Journal of Materials Chemistry C
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2023
·Vol. 11
·期 33
·11204-11212
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IF 6.4
Zhimin Mao,Su-Yun Zhang,Duo Zhao,Xiaoliang Weng,Chenxu Kang,Hui Fang,Yu-Jia Zeng
The development of metal–organic framework (MOF) materials with multifunctionalities has boosted their prospects in the fields of spintronics and optoelectronics. However, incorporating magnetic and optoelectronic properties in MOF materials remains challenging. Herein, the in situ synthesis of Cu-MOF-74, a typical one-dimensional linear magnet, is systematically investigated, which shows ferromagnetic and antiferromagnetic interactions along the axial chain direction, and overall tilted antiferromagnetism at low temperatures. In particular, the introduction of SnS:Co quantum dots (QDs) enhances the antiferromagnetic coupling, which increases the phase transition temperature of the MOF from 7.8 K to 275 K at 1000 Oe. In addition, it is demonstrated that Cu-MOF-74 possesses both magnetic and optoelectronic properties. It is found that the responsivity and detectivity of the Cu-MOF-74 photodetector are both significantly improved by the SnS:Co QDs. This research provides promising methods for concurrent improvement of the magnetic and optoelectronic properties of MOF materials, advancing in-depth research on the MOF film as a new type of semiconductor for spintronic and optoelectronic devices.
研究领域:
材料科学
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自旋电子学
·
光学
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DOI
高影响因子
Chemical Engineering and Processing-Process Intensification
·
2024
·
IF 3.8
Xiaocui Zhang,Xiaoxin Wang,Jun Gao,Jiangcheng Li,Xiangfeng Liang,Qinghui Shou
The global need for bromide ions (Br - ) has driven the research focus to extract them from various liquid ores. Highly efficient and selective adsorbent is still lacking. MOF with large surface area and structural stability are promising candidate for Br - extraction. In this work, we prepared Cu-MOF-74 nanocrystals. Abundant hydroxyl groups on them spontaneously reduced Ag + to Ag 0 nanoparticles, resulting in the fabrication of Ag 0 doped Cu-MOF-74. The crystalline structure retains after the doping of Ag 0 when the mass ratio of silver nitrate to MOF is <0.5. The crystals are distorted or even damaged when the ratio is higher than 1.0 according to XRD and DFT calculation. The adsorption capacity of Ag 3 -Cu-MOF-74 is 232.92 mg g -1 , surpassing the capacities of most previously documented adsorbents. The desorption of Br - and thereafter the recovery of adsorbent could be realized through light driven decomposition of AgBr. This MOF adsorbent shows promising application potential in Br - recovery from various liquid ores.
研究领域:
材料科学
·
环境科学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2022
·
IF 9.136
Hongai Zheng,Meilin Zhu,Derui Wang,Yao Zhou,Xin Sun,Shuangyan Jiang,Mengyao Li,Cunzheng Xiao,Daquan Zhang,Lizhi Zhang
Membrane fouling is one of the main impediments that limit the wide application of Polyvinylidene fluoride (PVDF) membrane. In this study, for the first time, we incorporated the cellulose nanocrystal (CNCs) onto Cu-MOF-74 by physical stirring and then coated the composites on the PVDF membrane to ameliorate the antifouling performance. The PVDF membrane with the addition of CNC/Cu-MOF-74 composite showed enhanced hydrophilicity compared with the pristine membrane, which significantly promoted the permeability and antifouling performance. The Bovine serum albumin (BSA) multiple-cycle antifouling results revealed that the flux recovery ratio (FRR) value (76.9 %) was much higher than that of the pristine membrane (60.8 %). The enhancement of recovery flux was correlated with the increased electrostatic repulsion and hydrophilicity of the modified membrane according to the contact angle test and Zeta-potential measurement. Meanwhile, the CNC/Cu-MOF-74 modified membrane showed improved antibacterial efficiency (96.3 % at 4 h) due to the predominant antibacterial efficacy of Cu-MOF-74. The efficiently antibacterial achievement of modified membrane was attributed to the release of Cu 2+ and the generation of •OH. This study proposed a novel modified membrane with excellent antifouling properties and provided new insights into the fabrication of antifouling membranes with outstanding performance.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
·
IF 5.518
Hongai Zheng,Yao Zhou,Derui Wang,Meilin Zhu,Xin Sun,Shuangyan Jiang,Yankun Fan,Daquan Zhang,Lizhi Zhang
Catalytic membrane reactors (CMR) based on the sulfate-based advanced oxidation processes (SR-AOPs) have exhibited fantastic applications prospects in water treatment. We synthesized Cu-MOF-74 by an environmentally friendly and facile method, then used it as PVDF (polyvinylidene fluoride) membrane surface modification layer. The results presented that Cu-MOF-74 can significantly improve anti-fouling ability of PVDF membrane (60.9% and 64.1% anti-adsorption of dye and protein). The modified membranes exhibited relatively low flux loss. Simultaneously the modified membrane catalyzed peroxymonosulfate (PMS) to achieve 97.1% degradation efficiency of Rhodamine B (RhB) within 60 min and 90.2% dye penetration recovery within 30 min. Cu-MOF-74 exhibited greater catalytic activity than homogeneous Cu (II) and showed a wide range of pH adaptation. Finally, XPS and ESR proved that it was the redox of Cu (II)/Cu (I) in the Cu-MOF-74 structure making PMS mainly produce SO 4 - • and •OH to oxidize pollutant molecules. The modus proposed in this study may provide a more promising strategy for the preparation of high-efficiency catalytic membranes and their practical applications in wastewater treatment processes .
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2022
·
IF 6.959
Zhuo Zhang,Liying Tian,Hongyu Zhang,Hai Xu,Panpan Dong,Yayun Zhang,Donghui Long
Solid-state lithium batteries using solid composite polymer electrolytes (CPEs) with great thermal and mechanical stabilities are believed to be the next-generation advanced electrochemical devices, but they suffer from low ionic conductivity at room temperature and a poor interface between the electrode and the electrolyte. Herein, we present a poly(ethylene oxide) (PEO)-based CPE allowing rapid Li+ migration enabled by coordinating the anions on the exposed metal sites of a metal–organic framework (MOF). The CPE contains MOF-74 fillers, a PEO matrix, and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). Owing to the strong anchoring effect of MOF-74 fillers on TFSI– verified by calculations and measurements, the CPE exhibits a high ionic conductivity (5.5 × 10–5 S·cm–1 at 30 °C), a wide electrochemical stability (4.8 V), and an improved Li+ transference number (0.36). Besides, the adjusted local current density promotes the interfacial stability against the Li anode in a Li symmetric battery, which performed well at a current density of both 0.2 and 0.4 mA cm–2. With these advantages, the all-solid-sate LiFePO4 battery fabricated exhibited stable cycling performances (161 mA h g–1 and maintained 152 mA h g–1 after 300 cycles at 0.5 C). This strategy gives fresh reference to the utilization of different MOFs and polymers in building high-performance solid-state lithium batteries.
研究领域:
材料科学
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能源存储与转换
✓ 已验证
DOI
高影响因子
APPLIED ORGANOMETALLIC CHEMISTRY
·
2024
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IF 3.7
Lifei Liu,Xiaoqing Yang,Pengfei Li,Luyuan Zhang,Yali Luo,Meng Yan,Yang Deng,Xia An,Jianling Zhang,Xu Wu
The construction of metal–organic frameworks (MOFs) with desirable structures for high-performance photocatalysis is attractive but remains challenging. Here, a hierarchically meso- and microporous sc Cu-MOF-74 was synthesized in supercritical CO 2 ( sc CO 2 )/methanol solution. Compared with the conventional microporous Cu-MOF-74, the meso- and microporous sc Cu-MOF-74 has more exposed and accessible Lewis acid sites derived from the missing-linker defects. The unique structure endows sc Cu-MOF-74 with superior molecular accessibility, enhanced separation, and transfer efficiency of photogenerated charges. High catalytic activity and reusability can be achieved in photo-oxidative coupling of amines, reaching a maximum N-benzylbenzaldimine yield rate of 4.80 mmol g −1 h −1 under mild conditions, that is, air atmosphere and room temperature. This study provides a new idea for improving the intrinsic photocatalytic activities of MOFs.
研究领域:
材料科学
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化学工程
·
催化
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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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.
研究领域:
生物技术
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材料科学
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分离工程
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产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2022
·
IF 4.177
Yun Ling,Ya-ru Chu,Feng Gao,Qing-yun Feng,Hui-qi Xie,Yong Shao,Qing-xiang Wang
The unique chemical and physical properties of metal–organic frameworks (MOFs) endow them with promising applications in the electrochemical sensing field. Herein, a novel label-free electrochemical sensing strategy for cardiac troponin I (cTnI) has been constructed on the basis of immunoaffinity-induced depression of the electrochemical signal of Cu-MOF-74. The electrochemical assay shows that the immunoaffinity reaction between cTnI and anti-cTnI on the electrode surface can effectively inhibit the electrochemical signal of electrode-confined Cu-MOF-74, suggesting that the Cu-MOF-74-based interface may find application in the label-free analysis of cTnI. Thus, Cu-MOF-74 acts as a bifunctional material in this strategy, namely, the immobilization matrix of probe molecules and the signal source of the sensing analysis. In addition, the reason for the electrochemical signal depression of Cu-MOF-74 induced by immunoaffinity reaction is attributed to the increase in the insulation layer and the blocking of the electrolyte diffusion from the bulk solution to the electrode surface. In this strategy, the analytical range of cTnI is from 0.01 pg mL–1 to 1.0 ng mL–1 and the detection limit is 4.5 fg mL–1. The Cu-MOF-74-based sensing interface is also reliable for cTnI analysis in real serum samples, showing that the biosensor has promising application in point-of-care testing (POCT) of myocardial injury-related diseases.
研究领域:
生物传感器
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医学诊断
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材料科学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Nana Li,Liangqiang Chen,Wanqiu Huang,Mengdi Hao,Huabin Tu,Hao Shen,Fan Yang,Shaoning Yu
As one of the most important industrial enzymes, α-amylase is widely used in food processing, such as starch sugar and fermentation, bringing high added value to industry of more than a trillion dollars. We developed a multi-enzyme system (Glu&Gox@Cu-MOF-74) prepared by embedding α-glucosidase (Glu) and glucose oxidase (Gox) into the biomimetic metal-organic framework Cu-MOF-74 using in situ encapsulation within 15 min at room temperature for efficient and sensitive detection of α-amylase activity. Benefitting from the remarkable peroxidase-mimicking property and rigid skeleton of Cu-MOF-74, the biocatalytic platform exhibited excellent cascade activity and tolerance in various extremely harsh environments compared to natural enzymes. On this basis, a cascade biocatalytic platform was constructed for the detection of α-amylase activity with wide linear range (5–100 U/L) and low limit of detection (1.45 U/L). The colorimetric cascade scheme is important for the sensitive and selective determination of α-amylase in complex fermentation samples, and the detection time is short (∼0.5 h). This work provides new ideas for the detection of α-amylase based on the cascade amplification method.
研究领域:
生物化学
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生物技术
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分析化学
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产品关联
DOI
PubMed
高影响因子
MARINE POLLUTION BULLETIN
·
2023
·
IF 5.8
Liuqin Zhang,Huali Li,Xiaohu Zhang,Qiuping Li,Guangyu Zhu,Fa-Qian Liu
We developed a marine coating consisting of Cu-MOF-74, multi-walled carbon nanotube containing carboxyl groups (MWCNT-COOH) and self-healing polymers, which simultaneously possesses self-healing and anti-biofouling properties. Cu-MOF-74 can stably release Cu 2+ by virtue of the coordination dissociative mechanism. Studies have proved that MWCNT can inhibit the growth of bacteria, so adding the MWCNT can help to reduce the amount of the copper ions and ensure the antibacterial effect of the coating. In addition, the cross-linked network and abundant -COOH provided by the polymers and MWCNT-COOH further prevent the loss of copper ions. Moreover, the coating we prepared has good performance of self-healing at room temperature or slightly heated because the polymers possess abundant non-covalent hydrogen bonds . Finally, the coating not only has superior antibacterial property , but also effectively prevents the adhesion of macrofouling organism. Therefore, the coating has a longer service life and its environmental friendliness has also been improved.
研究领域:
材料科学
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海洋工程
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化学工程
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环境科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2021
·
IF 6.165
Hua Qiang,Mingzhu Xia,Fengyun Wang,Wu Lei,Xin Lu,Yue Ni
Due to the lack of rapid and efficient detection methods for the determination of trace organic phosphonate concentrations in the natural aqueous system, little is known about their impact on the ecosystem. Amino trimethylene phosphonic acid (ATMP) is an organic phosphonate that has been widely used in many fields. In the present work, the copper-based organic framework material (Cu-MOF-74) for the specific detection of amino trimethylene phosphonic acid (ATMP) in aqueous solution was prepared by hydrothermal synthesis using 2,5-dihydroxyterephthalic acid (DHTP) as raw material and copper nitrate trihydrate as metal source. The synthesized material can be used as a “turn-on” fluorescent sensor for the specific sensing of ATMP, the fluorescence intensity of Cu-MOF-74 can be enhanced 24.2 times by ATMP (90 μΜ), the emission wavelength of the fluorescence emission spectrum of the system was blue-shifted, and the detection limit (LOD) of ATMP was 0.844 μΜ. Moreover, the mechanism of ATMP greatly increasing the fluorescence intensity of Cu-MOF-74 was investigated by experimental and theoretical calculations of quantum chemistry. The experimental results showed that ATMP was involved in the coordination of open metal sites in Cu-MOF-74. Multiwfn wavefunction analysis results demonstrated that the charge transfer from the benzene ring and hydroxyl groups of the ligand to the metal (LMCT) occurred during the electron excitation of Cu-MOF-74, but after adding ATMP, the coordination of ATMP with copper led to the interruption and reduction of the energy transfer and electron transfer from ligand DHTP to Cu 2+ , and the fluorescence intensity of Cu-MOF-74 was improved. The Cu-MOF-74 fluorescent probe exhibited excellent anti-interference ability, high selectivity, good fluorescence intensity stability in the short term, so it can be used as a reliable fluorescent probe for the highly specific detection of low concentration ATMP, the revealed microscopic mechanism of Cu-MOF-74 fluorescent probe to ATMP from the atomic level can provide a theoretical basis for the research of new fluorescence detectors.
研究领域:
分析化学
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环境科学
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材料科学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jiaxin Wu,Yuhan Ma,Haichang Zhang,Haonan Xie,Jin Hu,Chunsheng Shi,Biao Chen,Chunnian He,Naiqin Zhao
Poly(ethylene oxide) (PEO)-based electrolytes have been extensively studied for all-solid-state lithium-metal batteries due to their excellent film-forming capabilities and low cost. However, the limited ionic conductivity and poor mechanical strength of the PEO-based electrolytes cannot prevent the growth of undesirable lithium dendrites, leading to the failure of batteries. Metal–organic frameworks (MOFs) are functional materials with a periodic porous structure that can improve the electrochemical performance of PEO-based electrolytes. However, the enhancement effect of MOFs with different metal centers and the interaction mechanism with PEO remain unclear. Herein, MOF-74s with Cu or Ni centers are prepared and used as fillers of PEO-based electrolytes. Adding 15 wt % of Cu-MOF-74 to the PEO-based electrolyte (15%Cu-MOF/P–Li) effectively improves the ionic conductivity, lithium transference number, and mechanical strength of the PEO-based electrolyte simultaneously. Furthermore, the ordered pore channels of Cu-MOF-74 provide uniform Li-ion transport pathways, facilitating homogeneous Li+ deposition. As a result, the lithium symmetric cell with 15%Cu-MOF/P–Li shows stable cycles for 1080 h at 0.1 mA cm–2 and 0.1 mAh cm–2, and the Li | 15% Cu-MOF/P–Li | LFP full cell exhibits a long cycle life up to 200 cycles at 60 °C and 0.5 C, with a capacity retention rate of 89.7%.
研究领域:
材料科学
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电化学
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能源存储
✓ 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）