Materials Science and Engineering B-Advanced Functional Solid-State Materials
·
2023
·
IF 3.6
Bairui Tao,Honglin Zheng,Jiao Li,Fengjuan Miao,Peng Zhang
The construction and development of enzyme-free sensors made of non-precious metals that are extremely sensitive to glucose is of great importance for treatment of diabetes. A room temperature reaction method was used to grow ZIF-67@GO nanocubes on nickel foam substrates, followed by a hydrothermal method to construct Co(OH) 2 nanomaterials . From this NF/ZIF-67@GO/Co(OH) 2 enzyme-free glucose sensor with a unique structure was designed. The results and the charge transfer process of glucose's catalytic oxidation detection were systematically investigated in the composite material. The experimental results show that this sensor exhibits good electrochemical activity for glucose detection. It has a linear range of 0.1 μM-8.546 mM, a very high sensitivity of 2412.7 μA mM −1 cm −2 , and its low detection limit is 0.934 M (signal-to-noise ratio of 3). These results indicate that the sensor is capable of accurately and sensitively detecting glucose concentration and has great potential for use in practical applications. The synthesis method is simple, fast, low-cost and easy to apply to electrochemical electrodes. Besides, the material has reproducibility, stability and good selectivity .
研究领域:
生物医学工程
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材料科学
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分析化学
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Ya Yuan Zhang,Qiao Jing Lin,Ding Ling Gao,Yu Xiang Liu,Na Qin,Yan Xue Xue,Fei Fei Dai,Jian Hua Chen,Qian Yang
NHC/Co-MOF-Cu 2+ composite adsorbent materials were prepared through the in-situ synthesis of nitrogenous heterocyclic compounds (NHC) on Co-containing metal–organic framework (Co-MOF) using terephthalaldehyde (C 8 H 6 O 2 ) and p-Phenylenediamine (C 6 H 8 N 2 ) at room temperature. Subsequently, further modification with Cu 2+ was carried out. These materials were then utilized for the removal of dibenzothiophene (DBT) from simulated gasoline. The samples were analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR) and other methods. The results indicated the uniform attachment of NHC and Cu 2+ metal particles onto Co-MOF, confirming the successful synthesis of NHC/Co-MOF-Cu 2+ adsorption materials. The introduction of Cu 2+ enhanced the π-complexation between NHC/Co-MOF-Cu 2+ and DBT. The introduction of NHC brought heteroatoms and ring structures to the composite, increasing the electron cloud density of the NHC/Co-MOF-Cu 2+ composite and thereby amplifying the π-complexation with DBT. The adsorption capacity of NHC/Co-MOF-Cu 2+ for DBT (150.4 mg/g) is significantly larger than that of Co-MOF (102.5 mg/g). The adsorption process of NHC/Co-MOF-Cu 2+ for DBT followed the pseudo-second-order kinetic model and Langmuir model. Additionally, the adsorption process was found to be spontaneous and exothermic. Over five consecutive adsorption–desorption cycles, the efficiency of NHC/Co-MOF-Cu 2+ decreased by only 10 %, indicating its excellent regeneration performance.
研究领域:
材料科学
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环境科学
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高影响因子
MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 7
·482
·
IF 5.4
Zhu Yun,Luo Tianshu,Niu Jingge,Cao Jie,Pang Yizhuo,Hou Xiaohong
A novel two-dimensional metal-organic framework (2D MOF), 2D Co-MOF@MnO 2 , with oxidase-like activity was successfully prepared via a solvothermal method, and its mimetic oxidase-like activity was investigated in detail. Its kinetic parameters K m and V max were determined to be 0.048 mM and 5.897 × 10 − 7 Ms − 1 , respectively. Taking advantage of the material’s ability to catalyze the oxidation of 3,3’,5,5’-tetramethylbenzidine (TMB) and the inhibitory effect of uric acid (UA) on this oxidase-like activity, we designed and constructed a portable colorimetric sensing device for the rapid detection of UA. This device enabled UA detection within 3 min at room temperature. The proposed system showed a linear response in the concentration range 5-200 µM with a detection limit of 4.98 µM, which was comparable to or even better than several previously reported colorimetric methods. This proof-of-concept study presented a novel and efficient approach that had potential for future point-of-care (POCT) applications for uric acid detection, and may offer new insights into early disease diagnosis, health monitoring, and biomedical research. Graphical abstract The alternative text for this image may have been generated using AI.
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PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124306
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IF 7.5
Raza Ullah,Nasim Ullah,Abdul Qadir,Muzamil Ahmad,Alamgir,Muhammad Fayaz,Muhammad Rafiq,Adeel Ahmed,Muhammad Adnan,Fangqing Wang,Bing Yu,Hailin Cong
Photocatalysts based on metal–organic frameworks (MOFs) have garnered significant interest for enhanced advanced oxidation processes; yet, inadequate charge separation and limited availability of redox-active sites continue to impede their catalytic performance. A hierarchical Co-MOF/NiCu-MOF heterostructure was synthesised using an in-situ MOF-on-MOF growth strategy and employed for visible-light-assisted activation of peroxymonosulfate (PMS) to effectively degrade pharmaceutical contaminants. The integration of Co-MOF with bimetallic NiCu-MOF resulted in an interfacially linked framework exhibiting improved visible-light absorption, hierarchical structure, plentiful Co/Ni/Cu redox centers, and expedited interfacial charge transfer. The Co-MOF/NiCu-MOF demonstrated significantly enhanced catalytic activity relative to individual Co-MOF, Ni-MOF, Cu-MOF, and NiCu-MOF. Under optimized conditions, the Co-MOF/NiCu-MOF/PMS/visible-light system attained 98.2% ciprofloxacin (CIP) degradation with a pseudo-first-order rate constant of 0.1312 min −1 . The catalytic activity was significantly influenced by PMS dosage, catalyst loading, pH, CIP concentration, interfering species, and water matrix. The system exhibited superior performance in both tap water and simulated wastewater, indicating strong practical application. Radical quenching experiments and EPR analysis established that OH • was the predominant oxidative species, along with the minor contribution of SO 4 • ‾ and 1 O 2 to the degradation process. Mass Spectrometry analysis indicated that the CIP underwent degradation via sequential hydroxylation, oxidation, side-chain cleavage, ring-opening, and mineralisation processes. The catalyst maintained 96.3% degradation efficiency after five cycles with minimal metal leaching, indicating exceptional stability and reusability. This study emphasises MOF-on-MOF interfacial engineering as a proficient approach for developing effective PMS activators for the remediation of pharmaceutical wastewater.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Ming Zhang,Jiacheng Li,Lijun Wu,Tian Liang,Jian Liu,Lu Wang
Acetamiprid (ACE) can accumulate in the environment through the food chain, potentially endanger human health. In this experiment, zinc‑cobalt bimetallic metal organic framework (Zn/Co MOF) was synthesized and used to activate peroxymonosulfate (PMS) for the removal of ACE from water. The degradation efficiency of ACE could achieve approximately 96.93% after 90 min. Through the synergistic effect of Zn and Co bimetallic sites, ACE was degraded via a Fenton-like reaction, while reactive oxygen species (SO 4 ·- , ·OH, O 2 ·- , and 1 O 2 ) participated in the process. The high catalytic activity of Zn/Co MOF led to the degradation of ACE through the formation of a series of low-toxicity intermediates, and partial mineralization to CO 2 and H 2 O. In addition, Zn/Co MOF remained effective under broad pH conditions (pH 5–11) and temperatures (5–45 °C). This system had excellent degradation effects in actual water, with degradation rates of 95.42% and 95.18% after 90 min in the Pai River and Liren Lake, respectively. With its high catalytic performance, the Zn/Co MOF is expected to become an ideal catalyst that could be used to remove pesticide residues in water.
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高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2021
·Vol. 28
·期 46
·65487-65498
·
IF 4.223
Zhou
Jiacheng,Shen Qicheng,Yang Jie,Tariq Muhammad,Sun Wei,Cao Limei,Yang Ji
Co 3 O 4 is a promising Hg 0 removal catalyst for industrial application. Operating temperature and low sulfur resistance are two of the main problems that hinder its industrial application in Hg 0 removal. Herein, a metal-organic framework (Co-BDC) was introduced as a sacrificial template to obtain the catalyst nano-sized Co 3 O 4 @C by calcination. Part of the organic ligands is carbonized during the calcination. Carbon wrapped Co 3 O 4 and reduced metal agglomeration. The optimal Hg 0 removal temperature of the existing cobalt oxide catalysts was always around 150 °C, but H 2 -TPR showed that the oxygen atoms on the Co 3 O 4 @C were more active than those on Co 3 O 4 , causing the Hg 0 removal temperature window of Co 3 O 4 @C to shift to lower temperatures. The Hg 0 removal efficiency of Co 3 O 4 @C could reach almost 100% even at 25 °C. In the meanwhile, Co 3 O 4 @C also showed a strong SO 2 resistance at ambient temperature. Experimental results and characterization proved that SO 2 did not compete with Hg 0 on the surface of Co 3 O 4 at low temperatures. On the contrary, it participated in the oxidation of Hg 0 . This is a great improvement for Co 3 O 4 catalyst in Hg 0 removal. It reduces the restrictions on the application of Co 3 O 4 in Hg 0 removal. Co 3 O 4 @C shows considerable potential as an Hg 0 removal catalyst.
研究领域:
环境科学
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催化化学
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PubMed
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2026
·
IF 4.1
Wang Ying,Yan Yiting,Zhang Jun,Yang Lin,Liu Fanghua,Tan Chao,Jiang Xue
p-Benzoquinone (PBQ), as a key toxic derivative of benzene, is widely present in industrial wastewater and the production and manufacturing of daily chemicals. Long-term exposure poses a serious health threat, making the development of rapid and sensitive on-site detection technologies highly significant. Electrochemical methods, due to their simple operation, high sensitivity, and ease of miniaturization, are an ideal approach for detecting PBQ. Co-MOF-74 is extensively used in the electrochemical field because of its structural stability, tunable metal nodes, and large surface area, but its low conductivity limits further applications. In this study, Co-MOF-74 was rapidly synthesized using dielectric barrier discharge (DBD) microplasma technology, and then the large π-conjugated organic ligand HATP was introduced for ligand engineering to successfully prepare Co-MOF-74-HATP. This synthesis strategy is not only efficient, but also the introduction of HATP effectively regulates the material’s electronic structure, significantly enhancing its conductivity and electrocatalytic activity. The electrochemical sensor employs chronoamperometric detection at −0.15 V (vs. Ag/AgCl) and exhibits excellent performance for PBQ, featuring two wide linear ranges (17–1602 µM and 1602–5602 µM) with corresponding sensitivities of 1440 µA·mM −1 ·cm −2 and 497.8 µA·mM −1 ·cm −2 , a low limit of detection (LOD) of 3.43 µM ( S / N = 3), and good reproducibility (RSD < 3.0%). It was successfully applied to the detection of PBQ in actual water samples with recoveries ranging from 90.5% to 102.32%. This work expands the synthesis of ligand-functionalized MOFs through DBD microplasma technology and applies them to the electrochemical detection of PBQ in water samples. Graphical abstract
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Kao Chen,Huailiang Li,Jingyi Chen,Annan Wang,Weiwei Zhu
Highly recoverable and stable heterogeneous catalysts are critical for peroxymonosulfate (PMS)-based advanced oxidation processes (AOPs). This work addresses the difficult separation and metal leaching issues of conventional powdered metal–organic frameworks (MOFs) by constructing a self-supporting Co-MOF@chitosan (Co-MOF@CS) composite membrane. Through in situ reconstruction during PMS activation, the low-crystallinity Co-MOF precursor transforms into an amorphous CoO(OH) nanolayer on the membrane surface. The reconstructed active phase anchors firmly on the porous CS substrate, thereby enabling efficient PMS activation by facilitating rapid electron transfer and providing abundant surface active sites. The Co-MOF@CS membrane exhibited excellent catalytic performance, degrading > 96% of the methylene blue (MB) and ∼70% of sulfadiazine (SDZ) after five consecutive cycles. Notably, the degradation efficiency increased slightly after multiple cycles due to continuous exposure of CoO(OH) active sites. The Co species effectively anchored onto the CS matrix through strong coordination, contributing to extremely low cobalt leaching (0.05 to 0.06 mg/L) and outstanding long-term reusability. Radical quenching and electron paramagnetic resonance (EPR) analyses revealed superoxide radicals (O 2 •− ) and singlet oxygen ( 1 O 2 ) as the dominant reactive species. This work elucidates the dynamic self-activation of low-crystallinity Co-MOFs in AOPs while providing a green and sustainable solution to secondary pollution caused by powdered nanocatalysts during water treatment.
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高影响因子
MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 9
·1-10
·
IF 6.408
Wang Yuexin,Chen Rui,Shen Bo,Li Cai,Chen Junman,Wang Yanshuang,Tian Shen,Li Xuemiao,Luo Nini,Liu Rui,Ding Shijia,Zhu Chuanlong,Xia Qianfeng
A multifunctional catalytic nanomaterial (Co-MOF@AuNP@ABEI) composed of cobalt-doped metal–organic frameworks (Co-MOF), gold nanoparticles (AuNP), and N -(4-aminobutyl)- N -(ethylisoluminol) (ABEI) is reported. Co-MOF@AuNP@ABEI exhibits high synergistic and zero-distance catalytic properties, which are beneficial to the improvement of the detection sensitivity of an electrochemiluminescent (ECL) biosensor. After coupling with the ECL system and 3D magnetic walking nanomachine amplification strategy, the Co-MOF@AuNP@ABEI can achieve an ultrasensitive ECL assay of Burkholderia pseudomallei with the limit of detection (LOD) of 60.3 aM, which is 2 and 4 orders of magnitude lower than individual ECL system without the nanomachine (4.97 fM) and individual walking nanomachine (340 fM), and superior to the pathogenic bacteria analyses in the previous report. Moreover, the LOD of the proposed ECL detection system for the determination of B. pseudomallei in serum sample was as low as 9.0 CFU mL −1 . The relative standard deviations (RSD) of ECL intensity for the detection of five B. pseudomallei -spiked serum samples were 4.02%, 0.84%, 0.84%, 1.55%, and 0.21%, respectively. The recoveries of the ECL biosensor for the detection of B. pseudomallei DNA-spiked serum samples were 93.63 ~ 107.83%. Therefore, this work demonstrated that the developed multifunctional catalytic nanomaterial with synergistic and zero-distance catalytic properties can be used as excellent ECL signal reporter to improve the detection sensitivity of ECL biosensor. Graphical abstract
研究领域:
生物传感器
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分析化学
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纳米技术
·
微生物学
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PubMed
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2022
·Vol. 169
·期 11
·117504
·
IF 4.386
Aiqin Luo,Yanhui Cai,Miao Liu,Shanshan Tang,Ziyu Zhu,Ruilin Haotian,Bingteng Xie,Yue Yi,Zikai Hao,Axin Liang
A cobalt metal-organic framework (Co MOF)-ionic liquid (IL) nanocomposite comprising the base matrix of the electrode was developed with electropolymerized molecularly imprinted polymer (MIP) consisting of o-phenylenediamine (oPD) to detect carcinoembryonic antigen (CEA), a biomarker of breast cancer. Firstly, Co MOF was synthesized using hydrothermal synthesis, which was used as an electrically conductive skeleton and functionalized with an IL. Then, CEA was employed as a template in the electropolymerization of oPD-imprinted films on the surface of screen-printed carbon electrode (SPCE). Finally, the template protein was removed to form a molecularly imprinted film capable of qualitatively and quantitatively signaling CEA. Under optimized conditions, the sensor for CEA exhibits a wide detection range of 1.0 × 10−4−10 ng·ml−1 (0.32 V vs Ag/AgCl) with a limit of detection (LOD) and limit of quantification (LOQ) of 0.024 pg·ml−1 and 0.082 pg·ml−1, respectively. Besides, other parameters including the selectivity, reproducibility (RSD 2.2%), and recovery rate (92.16%–103.35%) are all satisfactory. The proposed strategy provides a new route for the development of rapid breast cancer diagnostic tools.
研究领域:
医学
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材料科学
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生物化学
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高影响因子
Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 43
·25120-25131
·
IF 10.733
Taotao Sun,Liguo Yue,Ning Wu,Mengni Xu,Wenhu Yang,Hao Guo,Wu Yang
High-performance electrode materials were obtained by isomorphism and intercalation methods, resulting in multi-types of redox reaction centers and a bridge for charge transfer. Some of the Co ions (clusters) were replaced by Ni ions with little difference in radius and different types of redox reactions were constructed. At the same time, the introduction of 2-methylbenzimidazole in the intercalation of two-dimensional (2D) Ni/Co-MOF accelerated the charge transfer. The synthetic composite electrode material exhibited high specific capacitance of 2422.7 F g−1 at a current density of 1.0 A g−1 in three systems and cycle retention of 86% after 3000 cycles. An asymmetric supercapacitor device assembled with the composite material and activated carbon exhibited a maximum energy density of 82.8 W h kg−1 at a power density of 700 W kg−1, showing that the composite has good potential application value.
研究领域:
材料科学
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电化学
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能源存储
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高影响因子
危险品化学品经营许可证（带存储）