INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Weibo Lu,Huangwei Ye,Yike Zhu,Yuhan Li,Huan Li,Qing Shen,Jian Chen
The non-destructive, real-time, and visual assessment of fish freshness is crucial for maintaining food quality and safeguarding public health. In this study, a pH-sensitive and colorimetric enhancement film was developed using a carboxymethyl cellulose/anthocyanin/metal-organic framework (CMC-BA-UIO). The concentration of UIO-66 in the film-forming solution significantly influences the mechanical properties and ammonia responsiveness of the indicator film, with the CMC-BA/2.5%UIO-66 variant exhibiting optimal performance. When utilized for real-time fish freshness monitoring at 4 °C, the CMC-BA/2.5%UIO-66 indicator film demonstrated a distinct color transition from purple to yellow, which exhibited a strong correlation with the rot index (TVB-N) of the fish. These findings indicate that the developed indicator film has potential applications in intelligent packaging for monitoring food shelf life, providing a visual alert to producers and consumers regarding food spoilage.
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DOI
PubMed
高影响因子
Membranes
·
2021
·Vol. 11
·期 1
·35
·
IF 4.106
Jiangfeng Lu,Xu Zhang,Lusheng Xu,Guoliang Zhang,Jiuhan Zheng,Zhaowei Tong,Chong Shen,Qin Meng
Development of mixed matrix membranes (MMMs) with excellent permeance and selectivity applied for gas separation has been the focus of world attention. However, preparation of high-quality MMMs still remains a big challenge due to the lack of enough interfacial interaction. Herein, ionic liquid (IL)-modified UiO-66-NH2filler was first incorporated into microporous organic polymer material (PIM-1) to prepare dense and defect-free mixed matrix membranes via a coating modification and priming technique. IL [bmim][Tf2N] not only improves the hydrophobicity of UiO-66-NH2and facilitates better dispersion of UiO-66-NH2nanoparticles into PIM-1 matrix, but also promotes the affinity between MOFs and polymer, sharply reducing interface non-selective defects of MMMs. By using this strategy, we can not only facilely synthesize high-quality MMMs ignoring non-selective interfacial voids, but also structurally regulate MOF nanoparticles in the polymer substrate and greatly improve interface compatibility and stability of MMMs. The method also gives suitable level of generality for fabrication of versatile defect-free MMMs based on different combination of MOFs and PIMs. The prepared UiO-66-NH2@IL/PIM-1 membrane exhibited outstanding gas separation behavior with large CO2permeation of 8283.4 Barrer and high CO2/N2selectivity of 22.5.Keywords:mixed matrix membrane;amino-functional UiO-66;PIM-1;[bmim][Tf2N];gas separation
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PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Ruirui Jin,Jingling Gong,Zhaoyang Li,Bin Xiang,Weimin Liu,Jian Li
The increase in oily wastewater exacerbates global water scarcity, triggering ecological damage and health risks. Although membrane separation technology was widely adopted in oily wastewater treatment due to its high efficiency and energy savings, membrane fouling issues lead to flux decline, increased energy consumption, and reduced membrane lifespan, thereby limiting its application. Therefore, this study proposed an advanced “water absorption-storage” strategy by in-situ growing UiO-66-NH₂ nanoparticles on attapulgite (APT) through carefully designed micro-nano-scale rough structures and chemical interactions, forming a unique biomimetic “corn-like” structure. The APT@UiO-66-NH₂/PEG composite membrane prepared in this study establishes a robust hydration barrier through synergistic interactions between its components, thereby exhibiting both outstanding anti-oil fouling capability and highly efficient, stable oil-water emulsion separation performance. Meanwhile, the in-situ growth of UiO-66-NH₂ on APT effectively resolved the issue of easy detachment between APT and UiO-66-NH₂. Moreover, the abundant hydrophilic functional groups (–OH) in polyethylene glycol (PEG) form hydrogen bonds with UiO-66-NH₂ and APT, further enhancing the structural stability. The obtained APT@UiO-66-NH₂/PEG composite membrane achieved separation efficiencies exceeding 99.8 % for various oil-in-water emulsions, with a separation flux reaching 3020 LMH/bar. After 10 separation cycles and 60 min of continuous operation, the separation performance remained essentially stable. The composite membrane demonstrated excellent chemical durability and mechanical stability in high-concentration acid, alkali, and salt solutions, as well as during bending and abrasion tests. Therefore, this study presents a simple and effective purification solution for practical oily wastewater, with the associated strategies and preparation techniques demonstrating broad application prospects.
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高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2018
·
IF 3.716
Zhiming Yan,Mei Wu,Biqing Hu,Minna Yao,Lan Zhang,Qiaomei Lu,Jie Pang
In this work, metal-organic framework particles incorporated fibers (UiO-66/PAN nanofibers) were used as adsorbent in pipette tip solid phase extraction (PT-SPE) for the first time. The UiO-66/PAN nanofibers were fabricated by a facile electrospinning method and characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction and nitrogen adsorption-desorption experiments. The UiO-66/PAN nanofibers were applied to assemble a novel PT-SPE cartridge for determination of four phytohormones followed by high performance liquid chromatography (HPLC). Several experimental parameters such as kinds of UiO-66/PAN nanofibers, the amount of UiO-66/PAN nanofibers, the effect of solution pH, ionic strength and desorption conditions were intensively investigated. Under the optimal conditions, the linear ranges of the phytohormones were in the range of 0.06–60 ng/mL with correlation coefficients above 0.992. The limits of detection were between 0.01 ng/mL to 0.02 ng/mL. The interday and intraday precision (RSD) for three replicate extractions of the four phytohormones (15 ng/mL for each) was in the range of 1.5–5.6%. The established method was successfully applied for the determination of phytohormones in watermelon and mung bean sprouts samples. The results showed that the electrostatic interaction between the positively charged UiO-66 and anionic forms of phytohormones played an important role in the extraction of the phytohormones.
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PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2022
·
IF 5.304
Fujian Xu,Jinyi Zhang,Xiaoliang Zeng,Zhou Long,Xiandeng Hou
Alkaline phosphatase (ALP) is now a well acknowledged indicator for diverse clinical diseases correlated with its abnormal expression. Compared to the assays by traditional and lately emerging methods, the fluorescent (FL) sensing, especially in the turn-on mode, has become more favored due to its simplicity, low cost, and high sensitivity and precision. However, the feasible FL probes are still limited and suffering from poor biological compatibility, complex preparation, additional modification or function-alization. Herein, we found that one common metal–organic framework, UiO-66-NH 2 at nanoscale, could act as a new and label-free FL probe for facile sensing of ALP in the turn-on mode, based on the simple aid by phenyl phosphate which could be hydro-lyzed by ALP, with the product of phosphate ion enhancing the FL emission of UiO-66-NH 2 via simple adsorption. Unlike many other FL probes in the turn-on mode, it was unnecessary to quench the FL of the probes in advance, greatly simplifying the sensor design. Moreover, by use of a new method based on dielectric barrier discharge (DBD), the UiO-66-NH 2 could be prepared in 10 min, much shorter than that (usually hours) for preparing most other FL probes for ALP assay. The limit of detection was 0.4 U L -1 , superior or at least rivalrous to the previously reported ones, and the ALP assay was also accomplished for real serum samples, with the analytical results highly consistent with those obtained by the clinical procedures, revealing its high practical utility.
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高影响因子
APPLIED CATALYSIS A-GENERAL
·
2024
·
IF 4.7
Xin-Hao Shen,Feng Liu,Qin-Qin Chen,Ying Gao,Xiao-Wen Wang,Xin Liu
The efficient degradation of emerging pollutants in water, represented by CBZ, is receiving increasing attention from all sectors of society. Although advanced oxidation reactions represented by Fenton reaction can efficiently degrade emerging pollutants, the problem of iron sludge that comes with it is hindering the further promotion of this technology. Herein, UiO-66(Zr)-2OH material was synthesized by hydrothermal method and loaded with Pd 0 NPs on the surface of the material by in situ reduction. The MOFs-H 2 -Accelerated Catalytic Fenton system was constructed by accelerating the regeneration of Fe(II) in the system by activating the [H] produced by H 2 introduced into the system at room temperature and pressure. Within 180 min, the removal of the target pollutant CZB could reach more than 99 % under the condition of only 25 µmol of Fe(II) and 25 mmol of H 2 O 2 .
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DOI
高影响因子
WATER SCIENCE AND TECHNOLOGY
·
2022
·Vol. 85
·期 5
·1636-1647
·
IF 2.43
Jin Yuning,Wu Danping,Ma Na,Dai Wei
MOFs (metal-organic frameworks) significantly suffer from water- and heat instable issues, restricting their practical application, such as the capture of hazardous anionic dyes (e.g. Congo red, CR) from water. In the present contribution, a series of novel composites (UiO-67@CNTs) composed of microporous UiO-67 (Zr6O4(OH)4(CO2)12) and mesoporous CNTs (carbon nanotubes) have been innovatively synthesized by an in-situ hydrothermal reaction strategy. This UiO-67@CNT impressively retains structural integrity whether contacted with strong acid, distilled water, and strong alkali conditions even for 20 days. Due to the existence of CNT, its heat stability can reach up to 480 °C, which is superior to that of UiO-67. Open Zr(IV) sites, mesoporous, and high surface area in the structure of UiO-67@CNTs play associative effects for CR capture ability. CR uptakes over (5.0)UiO-67@CNTs can reach 1024 mg/g, exceeding some other previous adsorbents in literature. Importantly, UiO-67@CNTs could retain a remarkable CR capture ability even after the fifth cycle. This work expands views for water-heat resistant MOF-based composite with excellent ability of CR capture. UiO-67@CNTs exhibited outstanding hydrolytic stability, retaining intactness for 20 days even in strong acid and alkali. UiO-67@CNTs performed more excellent thermal stability until 480 °C. Novel UiO-67@CNTs have potential applications for CR capture.
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DOI
高影响因子
Frontiers of Chemical Science and Engineering
·
2025
·Vol. 19
·期 4
·1-11
·
IF 4.5
Shao Siqing,Jin Liping,He Siyuan,Feng Yijing,Guo Wenwen
To achieve fire-resistant epoxy resin (EP), a UiO-66-based novel flame retardant coating (CS@APP@UiO-66) was prepared by modifying UiO-66 with chitosan (CS) and ammonium polyphosphate (APP) through a layer-by-layer (LbL) self-assembly method, which was then introduced into an EP system to improve its fire safety. The results of scanning electron microscopy, X-ray diffraction and Fourier transform infrared spectroscopy show that the unsaturated Zr atoms in the UiO-66 framework provide many active sites conducive to modification, so that the UiO-66 particles, which originally had a regular octahedral structure, are more dispersed by LbL modification without causing doping or distortion issues. The thermogravimetric analysis results indicate that the char residue of EP/2% UiO-66 is increased by 2.52% compared with that of pure EP, indicating that the thermal properties of the EP composite are improved after modification. In addition, the cone test results indicate that EP/2%UiO-66-5L has good flame retardancy and smoke suppression properties, and the peak heat release rate, total smoke production and rate of CO generation values are 25.2%, 5.7% and 38.5% lower than those of the unmodified EP. Moreover, it can be concluded from the Raman test that the graphitization degree of the modified EP composite is strengthened. The above results indicated that after the incorporation of CS@APP@UiO-66 into the EP composites, more char layers formed as physical barriers to prevent the transfer of mass and heat, thus reducing the speed of flame propagation. Therefore, the flame resistance and smoke suppression of the EP composites improved. These favorable characteristics, including high flame retardant efficiency and good smoke suppression, make LbL-functionalized UiO-66 promising for flame retardant polymer applications.
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高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Yaohong Yang,Yuefeng Huang,Xinjie Yang,Li Liu,Peng Wang,Zhenqiang Kan,Wei Bi,Kaimeng Xu,Guanben Du,Lianpeng Zhang
Bio-based composites can mitigate the pollution issues linked to petroleum-based materials due to their eco-friendly properties. On the other hand, bio-based functionalized metal-organic frameworks have gained attention in the field of flame retardants due to their multi-pathway flame retardant mechanism and environmentally friendly synthesis process. However, its application in wood industry is less. In this work, a novel functional adhesive and coating (ACS-MACS/PA-UiO66-NH 2 ) was developed by using phosphorus-rich biomass phytate functionalized metal-organic framework (MOF) PA-UiO66-NH 2 as a flame retardant and mixed with modified chitosan. Furthermore, using ACS-MACS/PA-UiO66-NH 2 and three-layer wooden boards, a tight cross-linked network was formed through hot pressing dehydration and condensation reactions to prepare multifunctional wood composites. The experimental results indicated that the mechanical properties of the multifunctional wood composites are excellent. Additionally, these wood composites exhibit high levels of charring and graphitization, leading to excellent flame retardancy. The preparation process of these multifunctional wood composites is straightforward, and their excellent properties provide a foundation for the development of high-performance green composite materials.
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高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Tingting Sun,Xinwei Zhang,Yisheng Hu,Lei Xu,Yahui Zhao
The UiO-66-FP/HPW/TiO 2 heterojunction photocatalytic material is fabricated by one-pot solvothermal method. The crystal structure, elemental composition, morphology, and optical properties of as-prepared catalysts are well-characterized. Subsequently, the synthesized materials’ catalytic activity is evaluated by degrading rhodamine B (RhB) and ofloxacin (OFX) under visible-light illumination. It turns out that the 10 wt% UiO-66-FP/HPW/TiO 2 sample possesses the best efficiency, with 98.6% RhB and 97.2% OFX removed under identical condition, which is 4.68 and 4.14 times than that of HPW/TiO 2 , respectively. The superior efficiency can be ascribed to the construction of UiO-66-FP/HPW/TiO 2 heterostructure, better adsorption capacity of organic contaminants, enhanced visible light response, and lower recombination rate of e − -h + pairs. The quenching effect of distinct scavengers indicates that •OH is an additional significant contributor to the ternary photodegradation system besides •O 2 – and h VB + species. This constitutes another reason for the superior photocatalytic activity of UiO-66-FP/HPW/TiO 2 relative to HPW/TiO 2 . The photo-degradation efficiency of 10 wt% UiO-66-FP/HPW/TiO 2 composite is reduced by 4.68% after running five cycles. Overall, this work presents one type of efficient and reusable TiO 2 -based photocatalysts driven by visible light.
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DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2022
·
IF 5.477
Yong Pan,Feng Liu,Yong Zhou,Chen Zhu,Haixia Pang,Baoming Xu
Background Phosphorus in wastewater is a major environmental concern. Very small phosphorus inputs in the environment can cause algal blooms that can deplete the dissolved oxygen and decrease the water quality, leading to eutrophication. Furthermore, some algal blooms produce toxins and bacterial growth that can cause human illness through exposure to contaminated water. Therefore, It is necessary to remove phosphorus before it is discharged to the environment. Methods adsorbent enhanced adsorptive ultrafiltration (UF) has recently emerged as an advanced ion recovery technology with membrane filtration function and adsorption function, and is very effective in removing cationic bisphosphate and anionic phosphate. Significant findings Herein, a novel defect-rich and covalently-crosslinked octanoic acid (OA)-UiO-66(Zr)-NH 2 /PVC adsorption ultrafiltration membrane are designed for removal of phosphate ions in water. The OA-UiO-66-NH 2 /PVC-33 membrane achieved the adsorption capacity (∼30 mgg −1 ) and higher removal efficiency (∼90%). The OA-UiO-66(Zr)-NH 2 /PVC ultrafiltration membrane exhibited a higher water flux of 266.9 L/(m 2 ·h·bar) compared to those of pristine PVC and UiO-66-NH 2 /PVC. Filtration and cyclic stability experiments reveal that OA-UiO-66(Zr)-NH 2 /PVC membrane can maintain a high retention capacity and exhibit excellent regeneration performance after 5 cycles.
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高影响因子
Journal of Materials Chemistry A
·
2024
·
IF 10.7
Wen Lu,Chen Wang,Wenhui Song,Zhixiong Zhang,Chengde Xie,Jianjun Wang
The heavy metal ion hexavalent chromium (Cr(VI)) in wastewater significantly threatens public health. Heterojunction photocatalysts typically demonstrate high reduction efficiency in water for Cr(VI) contamination. Overcoming the drawbacks of single metal organic frameworks (MOFs) or covalent organic frameworks (COFs), MOF@COF heterostructures inherit the advantages of large porosity, high surface area, and multiple active sites of single components. Herein, we report novel hybrid UiO-66-NH2@HDU-25 heterojunctions based on a condensation reaction. The optimal ratio of UiO-66-NH2@HDU-25 presented significantly superior photocatalytic activity to most reported MOFs and COFs due to heterojunction formation, which promoted charge separation. Under identical conditions, the optimally formulated UiO-66-NH2@HDU-25 could remove over 99% of Cr(VI), approximately 1.8 and 2.6 times the original UiO-66-NH2 and HDU-25 levels. Furthermore, the UiO-66-NH2@HDU-25 (8 : 1) heterojunction demonstrated favorable reusability and stability over five reaction cycles. Various experiments and density functional theory (DFT) calculations investigated the charge carrier transport pathways and possible photocatalytic mechanisms. The Z-scheme mechanism for the photocatalytic Cr(VI) reduction by UiO-66-NH2@HDU-25 was proposed and validated. This work aims to open new horizons for preparing novel photocatalyst heterojunctions with excellent visible light responsiveness for environmental water remediation.
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高影响因子
危险品化学品经营许可证（带存储）