MOLECULES
·
2025
·Vol. 30
·期 24
·
IF 4.6
Yanfeng Zhang,Yong Huang,Han Leng,Xuwei Chen
The photo-Fenton process is an advanced oxidation method widely employed in environmental remediation. Herein, we developed a novel metal–organic framework@hydrogen-bonded organic framework (MOF/HOF) composite with excellent photo-Fenton-like activity for the efficient degradation of organic dye methylene blue (MB). Cu-based MOF (CuBTC) was firstly prepared via the solvothermal method, then melamine (MA) and trimesic acid (TMA)-based HOF (MA-TMA) was grown in situ on CuBTC with hydrogen bonding interactions to produce the MOF/HOF composite CuBTC-MA. The CuBTC-MA composite could catalyze H2O2to produce active substances for efficient MB degradation. The degradation rate constant of the CuBTC-MA composite was 4.4 times and 16.7 times higher than that of CuBTC and MA-TMA. The remarkably enhanced performance was attributed to the synergistic effect between the efficient separation of electron–holes supported by the type-II heterojunction structure of the CuBTC-MA composite and the Cu(I)/Cu(II) inter-conversion. The CuBTC-MA composite demonstrated exceptional repeatability and maintained a stable performance across a broad pH range. This study provided a novel paradigm for engineering heterogeneous MOF/HOF heterostructures, demonstrating significant potential in advancing photo-Fenton-like catalytic systems for the efficient environmental remediation of organic pollutants through synergistic charge separation and radical generation mechanisms.
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高影响因子
ANALYST
·
2025
·
IF 3.3
Chenyao Lin,Qiaoping Wu,Menglu Mao,Xuedan Qiu,Chuanfan Ding,Yinghua Yan,Dumei Ma,Qingcao Li
The global rise of carbapenemase-producing Klebsiella pneumoniae (CPKP) poses a major threat to public health due to its high morbidity and mortality rates, driven largely by the production of carbapenemase enzymes. Rapid and accurate detection of carbapenemase activity is crucial for guiding appropriate antimicrobial therapy and controlling nosocomial transmission. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) enables direct detection of carbapenem hydrolysis but is currently limited by the drawbacks of conventional organic matrices, such as high background interference, toxic solvents, and poor reproducibility. In this study, we report a novel nanocomposite matrix, GNP@Zn–Cu/MOF@Au, synthesized via a green, aqueous-phase method without toxic reagents or extreme conditions. This heterostructured material exhibited a large mesoporous surface area, excellent UV absorption, and thermal responsiveness, which enhanced signal intensity, reproducibility, and analytical sensitivity, significantly improving MALDI-TOF MS performance. When applied to the identification of carbapenemase activity in clinical CPKP isolates, the matrix achieved 100% sensitivity and specificity after 1 hour of incubation and 97.3% sensitivity after just 15 minutes. Notably, KPC-2-producing strains were detected with full sensitivity within 15 minutes, while extended incubation enabled reliable identification of low-activity enzymes such as OXA-48. These findings demonstrate the strong potential of GNP@Zn–Cu/MOF@Au as a reliable and sustainable alternative to conventional matrices for rapid and accurate detection of carbapenemase activity in clinical diagnostics.
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高影响因子
FUEL
·
2025
·
IF 7.5
Shengjiao Wen,Ruiying Wang,Xingchao Wang,Mengran Lou,Yang Wang,Yuhu Feng,Alex Trukhanov,Zhipeng Sun,Xia Kong
The strategic design of effective and low-cost catalysts plays a crucial role in advancing hydrogen evolution reaction (HER) in electrocatalytic water splitting. The integration of non-precious metal catalysts through a cooperative bimetallic compound strategy is crucial as an alternative to conventional precious metal-based materials. Transition metal carbides (TMCs) and nitrides (TMNs) exhibit Pt-like electronic configurations, demonstrating high potential as electrode catalysts for HER. Herein, Co 2 N/Co 3 W 3 C/coal-based carbon fibers (Co 2 N/Co 3 W 3 C/C-CFs) was synthesized via electrospinning and pyrolysis processes with the presence of polyoxometalate-based metal–organic framework (POMOF) of PW 12 -ZIF-67 as a precursor, and urea as a nitrogen source. The small-sized PW 12 -ZIF-67 allowed a better match with the diameters of C-CFs. The synergistic interaction between Co 2 N and Co 3 W 3 C effectively modulated the electronic structure and facilitated rapid charge transfer, endowing the composite with exceptional HER activity. Additionally, the flexible C-CFs not only effectively prevented agglomeration of Co 2 N/Co 3 W 3 C nanoparticles but also acted as self-supporting electrode. Notably, the Co 2 N/Co 3 W 3 C/C-CFs composite exhibited outstanding HER activity, achieving an overpotential of 92 mV at a current density of 10 mA cm −2 in 0.5 M H 2 SO 4 . This study achieves the successful conversion of coal into high-performance carbon materials and provides a feasible strategy for developing efficient HER catalysts based on POMOF-derived non-precious metal compounds.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Liangbin Xia,Qing Wang,Fang Wang,Yaru Li,Yining Cao,Yongpeng Ren,Ihar Razanau,Kunming Pan
Nickel-based catalysts demonstrate considerable promise for the hydrogen evolution reaction (HER), yet attaining both exceptional activity and sustained durability under prolonged operation persists as a critical research challenge. Herein, a directed self-growth strategy is employed to synthesize Ni-MOF nanosheets with a well-ordered morphology on the nickel foam (NF) surface via strong acid etching followed by ligand introduction. The dense Ni2+ layer generated by acid etching, as a seed, promotes strong bonding between the Ni-MOF and the NF substrate, which accelerates electron transport to the active layer and prevents catalyst detachment during long-term operation. Additionally, the Ni/NiO heterostructure obtained via pyrolysis forms an electron transfer channel that optimizes *H and *H2O adsorption on the Ni side while facilitating *OH desorption through its migration to the NiO domain, collectively contributing to improved HER kinetics. In situ Raman spectra reveal the evolution of key intermediates during the HER, corroborating the DFT predictions and highlighting the critical role of interfacial H2O structures in catalytic performance. The obtained S-Ni-MOF/NF-400 catalyst exhibits an ultralow overpotential (20 mV–10 mA cm–2), surpassing commercial Pt/C catalysts. Moreover, long-term stability tests demonstrate significant improvements in durability. This work not only introduces an outstanding Ni-MOF-based catalyst but also presents a novel strategy for designing highly active and stable HER catalysts.
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高影响因子
FUEL
·
2025
·
IF 7.5
Shiyun Xiao,Yuchen Wu,Xue Luo,Tianrun Hu,Zeyu Deng,Shaoyuan Guo,Hualan Zhou,Shengkang Wang,Xuesong Wang
The development of highly active catalysts and catalytic systems is crucial for the efficient valorization of lignin biomass. In this paper, a defective CoNi bimetallic MOF-303 catalyst was synthesized by adjusting the thermal reduction temperature and bimetallic ratio, demonstrating efficient catalytic performance in the aqueous-phase hydrodeoxygenation (HDO) of vanillin to produce 2-methoxy-4-methylphenol (MMP). Under mild conditions (200 °C, 2 h, 0.5 MPa H 2 ), the Co 2 Ni 1 /M 460 catalyst achieves complete conversion of vanillin with an MMP yield of 90.42 %. Additionally, the catalyst exhibited high activity in the aqueous-phase HDO of lignin and other lignin-derived/model compounds. Remarkably, facilitated the depolymerization of lignin into low-molecular-weight aromatic compounds, predominantly MMP, via secondary catalysis (8 h). Characterization analyses revealed that the high activity of Co 2 Ni 1 /M 460 stems not only from its defect-induced large pores, which enhance substrate adsorption and active site availability, but also from the synergistic effects between the CoNi alloy and the MOF-303 framework (Co-N interaction), promoting C=O group activation and efficient HDO. This work presents a viable strategy for designing sustainable and efficient lignin catalytic systems, highlighting the promising catalytic potential of MOF-303.
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TALANTA
·
2025
·
IF 6.1
Xiang-Yi He,Qian-Wen Shen,Chao-Jie Zhu,Shuo Hao,Kai-Yu Tan,Qing Li
This study presents a novel crosstalk-free dual-mode biosensing platform based on a single cerium-incorporated metal-organic framework (UiO-66-NH 2 (Ce)) for sensitive detection of α-glucosidase activity and inhibitor screening. Unlike traditional dual-mode systems affected by signal interference, this monolithic MOF platform intrinsically produces orthogonal colorimetric and fluorescent responses. Upon α-glucosidase-mediated generation of hydroquinone, simultaneous signal transduction occurs through independent pathways: colorimetric attenuation via suppression of the oxidase-like catalytic process, and fluorescence recovery due to ligand-to-metal charge transfer modulation. Rigorously optimized for clinical application, the platform achieves ultra-low detection limits of 0.0166 U/L in colorimetric mode and 0.0094 U/L in fluorescent mode, surpassing existing methods. The platform demonstrates selectivity against potential interferents and successfully quantifies α-glucosidase in human serum with satisfactory recovery rates. Furthermore, the system facilitates precise inhibitor screening with IC 50 values of 8.13 μM for fluorescence-based detection and 10.06 μM for colorimetric detection of acarbose. By integrating self-validating detection and drug evaluation within a single-material architecture, this work establishes a paradigm for designing robust MOF-based biosensors equipped with built-in cross-validation capabilities.
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JOURNAL OF MOLECULAR STRUCTURE
·
2025
·
IF 4.7
Feng Li,Ying Huang,Tong-Wei Zhang,Wei Lu,Chuan-Ze Zhong,Lian-Sheng Cui,Peng-Fei Yao
A Zn-based metal-organic framework (Zn-MOF) with a two-dimensional structure was successfully constructed via a solvothermal method. X-ray single-crystal diffraction analysis shows that Zn-MOF crystallizes in the monoclinic system with the P 2₁/ c space group. The Zn²⁺ ions exhibit a four-coordinated tetrahedral configuration, forming a uninodal 4-connected tetragonal two-dimensional framework with the point symbol {4 ⁴ ·6 ² }. First-principles calculations reveal that Zn-MOF is an indirect band-gap compound with a band gap of 2.64 eV, which is mainly determined by the bpydb²⁻ anionic units. Thermogravimetric (TG) analysis indicates that Zn-MOF undergoes major weight loss in the range of 395–490°C. Therefore, ZnO with different concentrations of oxygen vacancies (OVs-ZnO) was prepared by mixing Zn-MOF with different masses of glucose and calcining the mixture at 500°C. X-ray diffraction (XRD) and transmission electron microscopy (TEM) results confirm that the main component of the calcined samples is ZnO. Electron paramagnetic resonance (EPR) analysis shows the presence of oxygen vacancies (OVs) on the surface of the prepared ZnO samples. Ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS) analysis indicates that the band gap widths (E g ) of Zn-MOF and OVs-ZnO are 2.68 eV, 2.55 eV, 2.29 eV, 2.07 eV and 1.76 eV, respectively. Electrochemical impedance spectroscopy (EIS) and photocurrent (PCR) measurements demonstrate that OVs-ZnO (after calcination) is more favorable for the separation of photogenerated electron-hole pairs than Zn-MOF. Photocatalytic degradation experiments show that within 60 min, the photocatalytic degradation rate of TC by OVs-ZnO is significantly higher than that by Zn-MOF; in particular, the degradation rate of TC by OVs-ZnO-4 can reach over 90%. Radical trapping experiments reveal that h⁺, ·OH and ·O₂⁻ are all involved in the photocatalytic degradation process of TC, with ·OH being the key reactive species.
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ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Linghui Tang,Yue Wang
Hydrogen peroxide (H₂O₂) is a widely used oxidizing agent in industrial processes, and a 3 wt% aqueous solution is commonly employed as a disinfectant. In this study, a metal–organic complex (DHTPN) was synthesized via a one-step coordination reaction between 2,5-dihydroxyterephthalic acid (DHTP) and NiCl₂. The resulting complex exhibits a fine-tuned lattice structure resembling MOF-74(Ni) and was comprehensively characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). When immobilized onto a glassy carbon electrode, the DHTPN-modified electrode functioned as an efficient electrochemical sensor for H₂O₂ detection. Under optimized conditions, the sensor exhibited a broad linear detection range from 10 μM to 13.32 mM and an ultralow detection limit of 3.3 μM. In addition, the device demonstrated excellent selectivity, reproducibility, and operational stability, along with a rapid response time of 3.5 s. Furthermore, the sensor was successfully applied to the quantitative analysis of commercial 3 wt% H₂O₂ disinfectant without any sample pretreatment, yielding accurate and reliable results. This work highlights the potential of metal–organic complexes as advanced electrode materials in electroanalytical chemistry and provides a promising platform for rapid, sensitive, and efficient H₂O₂ detection.
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INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Jiachuan Chen,Jiaming Fan,Kefeng Liu,Junchao Li,Qixiu Dong,Guihua Yang
Traditional oil/water separation materials are greatly limited by poor eco-friendly, high energy consumption, and tedious preparation process. To address these issues, a sustainable superhydrophobic paper-based material (PDMS-CP@γ-CD-MOF) was developed through synergistic modification of cellulose paper sourced from wheat straw. A rough structure on the superhydrophobic paper was created by in-situ growth of γ-cyclodextrin metal-organic framework (γ-CD-MOF), and the surface energy was controlled via polydimethylsiloxane (PDMS) coating. The resulting superhydrophobic paper displayed appropriate mechanical strength, excellent superhydrophobicity and self-cleaning ability. Notably, gravity-driven separation of various oil/water mixtures was achieved with efficiencies over 97 % and flux rates reaching up to 382–603 L·m⁻²·h⁻¹ . Moreover, the superhydrophobic paper demonstrated excellent reusability, maintaining a separation efficiency above 98 % after 10 cycles, which indicates promising potential for treating oily industrial wastewater.
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CHEMICAL PHYSICS LETTERS
·
2025
·
IF 3.1
Ye Zhang,Xiaobing Yang
Recently, the overuse of tetracycline (TC) has caused persistent adverse effects on both ecological environment and human health. It needs to develop effective methods for removing TC from water. Herein, Ag 2 S/ZnIn 2 S 4 @TiO 2 @carbon was successfully synthesized and used as catalyst for degradation of TC. The influence of Ag 2 S and ZnIn 2 S 4 on the photocatalytic activity of TiO 2 @carbon were investigated. The results show that the Ag 2 S/ZnIn 2 S 4 @TiO 2 @carbon achieved a photocatalytic degradation efficiency of 98.73 %. Moreover, the photocatalytic activity of Ag 2 S/ZnIn 2 S 4 @TiO 2 @carbon remained nearly unchanged after four consecutive cycles, with only a 3.2 % decrease in degradation efficiency. Finally, the degradation mechanism of TC over Ag 2 S/ZnIn 2 S 4 @TiO 2 @carbon was elucidated.
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Small
·
2023
·Vol. 19
·期 21
·2300066
·
IF 13.3
Changgang Li,Shuolei Deng,Wenhao Feng,Yaowen Cao,Jiaxuan Bai,Xiaocong Tian,Yifan Dong,Fan Xia
Hybrid solid-state electrolytes (HSSEs) provide new opportunities and inspiration for the realization of safer, higher energy-density metal batteries. The innovative application of 3‑dimensional printing in the electrochemical field, especially in solid-state electrolytes, endows energy storage devices with fascinating characteristics. In this paper, effective dendrite-inhibited PEO/MOFs HSSEs is innovatively developed through universal room-temperature 3‑dimensional printing (RT-3DP) strategy. The prepared HSSEs display enhanced dendrite inhibition due to the porous MOF filler promoting homogeneity of lithium deposition and the formation of C-OCO 3 Li, ROLi, LiF mesophases, which further improve the migration of Li + in PEO chain and comprehensive performances. This universal strategy realizes the fabrication of different slurry components (PEO with ZIF-67, MOF-74, UIO-66, ZIF-8 fillers) HSSEs at RT environment, providing new inspirations for the exploration of next-generation advanced solid-state batteries.
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IONICS
·
2026
·
IF 3.4
Gong Gu,Liu Xiangyu,Ma Hao,Lv Du,Luo Hao,Liang Miaomiao,Zhou Yuan,Wang Haiyang,Zhao Yuzhen,Lashari Najeeb ur Rehman,Miao Zongcheng
The development of high-performance supercapacitor electrodes relies on the rational design of material structures with optimized electrochemical properties. In this work, we report a two-dimensional sponge-like NiS 2 architecture synthesized via a MOF-derived sulfurization strategy. The unique hierarchical porous structure, featuring abundant mesopores and high specific surface area, facilitates efficient ion diffusion and provides numerous electroactive sites for redox reactions. The resulting NiS 2 electrode exhibits outstanding specific capacitance (1227.5 F g − 1 at 0.5 A g − 1 ) with good cycling stability in alkaline electrolyte. Moreover, the NiS 2 electrode demonstrates bifunctionality and can be effectively employed in aqueous Ni-Zn batteries, delivering high specific capacity and stable long-term performance. This study establishes NiS 2 as a promising electrode material for aqueous energy storage devices and provides a feasible synthetic pathway for designing high-performance transition metal sulfide electrodes.
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