INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2024
·
IF 3.8
Zhengchu Yue,Yanran Cheng,Qi Jiang,Xueyun Bai,Xiaolong Fang,Xinyu Zhao,Yao Yao,Didi Dong,Yuanyuan Che,Ganggang Chang
As a safe and efficient hydrogen storage material, ammonia borane (NH3–BH3, AB) shows great promise in the era of clean energy advocated by hydrogen. Thus, it is imperative to focus on the exploitation of high-performance heterogeneous catalytic systems for the effective utilization of hydrogen energy stored in AB. However, noble metal catalysts as high-efficiency systems suffer from high expenditure, and the traditional powder-based catalyst faces poor processability and recoverability. Herein, a bimetallic (Co/Ni) MOF-derived CoNiP/hierarchically porous carbon (HPC) monolithic aerogel was successfully prepared by the gelation–carbonization–phosphorization method and applied in the hydrolysis of AB. The ultrasmall transition bimetallic phosphide CoNiP nanoparticles were uniformly fabricated in the hierarchically porous aerogel after pyrolysis. Benefiting from the rapid mass transfer and high exposure of well-defined CoNiP-active species within the hierarchical aerogel support, the Co0.3Ni0.7P/HPC aerogel performed high hydrogen evolution activity and exhibited fast hydrogen generation rate with a completion time of 2 min under mild conditions. The theoretical calculations reveal the key effects of the adsorption energies between AB and water on CoNiP-active sites in the Co0.3Ni0.7P/HPC aerogel. Furthermore, the Co0.3Ni0.7P/HPC monolithic aerogel catalyst can be effortlessly separated and recycled at least 10 times without a remarkable loss of activity. The controllable design of P-doped bimetallic species in the porous aerogel herein should serve as the foundation for the preparation of practical functional monolithic applied catalysts for the hydrolysis of AB.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Ruyue Cong,Kaiyue Hu,Dandan Hu,Jingran Sun,Jinglu Yao,Zhiyong Guo,Sui Wang,Yufang Hu
The detection of UDG activity is essential for understanding DNA damage repair mechanisms, assessing cellular genetic stability, and advancing diagnostics and treatments for related diseases. An advanced electrochemical biosensor based on a silver-enhanced copper metal–organic framework (Ag@Cu-MOF) has been developed for the sensitive and selective detection of uracil-DNA glycosylase (UDG) activity in cellular environments. This design incorporates a prism substrate to stabilize the liquid phase on the electrode surface, with DNA probes immobilized on the prism surface. Upon UDG-catalyzed uracil excision, the probe undergoes structural changes, initiating a cascade reaction. The abundance of free DNA ends facilitates the approach of MOF materials to the electrode interface, creating a stable environment conducive to H 2 O 2 reduction, thereby amplifying the electrochemical signal. Comparative catalytic analyses revealed that the Ag@Cu-MOF-modified electrode, with its enhanced conductivity and high surface area, achieved efficient catalysis compared to Cu-MOF. The biosensor exhibited a linear response to UDG concentrations ranging from 0.00002 to 0.5 U/mL, with an impressively low detection limit of 0.00002 U/mL, highlighting its capability for quantitative analysis. The sensor demonstrated high selectivity, minimal interference from other biomolecules, and stable performance across multiple cycles, underscoring its robustness. Furthermore, UDG activity was successfully detected at varying cell densities and under hypoxic conditions, providing valuable insights into cellular DNA repair mechanisms and responses to stress. In summary, the Ag@Cu-MOF-based biosensor offers a promising platform for detecting UDG activity in cancer diagnostics and cellular research, with potential applications in monitoring DNA repair activities under both physiological and pathological conditions.
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
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.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Zhe Zhang,Juping Wang,Maria Serdechnova,Valeryia Kasneryk,Zheng Zhang,Carsten Blawert,Hao Wang,Mikhail L. Zheludkevich,Fei Chen,You Zhang
A novel inhibitor-loaded bilayer hybrid system based on the LDH inner layer and MOF outer layer is designed on an aluminum alloy 2A12 surface to improve corrosion performance. The hybrid film system covers the inherent cavities and intercrystalline defects of the LDH film using the affinity between the LDH and the MOF compounds. The results demonstrate that the LDH-inhI precursor film is entirely covered by new Zn-based MOF microrods. The LDH-inhI precursor film is partially dissolved and recrystallized in favor of MOF crystal growth to strengthen the binding adhesion between LDH and MOF films. The LDH-inhI/MOF-inhII bilayer film shows significantly enhanced corrosion resistance through the synergistic action of LDH and MOF nanocontainers doped with different corrosion inhibitors (vanadates, 2,5-furandicarboxylic acid, and benzotriazoles). Due to the multiple loadings of the MOF film and the sustained-release of the LDH film, this method provides an effective approach to developing new anticorrosion systems and enhancing both the barrier ability and active corrosion protection performance of LDH-based conversion treatments.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Ao Ding,Yupeng He,Fei-Fei Chen,Yan Yu
Bacterial infections result in significant burdens on public health, especially with the increasing prevalence of antibiotic resistance owing to the overuse of antibiotics. The development of the next-generation nanoantibacterial materials as alternatives to antibiotics is urgently needed. Metal–organic frameworks (MOFs) have been emerging as promising antibacterial materials. However, the impact of metal centers on the properties and antibacterial activity of MOFs has not been clarified to date. In this work, five M-MOF nanomaterials (M = Fe, Co, Ni, Cu, Zn) are synthesized with 2-methylimidazole as an organic ligand. Subsequently, the minimum inhibitory concentration (MIC), minimum bactericidal concentration, and time-kill curves are studied to evaluate their antibacterial activity. In addition, the destruction of the bacterial cells after treatment with M-MOFs is observed via scanning electron microscopy. The experimental results demonstrate that the Co-MOF and Zn-MOF polyhedra exhibit optimal antibacterial activity. They can effectively inhibit the growth of both Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus at a low concentration. On the other hand, the Fe-MOF irregular particles show the weakest antibacterial activity among five M-MOFs and the antibacterial activity of the Ni-MOF and Cu-MOF nanosheets are comparable to each other. The huge difference in antibacterial activity of M-MOFs is attributed to the difference in the shape and size, specific surface area, surface charge, ion release, and production of reactive oxygen species. Overall, this study clarifies the relationship between metal centers in M-MOFs and their antibacterial activity.
✓ 已验证
产品关联
DOI
高影响因子
MOLECULES
·
2024
·Vol. 29
·期 17
·4230
·
IF 4.2
Yan Gao,Shuai Huang,Nina Han,Jianshe Zhao
In this work, a novel heterogeneous catalyst consisting of peroxophosphotungstate, microporous MOF-808, and mesoporous SBA-15 was synthesized, characterized, and used to remove sulfides from model fuel. The prepared material, PW4@MOF-808@SBA-15, exhibits excellent catalytic activity with a desulfurization efficiency of 99.8% in 60 min for multicomponent simulated fuel, and the desulfurization rate can reach more than 90% after ten consecutive cycles. The excellent catalytic activity and reusability are attributed to the hierarchically porous hybrid material MOF-808@SBA-15, which can effectively encapsulate PW4and provide a site for the oxidation of sulfides.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Yan-Mei Zhang,Wen-Wen Xie,Xiao-Xue Hu,Xin-Ru Chen,Heng Mao,Li-Hao Xu,Xin-Yu Shi,Tao Wang,Ying-Nan Feng,Zhi-Ping Zhao
Bioethanol has garnered widespread attention as a potential substitute for traditional fossil fuels. Focusing on the treatment of bioethanol fermentation exhaust is crucial for optimizing bioethanol recovery and achieving carbon dioxide (CO 2 ) purification. This study successfully achieved the large-scale synthesis of zeolitic imidazolate framework-8 (LSZIF-8), which was then incorporated into polydimethylsiloxane (PDMS) to fabricate large-area ZIF-8/PDMS/PVDF mixed matrix membranes (MMMs) for bioethanol recovery from fermentation exhaust via vapor permeation (VP) processes. The ZIF-8/PDMS/PVDF MMMs exhibited a 1.5-time increase in ethanol permeability and selectivity improved by 1.7 times compared to the PDMS/PVDF membrane. The mass transport behavior of ethanol and CO 2 molecules within the membrane, as well as examining the interactions between different components was systematically explored. It delves into the disparities in separation performance between PDMS/PVDF membrane and ZIF-8/PDMS/PVDF MMMs with nitrogen (N 2 ), water vapor as the third component. Notably, high-quality LSZIF-8 crystals serves as a crucial source of raw materials for the continuous preparation of high-performance MMMs, addressing the limitation of traditional nanoparticle fillers in terms of scalability for production. This study paving new avenues for purifying fermentation exhaust and recovering bioethanol, while simultaneously present significant potential for industrial applications.
✓ 已验证
产品关联
DOI
高影响因子
FUEL
·
2024
·
IF 6.7
Chongchong Chen,Hexiang Gao,Hui Li,Mingchao Wang,Jie Zhang,Tengfei Li,Wenjia Wu,Zhirong Yang,Jingtao Wang
The poor water-stability and cross-layer proton transfer property pose a challenge to the lamellar metal–organic frameworks (MOFs) membrane when acting as a promising proton exchange membrane. Herein, we report an adipic acid-mediated strategy to improve the water-stability and the cross-layer proton conductivity of CuTCPP lamellar MOF membrane, which achieves a maximum power density and current density of 112.6 mW cm −2 and 424.4 mA cm −2 , respectively. Adipic acid with extra functional groups (–PO 3 H 2 , –COOH) stably bridges the adjacent crystal layers via the terminal carboxylic acid anchoring Cu sites. In particular, the extra functional groups introduced into the adipic acid regulate the allocation of hydrogen bonding networks in an umbrella-shape around adipic acid with copper-porphyrin structures as external margin, enriching the coherence of hydrogen bonding network on the proton transport path. Benefiting from the regular pore structure of MOF, the optimized hydrogen bonding networks in adjacent crystal layers construct a more abundant through-plane transfer pathway. The resultant through-plane proton conductivities of CuTCPP-PO 3 H 2 /–COOH membranes are up to 108/89 mS cm −1 at 80 °C and 100 % RH, which is ∼ 6-fold higher than that of the pristine CuTCPP membrane (13 mS cm −1 ), with a conductivity attenuation of < 5 % during a humidity cycling test for 12 times.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2024
·Vol. 141
·期 36
·e55918
·
IF 2.7
Juan Chai,Yaxin Hou,Yanhui Zhang,Yan Xia,Shiya Ran,Shengyan Wang,Nianfu Chen,Zhenghong Guo,Juan Li,Zhengping Fang
Inspired by the significant catalytic charring effect of metal–organic frameworks (MOFs), Cu-MOF decorated ammonium polyphosphate (APP@Cu-MOF) was prepared by coupling agents to improve the fire safety of epoxy resin (EP). After adding 9 wt% APP@Cu-MOF, the fire performance of EP is significantly improved with limiting oxide index (LOI) value of 29.4 and UL-94 V-0 rating. The peak heat release rate (PHRR), total smoke production (TSP), CO production, and CO 2 production of EP composite samples decreased by 34.6%, 54.7%, 24.6% and 30.0%, respectively. It is proposed that the synergistic effect among Cu-MOF and APP promoted the char formation of EP. The dense carbon layers formed a barrier that prevented the transfer of heat and inhibited the release of toxic gases, thus acting as a flame retardant. This work provides a new strategy to develop a high-efficient MOF-decorated flame retardant with smoke inhibition, toxicity reduction, and catalytic carbonization effect.
✓ 已验证
产品关联
DOI
高影响因子
Engineering Research Express
·
2024
·Vol. 6
·期 2
·025015
·
IF 1.5
Wenlong Deng,Linyu Mei,Yue Niu,Zicheng Zhang,Yunpeng Shao
Metal–organic framework (MOF) materials have been increasingly used owing to their high porosity, chemical stability, and semiconducting properties. With the help of MOF materials, MOF-based SERS substrates can exhibit high sensitivity. Herein, we proposed a flower-like Ag nanoparticles (AgNFs)/metal–organic framework (MOF)/ carbon fiber cloth (CFC) substrate-based surface-enhanced Raman scattering (SERS) sensor for the high-sensitive detection of dye molecules. MOF is used as a signal amplifier to accelerate the approach of dye molecules near AgNFs on the MOF surface and anchor AgNFs on the substrate surface. The detection occurred on the AgNFs/MOF/CFC SERS substrate, providing an enhancement factor (EF) of 5.53 × 107. Benefitting from the signal amplification function of AgNFs/MOF/CFC and the superiority of SERS, this sensor represented high sensitivity performance and a wide detection range. Importantly, the combination of Co elements with silver in the AgNFs/MOF/CFC composite substrate enhances the resistance of Ag to oxidation by atmospheric moisture resulting in excellent stability (the substrate maintained good SERS activity after 45 days of exposure to air) of the SERS substrate. The basic performance of the substrate was evaluated using rhodamine 6 G (R6G). (Detection limit reached 10−12 M) The detection limit of TC was 0.1 ppm. This method provides a potential and cost-effective strategy to develop advanced SERS sensing devices to effectively monitor pollutants in environmental waters.
✓ 已验证
产品关联
DOI
高影响因子
FOOD CONTROL
·
2024
·
IF 5.6
Yiting Zhou,Jingming Zhou,Yankai Liu,Yumei Chen,Hongliang Liu,Xifang Zhu,Peiyang Ding,Chao Liang,Enping Liu,Sixuan Wu,Aiping Wang
A novel electrochemical immunosensor for the sensitive detection of monensin (MON) was developed. The sensor platform utilized anti-MON monoclonal antibodies and a nanocomposite (Ce-MOF@AgAuNPs), composed of cerium-based metal-organic frameworks decorated with silver-gold nanoparticles. The physicochemical properties of the Ce-MOF@AgAuNPs nanocomposite were investigated using transmission electron microscopy, energy dispersive X-ray, UV–Vis spectrophotometry, and fourier transform infrared techniques. The stepwise fabrication process and electrochemical performance of the immunosensor were investigated through electrochemical impedance spectroscopy and cyclic voltammetry. The sensor exhibited excellent analytical performance for MON detection, with a wide linear response range from 0.05 to 250 ng mL −1 and a low LOD of 0.008 ng mL −1 . Additionally, the immunosensor exhibited high accuracy, with recovery rates ranging from 97.4% to 103.2% in chicken liver and 96.0%–104.7% in milk. This developed immunosensor shows great potential for food safety applications, demonstrating high specificity, stability, and reproducibility in the detection of MON.
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2024
·
IF 3.5
Chengzhao Zhu,Miaomiao Zheng,Mingyu Liao,Nan Jiang,Yuanjie Xiao,Jianbin Liu,Linfeng Zhang,Jia Guo,Huadong Wu,Hao Yan
A functionalized modified metal–organic framework material, T-MOF-808, was synthesized through hydrophobic modification with tetraethyl orthosilicate (TEOS) and chlorotrimethylsilane (TMCS). Then a supported oxidative desulfurization catalyst, [C12Py]3(NH4)3Mo7O24/T-MOF-808(s), was prepared by using a heteropoly acid ionic liquid as the active component. The prepared samples were characterized using FT-IR, XRD, SEM, TEM, XPS, etc. [C12Py]3(NH4)3Mo7O24/T-MOF-808(s) was used in the oxidative desulfurization of dibenzothiophene (DBT). At the same time, the effects of different loadings of the active component, oxygen sulfur ratios, reaction temperatures, and reaction time were also investigated. [C12Py]3(NH4)3Mo7O24/T-MOF-808-15%(s) could oxidize 100% of DBT in 40 min at 60 °C. Significantly, the catalyst exhibited no discernible decline in catalytic activity after 14 runs. In addition, the efficiency of sulfur removal was 85.76% in actual diesel oil. It was found that the cooperative impact of hydrophobic modification and electron transfer makes an important contribution to the high activity. The hydrophobic modification provides a novel approach for using MOF materials in the oxidative desulfurization process.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）