Science of Advanced Materials
·
2023
·Vol. 15
·期 6
·754-760
·
IF 0.9
Chen Lin,Zhang Hang,Fouad Hassan,Akhtar M. S.,Wang Zhihong
This study presents a straightforward hydrothermal synthesis technique for modifying the crystal size and shape of MIL-53(Al) via the use of a mixed solvent solution consisting of water and DMF. Without the use of coordination inhibitors or surfactants, a sequence of nanosized MIL-53(Al)
crystals was efficiently synthesized. The lowest crystal size we were able to achieve in this work was 100 nm, but present technologies are not suited to creating nanoscale crystals of this size. Large crystallinity and yield were attained, and the samples’ very large specific surface
areas expanded the usefulness of this MOF material for gas adsorption and storage. X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, nitrogen gas adsorption/desorption, and infrared spectroscopy were all used to characterize the samples. Finally, the effect of moisture
concentration on crystal size and shape was investigated.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
RSC Advances
·
2015
·Vol. 5
·期 89
·73068-73076
·
IF 3.84
Lifang Zhu,Hongwei Yu,Huijuan Zhang,Jiangnan Shen,Lixin Xue,Congjie Gao,Bart van der Bruggen
Aromatic poly(m-phenyleneisophthalamide) (PMIA) and the metal-organic framework (MOF) MIL-53(Al) were employed as the polymer matrix and additive, respectively, to develop mixed matrix membranes (MMMs) via non-solvent induced phase separation for potential application in organic solvent nanofiltration. The prepared membranes were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and water contact angle measurements. The membrane water permeance enhanced when MIL-53(Al) was incorporated into the membrane structure while the rejection had no significant change. The optimum MMM (with 0.5 wt% MOF concentration) passes mono and bivalent inorganic salts but rejects larger charged organic molecules and has a mean effective pore size of 0.7 nm. The influence of organic solvents on MMM performance was also investigated and the result shows that the performance shifts towards a lower pure water permeance and a higher rejection after exposure to organic solvents (ethyl acetate or methanol). The membrane performance in organic solvent nanofiltration was evaluated on the basis of the permeance and rejection of brilliant blue G in ethanol, and the result showed that the permeance of MMMs significantly increased (by 289%) while the rejection slightly reduced by 4% in contrast to the pure membrane.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
CRYSTENGCOMM
·
2012
·Vol. 14
·期 17
·5487-5492
·
IF 3.842
Feng Zhang,Xiaoqin Zou,Fuxing Sun,Hao Ren,Yuan Jiang,Guangshan Zhu
A thin film of MIL-53(Al) on the activated Al slice has been prepared successfully. The crystals in the films exhibit high phase purity and a preferential orientation with straight channel network (or (h0l) planes) of the crystals parallel to the support surface, which are studied by X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The loading of organic (2-(2-hydroxyphenyl)-pyridine) (PP) fluorescent molecules in the film has been accomplished. The behaviours of the fluorescent molecules assembled in the pores of the oriented crystals are probed by Fourier transform infrared (FT-IR) and fluorescence spectroscopies.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
·
药物递送
·
表面科学
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DOI
高影响因子
IONICS
·
2020
·Vol. 26
·期 4
·1787-1795
·
IF 2.394
Ge Zhi,Li Jie,Liu Jin
A flexible PEO-NaCF 3 SO 3 -MIL-53(Al) solid electrolyte is fabricated for all-solid-state sodium-sulfur batteries (ASSBs). When the mole ratio of EO (ethylene oxide of PEO):Na (sodium ion of NaCF 3 SO 3 ) is 20 and MIL-53(Al) is 3.24 wt%, high ionic conductivities of 6.87 × 10 −5 S cm −1 at 60 °C and 6.52 × 10 −4 S cm −1 at 100 °C are achieved. And the sodium ion transference number is significantly increased to 0.40 from 0.13 compared to the PEO-NaCF 3 SO 3 solid electrolyte without MIL-53(Al). When it is assembled to ASSBs, the batteries obtain high capacity retention and reversible current-rate capability. At 0.1 C and 60 °C, the solid-state battery delivers the first discharge capacity of 897.7 mAh g −1 and 674.9 mAh g −1 after 50 cycles with a coulombic efficiency near 100%. The enhanced electrochemical performances of the solid electrolyte, as well as ASSBs, are benefited from MIL-53(Al) filler.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2021
·
IF 2.495
Ying-yue Qin,Qiao-ying Wang,Jin-Long Ge,Fang Wu
Amino-MIL-53(Al) (NH 2 -MIL-53(Al)) nanocrystals were successfully obtained through microwave ultrasound-assisted method. The structure and morphology of the as-synthesized NH 2 -MIL-53(Al) nanocrystals were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and N 2 adsorption–desorption isotherms, respectively. Upon excitation at 388 nm, the as-synthesized NH 2 -MIL-53(Al) nanocrystals show strong emission peak at 454 nm in n-octane solution at room temperature. Meanwhile, the fluorescence explorations revealed that NH 2 -MIL-53(Al) can selectively detect organosulfur compounds, including thiophene and benzothiophene through quenching effect in model fuel, with high quenching constant and low detection limit. This work presents a facile platform for the detection of organosulfur compounds in model fuel.
研究领域:
材料科学
·
化学
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DOI
高影响因子
ANALYST
·
2020
·Vol. 146
·期 4
·1295-1302
·
IF 3.978
Defen Feng,Fucun Wei,Yeyu Wu,Xuecai Tan,Fang Li,Yongkuai Lu,Gaochao Fan,Heyou Han
An ultrasensitive electrochemiluminescence (ECL) biosensor was developed based on MIL-53(Al)@CdS QDs and SiO2@AuNPs for trichlorfon detection. Metal–organic frameworks (MOFs) were used as a loading platform that provided a large surface area to load targets and modified materials onto the electrode. At the same time, SiO2@AuNPs loaded plenty of AuNPs which effectively increased the ECL resonance energy transfer between the CdS QDs, so that the ECL signal was strongly quenched and resulted in an amplified response. In the range of 10−11–10−4 M, the ECL response showed a linear relationship with the concentration (logarithm) of trichlorfon, and the detection limit was 5.1 × 10−12 M (S/N = 3). When the biosensor was applied to detect trichlorfon in lettuce, broccoli, cucumber, and chives, the recoveries obtained from the spiked samples were 97%–105%, 102%–104%, 100%–104%, and 98%–104%, respectively. Thus, this novel ECL biosensor has potential applications for the analysis of trichlorfon in food samples.
研究领域:
分析化学
·
环境科学
·
材料科学
·
食品安全
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DOI
PubMed
高影响因子
TURKISH JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 4
·1281-1290
·
IF 1.151
WANG JI,WANG QINGYIN,WANG GONGYING
Poly(ethylene terephthalate) (PET) is one of the world's five major engineering plastics and is widely used in various fields. At present, the main catalysts used in the synthesis of PET are antimony, titanium, and aluminum metal compounds. Among them, antimony-based catalysts are poisonous and the titanium-based catalyst products are relatively yellow in hue. The aluminum-based catalyst has the advantages of low price and environmental friendliness, but current research shows that the organoaluminum catalyst has the problem of hydrolysis, and MIL-53 (Al) has good stability and will not affect the environment, so we add a catalyst before the esterification reaction, and uses thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscope (SEM), and N2 low-temperature physical adsorption characterizes the thermal stability and structure of MIL-53(Al). At the same time, the effects of different content, polycondensation time, before and after activation and polycondensation temperature on the properties of PET were investigated. The research results show that when the molar content of catalyst is 0.05% and the reaction temperature is 280 oC for 150 min, the product obtained is relatively excellent. The catalytic activity has almost no effect before and after activation, indicating that the polycondensation reaction is carried out on the surface of the catalyst. Therefore, MIL-53 (Al) has great potential in PET industrial catalysis.
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MEASUREMENT SCIENCE and TECHNOLOGY
·
2022
·Vol. 34
·期 2
·025106
·
IF 2.398
Qianchun Zhang,Qin Zhou,Yun Wu,Yanxin Li,Fengling Tian,Shan Tang,Li Jiang
In this study, MIL-53(Al) and Sb2SnO5 were synthesized by hydrothermal and precipitation methods, respectively. The doped MIL-53(Al)/Sb2SnO5 showed excellent catalytic properties, specifically for selectivity and sensitivity for isobutanol (IBN). To assess the catalytic properties of MIL-53(Al)/Sb2SnO5, an IBN gas sensor based on cataluminescence of MIL-53(Al)/Sb2SnO5 was developed, and it demonstrated detection of IBN with high sensitivity, high specificity, fast detection, and good stability. The signal response and recovery time of IBN gas sensor were 0.5 s and 6 s, respectively, and a good linear relation was 0.050–2.5 μg ml−1 (R2 = 0.9956) with a low detection limit of 0.015 μg ml−1. Further, the IBN sensor applied in the detection of real samples had satisfactory recoveries (90.0%–108%) with relative standard deviations of 3.2%–6.7%. The developed sensor based on MIL-53(Al)/Sb2SnO5 has great prospects for the practical detection of IBN gas in the fields of environmental analysis, safety monitoring, etc.
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 23
·11158-11165
·
IF 3.925
Jipeng Li,Yanzhi Sun,Yongmei Chen,Yang Tang,Junqing Pan,Pingyu Wan
In the present study, the preparation of a new MOF material His-MIL-53(Al) and its performance in the adsorption of Pb(II) from aqueous solution were investigated. The original material MIL-53(Al) was directly grafted with histidine to obtain the modified MOF material His-MIL-53(Al). The results show that His-MIL-53(Al) has excellent adsorption performance for Pb(II), and the adsorption process is in accordance with the pseudo first-order kinetics and the Langmuir adsorption model, with a maximum adsorption capacity of 50.13 mg g−1, which is much larger than the adsorption capacity of the original material MIL-53(Al). The experimental results also show that the prepared material has good recoverability. Our work demonstrates the applications of His-MIL-53(Al) as a promising material in the adsorption of heavy metals.
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产品关联
DOI
高影响因子
MOLECULES
·
2024
·
IF 4.2
Qianchun Zhang,Xixi Long,Shan Tang,Li Jiang,Zhaoru Ban,Yanju Chen,Runkun Zhang
A simple, rapid, and reliable method for detecting harmful gases is urgently required in environmental security fields. In this study, a highly effective cataluminescence sensor based on SiO 2 /MIL-53(Al) composites was developed to detect trace isobutylaldehyde. The sensor was designed using isobutylaldehyde to generate an interesting cataluminescence phenomenon in SiO 2 /MIL-53(Al). Under optimized conditions, a positive linear relationship was observed between the signal intensity of the cataluminescence and isobutylaldehyde concentration. The isobutylaldehyde concentration range of 1.55–310 ppm responded well to the sensing test, with an excellent correlation coefficient of 0.9996. The minimum detectable concentration signal-to-noise ratio ( S/N = 3) was found to be 0.49 ppm. In addition, the sensor was effectively utilized for analyzing trace isobutylaldehyde; the analysis resulted in recoveries ranging from 83.4% to 105%, with relative standard deviations ( RSDs ) of 4.8% to 9.4%. Furthermore, the mechanism of cataluminescence between SiO 2 /MIL-53(Al) and isobutylaldehyde was explored using GC–MS analysis and density functional theory. We expect that this cataluminescence methodology will provide an approach for the environmental monitoring of isobutylaldehyde.
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产品关联
DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2022
·
IF 10.508
Dequan Jiang,Ting Wen,Yanzhen Guo,Jie Liang,Zimin Jiang,Chen Li,Ke Liu,Wenge Yang,Yonggang Wang
Anomalous compression behaviors such as negative linear compressibility (NLC) and negative area compressibility (NAC) are emerging functionalities essential for utilities under extreme conditions. Metal–organic frameworks (MOFs) present a large family of NLC/NAC materials under the well-recognized “wine-rack” mechanism. Nevertheless, the working pressure of MOFs is limited to typically no more than 3 GPa. Herein, we report the observation of a rare reentrant NLC behavior of MIL-53(Al) over an ultrawide pressure region up to 41.6 GPa. MIL-53(Al) with the classic wine-rack topology first exhibits an NLC behavior along the c-axis in the pressure region of 0–2.7 GPa, followed by a normal compression process between 2.7 and 12.9 GPa. After that, it is surprising to find that the reentrant NLC property remains at a record-high pressure (>40 GPa) among the previously reported MOFs. The mechanisms of the distinct compression behaviors of MIL-53(Al) in the three stages are studied by combining the X-ray diffraction analyses, Raman spectra, and DFT calculation. Particularly, the photoluminescence of Cr3+ is used as a unique probe for the subtle changes of the local coordination environments of Al3+ under compression. Both the absorption spectra and photoluminescence of Cr3+-doped MIL-53(Al) not only verify the three-stage compression processes but also reveal a hidden structural/electrical phase transition around 22.0 GPa. These findings provide an in-depth understanding of the structure–property relationship of abnormal compression behavior at the local-structure level.
研究领域:
材料科学
·
高压物理
·
无机化学
·
金属有机框架（MOFs）
·
凝聚态物理
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DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2026
·Vol. 109
·期 5
·e70833
·
IF 4.2
Jia-Min Wu,Wei-Hao Cai,Lin Guo,Zhi-Cong Luo,Guan-Xiao Ran,Zhi-Xiang Cai,Xiao-Feng Zeng,Zhao-Qing Li,Jing-Xian Zhang,Yu-Sheng Shi
Vat photopolymerization (VPP) has recently been applied to fabricate silicon nitride (Si 3 N 4 ) ceramics. To overcome limitations in Si 3 N 4 slurry curing performance, a multi-functional modification strategy utilizing the metal-organic framework MIL-53(Al) was proposed. The introduction of MIL-53(Al) simultaneously affects slurry photocuring performance and ceramic microstructural regulation. MIL-53(Al) serves as a fluorescent active filler acting as an in situ photon source under ultraviolet irradiation, thereby enhancing the curing depth by an average of 17.5 µm. During the debinding process, the decomposition of MIL-53(Al) leaves a pore structure and aluminum oxide that can assist sintering, facilitating phase transformation and forming a well-interlocked β-Si 3 N 4 microstructure. The sintered Si 3 N 4 ceramic exhibited a flexural strength of 269.2 ± 12.6 MPa, and a fracture toughness of 3.54 ± 0.21 MPa·m 1/2 at a porosity of 23.9%. This study demonstrates the multi-functional role of MOF-based additives for both enhancing slurry printability and tailoring ceramic microstructure in fabrication of porous Si 3 N 4 ceramics via VPP.
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高影响因子
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