NANO
·
2024
·
IF 1
Xiaoying Lin,Xiuchun Fan,Lifang Xu,Hao Lin,Qinhua Zhong
A porous carbon material (Mg-MOF-C) was prepared by carbonization in the N 2 atmosphere using Mg-MOF-74 as the precursor. Physicochemical properties of Mg-MOF-C materials were well characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FIRT), Thermogravimetric analyzer (TG), transmission electron microscope (TEM), energy dispersive spectrometer (EDS), N 2 adsorption/desorption isotherms (BET) and EDS. The adsorption properties of the products were studied Mg-MOF-C has a high specific surface area of up to 1739.29 m 2 /g, and the pore volume of micropores was 0.98 m 3 /g. Besides, 95% of the first adsorption is retained after five cycles. The adsorption processes agreed well with the pseudo-second-order kinetic model and Langmuir isotherm model.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Li Ren,Wen Zhu,Qiuyu Zhang,Chong Lu,Fengzhan Sun,Xi Lin,Jianxin Zou
Magnesium hydride (MgH 2 ) is one of the most promising hydrogen storage materials, while the high desorption temperature and sluggish kinetics hamper its further commercialization. Herein, a novel MOF-derived 1D N-doped hierarchically porous carbon nanofiber (pCNF) is firstly prepared and used as the scaffold for self-assembly of MgH 2 /Ni nanoparticles (NPs). The resultant MgH 2 /Ni@pCNF nanocomposites show faster desorption kinetics ( E a = 96.58 kJ/mol H 2 ), lower onset desorption temperature ( T onset = 200 °C) when compare to the commercial MgH 2 ( E a = 142.27 kJ/mol H 2 , T onset = 350 °C). Moreover, hydrogen absorption can be achieved at a temperature as low as 100 °C with a capacity of 2.2 wt% within 120 min. Additionally, the composites exhibit excellent cycling stability with a capacity retention over 95.4% after 10 complete re-/dehydriding cycles at 300 °C. In-situ HRTEM observations of the desorption process combined with XPS and XRD indicate that the synergistic effects from nanoconfinement of Mg/MgH 2 in pCNF, electron-donating ability of N atoms and the “hydrogen pump” function of Mg 2 Ni/Mg 2 NiH 4 account for the unprecedent hydrogen storage properties. The strategy of using the MOF-derived 1D pCNF as support for nanoparticles provides a new approach for fabricating nanostructured energy materials with enhanced performances.
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ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Yuan Qin,Huimei Liang,Jia Wu,Zheyang Chi,Shulin Zhao,Fanggui Ye
Natural enzyme cascades, including the same and different kinds of enzymes, have been widely used in biosensing. However, it is still a challenge for nanozymes, the mimics of natural enzymes, to achieve biosensing with different types of enzyme-like activities based on cascade reactions, such as hydrolase and oxidoreductase. Considering the characteristics of the multienzyme-like activity of some nanozymes, as a proof of concept, this study demonstrates a Cu/Ce-MOF-808 nanozyme as a self-cascade catalyst with hydrolase-like and catechol oxidase-like activities. Taking organophosphorus pesticides as an example, we constructed a self-cascade catalytic reaction for the one-step colorimetric detection of isocarbophos. Specifically, the hydrolase-like activity of Cu/Ce-MOF-808 can hydrolyze isocarbophos to produce colorless isopropyl salicylate, which is further oxidized by the catechol oxidase-like activity of Cu/Ce-MOF-808 and complexed with 4-aminoantipyrine (4-AAP) to produce red quinoneimine under neutral conditions with illumination. Thus, a colorimetric strategy for sensitive isocarbophos analysis is developed, with a linear range of 0.90–400.00 μg·mL–1 and a detection limit of 0.42 μg·mL–1. This research presents a new approach to the design and synthesis of nanozymes and has great application potential in the field of nanozyme cascade biosensing.
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DOI
PubMed
高影响因子
GREEN CHEMISTRY
·
2024
·
IF 9.3
Xin-Ran Shi,Meng Qiao,Yan Wei,Ling-Xia Yun,Jie-Xin Wang,Jian-Feng Chen
MOF-74 or M2(dhtp) (M = metal ions, dhtp = 2,5-dihydroxyterephthalic acid), as a typical class of metal–organic frameworks (MOF), have garnered considerable interest due to their abundant unsaturated metal sites. However, environmental and economic limitations caused by the extensive use of organic solvents in traditional syntheses hinder their industrial applications. Although water as a green solvent is considered to be the best candidate solvent, water-based MOFs often have poor crystallinity and long synthesis time, and controlling the particle size is difficult. Herein, a water-based strategy is proposed to synthesize high-quality MOF-74–Co with controllable particle sizes in a rotating packed bed (RPB) reactor using high-gravity technology. MOF-74–Co could be rapidly prepared in the RPB, and shows a smaller and more uniform particle size, higher crystallinity, and larger specific surface area, as compared to the counterpart prepared in a traditional stirred tank reactor. Further adopting acetic acid as a modulator, the as-prepared MOF-74–Co has the highest BET surface area (1599 m2 g−1) in the reported literature so far and simultaneously possesses a high space–time yield (293 kg m−3 day−1). High-quality MOF-74–Zn and MOF-74–Ni can also be prepared, proving the generality of this strategy. Furthermore, the small-sized MOF-74–Co-78 nm exhibits a faster adsorption rate and a larger saturation adsorption capacity (298 mg g−1) for CO2 compared with large-sized samples. This study not only advances the field of green synthesis of MOFs but also paves the way for efficient manufacturing processes in MOF-74 synthesis for CO2 adsorption.
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Materials Today Bio
·
2025
·
IF 10.2
San-yang Yu,Ting Wu,Kai-hao Xu,Ru-yue Liu,Tian-hao Yu,Zhen-hua Wang,Zhong-ti Zhang
Critical-size bone defects remain a significant clinical challenge. The lack of endogenous stem cells with osteogenic differentiation potential in the defect area, combined with the inflammatory responses induced by scaffold implantation, highlights the need for biomaterials that can deliver stem cells and possess inflammatory regulation properties. In this study, we developed a 3D bioprinted gelatin methacrylate (GelMA) hydrogel scaffold modified with luteolin-loaded ZIF-8 (LUT@ZIF-8) nanoparticles, designed to deliver bone marrow mesenchymal stem cells (BMSCs) to the defect site and release bioactive components that promote osteogenesis and modulate the immune microenvironment. The LUT@ZIF-8/GelMA hydrogel scaffolds demonstrated excellent physical properties and biocompatibility. The sustained release of luteolin and zinc ions from the LUT@ZIF-8 nanoparticles conferred antibacterial, osteoinductive, and inflammatory regulation effects. The immune microenvironment modulated by LUT@ZIF-8/GelMA hydrogel scaffolds facilitated osteogenic differentiation of BMSCs. Furthermore, in vivo experiments confirmed the osteogenic and inflammatory regulation capabilities of the LUT@ZIF-8/GelMA hydrogel scaffolds. In conclusion, the 3D bioprinted LUT@ZIF-8/GelMA hydrogel scaffolds exhibit osteoimmunomodulatory properties, presenting a promising strategy for the treatment of bone defects.
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DOI
PubMed
高影响因子
Reaction Chemistry & Engineering
·
2025
·
IF 3.1
Ning Zhao,Shi-Yu Liu,Zhuang Liu,Xiao-Jie Ju,Rui Xie,Wei Wang,Da-Wei Pan,Liang-Yin Chu
Antimicrobial polyvinyl alcohol (PVA) hydrogel microfibers that contain metal–organic framework microparticles with Ag+ (AMOF) and Zn2+ (ZMOF) and cellulose nanocrystals (CNCs) are controllably and continuously prepared by a microfluidic spinning method. The CNC endows the PVA networks with good mechanical properties via the formation of hydrogen bonds, while the AMOF and ZMOF allow the release of Ag+ and Zn2+ respectively for achieving antibacterial and antioxidant properties. The microfiber size can be flexibly and precisely regulated by adjusting the flow rates of both dispersed and continuous phases. The PVA hydrogel microfibers with both AMOF and ZMOF show tensile strengths of 4.78 MPa, and good stretchability of 768.3%. These microfibers show long-lasting ion release behaviors, with the released concentrations of Ag+ and Zn2+ ions reaching 1.113 mg L−1 and 0.005 mg L−1 within 96 h. Meanwhile, these microfibers exhibit good antimicrobial properties against E. coli O157:H7 and S. aureus within 24 h due to the Ag+ released from the AMOF. Moreover, such microfibers show good antioxidant properties by continuously inhibiting ·OH generation over 12 h due to the Zn2+ released from the ZMOF. This work provides a novel strategy for rational design and creation of hydrogel microfiber materials with good antimicrobial performances.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2025
·
IF 9
Xinyue Shang,Ruoman Ji,Lijuan Gao,Shuyi Li,Riji Qiu,Ting Wang
After modification of MOF-919 by bovine serum albumin (BSA) and further membrane formation, a novel metal-organic framework (MOF) chiral membrane based on protein functionalization was prepared. In the process, the stability of biomacromolecules under harsh conditions could be enormously raised on account of the combination MOF and BSA, while imparting chirality to the modified MOF. The influence of conditions such as reaction time, pH, initial concentration and salt concentration on the efficiency of MOF immobilized BSA were discussed. The outcomes indicated that the binding between MOF-919 and BSA was due to the synergistic interplay of pore diffusion and surface adsorption mechanisms. Meanwhile, after the immobilization, the composite material (MOF-919@BSA) was developed as a new kind of chiral splitter that combined with polyethersulfone to form the MMM. As well as the concentration of feed solution, thickness of membrane, proportion of biocomposite materials in membrane, the penetration time, cycle index and the micro environment of BSA on the separation of chiral enantiomers from the MMMs were investigated. The chiral membrane had excellent selectivity and high flux in the process of transporting chiral enantiomers. After that, the reliability of the mechanism for chiral separation was demonstrated through molecular docking simulations. At the same time, MOF@BSA-PES mixed matrix membrane manifested superior performance compared with the majority of state-of-the-art chiral membranes.
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CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Pengpeng Guan,Caijie Yuan,Jiali Li,Zhou Wen,Enling Hu,Guangqian Lan,Bowen Cheng,Yinggui Huang,Fei Lu
The inadequacy of current antithrombotic therapies lies in the limited efficacy of pharmacotherapy and the poor targetability of drugs to thrombotic sites. To address these challenges, we developed a multifunctional nanoplatform, Fe 3 O 4 @MC-DEA-PBAP (FMDP), which integrates magnetic responsiveness and erythrocyte targeting for magnetic hyperthermia thrombolysis (MHT). FMDP is constructed using metal–organic frameworks (MOFs) crosslinking CaCO 3 /cyclodextrin as the base carrier, modified with 2-(Diethylamino)ethyl methacrylate (DEA) and 4-hydroxyphenylboronic acid pinacol ester (PBAP), then conjugated with nano-ferric oxide for MHT. DEA and PBAP make FMDP to adhere onto erythrocytes and scavenge reactive oxygen species (ROS), respectively. In vitro experiments proved that FMDP exhibits high photothermal conversion efficiency and robust magnetic responsiveness, enabling the thrombolytic efficiency of FMDP was three times that of uPA group. In addition, FMDP adhere to erythrocytes (83.5 %) and reach the thrombi under the cover of erythrocytes for MHT. In addition, FMDP effectively scavenges ROS, mitigating endothelial damages and promoting vascular regeneration. Overall, FMDP represents a promising therapeutic strategy for the comprehensive management of thrombosis, offering improved efficacy and reduced bleeding risks compared to conventional thrombolytic therapies.
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INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Hong-Bin Luo,Zhi-Xing Han,Kai-Xin Zhao,Xin-Ru Wu,Wei-Jie Cai,Yangyang Liu,Xiao-Ming Ren
Organophosphorus nerve agents are among the most hazardous chemical warfare agents, posing serious risks to human health. Developing efficient catalysts and composite materials for their detoxification remains a significant challenge. In this study, we present the first example of zirconium oxide (ZrOx) nanozyme derived from a zirconium-based metal–organic framework (Zr-MOF), which exhibits outstanding catalytic activity for the hydrolysis of a nerve agent simulant, dimethyl-4-nitrophenyl phosphate (DMNP). Moreover, ZrOx was incorporated into a poly(vinyl alcohol) (PVA) matrix with 1,4-diazabicyclo[2.2.2]octane (dabco) as a base, forming a hydrogel composite membrane, named ZrOx@PD. Notably, ZrOx@PD demonstrates superior catalytic efficiency for the solid-phase hydrolysis of DMNP under ambient conditions, outperforming many previously reported catalytic materials and highlighting its potential as a protective material against nerve agents.
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DOI
PubMed
高影响因子
Journal of Inorganic and Organometallic Polymers and Materials
·
2025
·
IF 4.9
Zhang Qiuyun,He Maozhen,He Shijian,Lei Yanhui,Zou Huixin,Zhang Xiaojuan,Hu Yulin,Zhang Yutao
Photocatalytic organic pollutant degradation offers new perspectives for sustainable sunlight utilization and wastewater purification. In this study, the flower-like Bi 2 O 2 CO 3 (BOC) nanosheets were incorporated into zirconium-based MOFs (MOF-801) for the construction of BOC@MOF-801 heterojunction nanocomposites, through a simple one-pot hydrothermal route to remove persistent rhodamine B (RhB) dye efficiently. The as-synthesized photocatalysts were systematically characterized by XRD, FTIR, SEM, EDS, N 2 physisorption, TG, XPS, UV-Vis DRS, PL, transient photocurrent, and EIS techniques. The results of all characterization studies confirmed that the incorporation of BOC into MOF-801 improved the textural properties, visible light response-ability, and the formation of heterojunctions with better charge transport. All BOC@MOF-801 photocatalysts show high activity, with the BOC@MOF-801-0.2 nanocomposite reaching 98.8% RhB (50 mg/L) degradation after 120 min under visible radiation, superior to individual BOC and MOF-801. This improvement possibly due to the relatively high specific surface area (316.2 m 2 /g), suitable pore volume (0.17 cm 3 /g), mesoscale pore size (3.2 nm), narrowed band gap (3.22 eV), and higher photocurrent. Importantly, the free radical scavenging experiment exhibited that holes and · O 2 − radicals are the main species responsible during photodegradation. Moreover, a potential mechanism for the breakdown of RhB dye is also discussed. This research highlighted an efficient way to develop MOFs-based heterojunction hybrid materials for environmental remediation applications. Graphical Zirconium-based MOFs (MOF-801) supported Bi 2 O 2 CO 3 nanocomposites (BOC@MOF-801) were successfully synthesized via a simple one-pot hydrothermal route, which was subsequently applied to photocatalytic degradation of organic dye.
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高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2025
·
IF 4.7
Junru Li,Hui Wang,Xuefei Wang,Jinmei Ye,Xiaodong Wang,Bingchun Xue
In this study, a bimetallic nickel-doped Zn-MOF (Ni@Zn-MOF) was successfully fabricated by the hydrothermal method for the removal of norfloxacin (NOR) in pharmaceutical wastewater. The structural and surface characteristics of Ni@Zn-MOF were systematically characterized using SEM-EDS, BET, XRD, FT-IR, XPS, and Zeta potential analyses. The experimental results demonstrated that NOR could be effectively removed within a wide pH range from 3 to 11, achieving a maximum removal efficiency of approximately 94% under optimal adsorption conditions. The adsorption behaviors of NOR were in good accordance with the pseudo-second-order kinetic model and the Freundlich isotherm model. The adsorption mechanism study revealed that the good adsorption performance originated from the synergistic effects of multiple interactions, including pore filling, metal coordination, electrostatic attraction, hydrogen bond, and π-π stacking interactions. Notably, the adsorption-saturated Ni@Zn-MOF demonstrated exceptional regeneration capability and stability, maintaining removal efficiencies above 60% for NOR after five consecutive adsorption-desorption cycles. The current study suggests that the engineered Ni@Zn-MOF nanocomposite can be as a promising functional material for sustainable removal of residual antibiotic contaminants in practical wastewater treatment applications.
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高影响因子
CRYSTENGCOMM
·
2021
·Vol. 23
·期 29
·5097-5105
·
IF 3.545
Zhenguo Wang,Ke Yu,Rong Huang,Ziqiang Zhu
With the development of the economy, energy shortages and the greenhouse effect gradually become problems facing humanity. Hydrogen energy is clean energy and is expected to become the most vital low-carbon energy in the future. At present, industrial hydrogen production mainly uses precious metals such as Pt. Therefore, it is of great significance to design a low-cost hydrogen evolution catalyst comparable in terms of hydrogen production performance and stability. In this work, porous Co3O4 with a hollow structure was prepared using the MOF template method, and VS2 nanosheets were uniformly attached and grown hydrothermally on it, thereby constructing a unique morphology of TS-Co3O4@VS2. The test results show that the catalyst can achieve a hydrogen evolution overpotential as low as 175.29 mV and a low Tafel slope (57.0 mV dec−1) and can work stably for 500 cycles at a current density of 100 mA cm−2 without noticeable performance degradation. Compared with other similar materials, this material significantly improves the kinetic process of the HER, reduces the reaction energy barrier for hydrogen evolution, and improves the operational stability of the catalyst. We believe that this material can provide a reference for the design of transition metal disulfide catalysts.
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