Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Fangfang Li,Jingya Kong,Ziyuan Fang,Laili Wan,Jing Gu,Changchun Ji,Ying-Hua Zhou
The catalytic transformation of epoxides into cyclic carbonates offers a promising strategy to mitigate excessive CO 2 emissions while producing valuable chemicals. However, attaining high catalytic efficiency and selectivity with MOF-based catalysts under mild conditions continues to be a significant challenge. Additionally, many existing catalytic systems rely on cocatalysts or solvents, compromising sustainability and practicality. In this study, a series of alkyl chain-tunable Zr-MOF catalysts, denoted as TCPP-UiO-66-PDC-DIL(R) (R = Et, Pr, Bu, Pe), were synthesized via a two-step approach. Initially, Zr 4 + ions were coordinated with meso-tetra(4-carboxyphenyl) porphine (TCPP) and 2,5-pyridine dicarboxylic acid (PDC) to create TCPP-UiO-66-PDC. Subsequently, dicationic ionic liquids (DIL) with varying alkyl chains lengths were decorated through post-synthetic modification. Their catalytic performance was assessed for CO 2 -epoxide cycloaddition without the use of cocatalysts or solvents. Among them, TCPP-UiO-66-PDC-DIL(Bu) exhibited the best catalytic performance, achieving a 98 % yield for producing chloropropene carbonate at a low CO 2 pressure (1.0 bar) within 12 h. This exceptional activity was attributed to the synergistic interplay of Lewis-acidic Zr 4+ nodes for epoxide activation, the porphyrin moiety of the TCPP ligand enhancing CO 2 adsorption, and the strong nucleophilicity of bromide anions in DIL to facilitate the halide ion-mediated nucleophilic attack on the epoxide-CO 2 adduct. Additionally, the catalyst demonstrated superior universalities toward other substrates and recyclability. These findings expand the potential of the multifunctional MOF-based heterogeneous catalysts, enhancing their efficiency and sustainability for use in CO 2 conversion.
研究领域:
催化化学
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材料科学
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环境化学
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绿色化学
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无机化学
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有机合成
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高影响因子
JOURNAL OF SEPARATION SCIENCE
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2025
·Vol. 48
·期 7
·e70221
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IF 2.8
Suling Zhang,Hengli Liu,Xiaoyang Li,Weixuan Yao,Jianbo Ying,Ting Lü,Dong Zhang,Hongting Zhao,Ying Pan
A facile dispersive micro-solid phase extraction (D-μ-SPE) method that uses spherical cellulose aerogels is proposed herein for the trace detection of seven benzodiazepines in biological samples. Zirconium metal–organic framework (MOF) particles were dispersed in the cellulose aerogels to improve the extraction efficiency. The prepared lightweight spherical aerogels (diameter of approximately 2 mm) were easily collected from the solution using a disposable dropper, overcoming the difficult recycling of powdered MOFs. The effect of the MOF loading (39, 56, and 66 wt%) and the organic ligand (terephthalic acid, 2-aminoterephthalic acid, and 4,4′-biphenyldicarboxylic acid) in the Zr-MOF on the extraction ability of the hybrid aerogels towards benzodiazepines was studied. The hybrid aerogel with a UiO-67 loading of 66% showed the best extraction performance primarily because of the enhanced surface area, pore volume, and π–π stacking interactions. Moreover, the UiO-67/cellulose aerogel spheres were mechanically stable and showed reusability for at least eight consecutive extraction cycles. The main factors affecting extraction, such as solution pH, extraction time, type and volume of desorption solvent, and desorption time, were also examined. Under the optimal conditions, the limits of detection ranged from 0.01 to 0.03 µg/L, and the limits of quantification ranged from 0.02 to 0.10 µg/L. The recoveries were 81.8%–104.2% for urine samples and 81.5%–99.5% for hair samples. The results suggest that the spherical aerogel-based D-μ-SPE is a simple and effective method for the quantification of benzodiazepines in biological samples.
研究领域:
分析化学
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材料科学
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生物医学
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DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
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2022
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IF 6.206
Dehong Fan,Xiaobang Liu,Kai Qi,Zhenyu Chen,Yubing Qiu,Bokai Liao,Xingpeng Guo
A smart-sensing coating is developed by adding a dual-emission fluorescent zirconium metal-organic framework/rhodamine B composite (Zr-MOF@RhB) into the commercial epoxy resin coating, which can autonomously detect and distinguish the damage of surface coating and the corrosion of substrate aluminum . The orange-yellow fluorescence can be observed to identify the area of mild coating damage without metal corrosion, resulting from the cumulative release of Zr-MOF@RhB with the emission wavelength of 583 nm. In case of the occurrence of aluminum corrosion, the fluorescence color turns from orange-yellow to green, in which the emission behavior of Zr-MOF@RhB at 490 nm is greatly enhanced with the presence of Al 3+ ions. The smart-sensing ability can availably and robustly operate in the conditions of long term, wide ranges of pH and temperature, and diverse interfering substances. This simple and powerful warning system relying on fluorescent MOFs would not only extend the practical applications of MOFs but also be a promising candidate for smart coating strategies.
研究领域:
材料科学
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腐蚀与防护
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化学工程
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高影响因子
MICROCHIMICA ACTA
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2025
·Vol. 192
·期 11
·1-16
·
IF 5.3
Zhuang Dengke,Guo Hao,Wei Yuli,Yu Zhiguo,Peng Liping,Ma Yanyan,Hui Yingfei,Yan Yu,Yang Wu
A sensitive and accurate ratiometric fluorescent sensor (RhB@UIO-67) is constructed by simply encapsulating rhodamine B (RhB) within a zirconium-based metal–organic framework (UIO-67). Based on the inhibition effect of ligand–to-metal charge transfer, adenosine triphosphate ATP induces a significant enhancement in the MOF centre emission, but does not affect the fluorescence of RhB in the probe material at all, which are respectively employed as detection signal and reference signal to realize sensitive ratiometric fluorescence detection of ATP in human serum and urine with a detection limit (LOD) of 0.45 μM. In particular, since the introduction of the target molecules does not cause any structural degradation, the sensor can be reused. Additionally, due to fluorescence resonance energy transfer between the probe components and malachite green (MG), addition of MG results in different degrees of quenching of the fluorescence emissions of UIO-67 and RhB in the RhB@UIO-67 and thus the probe material can simultaneously serve as a sensitive ratiometric sensing platform for MG detection in aquatic products including fish and shrimp with a low LOD of 0.03 μM. Benefited from its simplicity, sensitivity, and reusability, the sensing material has a wide application potential. Graphical abstract
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PubMed
高影响因子
ANALYTICA CHIMICA ACTA
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2026
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IF 6.1
Tianhong Liu,Ziyi Xu,Shuiyuan Zhang,Long Yu,Junting Mo,Mingtai Sun,Suhua Wang
Background Trace water contamination in organic solvents severely hampers chemical synthesis, pharmaceutical manufacturing, and electronic device fabrication; however, existing detection methods lack portability, adequate sensitivity, or stability. While MOF-based fluorescent sensors show promise, most are limited by single-signal outputs, weak anti-interference capability, and poor solvent tolerance. Results To address these challenges, we report an amino-functionalized europium-doped zirconium MOF (Eu@MOF-NH 2 ), synthesized via a one-step solvothermal method, serving as a robust ratiometric fluorescent probe for trace water detection. The material exhibits dual emissions: ligand-based (435 nm) and Eu 3+ -centered (614 nm). Upon water exposure, strong hydrogen bonds with the ligand activate intramolecular charge transfer (ICT) to intensify the blue emission. Concurrently, high-frequency O–H vibrational coupling quenches the red emission by blocking ligand-to-metal energy transfer, causing a rapid (<30 s) pink-to-blue visual transition. The fluorescence intensity ratio (I 435 /I 614 ) demonstrates excellent linearity with water content (0–10% v/v) and achieves ultralow limits of detection in ethanol (0.1643%), THF (0.0311%), methanol (0.3355%), and acetonitrile (0.0148%). Furthermore, this probe maintains consistent sensing performance across 11 diverse organic solvents with highly varying polarities. Integrated with a smartphone-assisted RGB colorimetric platform based on the blue-to-red intensity ratio, Eu@MOF-NH 2 enables portable, on-site, and quantitative visual detection. Significance This work overcomes the traditional limitations of sensitivity and stability, providing reliable material design and sensing strategies for industrial trace water monitoring and quality control.
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高影响因子
MICROCHIMICA ACTA
·
2025
·Vol. 192
·期 9
·1-14
·
IF 5.3
Cao Xiaodong,Zhang Chenlu,Gao Yu,Yu Weina,Liu Chao,He Shudong,Sun Hanju,Ye Yongkang
Foodborne pathogens are a leading cause of food safety incidents. Here, we developed a highly sensitive dual-channel biosensor for the parallel electrochemical detection of Salmonella typhimurium ( S. typhimurium ) and Escherichia coli ( E. coli ) O157:H7 using bimetallic metal–organic framework (BMOF)-based signal nanotags. The BMOF-based nanotags were synthesized by functionalizing gold nanoparticle-doped CuZr-MOF with signal DNA sequences sDNA1 (forming sDNA1-AuNPs@CuZr-MOF nanotag) and PbZr-MOF with signal DNA sequence sDNA2 (forming sDNA2-AuNPs@PbZr-MOF nanotag). The biosensing platform was constructed using two glassy carbon electrodes (GCEs). Each GCE was sequentially modified, first with electrodeposited gold nanoparticles (depAu) and then with the corresponding capture DNA sequences (cDNA1 for channel 1 or cDNA2 for channel 2). Target detection was achieved on the sensing interface via sandwich hybridization: in channel 1, the invA gene of S. typhimurium (tDNA1) was recognized by both cDNA1 on the sDNA1-AuNPs@CuZr-MOF nanotag; similarly, in channel 2, the eaeA gene of E. coli O157:H7 (tDNA2) was recognized by both cDNA2 and sDNA2 on the sDNA2-AuNPs@PbZr-MOF nanotag. Leveraging the high stability and ease of surface modification of UiO-66 (Zr-MOF), along with the enhanced electrochemical oxidation signals from the introduced secondary metal ions (Cu 2+ and Pb 2+ ) in Zr-MOF framework, the biosensor achieved parallel detection with wide linear ranges (3.5 to 3.5 × 10 5 CFU mL −1 for S. typhimurium , and 2.2 to 2.2 × 10 5 CFU mL −1 for E. coli O157:H7) and low detection limit (LODs of 0.54 CFU mL −1 and 0.80 CFU mL −1 , respectively). Furthermore, the fabricated biosensor demonstrated excellent reproducibility, selectivity, and stability, highlighting great potential for practical use in monitoring foodborne pathogens. Graphical
研究领域:
生物传感器
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纳米技术
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食品安全
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电化学
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病原体检测
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金属有机框架
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PubMed
高影响因子
ELECTROPHORESIS
·
2024
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IF 3
Jiao Long,Yan Gao,Kangjia Sheng,Tao Bao,Sicen Wang
In this study, an efficient and practical method was established to enrich and detect three trace quinolones in fish tissue. Low-cost and environment-friendly cotton threads were coated with PCN-224 using a simple one-pot hydrothermal method. The PCN-224-modified cotton threads (PCN-224@CTs) were characterized to ensure that the crystal was successfully fabricated on the surface of cotton threads. The prepared PCN-224@CTs were wrapped around steel needles to form suspended bars. Key factors of extraction and desorption were optimized, and analytical performance was tested. Suspended bar sorptive extraction coupled with ultra-performance liquid chromatography (UPLC) with a photodiode array detector was used to analyze the quinolones in fish tissue. The detection limits of quinolones were 0.26–1.15 ng/mL, and the recoveries were achieved in the range of 81.31%–115.81%, indicating a simple method with high sensitivity and satisfactory practicability of enriching, separating, and detecting trace quinolones was successfully established.
研究领域:
分析化学
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环境科学
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PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
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2022
·Vol. 46
·期 18
·8534-8544
·
IF 3.925
Ruowei Lu,Cuijuan Wang,Yanxia Chen,Lichuan Tan,Peng Wang,Siwen Feng
Adsorption and Fenton catalysis technologies have been widely used to treat wastewater. Herein, Zr-MOF composites are synthesized with Mn-doped magnetic hierarchical porosity and ionic liquid (IL) post-functionalization (MFC@Mn-NH2-UiO-66@IL). The characterization of the composite shows that the MOF we synthesized is laminar and porous, which promotes the adsorption process and subsequent H2O2 decomposition catalysis. Electrostatic interactions, hydrogen bonds, and π–π stacking interactions between [BMIM][PF6] and methylene blue (MB) greatly improve the adsorption performance. Subsequently, H2O2 is rapidly decomposed in a Zr-MOF and Fe3O4 system to produce ˙OH for the oxidative decomposition of MB. Zr plays an electron transfer role in the catalytic reaction. The MFC@Mn-NH2-UiO-66@IL material has a high adsorption capacity for aqueous MB solutions. In combination with the subsequent Fenton-like oxidation reaction, a removal efficiency of 98% is achieved in 90 min. We believe that our work has essential impact in the field of wastewater treatment based on the advantages of the MOF's dual function in degrading pollutants in water.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2026
·
IF 4
Mingjie Guo,Weihong Xie,Suling Zhang,Xiaofei Li,Jianwei Zhang,Zhongshi Xu,Ying pan,Dong zhang,Lulu Xu,Ting Lü,Linlin Qiu
Etomidate and its analogs can produce euphoria and addiction, and their recent abuse has led to an increasing number of poisoning and fatal cases. Thus, they are classified as controlled psychotropic drugs. This work proposed small-sized wood aerogel-supported zirconium metal-organic framework (UiO-66) particles for the extraction of trace etomidate and its analogs from urine and e-cigarette samples. Owing to the removal of lignin and hemicellulose, the delignified wood aerogel exhibited enhanced internal pore structures and exposed functional groups, which facilitated the immobilization of more UiO-66 crystals and achieved a high loading efficiency of 61.3 %. The lightweight UiO-66/wood aerogel composite enables facile separation, avoiding UiO-66 powder leakage while retaining its adsorption capacity. The composite was mechanically stable and kept commendable reusability over nine consecutive cycles. Benefiting from its high specific surface area and multiple chemical interactions with target drugs, the extraction method achieved enrichment factors of 22.9–30.0. Key factors influencing extraction—including solution pH, extraction time, the type and volume of desorption solvent, and desorption time—were investigated. Under the optimal conditions, the UiO-66/wood aerogel-based micro-solid phase extraction coupled with GC–MS method showed wide linear ranges and good precision (1.1%–3.2% for intra-day; 3.4%–5.1% for inter-day). The limits of detection and quantification were in the range of 0.02–0.04 μg/L and 0.05–0.1 μg/L, respectively. The recoveries for the urine and e-cigarette oil samples ranged from 86.2%–110.2% and 80.1%–107.9%, respectively. This method is eco-friendly, simple, and sensitive for the determination of new psychotropic drugs in clinical and forensic applications.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Jiacong Wu,Juan Han,Yanli Mao,Lei Wang,Yi Wang,Yuanyuan Li,Yun Wang
A metal–organic frameworks (MOFs) with adjustable mesopores was prepared through bionic mineralization using protein as template in this paper. By regulating the content of bovine serum, pore structures of different sizes (6.46, 7.55, 10.80 nm) were obtained, used for the immobilization of enzymes (HRP, laccase and cellulase). It was found that the UIO-66 with a pore size of 6.46 nm exhibited the highest loading capacities for the investigated three enzymes. Under optimized conditions for immobilization, the maximum loading capacity of HRP, laccase and cellulase was 205.7, 214.2 and 203.9 mg g −1 , respectively. It should be noted that the stabilities of the three immobilized HRP@UIO-66, laccase@UIO-66 and cellulase@UIO-66 were significantly improved due to the favorable fitting between the pore size of the carrier material and the enzyme molecular size. In particular, the substrate affinity of the immobilized HRP@UIO-66 (0.120 g L −1 ) is similar to that of free HRP (0.122 g L −1 ). It is mainly due to that the appropriate porous structure of the carrier could avoid the obstruction of the substrate mass transfer channel after the adsorption of enzyme molecules. Moreover, the porous structure has a certain enrichment effect on the substrate, which promotes the catalytic efficiency of immobilized enzymes.
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高影响因子
危险品化学品经营许可证（带存储）