Catalysis Science & Technology
·
2018
·Vol. 8
·期 16
·4010-4017
·
IF 5.365
Nazir Ahmad,Hussein A. Younus,Adeel H. Chughtai,Kristof Van Hecke,Zafar A. K. Khattak,Zhang Gaoke,Muhammad Danish,Francis Verpoort
Synthesis of 2D MOFs is often sensitive to the reaction conditions like temperature and solvent etc. Cu(II)-5-azidoisophthalate MOF (Cu(II)–5N3IP) has been synthesized at room temperature as well as under solvothermal conditions. The azide functional group remained stable during solvothermal synthesis at 85 °C. Cu(II)–5N3IP crystallized in a Kagomé-type structure. Typical Cu2 paddle-wheels are connected to each other by 5N3IP ligands in infinite 2D sheets in the (001) plane, featuring 1D infinite channels within each layer. This MOF is used for the adsorption of methylene blue (MB), rhodamine B (RhB), methyl orange (MO), and Congo red (CR). The adsorption is selective to the dimensions, shapes and ionic strengths of the dyes. Cu(II)–5N3IP exhibited adsorption rates in the order MB > CR > RhB > MO. Cu(II)–5N3IP is used as a catalyst for aerobic oxidation and Knoevenagel condensation. 3–10 mol% of Cu–5N3IP selectively catalyzes the oxidation of benzyl alcohol to benzaldehyde in 9–20 h at 60 °C. In Knoevenagel condensation, the reaction of both unsubstituted and substituted benzaldehydes at room temperature was observed at a very low catalyst loading of 3 mol% of MOF within a short time of 3–60 min. This 2D MOF has proved to be more efficient for dye adsorption and the catalytic applications under investigation (such as alcohol oxidation and Knoevenagel condensation) than its analogous 3D or 0D materials.
研究领域:
材料科学
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化学工程
·
环境科学
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2021
·
IF 3.764
Xueliang Mu,Zihan Wang,Yukun Zhong,Teng Jiang,U Kei Cheang
Magnetic microrobots have potential applications in various fields of biomedicine, such as minimally invasive surgery, targeted diagnosis, and treatment. In this work, the crystalline properties of ZnO on two-dimensional (2D) magnetic microrobot precursors were tuned by annealing at different temperatures. On this basis, zeolite-imidazole framework 8 (ZIF-8) was then synthesized on the precursor surface. Through conventional characterization studies, the results showed that the precursor tuned by annealing treatment (from 350 to 500 °C) could be used for the synthesis of ZIF-8 on microrobots with specific two-dimensional structures, thus becoming metal–organic framework (MOF)-based microrobot. Also, the optimal temperature was around 410 °C, which contributed to surface roughening of the precursor and provided more reaction sites for the growth of cubic ZIF-8 particles. The MOF-based 2D microrobots were tested for their locomotive capabilities using a three-dimensional (3D) Helmholtz coil system and were able to reach a maximum forward swimming speed of 107 μm/s under a 12 Hz rotating magnetic field of 4 mT. The steerability of the microrobots was validated through successful navigation inside a microfluidic channel. The high drug loading efficiency of the MOF-based microrobots was validated using a drug loading test. In summary, MOF-based microrobots have high drug loading capacity and strong locomotive capabilities, which suggest a strong potential for in vivo biomedical applications in hard-to-reach areas of the human body.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2020
·Vol. 23
·期 1
·69-81
·
IF 3.117
Yue Zhou,Yanli Chen,Maobin Wei,Hougang Fan,Xiaoyan Liu,Qianyu Liu,Yumeng Liu,Jian Cao,Lili Yang
The exploitation of low-cost, efficient and stable electrocatalysts for overall water splitting in alkaline media is critical for future renewable energy systems, yet still remains a great challenge. Herein, we report the in situ growth of porous NiCoSe nanosheet arrays derived from 2D MOFs on Ni foam through a simple ion-exchange reaction followed by a hydrothermal process. Benefiting from the unique 2D multi-porous framework with high electrochemical active surface area, conductivity and open channels for the release of gaseous products, the as-prepared NiCoSe nanosheet arrays exhibit excellent electrochemical activity with a low overpotential of 170 mV for the hydrogen evolution reaction (HER) at 10 mA cm−2 and 278 mV for the oxygen evolution reaction (OER) at 20 mA cm−2 and long-term stability. Furthermore, the full cell only requires 1.51 V to drive the current density of 10 mA cm−2 when the NiCoSe nanosheet arrays are used as both anode and cathode, which also exhibits distinguished durability for over 48 h. The present work presents a general strategy for the rational design and synthesis of multifunctional 2D porous electrocatalysts, which is also expected to extend to other noble-metal-free catalysts.
研究领域:
能源材料
·
电化学
·
催化化学
·
纳米材料科学
·
可持续能源技术
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
XinRan Ma,Haotong Li,Hui Yu,Gaohong He,Ning Zhang
Zeolitic imidazolate framework-8 (ZIF-8) membranes are promising for hydrogen purification due to their molecular-sieving capability, yet fabricating compact and defect-free crystalline layer remains challenging by conventional heterogeneous nucleation. Herein, we propose an interfacial engineering strategy using a porous 2D Co-MOF nanosheet seed layer to enable secondary growth of high-performance ZIF-8 membranes. Ultrathin Co-MOF nanosheets (∼2 nm) with mesoporous structures were synthesized via a water-assisted solvothermal method, assembled into a uniform seed layer on α-Al 2 O 3 , and activated by 2-methylimidazole vapor to enhance intergrowth of ZIF-8 polycrystalline layer. The optimized membrane achieves a H 2 permeance up to 6.0 × 10 −7 mol m −2 s −1 ·Pa −1 (∼1800 GPU) with an ideal H 2 /CO 2 selectivity of 13.38, surpassing the 2008 Robeson upper bound. Crucially, it maintains stable separation performance for an equimolar H 2 /CO 2 mixture over 100 h, with no detectable decay in permeance or selectivity. This work offers a scalable route to robust MOF membranes for industrial hydrogen recovery.
✓ 已验证
DOI
高影响因子
TALANTA
·
2025
·
IF 6.1
Jian Shi,Hongren Wang,Runcheng Liu,Jie Yan,Mingshun Jiang,Yuanze Xu,Zezheng Zhang,Haipeng Si,Sen Wang,Shouzhen Jiang
Metal-organic frameworks (MOFs), known for their high porosity and tunable properties, have attracted significant interest in enhancing the sensitivity and functionality of plasmonic optoelectronic devices. However, their application in surface plasmon resonance (SPR) fiber-optic sensors remains challenging due to difficulties in preparing and transfer of large-area two-dimensional (2D) MOFs. Here, a large-area continuous ultrathin MOF film was successfully fabricated using an interfacial synthesis strategy and seamlessly adhered to tilted fiber Bragg gratings (TFBG). The resulting 2D MOF film not only exhibited excellent optoelectronic properties, thereby enhancing the plasmonic response in the sensing region, but also, due to its exceptionally high specific surface area, facilitated molecular enrichment within the effective sensing region. Subsequently, gold nanoparticles (AuNPs) were uniformly grown in situ on the 2D MOF films, leveraging the localized surface plasmon resonance (LSPR) effect of AuNPs to amplify the sensing signal, which significantly improved the sensor's performance for trace analysis. Concurrently, the AuNPs and the MOF-constructed nanozymes facilitated ultrasensitive glucose detection through a cascade catalytic reaction, obviating the need for additional receptors. The prepared sensor demonstrates excellent detection capabilities for glucose and DNA molecules in complex biological samples, such as serum. It exhibits strong performance in stability, reproducibility, and scalability, and holds potential for transformation in industrial testing applications. This design fully leverages the synergistic effects among diverse materials, enhancing the sensor's detection capabilities and providing valuable insights for the development of next-generation sensors.
研究领域:
材料科学
·
纳米技术
·
光电子学
·
分析化学
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生物传感器
·
等离子体学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Wenyu Yang,Mingbo Yang,Lingzhi Li,Siyuan Feng,Jiafan Wu,Na Du,Zinuo Shen,Tao Li,Zheyu Li,Ying Li,Zhihao Li
Two-dimensional metal–organic frameworks (2DMOFs)-based hybrid nanozymes integrate the excellent catalytic activity of 2DMOFs with intriguing properties of other functional nanomaterials, offering great opportunities in biosensing and catalysis applications. However, the versatile synthesis of 2DMOF-based hybrid nanozymes remains challenging due to the difficulty in precisely controlling interactions between 2DMOFs and other functional nanocomponents. In this work, a trifunctional surface ligand-mediated strategy was developed to rationalize these interactions and promote the general synthesis of 2DMOF hybrid nanozymes. The surface ligand not only prevents the nanocomponents from self-aggregation and keeps 2DMOF monodispersed to form ultrathin nanosheets, but also drives the assembly of 2DMOF and nanocomponent to form composite nanostructures. Using this strategy, a series of customizable hybrid nanozymes exhibiting synergistically catalytic activity, recyclability, cascade catalysis, and photo-enhanced catalysis were fabricated, respectively. Moreover, these hybrid nanozymes displayed excellent performance in H 2 O 2 detection, glucose sensing, and pollutant degradation. The successful demonstration of a general and facile strategy for synthesizing two-dimensional metal–organic framework (2D MOF) hybrid nanozymes paves the way for the development of 2D MOF-based nanomaterials and nanozymes with customizable functions. These materials hold significant potential in various applications, including catalysis, biosensing, disease diagnosis, and energy conversion.
研究领域:
材料科学
·
生物传感
·
催化化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Kaikai Xu,Lulu Kong,Kebin Ye,Beibei Xu,Yongming Deng,Yicheng Wang,Shaohua Wei
Phthalocyanine (Pc) is a promising class of metalloantibiotics with antibacterial properties, akin to many metalloantibiotics, that exerts its effect by disrupting the bacterial respiratory chain. Therefore, it is particularly crucial to develop simple and efficient antibacterial strategies to enhance the activity of antibiotics. The construction of metal–organic frameworks (MOFs) helps to improve the electron transfer ability of phthalocyanine antibacterial drugs and enhance their antibacterial activity. In this study, we report the synthesis of a two-dimensional (2D) NiPc-Cu MOF using a modified liquid–liquid interfacial method, offering a facile, scalable, and stable approach. The excellent electron transfer properties of the MOF significantly enhance the ability of NiPc to disrupt the respiratory chain, thereby boosting its antibacterial activity. Compared to NiPc alone, NiPc-Cu MOF demonstrated a 1000-fold reduction in the minimum inhibitory concentration (MIC 50 ) against Escherichia coli ( E. coli ), reaching 4 ng/mL—a level surpassing most reported metalloantibiotics and comparable to clinically used antibiotics. Furthermore, NiPc-Cu MOF selectively targets bacteria with minimal cytotoxicity to animal cells. Based on this, we have developed NiPc-Cu MOF as a safe antibacterial coating for catheters, characterized by excellent stability and superior antibacterial activity. This study provides a straightforward and effective strategy for enhancing the activity of molecular drugs that exert antibacterial effects by interfering with the respiratory chain.
研究领域:
微生物学
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药理学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Xuan-Ting He,Bo-Yu Li,Jia-Xiang Liu,Wen-Quan Tao,Zhuo Li
The surface chemical composition and building unit structures of membrane are the key factors to realize highly-efficient oil–water separation. Here we report the synthesis of Cu-CAT-1 metal–organic frameworks (MOFs) with unique two-dimensional (2D) hierarchical structures grown directly on copper mesh (Cu-CAT-1@CM) for oil–water separation. The Cu-CAT-1@CM membrane with micro/nano- architecture exhibits robust superhydrophilicity and underwater superoleophobicity characteristics, allowing gravity-driven oil–water separation by achieving ultrahigh flux up to 329 kL∙m −2 ∙h −1 . The membrane shows excellent separation performances by testing various oils, particularly actual crude oil and xylene, which are considered as the notorious pollutants in the water. The residual oil contents of six samples are all less than 24.6 mg∙L -1 . The mechanism analysis demonstrated that the appropriate hierarchical structures of the membrane surface is the code for the extreme wettability that remarkably improved the separation efficiency. Moreover, such a membrane with high performance can be readily synthesized by electrochemical method at room temperature in only 20 min, which shows the advantages of facile and environmentally friendly fabrication process as well as low cost. Overall, the membrane with energy-saving of gravity-driven and ultra-high permeability allows the rapid separation of oil–water mixture, showing the potential applications for resolving the problem of oil pollution.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Minjun Liu,Ying Liu,Xinru Liu,Chengcheng Chu,Ducheng Yao,Shun Mao
Metal organic framework (MOF)-derived materials normally have three-dimensional (3D) structure, while little attention has been paid to two-dimensional (2D) MOF-derived materials with high catalytic activity. Nevertheless, the underlying agglomeration and metal leaching issues of 2D MOF-derived catalysts hinder their real applications. In this work, we report a bimetallic nanocomposite (Ni-Fe-C-600-acid/GO) derived from 2D Ni-Fe-MOF and graphene oxide (GO) network. Employing Ni(0) and Fe 3 O 4 as active site, the Ni-Fe-C-600-acid/GO shows high efficiency in peroxydisulfate (PDS) activation for the removal of p-chloroaniline (PCA), and the catalyst/PCA dosage ratio (0.8) is substantially lower than those of the previous studies (3.9–156.9). The prepared catalysts demonstrate high catalytic activity over a wide pH range of 3–9 and maintain high efficiency after five cycles with good tolerance to inorganic anions. The singlet oxygen is identified as the predominant active species and relatively weak contributions from sulfate free radicals and hydroxyl radicals are confirmed. This catalysis system presents new insights in 2D MOF-derived catalysts in advanced oxidation processes .
研究领域:
材料科学
·
环境工程
·
催化
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Small
·
2024
·Vol. 21
·期 4
·2410657
·
IF 13
Jia Wang,De Wang,Zelin Zhao,Ganggang Chang,Wei Guo,Jun Xu,Yinyu Xiang,Junrui Li,Junsheng Li
Developing cost-effective ruthenium (Ru)-based HER electrocatalysts as alternatives to commercial Pt/C is crucial for the advancement of proton exchange membrane water electrolysis (PEMWE). However, the strong hydrogen adsorption of Ru-based catalysts restricts its activity. Herein, a strategy is reported to tune the electronic structure and improve mass transfer by implanting Ru atoms onto the (002) facet of two-dimensional zeolitic imidazolate framework-67 (Ru@ L ZIF (002) ) to optimize the d -band center ( ε d ) of Ru and the hydrogen spillover behavior. Benefiting from the ultrathin nanosheet structure and optimized ε d of Ru, the over-strong H adsorption energy is weakened and the electron/mass transfer is facilitated. Ru@ L ZIF (002) exhibits an overpotential of 9.2 mV at 10 mA cm −2 and a long-lasting stability of 35 days at 100 mA cm −2 . The mass activity and price activity of Ru@ L ZIF (002) is 2.9 and 14.7 times higher than Pt/C, respectively. More impressively, Ru@ L ZIF (002) delivers a cell voltage of 2.01 V at a high current density of 4 A cm −2 in PEMWE. The excellent long-term durability of 1200 hours operating at 4 A cm −2 with an ultralow decay rate of 7.5 × 10 −3 mV h −1 has been achieved, making it promising as a cost-effective alternative to Pt/C catalyst for PEMWE applications.
研究领域:
电催化
·
材料科学
·
能源化学
·
纳米材料
·
电化学工程
·
可持续能源技术
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2019
·
IF 3.218
Zhiwei Qiu,Tao Yang,Rui Gao,Guifen Jie,Wanguo Hou
In this study, a novel Cu-based metal−organic frameworks (Cu-MOFs) composite material was prepared, and used to develop a sensitive and efficient electrochemical ratiometric sensor for dopamine detection. Gold nanoparticles (NPs) and the conductive poly(xanthurenic acid) p(XA) were assembled on the Cu-tetrakis (4-carboxyphenyl) porphyrin (TCPP) surface by electrodeposition and cyclic voltammetry (CV) method, which greatly improved the electrocatalytic performance of the Cu-MOF modified electrode . Two substances (dopamine/DA, paracetamol/PA) with different electrochemical peaks were added to the electrolyte solutions , where DA was the analyte and PA was as a reference. The ratiometric value of differential pulse voltammetry (DPV) oxidation current (I DA /I PA ) linearly increased with the increasing concentration of DA with low detection limit. This electrochemical ratiometric approach based on the metal−organic framework composites is expected to be a valuable strategy for detection of other analytes.
研究领域:
分析化学
·
生物传感器
·
神经化学
·
电分析化学
·
纳米材料
·
药物分析
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Li-Juan Sun,Xiao-Yue Zhang,Chao Bai,Hui-Lin Guo,Chen-Min Han,Yi-Fan Zhang,Huai-Ming Hu
Three cobalt/nickel 2D MOF nanosheets (Co-nanosheet, Ni-nanosheet, CoNi-nanosheet) with a new bithiophene-tetraterpyridyl derivative organic ligand (4′,4″″,4″″″′,4″″″″″-([2,2′-bithiophene]-3,3′,5,5′-tetrayltetrakis(benzene-4,1-diyl))-tetra-2,2′:6′,2″-terpyridine, BTTB-tpy) were synthesized by a liquid-liquid interface coordination polymerization method. The electrochemical performance of these 2D MOF nanosheets was investigated by electroanalytical techniques using the three-electrode and two-electrode systems. The bimetallic CoNi-nanosheet has the best electrochemical properties , with a specific capacitance of up to 1034.0 F g −1 at a current density of 1 A g −1 and displays an excellent cycling stability with the capacitance retention rate of 86 % after 1000 cycles. In addition, the assembled CoNi-nanosheet//AC asymmetric supercapacitor (ASC) device exhibited a maximum energy density of 48.7 Wh kg −1 at a power density of 800.0 W kg −1 and the capacitance retention rate of 73 % after 5000 cycles at a current density of 5 A g −1 . The excellent electrochemical performance of bimetallic CoNi-nanosheet is likely attributed to that Ni and Co atoms in CoNi-nanosheet have a higher oxidation state.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
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