APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Li Ma,Xiong Zhao,Zijuan Luo,Zhenzhen Chen,Jinjia Wei,Nanjing Hao
Porphyrin-based metal–organic frameworks are widely utilized in the photocatalytic field owing to their unique photosensitive properties. Whereas controllable substrate morphology and uniform distribution of the noble metal nanoparticles still remain challenging in traditional synthesis. Herein, Cu-TCPP@MOFs and PtNPs/Cu-TCPP@MOFs with flower-like architecture were produced via continuous flow strategy and double spiral microreactor efficiently and controllably. The results revealed that 5.2 wt% Pt nanoparticles with 2.68 nm were embedded evenly on the Cu-TCPP@MOFs within 5 min. Compared to the Cu-TCPP@MOFs, the PtNPs/Cu-TCPP@MOFs exhibited much superior catalytic performance for rhodamine B (RhB) degradation under visible-light-driven, the reaction rate constant and catalytic activity parameter increased from 0.010 to 0.027 min −1 , and 0.03 to 11.25 s·g −1 , respectively. The free radical capture experiments revealed that h + , ·OH, and ·O 2 − played a synergistic role in the RhB degradation, whereas ·OH plays the most prominent effect. The reasonable degradation pathways of RhB were proposed by combining the density functional theory (DFT) with liquid chromatography mass spectrometry (LC-MS) investigation. This work not only provided insights into the design and controllable preparation of high-performance photocatalysts but also provided an effective strategy for degrading organic pollutants in the water environment, which poses significant environmental and economic benefits.
研究领域:
材料化学
·
环境科学
·
光催化
·
纳米技术
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分析化学
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理论计算化学
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DOI
高影响因子
Advanced Membranes
·
2025
·
IF 9.5
Xiangwei Li,Junjian Yu,Shuai Han,Yuzheng Zhou,Yuxuan Liang,Yuchao Wang,Zhe Wang
Defect engineering allows for precise control of the microporous structure and coordination defects in metal-organic frameworks (MOFs). This approach offers an innovative pathway to optimize the gas separation performance of MOF/polymer mixed matrix membranes (MMMs). Herein, UiO-PzDC nanoparticles with gradient defects were synthesized by substituting terephthalic acid with 2,5-pyrazinedicarboxylic acid (PzDC) as a linker in a novel UiO-66 derivative, while modulating the defect concentration through the addition of 2-pyrazinecarboxylic acid (2-PZC). The material was dispersed within a highly permeable polymer matrix (e.g., PIM-1), and the influence of defect concentration on the interfacial properties and mass transfer behavior of mixed matrix membranes (MMMs) was systematically investigated. Combined analysis of experimental results and molecular dynamics simulations demonstrated that the incorporation of PzDC ligands significantly enlarged the MOF pore size, while the 2-PZC-induced defects further enhanced the microporous connectivity. Owing to the synergistic effect of MOF defects and the PIM-1 matrix, the composite membranes demonstrated superior filler-matrix interfacial compatibility, and the defect concentration exhibited no significant influence on interfacial stability. Gas transport studies revealed that the defect-engineered MOF facilitated an ultrafast transport channel for CO 2 through enhanced diffusion selectivity. MMMs containing a high defect concentration of UiO-PzDC (defectivity: 3.03) exhibit breakthrough separation performance, achieving a CO 2 permeability of 18,553 Barrer (a 384% improvement over pure PIM-1) and a CO 2 /N 2 selectivity of 23. This performance combination surpasses the 2019 Robeson upper bound. This study elucidates the universal principle of ligand substitution and defect engineering in synergistically modulating the mass transfer mechanism of metal-organic frameworks (MOFs), establishing a novel paradigm for designing next-generation membrane materials that simultaneously exhibit high permeability and selectivity.
研究领域:
材料科学
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膜分离技术
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化学工程
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纳米材料
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多孔材料
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气体分离
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高分子科学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Yidong Zhang,Rong Shao,Wei Xu,Jianfei Ding,Yuan Wang,Xiuhua Yan,Wenyan Shi,Min Wang
Hierarchical porous materials receive extensive attention due to their excellent electrode kinetic performance. Herein, a facile strategy is presented to fabricate hierarchical porous supercapacitor materials using NaCl-assisted MOFs gel as a structure-directing template. By controlling the additive amount of NaCl, hierarchical porous carbon-encapsulated Fe 3 C with tailored pore size distribution has been obtained with a high specific capacity of 184.1 mAh g −1 (602.3F g −1 ) at a current density of 1 A g −1 . The analysis of kinetics and impedance indicates that the tailored porosity can provide broad ion diffusion pathway and low charge-transfer resistance. Meanwhile, seawater was used instead of NaCl for preparing hierarchical porous carbon with good capacitive performance. When evaluated their practical applications, the assembled all-solid-state hybrid supercapacitor delivers a high energy density of 30.6 W h kg −1 at a power density of 600 W kg −1 , and even maintains an energy density of 15.5 W h kg −1 at a power density of 12000 W kg −1 with 86.5% capacity retention after 10,000 cycles. This work is anticipated to open up a new route of using MOFs gel and water-soluble salts for designing hierarchical porous electrode s materials, which pave the way for advanced utilization of MOFs gel and seawater.
研究领域:
材料科学
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电化学
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纳米能源
·
功能材料
·
储能技术
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DOI
高影响因子
RESEARCH ON CHEMICAL INTERMEDIATES
·
2023
·Vol. 50
·期 1
·107-125
·
IF 3.3
Huo Quan,Zhang Xiaolin,Fu Yanfei,Zhao Jiayao,Fu Lei,Miao Jiarun,Sun Haihui,Gao Jing,Liu Suyan
In this work, CuCo@C and CuCoS@C derived from an in-situ synthesis bi-metallic MOF HKUST-1/ZIF-67 (CuCo-MOF) were successfully fabricated by calcination and hydrothermal sulfide strategies. Morphology characterization results indicated that ZIF-67 grew uniformly on the surface of HKUST-1 to form CuCo-MOF. And, benefiting from bi-metallic MOFs precursors, the formed derivatives inherited and possessed good textural properties and dispersing well metal sites, which facilitated diffusions of molecules and enhancements of catalytic performances. In addition, carbon matrix produced in the materials further accelerated electron transporting properties, boosting HER and OER activities. Accordingly, in electrolytic water evaluations, CuCo@C and CuCoS@C showed good HER and OER performance, achieving 97 mV and 180 mV of overpotential at 10 mA cm −2 in an alkaline medium, respectively. Additionally, the catalysts exhibit long-term stabilities. Thus, this study provides a rational way for designing and constructing of high-efficient catalysts for H 2 and O 2 generations from electrolytic water processes.
研究领域:
材料科学
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电化学
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纳米催化
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能源化学
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功能材料
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DOI
高影响因子
Sustainable Energy & Fuels
·
2020
·Vol. 4
·期 5
·2192-2200
·
IF 5.503
Zhewen Ma,Qiuyu Zhang,Wen Zhu,Darvaish Khan,Chuanzhu Hu,Tianping Huang,Wenjiang Ding,Jianxin Zou
TMA-TM (TM = Fe, Ni) MOFs were synthesized successfully by a facile method. A MgH2-TM MOF (TM = Fe, Ni) composite was obtained via ball milling and the corresponding hydrogen storage performance was investigated. Particularly, high-resolution transmission electron microscopy was performed to in situ characterize the dehydrogenation behavior of the MgH2-TM MOF composite. The results reveal that nano α-Fe and Mg2NiH4/Mg2Ni derived from the TMA-TM MOFs display a synergetic improving effect on the de/hydrogenation of MgH2. During the hydrogen desorption process, Mg2NiH4/Mg2Ni works as a “hydrogen pump” to quickly deliver hydrogen and facilitates hydrogen diffusion. Meanwhile, α-Fe accelerates the nucleation and growth of Mg by reducing the nucleation energy of Mg from MgH2. The hydriding activation energy of the MgH2-TM MOF declines to 45.3 kJ mol−1 H2. Meanwhile, the peak dehydriding temperature of the MgH2-TM MOF is 530.9 K, which is much lower compared with the MgH2–Fe MOF composite (541.7 K) and as-milled MgH2 (685.2 K). Therefore, nano Mg2Ni and α-Fe derived from the TMA-TM MOFs can remarkably improve the hydrogen storage properties of the MgH2/Mg system due to their synergetic catalytic effects.
研究领域:
材料科学
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能源科学
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DOI
高影响因子
INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Peng Hu,Lvming Jin,Long Li,Xianlv Pan,Jialang Hu,Gui Shi,Mingyuan Jiang,Jun Wu,Chao Xiong,Shenwei Chen,Hongbing Ji
The removal of trace alkane impurities remains challenging due to their similar molecular properties. Here we propose a self-boosting kinetic separation process enabled by a “molecular lubrication” strategy, in which trace propane acts as a dynamic lubricant within a tailored Fe-based MOF featuring a bottleneck pore structure. Using in situ synchrotron XRD, DFT, and molecular simulations, we show that propane preferentially occupies the wide cavities rather than the narrow pore necks, smoothing the diffusion pathway and lowering the energy barrier. This leads to a volcano-shaped pressure dependence of diffusivity with an optimum at ∼5 kPa. Breakthrough experiments with a natural-gas mixture (CH4/C2H6/C3H8 = 85/10/5, v/v/v) yield methane purity ≥99.99%. Six-bed vacuum pressure-swing adsorption simulations further demonstrate a high CH4 recovery (80.4%), purity (≥99.95%), and productivity (4.04 mol kg–1 h–1). This work illustrates how trace-impurity-induced lubrication can be harnessed to design MOFs with enhanced diffusion kinetics for gas separation.
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DOI
PubMed
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2026
·Vol. 40
·期 5
·e70581
·
IF 4.3
Wenjing Song,Zhenhao Xiao,Shuo Yan,Jie Li,Weizuo Li,Haiqun Chen
The chemical fixation of carbon dioxide (CO 2 ) into value-added cyclic carbonates is a promising pathway for carbon utilization; however, developing heterogeneous catalysts with high activity and stability remains a challenge. In this study, a Cu–Mg-MOF-74 precursor was synthesized via a solvothermal method and subsequently transformed into a Cu–Cu 2 O–MgO/C nanocomposite catalyst through a one-step pyrolysis process under N 2 atmosphere at 550°C. The pyrolysis process leads to the collapse of the MOF crystal structure and the formation of highly dispersed Cu–Cu 2 O–MgO nanoparticles embedded in a carbon matrix, while the overall morphology inherited from the MOF precursor remains largely preserved. Detailed characterization (XRD, XPS, TEM, BET, and in situ DRIFTS) reveals that the catalyst possesses a high specific surface area (296.7 m 2 ·g −1 ), abundant Lewis acid sites (Cu, Cu 2 O, and MgO), and surface oxygen-containing groups, which synergistically enhance catalytic performance. Under relatively moderate conditions (90°C, 0.7 MPa, CO 2 , 7 h), the Cu–Cu 2 O–MgO/C catalyst achieved a styrene oxide conversion of 94% with 99% selectivity, significantly outperforming its monometallic and physical mixture counterparts. Furthermore, the catalyst demonstrated excellent substrate versatility and robust recyclability over five consecutive runs without structural collapse. This work provides a facile strategy for fabricating robust MOF-derived carbon-based catalysts for sustainable CO 2 conversion.
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DOI
高影响因子
ACS Applied Bio Materials
·
2026
·
IF 5.6
Siyuan Ji,Yuqian Mao,Caiyu Zhu,Xihao Jiang,Zhian Liu,Zhikui Zeng,Liangliang Zeng,Guowen Qian
To address the challenges posed by excessive inflammatory responses and reactive oxygen species (ROS) in the complex microenvironment during pathological bone defect repair, this study developed a composite scaffold. First, zeolitic imidazolate framework-8 (ZIF-8) loaded with curcumin (CCM) was grown in situ on the surface of strontium carbonate (SrCO3) to form SrCO3@CZIF-8 composite particles with a core−shell structure. Subsequently, these particles were integrated into a poly-l-lactic acid (PLLA) matrix using selective laser sintering technology. Experimental results indicate that the CCM and Zn2+ ions released during scaffold degradation effectively scavenge hydroxyl radicals (with a scavenging efficiency of 61.98% after 24 h) and significantly alleviate inflammatory responses. Furthermore, the released Sr2+ ions enhance osteogenic activity and promote osteogenic differentiation, suggesting that this scaffold holds potential for bone defect repair in complex pathological environments.
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DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Zhibang Gao,Qiumin Wang,Chi Wang,Shuangyou Bao,Fei Wang,Kai Li,Yi Mei
The performance of peroxymonosulfate (PMS)-based advanced oxidation processes is often limited by inefficient reactive oxygen species (ROS) utilization and instability of active metal sites. Herein, a dual-confinement strategy is proposed by integrating spatial pore confinement and coordination confinement into Ti-based metal–organic frameworks (MOFs) to regulate PMS activation. Compared with Ti-BPDC, the pyridine-functionalized Ti-BPYDC framework provides Co N coordination sites, enabling stronger stabilization and electronic modulation of Co active centers. As a result, the Co-Ti-BPYDC/PMS system achieves enhanced tetracycline degradation (98.83% within 30 min), higher reaction kinetics (0.54 min −1 ), and improved mineralization (44.73%). Mechanistic studies reveal that the dual-confinement structure promotes interfacial electron transfer, stabilizes the Co 3+ /Co 2+ redox cycle, and favors a singlet oxygen ( 1 O 2 )-dominated non-radical pathway, while suppressing Co leaching. Consequently, the catalyst exhibits excellent stability and resistance to environmental interference. This work provides a general strategy for designing efficient and stable MOF-based catalysts for advanced oxidation processes.
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DOI
高影响因子
TALANTA
·
2026
·
IF 6.7
Wenli Chen,Renjie Li,Wenxi Wang,Kaixi Yin,Xiandeng Hou,Li Wu
A facilely fabricated Ag/Cu-TCPP was developed as a SERS substrate. • Saliva uric acid (UA) was quantified with 0.04 μM detection limit. • Synergy in molecular enrichment and EM enhancement improved SERS sensitivity. • Time-resolved monitoring of UA fluctuations in real saliva samples was achieved. Surface-enhanced Raman scattering (SERS) methods offer high sensitivity for uric acid (UA) detection, but efficient molecular enrichment and reliable analysis in complex biological matrices remain challenging. Here, we developed an Ag/Cu-TCPP SERS platform for noninvasive determination of UA in saliva. The platform combined the electromagnetic enhancement provided by Ag nanoparticles (Ag NPs) with the molecular enrichment capability of Cu-TCPP. Density functional theory calculations further indicated that UA can be enriched on Cu-TCPP through weak Cu···O quasi-coordination between the UA carbonyl oxygen and exposed Cu centers, accompanied by interfacial charge redistribution. Consequently, the platform achieved a low detection limit of 0.04 μM and a wide linear range of 0.1–1000 μM. Beyond conventional single-point determination, the platform enabled time-resolved assessment of salivary UA concentration, revealing temporal fluctuations under physiological and feeding-related conditions. These results highlight the potential of MOF-integrated SERS platforms for noninvasive monitoring of small-molecule biomarkers. Download: Download high-res image (242KB) Download: Download full-size image
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DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2026
·
IF 3.2
Jianan Liu,Xiangning Chen,Jiandi Huang,Menghan Li
DMF-CH 3 OH solvothermal mixed solvent. • High capacitance value of 2495 F/g at 1 A/g. • Capacitance value 175 F/g at 1 A/g of the ASC device. • Energy density of 54.3 Wh·kg −1 at power density of 744.5 W kg −1 of ASC device. Metal-organic frameworks (MOFs) have attracted great research attention as electrode materials for supercapacitors due to their unique advantages. In this work, a series of NiCo-MOFs were synthesized through a simple solvothermal method. This work mainly adopts DMF and methanol as the mixed solvent in the solvothermal process. By adjusting the ratio of DMF to methanol (1:1-4:1), NiCo-MOFs with similar morphologies but different electrochemical properties were obtained. Among the four solvent ratios, NiCo 21 -MOF (DMF:CH 3 OH = 2:1) exhibits excellent electrochemical performance with a specific capacitance of 2495 F/g at 1 A/g. The NiCo 21 -MOF//AC asymmetric supercapacitor (ASC) device exhibits a specific capacitance of 175 F/g at 1 A/g, and the energy density and power density are 54 Wh kg −1 and 744 W kg −1 , respectively. After 5000 cycles, the ASC device still retains 85% of its initial capacitance, with good stability. In conclusion, this work achieves excellent electrochemical performance of NiCo-MOFs by adjusting the solvent ratio, providing a new strategy for synthesizing NiCo-MOFs with excellent electrochemical properties. Download: Download high-res image (313KB) Download: Download full-size image
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高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 7
·1-18
·
IF 5.3
Li Xinlou,Wang Ganghui,Wang Haoxiang,Wang Aijia,Guo Hongxu
AgCl/Ag@MOF(Ag) nanocomposites have been successfully fabricated through a simple and quick one-pot reflux approach for the first time, where AgCl/Ag nanoclusters are stabilized on the sheet-like MOF(Ag) surface. The as-prepared Ag-based MOFs fluorescent probe shows high fluorescence intensity and excellent fluorescence stability for sensing of tetracycline antibiotics (TCs) through mechanisms involving inner filter effect (IFE) and static quenching. The experimental results show that the detection concentration ranges for tetracycline (TET), chlortetracycline (CTC), and oxytetracycline (OTC) were 10–80 μM, 10–60 μM, and 10–30 μM, and with the detection limits of 2.59 nM, 1.36 nM, and 1.43 nM, respectively. The high sensitivity and selectivity of the fluorescent probe for TCs offers novel perspectives on utilizing supported MOFs as fluorescent probes for trace TCs detection in food by a fast, simple, and reliable method. Graphical abstract
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DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）