healing of infected skin wounds. The MN, with good mechanical properties, could rapidly dissolve its tip upon insertion into the skin, releasing LZ and PB into the wound within 3 min. The MN had good physicochemical properties and biocompatibility and was shown to reduce inflammation and stimulate angiogenesis by enhancing collagen deposition and re-epithelialization in the Sprague-Dawley (SD) rat skin defect infection model. On the 10th day of wound healing, the healing rate of the PB+LZ@MN group was as high as 99%, which was significantly higher than that of the control at 84%, significantly accelerating the healing of the infected wound. This multifunctional MN is expected to provide a competitive biomaterial for accelerated infected wound healing.
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INORGANIC CHEMISTRY COMMUNICATIONS
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2025
·
IF 5.4
Shaohui Huang,Jin Li
In order to solve the problems of insufficiently rapid response and recovery and poor moisture resistance when zinc oxide is used as a gas sensitive material, a flexible frame material with hydrophobicity, ZIF-8, was introduced to modify the surface of ZnO, and then doped Ag nanoparticles, which can be electron sensitized with ammonia, to obtain Ag modified ZnO@ZIF-8 nanoparticles. At room temperature (RT, ∼25 °C), the response time of ZnO, ZnO@ZIF-8, and Ag modified ZnO@ZIF-8 nanoparticles to 500 ppm ammonia is 74.3 s, 20.2 s, and 8.0 s, and the recovery time is 36.0 s, 23.1 s, and 16.8 s, respectively. The fitting detection limit of Ag modified ZnO@ZIF-8 nanoparticles for ammonia was 83 ppm. Compared with pure ZnO, the moisture resistance of ZnO@ZIF-8 and Ag modified ZnO@ZIF-8 was significantly improved after coating with ZIF-8.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Weidong Li,Weifeng Luo,Yueping Wei,Rongai Huang,Wei Shang,Jiqiong Jiang,Yuqing Wen
Superhydrophobic coatings have emerged as a primary strategy for protecting magnesium alloys. However, their application is often hindered by reliance on harmful fluorinated materials. In this study, a fluorine-free ZnO/ZIF-8 composite coating was fabricated on magnesium alloy surfaces via electrodeposition. By leveraging synergistic effects between ZnO nanostructure roughness and ZIF-8's intrinsic hydrophobicity, superhydrophobicity was achieved without fluorinated surface modifications. Results demonstrate excellent hydrophobic stability, with superhydrophobicity maintained under low-temperature conditions. The water contact angle remained unchanged in sodium chloride solutions of varying concentrations, indicating exceptional salt-induced corrosion resistance. Furthermore, the coating exhibited hydrophilic-hydrophobic transition properties. Electrochemical tests confirmed superior corrosion resistance, showing a corrosion current density of 3.964 × 10 −9 A∙cm −2 and a four-order-of-magnitude increase in charge transfer resistance versus the AZ91D substrate. Molecular dynamics (MD) simulations and density functional theory (DFT) calculations elucidated the corrosion protection mechanism, providing theoretical support for experimental findings. This study integrates experimental and theoretical approaches, offering new insights and technical references for fluorine-free superhydrophobic coatings in magnesium alloy corrosion protection.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Xiaomin Guo,Wei Wang,Huan Lyu,Xiuling Zhang,Chunhui Li,Fan Yang,Mingxin Zhou,Yongzheng Zhang,Dongyang Miao,Ruiyun Zhang
The selective removal of dyes from wastewater remains a critical challenge due to the structural complexity and persistence of dye molecules. In this work, a polyethyleneimine (PEI)-functionalized ZIF-8 hybrid nanofibrous membrane was fabricated via a seed-assisted secondary growth strategy, aiming to achieve high selectivity toward anionic dyes. Synergistic interactions between the porous metal-organic framework (MOF) grown on the surface and the polymer functional groups enable efficient and selective adsorption of anionic dyes. Adsorption experiments demonstrated that the hybrid membrane exhibited high adsorption capacities for anionic dyes, reaching 506.48 and 929.30 mg·g −1 for Congo red (CR) and methyl orange (MO), respectively. In contrast, significantly lower adsorption capacities were observed for cationic dyes (rhodamine B, RhB and methylene blue, MB). Moreover, the membrane maintained strong selectivity toward anionic dyes in mixed dye systems containing all four dyes and retained over 80 % removal efficiency for CR and MO after ten consecutive adsorption–desorption cycles. Additionally, the membrane exhibits superhydrophilicity, excellent water stability, enhanced mechanical properties, and antibacterial activity, highlighting its potential for advanced wastewater treatment, particularly in the remediation of dye effluents. This work also provides valuable insights into the practical application of MOF-based composite materials.
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PEST MANAGEMENT SCIENCE
·
2025
·
IF 3.8
Xunliang Huang,Weiqiang Tian,Hao Jiang,Yue Xing,Ya Pu,Zhongwei Liu,Song Yang,Zhensheng Kang,Lin Cai
BACKGROUND Fungal phytopathogens pose a significant threat to global crop yields. The overuse of pesticides leads to pesticide-resistant pathogens, environmental contamination and risks to human health. Consequently, there is an urgent need for effective and ecofriendly antifungal strategies to address these challenges. RESULTS Herein, ZnO-ZIF-8 is synthesized via an in situ growth method to integrate the antifungal property of zinc oxide (ZnO) and the control release property of zeolitic imidazolate framework (ZIF)-8. Results suggest that the inhibition rates of ZnO, ZIF-8 and ZnO-ZIF-8 against Alternaria alternata are 44.4%, 74.1% and 94.4%, respectively, indicating that ZnO-ZIF-8 exhibits the most potent antifungal activity. ZnO-ZIF-8 also causes distortion and fracture of mycelia, significantly impairing spore germination and inhibiting germ tube elongation. CONCLUSION The potential antifungal mechanisms of ZnO-ZIF-8 involve the disruption of fungal cell morphology and structure through the release of Zn 2+ , ultimately leading to fungal cell death. Biosafety assessments indicate that the application of ZnO-ZIF-8 exhibits negligible effects on tobacco seeds and plants. This study provides valuable insights for the effective management of plant fungal diseases and supports sustainable agricultural development. © 2025 Society of Chemical Industry.
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY
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2026
·
IF 4.1
Xie Zhoujian,Wu Jiawen,Huang Kejing,Tan Xuecai
Growing needs for monitoring kanamycin (KAN) residues in food require ultrasensitive, field-deployable determination platforms. Herein, we present a universal photoelectrochemical (PEC) aptasensing strategy that synergizes ZIF-8/Bi 2 S 3 heterostructure-engineered photoelectrodes with strand displacement–triggered biocatalytic signal amplification. The urchin-like ZIF-8/Bi 2 S 3 heterojunction, synthesized through in situ MOF growth on semiconductor nanoarchitectures, demonstrates exceptional photocurrent generation via facilitated carrier separation achieved by directional electron transfer from Bi 2 S 3 to ZIF-8 and hole scavenging by ascorbic acid. Capitalizing on aptamer-target recognition in homogeneous phase, KAN concentration is transduced into messenger DNA (S2) through displacement dynamics, overcoming steric limitations of conventional solid-phase biosensing. The liberated S2 hybridizes with electrode-immobilized S1 to assemble MnPP-loaded dsDNA, where the mimic enzyme catalyzes H 2 O 2 -driven precipitation of benzo-4-chlorohexadienone (4-CD). This biocatalytic insulation layer induces quantifiable photocurrent attenuation proportional to KAN levels (10–1.0 × 10 6 nmol/L), achieving a 0.1 nM detection limit superior to ELISA and HPLC. The platform demonstrates 95.7–105.4% recovery in milk matrices and cross-reactivity below 5.8% against structural analogs, validating its specificity. By integrating MOF-semiconductor interfacial engineering with homogeneous-to-heterogeneous signal translation, this work establishes a paradigm for antibiotic monitoring that bridges laboratory innovation with on-site applicability. Graphical abstract
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JOURNAL OF NUCLEAR MATERIALS
·
2026
·
IF 3.3
Fenglei Wang,Chaofan Jiang,Wenting Liu,Yuchen Jiang,Huimin Li,Yuanhua Wang,Yongdong Jin,Chuanqin Xia,Lijian Ma
Amorphous zeolite imidazolate framework-8 shows excellent leaching resistance for Eu3+, Th4+, and UO22+ in acidic conditions. • Compressed pores and ion hydrolysis work together to immobilize radionuclides. • A low‑energy, environmentally friendly way that could effectively immobilize Eu3+, Th4+, and UO22+ at room temperature. The proper treatment of high-level liquid waste (HLW) was critical for the sustainability of the nuclear industry. Conventional immobilization methods (glass, cement, and ceramic) had limitations such as high energy consumption, volatile radionuclide release, or waste volume increase. Here, we reported a new strategy to immobilize key radionuclides using zeolitic imidazolate framework-8 (ZIF-8) under high pressure at room temperature, addressing limitations of conventional immobilization. ZIF-8 could be loaded with 10 wt% representative radionuclides (Cs + , Sr 2+ , Eu 3+ , Th 4+ , UO 2 2+ ) and ReO 4 - (a 99 TcO 4 - surrogate), then was amorphized under 1.2 GPa to form glassy ZIF-8 (ZIF-8-G). Finally, after leaching by deionized water or pH = 2 HNO 3 for 42 days, in both leaching solutions, Eu 3+ , Th 4+ , and UO 2 2+ were undetectable, due to their strong interactions with the N-Zn bonds in ZIF-8-G and their hydrolysis into insoluble hydroxides during the heating and loading process, which were then immobilized within ZIF-8-G under high pressure; ≈12% ReO 4 - was leached out because of the larger ionic diameter of ReO 4 - (3∼4 Å)than the pore size of ZIF-8-G (< 3.6 Å); While Cs + and Sr 2+ were completely leached out due to the smaller ionic diameter of Cs + and Sr 2+ (< 3 Å). Compared with conventional immobilization techniques, this technology offers advantages including low-cost raw materials, scalability for large-scale industrial production, simple processing, and environmental friendliness. Download: Download high-res image (281KB) Download: Download full-size image
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JOURNAL OF CATALYSIS
·
2022
·
IF 8.047
Jun-Fei Gu,Cheng Chen,Zhong-Hui Zheng,Jing Hang,Wei Sang,Ji-Chao Wang,Ye Yuan,Somboon Chaemchuen,Francis Verpoort
Zeolitic imidazolate framework-8 (ZIF-8) is a representative Zn-based metal–organic framework (MOF) featuring high porosity, good stability, and large surface area. Owing to these fascinating properties, ZIF-8 exhibits promising potential in catalysis. With our continuous interest in catalyst development of alcohol-involving green transformations, we intended to exploit the capability of ZIF-8 in catalyzing the acceptorless dehydrogenation of alcohols to carboxylates. The preparation of ZIF-8 at room temperature possesses advantages such as environmental friendliness and easy operation. Subsequently, various techniques were adopted to characterize the structures, morphology, and chemical states of both fresh and reused catalysts. Notably, the catalyst displayed good reusability since it could be reused at least 5 times without considerable loss of catalytic activity. It was also perceived that KOH was an indispensable component of this catalytic process. More specifically, KOH not only worked as one of the starting materials but also provided the basic environment to promote this catalysis. Furthermore, the aldehyde was confirmed as a key intermediate for this catalytic process. Based on additional experiments and literature reports, we proposed [Zn–N] as the active sites and presented a plausible catalytic cycle.
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MICROPOROUS AND MESOPOROUS MATERIALS
·
2022
·
IF 5.876
Tao Yan,Jianhua Yang,Jinming Lu,Liang Zhou,Yan Zhang,Gaohong He
Due to the poor heterogeneous nucleation properties of MOFs crystal on ceramic substrates resulting from the absence of interaction of MOFs with support substrate surface, it is usually difficult to prepare well-intergrown MOF membranes on substrate by simple in situ growth. In this work, a novel synthesis strategy was used to prepare defect-free ZIF-8 membranes on α-Al 2 O 3 supports by depositing gold particles modified with 2-mercaptoimidazole which creates pseudo-surfaces to bridge the metal centers with support. The end groups of the 2-mercaptoimidazole guides the heterogeneous nuclei to the support surface as homologous-like ligands. Furthermore, investigation of the metal sources revealed that the ZIF-8 membranes prepared with Zn(OAc) 2 as the zinc source possessed more continuous and well-intergrown ZIF-8 membranes with a thickness of about 1 μm compared to other zinc sources. The results of gas separation performance show that the optimized ZIF-8 membranes possess high hydrogen permeance and thermal stability. The gas separation selectivity for binary H 2 /CH 4 mixture reached 20.8 at 150 °C and 1 bar, with a high H 2 permeance of about 6.15 × 10 −7 mol m −2 s −1 Pa −1 , which is promising for hydrogen separation and purification. Moreover, free-organic solvents and room temperature growth by our strategy dramatically reduces the difficulty of preparation and environmental destruction, thus offering a new avenue to prepare MOFs membrane with good separation performance.
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CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Chunhua Li,Fuli Wang,Xiao Xu,Yubo Shi,Jinshuo Liang,Ruoshan Yang,Jue Liu,Zhilei Zhao
The misuse of ciprofloxacin (CIP) poses significant risks to our ecosystems by causing serious environmental pollution and the development of antibiotic-resistant bacteria, which requires effective remediation technologies. Herein, we developed a composite material (CMC/CoNiFe-LDH/ZIF-8, abbreviated as CLZ) of loading layered double hydroxide (CoNiFe-LDH) decorating zeolitic imidazolate framework (ZIF-8) on the carboxymethylcellulose sodium (CMC) aerogel as an adsorbent for CIP removal. The CMC aerogel in the composite provided a porous structure as the growth template of CoNiFe-LDH, while CoNiFe-LDH provided growing points for ZIF-8, and ZIF-8 could be used as a carrier for loading CIP, resulting in a high adsorption property of CLZ with optimized mass ratios of CMC/CoNiFe-LDH aerogels and ZIF-8 at 5:1 (denoted as CLZ-1). The adsorption process of CLZ-1 followed the pseudo-second-order kinetic model and Langmuir isotherm model, and the maximum capacity of CLZ-1 to adsorb CIP was 1397.5 mg·g −1 . The results of characterization, data fitting and parameter revealed that strong hydrogen bonding, complexation of unsaturated metals, electrostatic interaction, and π–π stacking between CLZ-1 and CIP were the main mechanisms for CIP adsorption. In addition, the CLZ-1 was successfully used as a solid phase extraction material combined with high performance liquid chromatography (HPLC) for the detection of CIP. Meanwhile, the CLZ-1 adsorbed CIP showed excellent antibacterial activity. Hence, CLZ-1 demonstrated great potential and promising practicability in separation and removal of antibiotic contaminants.
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