INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Xin-Ran Shi,Sai-Nan Guo,Ruoxi Zhang,Biao Yang,Hua Zou,Jie-Xin Wang
Metal–organic frameworks (MOFs) have emerged as pivotal materials for the photocatalytic reduction of CO2 to CO due to their exceptionally high surface areas and abundant active sites. However, most of the currently reported MOFs are confined to micropores (<2 nm), which limits adsorption/desorption and substance transport during photocatalytic CO2 reduction reactions. Herein, hierarchically porous MOFs (HP-MOF-74) were synthesized based on the assembly of MOF-74-Ni nanoparticles with different particle sizes (21, 42, and 85 nm) using spray-drying technology. The simultaneous enhancement of CO2 adsorption performance and photoelectroactivity was achieved in HP-MOF-74 due to the additional mesoporous structure formed by the nanoparticle stacking. The HP-MOF-74 exhibits 1.14–1.38 times improvement in the CO2 adsorption capacity compared to the corresponding initial MOF-74 nanoparticles (N-MOF-74). Meanwhile, the hierarchical architecture enhances photon utilization through improved light reflections and accelerates electronic transmission via additional mesopore pathways. These synergistic advantages collectively contribute to a 1.2–2.1 times enhancement in the CO generation rates of HP-MOF-74 compared with N-MOF-74 counterparts. Particularly, HP-MOF-74–42 nm demonstrated the highest CO production rate of 6.65 μmol h–1, outperforming most reported MOF-based photocatalysts. The construction of hierarchically porous MOFs provides a new idea for the design of highly efficient CO2 reduction photocatalysts.
研究领域:
材料科学
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环境科学
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化学工程
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纳米技术
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Chaoying Zhang,Qian Jia,Guoqiang Li,Feng Li,Haitao Cui,Congming Li,Lei Li
An ultramicroporous variant of Mg-MOF-74 is synthesized through a mixed-linker strategy incorporating ethylenediaminetetraacetic acid (EDTA) as exotic linker. • An exclusive H 2 O adsorption site is created based on the uncoordinated oxygen atoms of EDTA. • The hydrogen-bonding network within EDTA-modified frameworks enhances CO 2 adsorption by 14.3 % via the formation of carbonates. • Incorporating EDTA molecules increases the CO 2 /N 2 selectivity by a factor of 2.28 compared to pristine Mg-MOF-74. • The EDTA-modified Mg-MOF-74 outperforms the pristine Mg-MOF-74 with a two-fold enhancement in CO 2 uptake under humid conditions. Mg-MOF-74 ([Mg 2 (DOBDC)]) represents a high-performance solid adsorbent for carbon capture, however, its CO 2 uptake decreases significantly under humid flue gas conditions due to competitive adsorption between H 2 O and CO 2 molecules. Herein, a mixed-linker modification strategy is employed by integrating ethylenediaminetetraacetic acid (EDTA) into the Mg-MOF-74 framework. This approach preserves the original one-dimensional pore structure while altering the coordination environment of Mg 2+ sites, reducing their coordination number to five. The resulting structure with uncoordinated oxygen atoms from EDTA serves as exclusive adsorption centers for H 2 O thereby protecting the CO 2 adsorption capacity. The optimized MOFs exhibits a high CO 2 adsorption capacity (6.4 mmol/g, at 1 bar) and outstanding CO 2 /N 2 selectivity (346). In humid CO 2 /N 2 (15:85, v:v, at 314 K, RH% = 86%) breakthrough experiment, the EDTA-modified frameworks maintain stable CO 2 uptake (3.92 mmol/g), consistent with dry performance, whereas the pristine Mg-MOF-74 shows a great reduction (2 mmol/g). In-situ FTIR further reveals that the incorporation of EDTA facilitates the formation of hydrogen bonding and carbonate species, synergistically enhancing the moisture resistance of MOF materials. Moreover, the modified material retains stable breakthrough times over six consecutive adsorption-desorption cycles under high-humidity conditions, demonstrating its great potential for scalable industrial carbon capture applications.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Zijun Chen,Chenyu Wang,Yongyu Wei,Feifan Yang,Yuanhang Jin,Yuyang Miao,Doudou Dong,Haipeng Zhu,Gongping Liu,Wanqin Jin
Efficient separation of aromatic/aliphatic hydrocarbon mixture represents a critical and challenging task in refinery and petrochemical industries. To date, the development of aromatic-selective membranes with superior separation efficiency has attracted increasing attention. In this work, we selected M-MOF-74 with different metal centers (M = Mn, Mg, Co) to incorporate into chitosan-polyvinyl pyrrolidone (CS-PVP) blends to fabricate aromatic-selective mixed-matrix membrane (MMM) for the improvement of aromatic/aliphatic separation performance. Among them, the Mn-MOF-74/CS-PVP MMMs displayed dramatically enhanced pervaporation performance toward benzene/cyclohexane separation, owing to the strong preferential adsorption affinity between Mn-MOF-74/CS-PVP membrane and benzene molecules via π-π interactions. Under the optimal conditions, the cross-linked membrane achieved a total flux of 129 ± 2 g m −2 h −1 and a separation factor of 15.4 ± 0.1 for separating a 50 wt% benzene/cyclohexane azeotrope at 50 °C, outperforming most state-of-the-art membranes. Long-term stability tests confirmed that the MOF-74/CS-PVP membrane possesses promising practical potential for benzene/cyclohexane azeotropic separation.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Hong Gao,Chen Wang,Wenqi Zhang,Guowei Shan,Weixing Li
Purification of glutathione (GSH) from fermentation broth is crucial for production process. Here, we built a new nanofiltration (NF) membrane to separate glutathione from amino acids, which mainly refer to glutamate (Glu) and glycine (Gly). An alendronic acid (AA)/Cu-MOF-74 nanorods arrayed interlayer is constructed on the substrate. The designed interlayer can adsorb a significant amount of piperazine (PIP), enhancing the reaction crosslinking degree of interfacial polymerization. The Cu-MOF-74 morphology contributes a wrinkled membrane surface structure with large specific surface area. The optimal NF membrane achieved the permeability of 7.13 L·m −2 ·h −1 ·bar −1 with high selective separation factor of 20.06, 25.88, 25.46 for GSH/Glu, GSH/Gly and GSH/NaCl, respectively. This work offers a potential solution to develop high-performance NF membranes for purification of biological molecules.
研究领域:
生物技术
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材料科学
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分离工程
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高影响因子
ELECTROCHIMICA ACTA
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2025
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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.
研究领域:
电分析化学
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材料科学
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传感器与生物传感器
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配位化学
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环境监测
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 13.2
Menghuan Wu,Yifang Zhang,Zhiping Xu,Yuqi He,Jialei Wang,Tian Xie,Shuduan Deng,Lidan Zhang,Gang Zhu
Metal–organic frameworks often lose CO 2 capacity in hot, humid flue gas because H 2 O competes for open metal sites (OMSs). Here we report a dual-stabilized, wood-based adsorbent in which Mg-MOF-74 is grown on an aminated wood sponge and overcoated with an ultrathin polydimethylsiloxane (PDMS) layer, coupling support immobilization with interfacial hydrophobization while preserving access to OMSs. Under flue-gas-relevant conditions (323 K, 50% RH), the material delivers a CO 2 uptake of 1.68 mmol·g −1 (≈89% of its dry-state capacity) and an IAST CO 2 /N 2 selectivity of 144 for a 50/50 mixture at 323 K. Humid-gas breakthrough tests confirm robust separation performance. Density functional theory (DFT) calculations attribute the humidity tolerance and selectivity to the synergy between accessible OMSs and PDMS-mediated interfacial polarity, without increasing the isosteric heat of adsorption, thereby enabling energy-efficient regeneration. The framework retains its crystallinity after 30 days of water immersion, and a techno-economic estimate projects a material cost of approximately US$10.36 kg −1 at a 1000 t·yr −1 scale. This scalable architecture reconciles capacity, selectivity, humidity resistance, and cost for post-combustion CO 2 capture.
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高影响因子
MICROCHEMICAL JOURNAL
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2021
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IF 4.821
Wenhu Yang,Hao Guo,Rui Xue,Xin Zhao,Qixia Guan,Tian Fan,Longwen Zhang,Fan Yang,Wu Yang
Selenides derived from MOFs have attracted attention as the materials with excellent electrochemical properties. CNT/MOF-74 composites are successfully synthesized by a simple hydrothermal method. Then CNT/Ni-MOF-74 materials are selected as the precursors for further selenization to prepare CNT/NiSe x . The results show that 0.2CNT/NiSe x derived from CNT/Ni-MOF-74 prepared in the presence of 0.2 g CNTs has the best electrochemical performance as electrochemical capacitor electrode, which exhibits the highest specific capacitance of 2136 F·g −1 at a current density of 1 A·g −1 . In addition, a hybrid electrochemical capacitor (HEC) is assembled with 0.2CNT/NiSe x and activated carbon (AC). The obtained 0.2CNT/NiSe x //AC HEC shows a high energy density of 59 Wh·kg −1 at a power density of 800 W·kg −1 . In order to expand the application of the composition material, a 0.2CNT/NiSe x /GCE electrochemical sensor is prepared. The results show that 0.2CNT/NiSe x /GCE electrochemical sensor can be used for simultaneous determination of acetaminophen (AMP) and dopamine (DA).
研究领域:
材料科学
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电化学
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高影响因子
Journal of Physical Chemistry C
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2022
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IF 4.177
Yun Ling,Ya-ru Chu,Feng Gao,Qing-yun Feng,Hui-qi Xie,Yong Shao,Qing-xiang Wang
The unique chemical and physical properties of metal–organic frameworks (MOFs) endow them with promising applications in the electrochemical sensing field. Herein, a novel label-free electrochemical sensing strategy for cardiac troponin I (cTnI) has been constructed on the basis of immunoaffinity-induced depression of the electrochemical signal of Cu-MOF-74. The electrochemical assay shows that the immunoaffinity reaction between cTnI and anti-cTnI on the electrode surface can effectively inhibit the electrochemical signal of electrode-confined Cu-MOF-74, suggesting that the Cu-MOF-74-based interface may find application in the label-free analysis of cTnI. Thus, Cu-MOF-74 acts as a bifunctional material in this strategy, namely, the immobilization matrix of probe molecules and the signal source of the sensing analysis. In addition, the reason for the electrochemical signal depression of Cu-MOF-74 induced by immunoaffinity reaction is attributed to the increase in the insulation layer and the blocking of the electrolyte diffusion from the bulk solution to the electrode surface. In this strategy, the analytical range of cTnI is from 0.01 pg mL–1 to 1.0 ng mL–1 and the detection limit is 4.5 fg mL–1. The Cu-MOF-74-based sensing interface is also reliable for cTnI analysis in real serum samples, showing that the biosensor has promising application in point-of-care testing (POCT) of myocardial injury-related diseases.
研究领域:
生物传感器
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医学诊断
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材料科学
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高影响因子
ACS Catalysis
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2026
·Vol. 16
·期 16
·16350-16361
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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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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Chenguang Qian,Yihan Xu,Yi Wen,Junnan Zhang,Gaofeng Wang,Fang Yuan,Chunquan Li,Zhiming Sun
Green microwave-assisted synthesis of composite using methanol/water. • Natural diatomite support reduces cost and suppresses MOF-74(Ni) aggregation. • DRIFTS and Molecular Simulation reveal CO 2 binding at unsaturated Ni 2+ sites. • Life cycle assessment indicates potential net-negative CO₂ emissions. Developing cost-effective and efficient adsorbents is essential for practical CO 2 capture. Herein, a hierarchical MOF-74(Ni)/diatomite composite is prepared via a microwave-assisted in situ growth strategy, using natural diatomite as a low-cost porous support and a methanol/water system as a relatively benign solvent medium. Rapid crystallization is achieved at 100 °C within 20 min, providing an energy-efficient route for constructing mineral-supported MOF adsorbents. Structural characterization confirms the uniform anchoring of MOF-74(Ni) crystals on the porous diatomite scaffold without compromising the intrinsic crystallinity of the framework. The diatomite scaffold not only promotes the dispersion of MOF-74(Ni) but also constructs interconnected micro-/ meso -/macroporous transport channels, thereby enhancing gas diffusion and mass transfer. The optimized composite delivers a CO 2 uptake of 4.86 mmol·g −1 at 298 K and 1 bar, an IAST-predicted CO 2 /N 2 selectivity of 76, and a dynamic CO 2 capacity of 4.37 mmol·g −1 . It also retains over 97% of its initial capacity after 50 adsorption–desorption cycles and exhibits stable CO 2 uptake under humid and multicomponent simulated flue gas conditions. In situ DRIFTS and molecular simulations reveal that CO 2 adsorption occurs primarily at coordinatively unsaturated Ni 2+ sites through electrostatic interactions and weak coordination. ZLC analysis further confirms enhanced intraparticle diffusion and improved CO 2 desorption kinetics in the composite. Life cycle assessment estimates emissions of 308 kg CO 2 -eq per ton of CO 2 captured, indicating the potential for net-negative emissions and highlighting the promise of mineral-supported MOF adsorbents for sustainable carbon capture. Download: Download high-res image (307KB) Download: Download full-size image
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高影响因子
Journal of Materials Chemistry A
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2025
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IF 9.5
Chang'an Wang,Zuoshuai Xi,Tao Ban,Zhiyuan Liu,Yibin Luo,Hongyi Gao,Ge Wang,Xingtian Shu
The fine design and regulation of the microenvironment surrounding active sites in metal–organic frameworks (MOFs) are crucial for optimizing electron distribution and enhancing oxygen activation, thereby achieving superior catalytic performance in epoxidation reactions. In this study, we focus on the synergistic modulation of the cobalt (Co) microenvironment in MOF-74 through the introduction of lanthanum (La) sites and defect engineering. The incorporation of rare-earth La species effectively redirects the electron density of Co sites, enhancing their oxygen activation capabilities. Additionally, the presence of coordination-unsaturated Co sites facilitates rapid electron transfer from active sites to substrates, promoting the generation of superoxide radicals. Notably, the Co0.50La0.50-MOF-74-4eq sample demonstrates exceptional molecular oxygen utilization and epoxidation performance, achieving a cyclohexene conversion of 92.2% with a selectivity of 93.9% for 1,2-epoxycyclohexane at 40 °C within 1 hour. Furthermore, this catalyst exhibits broad applicability across different substrates. Density functional theory calculations, complemented by in situ analysis, confirm that molecular oxygen activation occurs at Co sites while suppressing the allylic oxidation pathway, thus favoring the conversion of cyclohexene to epoxides. This work elucidates how strategically tailoring the electronic properties around catalytic sites can dramatically influence catalytic behavior in heterogeneous catalysis, providing new insights for the rational design of advanced catalysts.
研究领域:
催化化学
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材料科学
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高影响因子
ACS Applied Nano Materials
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2025
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IF 5.5
Zexiang Liu,Ke He,Zhiguang Yang,Zijie Xu,Meiyu Li,Jinming Zhang,Chenxue Yao,Qianqian Chen,Xiaochen Li
Metal–organic framework (MOF)-derived materials show great potential as highly efficient and stable electrocatalysts for the oxygen evolution reaction (OER). However, conventional derivation strategies (such as high-temperature calcination and chemical etching) often require harsh reaction conditions and inevitably compromise the structural integrity of the material, thereby limiting their practical applicability. To address this challenge, this study presents an innovative room-temperature dielectric barrier discharge (DBD) plasma surface engineering approach that enables the precise activation of CoNi-MOF-74 catalysts at room temperature. After DBD treatment, the surface of NF/PMOF is etched, generating cracks and exposing the nanoporous structure of the internal framework. Remarkably, through merely 5 min of DBD surface treatment, the resulting catalyst NF/PMOF5 achieves an ultralow overpotential of 173 mV at a current density of 10 mA cm–2 and a Tafel slope of 43 mV·dec–1, demonstrating a remarkable improvement compared to the untreated sample (307 mV, 109.5 mV·dec–1). The catalyst also exhibits outstanding stability, with minimal potential shift (<20 mV) after 4000 cycles. Detailed characterization reveals that the DBD treatment maintains the crystalline integrity of MOF-74 while simultaneously optimizing the electronic structure and generating high-density surface CoNi-oxide nanoclusters, which significantly enhance the OER kinetics. Owing to its green and mild treatment conditions, this noncarbonization activation strategy not only provides more options for MOF catalyst design but also demonstrates advantages in the processing of flexible electronic devices.
研究领域:
材料科学
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电化学
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等离子体物理
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纳米技术
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能量存储与转换
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高影响因子
危险品化学品经营许可证（带存储）