NEW JOURNAL OF CHEMISTRY
·
2024
·
IF 2.7
Yongzhao Zhang,Xuzheng Chen,Yunlei Zhou,Tao Feng,Luping Lyu,Zhenya Zhu,Yifan Liu
The efficient transformation of glucose into 5-hydroxymethylfurfural (5-HMF) is crucial for sustainable bio-refinery processes, but achieving high production efficiency remains challenging. In this study, we presented the preparation of Al-containing metal-organic frameworks (MOFs), specifically MIL-53(Al), MIL-53(Al)-NO2, and MIL-53(Al)-NH2, using different ligands as catalysts to enhance the production of 5-HMF from glucose. Comprehensive characterization provided valuable insights into the properties of the synthesized MOFs. The synthesized MOFs exhibited varied MIL-53(Al) states, morphologies, and thermal stabilities based on the different ligands employed, which in turn affected their catalytic performance. Among the Al-containing MOFs synthesized, MIL-53(Al)-NH2 demonstrated remarkable catalytic capabilities for the conversion of glucose to 5-HMF. This MOF achieved an impressive 5-HMF yield of 53% and a reaction selectivity of 54%. The catalytic efficiency was further enhanced by leveraging the synergistic effect of MIL-53(Al)-NH2 in combination with Amberlyst-36, resulting in a 5-HMF yield of 59% and a reaction selectivity of 60%.
研究领域:
化学工程
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催化
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材料科学
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可持续化学
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DOI
高影响因子
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
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.
研究领域:
材料科学
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环境分析
·
传感技术
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产品关联
DOI
高影响因子
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
·
2022
·
IF 1.193
Linli HOU,Li WANG,Yonghai SONG,Limin LIU
A luminescent hydroxyl-functionalized MIL-53(Al) (OH-MIL-53(Al)) was prepared by one-step solvent thermal method for multiresponsive fluorescence sensor. The OH-MIL-53(Al) exhibited uniform nanospheres with average diameter of 150±20 nm, flexible three-dimensional frameworks, and good dispersion in water. The OH-MIL-53(Al) emitted green fluorescence with a maximum wavelength of 515 nm which showed good fluorescence quenching response for sensing F − and fluorescence enhancement response for water, with good day-to-day stability. The mechanism was based on protonation/deprotonation of hydroxyl group located on OH-MIL-53(Al). Good linear relationship could be found between the luminescence intensity of 515 nm and F − concentrations in the range of 0–60 µM with a determination limit of 70 nM. At the concentrations from 0% to 100%, the fitting curve for water content was in good agreement with the linear equation, and the detection limit was 0.10%. OH-MIL-53(Al) demonstrated excellent fluorescence sensing performance, indicating that it could be used as a multiresponsive sensor to practical application.
研究领域:
材料科学
·
分析化学
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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.
研究领域:
环境科学
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材料科学
·
化学
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产品关联
DOI
PubMed
高影响因子
ANALYTICAL LETTERS
·
2020
·
IF 1.467
Meijuan Ren,Huan Wang,Yuanyuan Liu,Qin Ma,Wenjing Jia,Mingzhu Liu,Huiju Wang,Yongchang Lu
Amino-MIL-53(Al) nanosheets were synthesized by a hydrothermal reaction and were employed as a fluorescent probe because of their high quantum yield and excellent stability. The amino-MIL-53(Al) nanosheets have a maximum fluorescence emission peak at 435 nm using an excitation wavelength of 335 nm. The fluorescent intensity of luminophor at 435 nm was linearly quenched when mercury (II) (Hg2+) was added, which occurred due to the adsorption of Hg2+ onto the luminophor surface. Under these conditions, the fluorescent signal of the system is in the “turn-off” state. Following the addition of glutathione (GSH) into the system, the quenched fluorescence intensity may be partially restored based on the reaction between glutathione and Hg2+. In this condition, the fluorescent signal of the amino-MIL-53(Al)-Hg2+ system is in the “turn-on” state. Therefore, the amino-MIL-53(Al) nanosheets were successfully used as a “turn-off-on” fluorescent sensing system to determine the concentrations of Hg2+ in Tibetan medicine and glutathione in rabbit serum. A good correlation coefficient was obtained between the quenching of the fluorescence intensity of luminophor and the concentration of Hg2+ using the optimized conditions. A linear range was acquired from 1.96 nM to 38.27 μM with a detection limit of 0.23 nM of Hg2+ based upon a signal-to-noise ratio of three. For glutathione, the linear dynamic range was from 210 nM to 15.25 μM with a detection limit equal to 8.11 nM based upon a signal-to-noise ratio of three. This developed sensor system has the advantages of high selectivity, favorable sensitivity and simple operation for the determination of Hg2+ and glutathione in real samples.
研究领域:
分析化学
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生物化学
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产品关联
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
POLYHEDRON
·
2019
·
IF 2.284
Ning Tian,Yifang Dai,Qing Liu,Wei Dai
A general synthetic strategy for HS-Fe 3 O 4 @MIL-53(Al) adsorbent has been developed in this work. The composite material exhibits an efficient capture performance for rubidium ion due to sulfhydryl group and magnetic Fe 3 O 4 doped in its porous cavity. The results of X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and N 2 adsorption–desorption proved that the HS-Fe 3 O 4 was immobilized in the composite material. High Rb + uptake capacity over the HS-Fe 3 O 4 @MIL-53(Al) is attributed to the exchange of acidic protons between the sulfhydryl group and the Rb + . The pseudo-second-order and Freundlich model could make a good description of the adsorption process. The Rb + sorption selectivity was moderately influenced by any co-ions effect (K + , Na + and Cs + ) due to HS-Fe 3 O 4 doped. These results reveal that our novel composite material might be a promising industrial adsorbent for Rb + capture.
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
LANGMUIR
·
2022
·
IF 4.331
Zhiliang Jin,Xiaohong Li,Teng Li,Youji Li
Graphdiyne (g-CnH2n–2) is a new carbon material composed of sp and sp2 hybrid carbon atoms. Since the synthesis by Li’s team, graphdiyne has been widely studied in other fields because of its excellent properties. In this paper, graphdiyne was synthesized from copper-containing materials and the composite GDY/CuI/MIL-53(Al) S-scheme heterojunction is prepared for photocatalytic cracking of water to produce hydrogen. First, GDY/CuI was prepared by organic synthesis, and then GDY/CuI was anchored on the surface of MIL-53(Al) by in situ ultrasonic stirring. After the continuous optimization of experimental conditions, the final hydrogen evolution rate is much higher than that of MIL-53(Al). This efficient photocatalytic performance can be attributed to the S-scheme heterojunction formed by the unique energy band arrangement. At the same time, the mechanism of charge transfer was demonstrated by in situ irradiation X-ray photoelectron spectroscopy. The strong interaction among the three strongly promotes the separation and transfer of photogenerated electron–hole pairs.
研究领域:
材料科学
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能源化学
·
光催化技术
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产品关联
DOI
PubMed
高影响因子
COMPOSITES COMMUNICATIONS
·
2024
·
IF 6.5
Xinyue Yang,Yong Li,Deyun Yue,Rui Li,Haojie Song
The construction of ternary heterojunction photocatalysts can achieve multi-gradient transfer of charges and accurate control the position of photogenerated electrons which has received increasing attention. In this paper, NH 2 -MIL-53(Al)@BiOBr@CQDs-10 % (ABCQDs-10 %) was prepared via a facile hydrothermal and chemical synthesis processes. Three-dimensional serration of NH 2 -MIL-53(Al) as a platform for irregular BiOBr nanosheets, CQDs promote interfacial contact and act as electron transport channels between BiOBr and NH 2 -MIL-53(Al) and constitute Z-type heterojunctions with high redox properties. ABCQDs-10 % shows the best photocatalytic removal efficiency (94.24 %) of CIP, the reaction rate constants (0.045 min −1 ) were 1.2 and 64 times higher than BiOBr and NH 2 -MIL-53(Al), respectively. The excellent degradation performance is attributed to the construction of Z-type heterojunction of NH 2 -MIL-53(Al)@BiOBr@CQDs which improve electron-hole separation and transfer efficiency. The main active species was •O 2 - . The photocatalytic activity of ABCQDs-10 % had not obvious loss after cycle experiments and the crystal structure had no significant changes, means high stable photocatalytic activity.
研究领域:
材料科学
·
环境科学
·
化学工程
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产品关联
DOI
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 4
·2397-2404
·
IF 3.361
Jing Chen,Yali Xu,Shuying Li,Fanghong Xu,Qian Zhang
Tetracycline detection has been a great concern because of its overuse and difficulty in degrading. Here, a detection method with ratio fluorescence was developed by synthesizing Eu3+ doped nanocomposites with NH2-MIL-53(Al) nanosheets. After adding tetracycline, the fluorescence intensity at 616 nm characteristic emission peak of Eu3+ was sensitized by the antenna effect generated from coordinating Eu3+ with tetracycline, but the fluorescence of NH2-MIL-53(Al) at 433 nm was quenched by the fluorescence resonance energy transfer between the Eu3+-tetracycline composition and NH2-MIL-53(Al). Therefore, the efficient detection of tetracycline was achieved based on this change of ratio fluorescence signal. The experimental results show that Eu3+/NH2-MIL-53(Al) has excellent selectivity, a wider linear range and a lower detection limit for detecting tetracycline. This method can afford favorable ideas for developing advanced chemical and biological sensors.
研究领域:
分析化学
·
环境科学
·
生物传感技术
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产品关联
DOI
PubMed
高影响因子
INORGANICA CHIMICA ACTA
·
2018
·
IF 2.264
Yebin Guan,Ming Xia,Xiaohong Wang,Weicheng Cao,Alessandro Marchetti
Nano-sized NH 2 -MIL-53(Al) particles were conveniently synthesized in aqueous solution at ambient temperature with a widely applicable mixing method, and the morphology and character were examined with a series of techniques. XRD patterns and TEM images showed that the obtained NH 2 -MIL-53(Al) material possessed rod-like shape, which is different from those obtained from N, N-dimethyl formamide (DMF). This nano-sized NH 2 -MIL-53(Al) matrix displayed enhanced efficiency for adsorptive elimination of methyl blue molecules in aqueous solution.
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
危险品化学品经营许可证（带存储）