JOURNAL OF MEMBRANE SCIENCE
·
2023
·
IF 9.5
Rong Xu,Xin Liu,Chunhui Zhu,Yang Pan,Shixin Cheng,Xiuxiu Ren,Meng Guo,Jing Zhong,Quan Liu,Gongping Liu
A new amine-functionalized UiO-66/organosilica mixed-matrix membrane was fabricated and explored for pervaporation (PV) water desalination . The incorporation of amine-functionalized UiO-66 (UiO-66-NH 2 ) into the BTESE-derived organosilica networks endowed the membrane with enhanced hydrophilicity and dense network structure, leading to an improvement in water flux and NaCl rejection. The UiO-66-NH 2 /BTESE mixed-matrix membrane was proved to be highly effective for desalination of saline water in concentrations from 1 to 13 wt% of dissolved NaCl. Moreover, the membrane exhibited superior structural stability under a continuous PV desalination operation up to 100 h, delivering water permeance of >3.1 × 10 −6 mol m −2 s −1 Pa −1 combined with NaCl rejection of >99.9%. The high water permeance was mainly ascribed to the specific pore structure and the preferential interactions between pore channels and water molecules, and the excellent salt rejection was primarily based on the sieving effect. The proposed UiO-66-NH 2 /BTESE mixed-matrix membranes show great prospects as an alternative for concentrated brine desalination.
研究领域:
材料科学
·
膜分离技术
·
环境工程
·
纳米材料
·
化学工程
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DOI
高影响因子
Defence Technology
·
2026
·
IF 6.4
Yazhuo Qian,Yimeng Wang,Meng Zhang,Mengqi Yuan,Qianyou Wang,Li Yang
Multifunctional protective textiles that resist fire, suppress bacterial contamination, and enable the conversion of chemical warfare agent simulants are highly desirable for harsh operational environments. Herein, a hybrid coating was constructed on cotton, polyester (PET), and polyester/cotton blended fabrics (T/C) using a two-step hot-pressing route. A Zn-based dual-ligand metal organic framework (MOF) layer was first grown in situ to provide flame-retardant catalysis and antibacterial Zn 2+ activity, followed by the introduction of amino-functionalized polyhedral oligomeric silsesquioxane (POSS) and immobilization of Tetrakis (4-carboxyphenyl) porphyrin (TCPP) through interfacial interactions to form a robust hybrid network. The resulting fabrics showed substantially improved flame-retardant performance, with the limiting oxygen index (LOI) of cotton increasing from 17.7% to 44.8%, together with high char yield. They also exhibited broad-spectrum antibacterial activity, with more than 99.9% inhibition against Staphylococcus aureus and Escherichia coli , and enabled light-driven degradation of chemical warfare agents (2-chloroethyl ethyl sulfide, CEES), achieving approximately 95% conversion within 10 min. In addition, all coated fabrics retained more than 90% of their initial LOI values after 30 laundering cycles, indicating good laundering resistance of the flame-retardant performance. This work offers a scalable strategy for integrated multifunctional protective textiles.
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RUSSIAN JOURNAL OF GENERAL CHEMISTRY
·
2026
·Vol. 96
·期 7
·188
·
IF 1
Yu Zhaoxiang,Yang Mengyao,Cao Xiyue,Xia Jianfei,Wang Zonghua
A bimetallic FeCo-NC nanozyme was synthesized via pyrolysis of a FeCo-ZIF precursor and evaluated for its enzyme-like catalytic activity and colorimetric sensing performance. Structural characterizations confirmed the formation of a nitrogen-doped porous carbon framework with uniformly dispersed Fe and Co active sites. The FeCo-NC nanozyme exhibited superior oxidase-like activity compared with monometallic counterparts, which is attributed to the synergistic interaction between Fe and Co sites that facilitates electron transfer. Kinetic analysis revealed that the catalytic reaction follows typical Michaelis-Menten behavior, with a low Michaelis constant toward TMB, indicating high substrate affinity. Based on the efficient oxidation of TMB and the subsequent reduction of oxidized TMB by ascorbic acid (AA), a label-free colorimetric sensing platform was constructed. The proposed system showed a concentration-dependent response toward AA with two linear detection ranges (0.1–5 and 5–50 μM) and exhibited high selectivity against common interfering species. This work demonstrates that MOF-derived bimetallic nanozymes are effective catalysts for colorimetric sensing and provides a feasible strategy for the development of nanozyme-based platforms for biomolecule detection.
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WATER AIR AND SOIL POLLUTION
·
2026
·Vol. 237
·期 15
·896
·
IF 3.5
Wang Xu,Wang Shaopo,Wang Zhe,Li Yeye,Zhang Rui,Li Rongguang,Chang Jing
ZIF-8-derived materials showed great potential for adsorbing and decomposing ozone, making them suitable for application in catalytic ozonation. This study synthesized four X-Zn-MOF-C (X = 4, 6, 8, 10) materials, among which 10-Zn-MOF-C exhibited the best catalytic performance, possibly due to its superior promotion of ozone decomposition into ∙OH. A probe method was employed to quantify ROS (∙OH, O 2 −· and 1 O 2 ) in the four X-Zn-MOF-C/O 3 systems. The results showed that the yield of ∙OH was lower than that of O 2 −· and 1 O 2 , however, ∙OH played a more critical role in IBP degradation. ROS quenching experiments further confirmed the significant contribution of ∙OH to pollutant removal. Further the investigation into the sources of ∙OH generation was conducted from two dimensions, catalyst sites and solution properties. Compared to the surface hydroxyl protonation of the catalyst, the synergistic effect between the exposed Zn 2+ and oxygen vacancy on the catalyst surface was more favorable for ∙OH generation on the catalyst surface, which mainly resulted from the formations of metal and vacancy hydroxyl groups. Meanwhile, the generation of ∙OH in the solution relied on the contribution of H 2 O 2 produced from pollutant degradation.
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Qi Zhang,Yuhao Wang,Jing Zhong,Xiuxiu Ren
High concentrations of phosphoric acid (PA) doping will severely compromise the mechanical properties of polybenzimidazole proton exchange membranes (PEMs). Meanwhile, it also leads to PA leaching from membranes. Therefore, it is necessary to balance the advantages of high proton transport performance resulting from high PA doping with the associated reduction in mechanical properties. In this study, sulfonated polybenzimidazole (SPBI) was synthesized, and SPBI@UN PEMs with varying doping levels were prepared by incorporating amino-functionalized metal–organic framework material UiO-66-NH 2 (UN) into SPBI. It was observed that when the UN doping ratio did not exceed 15 wt%, the proton conductivity as well as the tensile strength of the SPBI@UN PEMs increased with rising UN doping ratios after PA treatment, while there was a concomitant decrease in PA uptake and swelling ratio. A high proton conductivity of 0.090 S cm −1 was recorded at 160°C and 30% relative humidity for the SPBI@UN15% membrane under a lower PA uptake of 138.6%, significantly surpassing that of the SPBI membrane under a high PA uptake of 174.7% (0.044 S cm −1 ). Additionally, the tensile strength subsequent to the doping with PA improved from 11.48 MPa for the SPBI membrane to 16.79 MPa for the SPBI@UN15% membrane. In single cell tests, the SPBI@UN15% membrane exhibited remarkable performance. At 140°C, it reached a peak power density of 658 mW cm −2 .
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MICROCHEMICAL JOURNAL
·
2022
·
IF 5.304
Juan Lu,Zhuo Sun,Xin Zhang,Xiangyu Shan,Qian Wu,Yingjie Zhao,Li Tian
A novel electrochemiluminescence (ECL) sensor for glucose detection was constructed by covering Au nanoparticles (Au NPs), Ni metal–organic frameworks nanofibers (Ni-MOF NFs) and glucose oxidase (GOD) on the electrode surface, respectively. Ni-MOF NFs prepared by electrostatic spinning can be used as GOD carrier and ECL promoter. Meanwhile, synergistic effect of Ni-MOF NFs and Au NPs could amplify the ECL signal of Ru(bpy) 3 2+ -TPrA system. With the increasing of glucose concentration, ECL signal was also increasing, so a method for determining glucose could be established. The possible mechanism of luminescence was investigated, and the parameters affecting the experimental reaction were also studied. Under the optimal conditions, the constructed ECL sensor can effectively detect glucose in the range of 2.0 × 10 −10 to 2.0 × 10 −5 M, and the detection limit was 6.7 × 10 −11 M. This study demonstrated for the first time that Ni-MOF NFs could serve as ECL accelerator for the facile detection of glucose in human serum.
研究领域:
生物分析化学
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电化学传感
·
纳米生物技术
·
临床检验医学
·
分子诊断
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DOI
高影响因子
Journal of Materials Chemistry C
·
2020
·Vol. 8
·期 35
·12308-12313
·
IF 7.059
Ying Tang,Wenqian Cao,Lijia Yao,Yuanjing Cui,Yang Yu,Guodong Qian
Encapsulating luminescent dyes in metal–organic frameworks (MOFs) for white-light illumination and displays has received tremendous attention in recent years due to the unique colour-tuning flexibility and designability. However, the luminescent dyes may suffer from degradation due to moisture and oxygen under operating conditions. The stability and reliability of dye-encapsulated MOF phosphors remain challenges to be addressed. Herein, a broadband-emitting MOF phosphor is prepared via an ambient self-assembly process with pyrromethene 546 (pm546), pyrromethene 605 (pm605) and sulforhodamine 101 (SRh101) simultaneously confined in porous nanoscale zeolitic imidazolate framework-8 (ZIF-8). The photostability and thermostability of the pristine phosphor are evaluated in detail. By further coating it with thermoplastic polyurethane (TPU), the relative fluorescence intensity of the pristine phosphor is remarkably enhanced by 52.54%. A highly-stable remote-type incandescent white-lighting device is fabricated with a 460 nm blue LED chip with CIE chromaticity coordinates of (0.465, 0.413), a correlated colour temperature (CCT) of 2642 K and a colour rendering index (CRI) of up to 85.
研究领域:
材料科学
·
光学工程
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DOI
高影响因子
ANALYST
·
2023
·Vol. 148
·期 8
·1838-1847
·
IF 4.2
Zhidong Zhao,Yuan He,Xingrui Qi,Nian Li,Zijian He,Yufang Chen,Tao Jin
Electrochemical determination of synthetic opioids such as fentanyl is meaningful but still challenging no matter from a social or academic perspective. Herein, we report a series of novel electrocatalysts based on Fe-containing metal–organic frameworks and multi-walled carbon nanotubes (Fe-MOF/MWCNTs). The obtained Fe-MOF/MWCNT electrode materials all show ultrasensitivity on fentanyl determination. In particular, MOF-235/MWCNTs even exhibit an ultra-low limit of detection (LOD) of 0.03 μM with a wide linear range from 0.1 to 50 μM. Besides, this series of Fe-MOF/MWCNTs also displays excellent repeatability, selectivity, and stability. Moreover, they show good performance in real sample detection and achieve good recovery of 95.47%–102.41% and 96.62%–103.15% in blood and urine samples, respectively. This high performance in fentanyl determination is mainly contributed by the Fenton-like process and the adsorption function of the Fe-MOF. Therefore, these novel Fe-MOF/MWCNTs are promising electrocatalysts for point-of-care device fabrication and also have potential applications in fentanyl rapid test technology.
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DOI
PubMed
高影响因子
MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 12
·1-10
·
IF 6.408
Sun Zhuo,Lu Juan,Zhang Xin,Shan Xiangyu,Wu Qian,Li Chao,Li Huiling,Yang Shuning,Tian Li
Electrospun nanofibers containing CdTe@ZnNi-metal–organic frameworks (CdTe@ZnNi-MOF NFs) were used for the first time in luminol-O 2 electrochemiluminescence (ECL) system to construct ECL sensor for chlorpyrifos (CPF) detection. Firstly, CdTe@ZnNi-MOF NFs obtained by blending method was used to modify the surface of a glassy carbon electrode, and then, the proposed solid-state ECL sensor was constructed by dropping luminol onto the surface of nanofiber benefiting from chitosan (CTS) viscosity. CdTe@ZnNi-MOF NFs with its large surface area and porosity can be used not only as luminol carrier but also as co-reaction promoter of the ECL system. The ECL sensor obtained satisfactory results in weakly alkaline solution under the synergistic action of CdTe@ZnNi-MOF NFs and luminol. The constructed ECL sensor can effectively detect CPF in the range 1.0 × 10 −14 –1.0 × 10 −9 M, and the detection limit was 6.23 × 10 −17 M (3 σ / m ). The constructed sensor was simple and sensitive, and can be used for the determination of CPF in vegetable samples. It not only broadened the application of MOFs in the field of ECL but also provided a new idea for expanding the application of the luminol-O 2 system. Graphical Abstract
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PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2023
·Vol. 34
·期 19
·1-12
·
IF 2.8
Qin Longlong,Zeng Biao,Qin Ting,Li Chen,Tang Chao,Huang Shengxiang,Deng Lianwen
Magnetic nanoparticles combined with semiconductive metal oxides are considered to be ideal candidates for electromagnetic wave absorption materials, benefiting from suitable conductivity, matched magnetism and strong polarization. In this work, Co–ZnO binary MOF (ZIF-67, ZIF-8)-based carbon composites were fabricated via a facile synthesis route. After optimization of composition and technological parameters, the synthesized nanocomposites acquired optimal electromagnetic characteristics and exhibited superb microwave absorption ability. The lowest reflection loss of the Co–ZnO–C-800 sample reached − 44.8 dB at 9.2 GHz with a thickness of 2.9 mm, and the effective absorption bandwidth (EAB) was 6.95 GHz (6.59–13.54 GHz). The microwave loss mechanism of the nanocomposite material mainly involved dielectric loss and magnetic resonance absorption. This work provides an ingenious design and synthesis strategy for novel lightweight electromagnetic wave absorbers with broadband EAB and strong absorption.
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CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xiao-Gang Jin,Xiao-Kang Liang,Jia-Hao Liu,Jia-Wei Mo,Tian-Xiang Ren,Xiao-Hua Ma,Zhen-Liang Xu
High-performance nanofiltration membrane is of great importance to alleviate the worldwide freshwater crisis. Recent studies have shown that the performance of nanofiltration membranes can be enhanced by optimizing the properties of the substrates. Substrates with large pores are favorable to mass transfer but difficult to prepare highly selective polyamide layers on them by interfacial polymerization reaction. Here we employed porous two-dimensional (2D) aluminum-metal organic framework (Al-MOF) nanosheets to tune the commercial Nylon microfiltration substrate, and then prepared polyamide nanofiltration membranes by interfacial polymerization. 2D Al-MOF nanosheets were chosen for the tuning material except for their obvious advantages of easy synthesis and structural stability, the most important thing was their high porosity, which provided additional water transport channels. The morphologies as well as the separation properties were analyzed systematically. The best-performing Nylon-2.5 TFC membrane achieved an ultrahigh permeability (42.4 L m −2 h −1 bar −1 ), 13 times that of a control (PES-0) TFC membrane prepared on commercial PES substrate under the same interfacial polymerization conditions while ensuring the high rejection of Na 2 SO 4 (97.0%). Our work provides insights for optimizing substrate properties to prepare high-performance nanofiltration membranes.
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高影响因子
Biosensors-Basel
·
2022
·Vol. 12
·期 10
·813
·
IF 5.743
Chao Hu,Ping Pan,Haiping Huang,Hongtao Liu
Cr-MOF nanoparticles were synthesized by a simple hydrothermal method, and their morphology and structure were characterized by SEM, TEM, and XRD techniques. The Cr-MOF modified glassy carbon electrode (Cr-MOF/GCE) was well constructed and served as an efficient electrochemical sensor for the detection of p-nitrophenol (p-NP). It was found that the Cr-MOF nanoparticles had significant electrocatalytic activity toward the reduction of p-NP. The Cr-MOF-based electrochemical sensor exhibited a low detection limit of 0.7 μM for p-NP in a wide range of 2~500 μM and could maintain excellent detection stability in a series of interfering media. The electrochemical sensor was also practically applied to detect p-NP in a local river and confirmed its validity, showing potential application prospects.Keywords:nanoparticle;modified electrode;electrochemical sensor;electrocatalytic activity;detection limit
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高影响因子
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