CHEMOSPHERE
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2020
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IF 5.778
Yuqiang Xiang,Huaduo Yan,Bingjie Zheng,Aroosha Faheem,Wenli Chen,Yonggang Hu
E. coli @UiO-67 composites were obtained using an effective and simple self-assembly method. The composites showed unique properties as a remarkable and recyclable adsorbent for the efficient removal of bisphenol A (BPA) from water with a high adsorption capacity (402.930 mg g −1 ). The increase in pore size is a key factor why E. coli @UiO-67 composites maintained high capacity. The reason might be due to that the composites with large pore sizes and defects could effectively improve mass transport and active molecular metal sites. The adsorption of BPA is a chemisorption process due to the Zr–OH groups in UiO-67 exhibit affinity toward BPA molecules, π–π interaction, and electrostatic attraction. The adsorption efficiency remained at 82.5% after 15 cycles without any remarkable changes in the PXRD patterns of E. coli @UiO-67. Moreover, the use of microorganism-loading MOFs could reduce the cost to at least 50% and minimize secondary pollution through nanoscale MOFs usage reduction. The developed composites have advantages, including low-cost, high adsorption capacity, easy to be separated and regenerated from aqueous solution, a large number of cycles, short adsorption equilibrium time, and stability, showing excellent application prospects. The presented strategy would be a potentially promising way to produce novel MOFs-based adsorbents with high-performance to control environmental pollution from wastewater.
研究领域:
环境科学
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材料科学
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生物工程
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产品关联
DOI
PubMed
高影响因子
CATALYSIS LETTERS
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2024
·
IF 2.3
Zhao Chunzhi,Mao Dongsen,Meng Tao,Guo Qiangsheng,Yu Jun
Owing to the intrinsic nature of the uniformed topologies and ultrasmall Zr 6 nodes of Zr-MOFs, herein, we employed Zr-MOFs (UiO-66 and UiO-67), as opposed to the support of traditional ZrO 2 , to prepare the Pd catalysts for toluene degradation. Compared with the catalysts of Pd/UiO-66 and Pd/ZrO 2 , Pd/UiO-67 catalyst boosted an excellence catalytic performance for toluene degradation, giving the lowest T 90% value of 235 °C with long-term stability. With the assisting of the cavity confinement of Zr-MOFs, Pd nanoparticles are prone to be encapsulated in the 3D frameworks of Zr-MOFs, and the bigger micropores of UiO-67 are more conducive to the formation of larger Pd nanoparticles. The in situ FT-IR results further declared that although the active sites are partly sacrificed due to the larger Pd nanoparticles formed in UiO-67, the stable adsorbed toluene on Pd/UiO-67 boosted the quick degradation of toluene in the reaction interval even without undergoing intermediate processes of benzoate and benzaldehyde. Graphical Abstract UiO-66, UiO-67 and ZrO 2 were employed to prepare the Pd catalysts for toluene degradation, Pd/UiO-67 catalyst boosted an excellence catalytic performance with long-term stability.
研究领域:
催化化学
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环境科学
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材料科学
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产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
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2022
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IF 7.968
Fei Fang,Quankun Lv,Peng Li,Yue Tao,Yan Zhang,Yi Zhou,Xuede Li,Jie Li
Defect engineering is essential for improving the adsorption performance of metal-organic frameworks (MOFs). Herein, hierarchical porous UiO-67(Zr) and analogs with controlled levels of defects were successfully obtained and applied to chemoselectively capture glyphosate (GP) from water. The obtained defective UiO-67 was stable at different pH values. The removal performance of defective UiO-67(Zr) was evaluated systematically as a function of different modulators, water chemistry and interfering ions. The maximum adsorption capacity of defective UiO-67(Zr) reached 322.58 mg/g, superior to most MOFs-based adsorbents. The defective UiO-67(Zr) also showed high selectivity for GP adsorption at high concentrations of humic acids (3 times) and interfering anions (100 times). In addition, the defective UiO-67(Zr) has shown good recovery performance and can effectively remove GP from a variety of contaminated water samples and multi-pollutant systems. The results of batch experiments and microscopic spectral characterization (XPS and FTIR) revealed that GP adsorption was mainly guided by electrostatic action, coordination, pore-filling and hydrogen bonding . These findings verified that the fabrication of defect sites played an important role in promoting the adsorption performance of MOFs. Our work provides a clue to the design of defective MOFs with high adsorption performance.
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
PEST MANAGEMENT SCIENCE
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2025
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IF 3.8
Yuke He,Qiyang Min,Lihan Chen,Jie Lai,Bo Pang,Kun Qian
BACKGROUND Dinotefuran (DNF) is a neonicotinoid insecticide with strong systemic, poisoning and gastric toxicity, which is no cross-resistance with the existing pesticides, but its toxicity to environmental organisms such as bees and earthworms is high. The development of environmentally responsive pesticide controlled-release agents using nanomaterials to process the agents by physical or chemical methods can improve the utilization of the pesticide and better utilize the active molecules of the pesticide. RESULTS To enhance the performance of dinotefuran, UiO-67 was prepared, characterized, and then combined with dinotefuran to form dinotefuran-UiO-67 (DNF@UiO-67) nanocomposites. Compared with dinotefuran, DNF@UiO-67 nanocomposites significantly increased the wettability and photolysis resistance of dinotefuran. Dinotefuran was loaded on UiO-67 without influencing its original activity and was more efficient in the long-term control of pea aphid compared to dinotefuran. The treatment of pea seeds with different concentrations of DNF@UiO-67 did not significantly affect the germination and growth of pea seeds and ensured the normal growth of plants. DNF@UiO-67 reduced the acute toxicity to earthworms and bees. These improvements imply that the DNF@UiO-67 nanocomposites could be used as a potential formulation to improve insecticidal activity and enhance its safety for environmental organisms of dinotefuran. CONCLUSION This study not only develops DNF@UiO-67 nanocomposites to improve the performance of dinotefuran while maintaining its original insecticidal, but also provides a new idea for the application of dinotefuran in agriculture. Our findings will provide more possibilities for the application of DNF@UiO-67 nanocomposites as an effective and environmentally friendly formulation in agriculture. © 2025 Society of Chemical Industry.
研究领域:
农业科学
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环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
Molecular Catalysis
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2024
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IF 3.9
Pushuang Xing,Cong Li,Yixin Chen,Rong-Lan Zhang
PMoV 2 was encapsulated in four MOFs (MIL-101, HKUST-1, UiO-67, ZIF-8) with different cavity sizes and window sizes using a hydrothermal synthesis method. Then, a layer of mesoporous silica was coated on the surface of the MOFs to obtain four designed three-layer encapsulated catalysts 30%PMoV 2 @MOF@mSiO 2 . The physicochemical properties of the catalysts were characterized through various characterization methods, and the influence of different MOF window sizes of the four catalysts on the removal rate of four thiophene sulfides was investigated. The optimal reaction conditions were also explored for the optimal catalyst. The results indicate that under simulated fuel of 2400 ppm, 30%PMoV 2 @UiO-67@mSiO 2 owns the highest catalytic activity. Under optimal conditions, the total removal rate of four thiophene compounds was 91.52 %, and after ten cycles, the efficiency could still reach 86.24 %. This is attributed to the sufficient cavity size of UiO-67, which provides assurance for the loading of PMoV 2 and the large window size, making it possible for the smooth reaction between sulfides and PMoV 2 .
研究领域:
材料科学
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催化化学
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环境科学
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产品关联
DOI
高影响因子
MICROCHIMICA ACTA
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2022
·Vol. 189
·期 3
·1-11
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IF 6.408
Qiang Yu,Yang Weixia,Zhang Xiaoshuo,Luo Xueli,Tang Wenzhi,Yue Tianli,Li Zhonghong
A nanocomposite was prepared by loading UiO-67 nanoparticles onto porous carbon materials derived from Ce-MOF (Ce-PC) for fluorescence detection of glyphosate. The probe (UiO-67/Ce-PC) exhibits fluorescence emission at 414 nm as the response signal under excitation at 310 nm. The fluorescence enhancement mode of UiO-67 reduces the background interference, and the introduction of Ce-PC provide hierarchical nanostructure and large specific surface area that can increase the contact availability and improve the pre-enrichment effect, ensuring UiO-67/Ce-PC with superior sensitivity. The abundant metal hydroxyl group (M–O-H) of UiO-67/Ce-PC could recognize phosphoryl groups (-PO 3 H 2 ) of glyphosate through ligand exchange, which synergizes with H-bonding interaction and electrostatic attraction to exhibit specificity toward glyphosate. The competitive coordination effects weaken the ligand-to-metal charge transfer (LMCT) and consequently induce the fluorescence recovery. The calibration plot of the fluorescence enhancement response of UiO-67/Ce-PC towards glyphosate was recorded in the range 0.02–30 μg mL −1 with a low limit of detection (LOD) of 0.0062 μg mL −1 , which is superior to the pure UiO-67. In addition, the sensor exhibited high selectivity and satisfactory accuracy and precision with recoveries of 92.1–105.6% and RSDs below 3.4%. This work not only presents a feasible sensor for sensitive and selective determination of glyphosate from cereal samples, but also provides a promising strategy for the design of MOF-based nanocomposites to achieve trace detection of various pollutants. Graphical abstract
研究领域:
分析化学
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环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
Science Bulletin
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2019
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IF 6.277
Yang An,Yuanyuan Liu,Hongtao Bian,Zeyan Wang,Peng Wang,Zhaoke Zheng,Ying Dai,Myung-Hwan Whangbo,Baibiao Huang
UiO-67 is a Zr-based metal–organic framework (MOF) containing an organic linker namely, the dianion of biphenyl-4,4′-dicarboxylic acid (bpdc). Ce 4+ metal ions (0.02 Ce to Zr atom ratio) were incorporated into UiO-67 via partially replacing bpdc with the dianion of 2,2′-bipyridine-5,5′-dicarboxylic acid (bpydc); thus, the latter forms a bpydc-Ce complex. The resulting product (i.e., UiO-67-Ce) demonstrated a photocatalytic hydrogen evolution rate that was over 10 times higher than that of UiO-67. Through this modification, a new energy transfer channel is opened up. The energy transfer between the bpdc and bpydc-Ce ligands (i.e., from excited bpdc to bpydc-Ce) weakened the recombination of the charge carriers, which was confirmed by photoluminescence, emission lifetime, and transient absorption measurements. This study presents a new way to construct highly efficient MOF photocatalysts.
研究领域:
材料科学
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化学
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DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2024
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IF 4.9
Tian Si-Yu,Ding Zhu,Yao Mu-Lan,Liu Si-Mian,Hou Xiang-Yang,Tang Long,Yue Er-Lin,Wang Xiao,Wang Ji-Jiang
A three-dimensional UiO-67-BDA with various pore structures and abundant active binding sites is constructed, and Fe@UiO-67-BDA composites with electrochemical sensing and recognition performance were further prepared by successfully loading Fe 3+ ions. The different modified electrodes (Fe@UiO-67-BDA/GCE, UiO-67-BDA/GCE, Fe/GCE) and the bare electrode (GCE) were also characterized in terms of basic structure and electrochemistry, and it was found that the basic structure and electrochemical performances of Fe@UiO-67-BDA/GCE were better than those of the remaining three electrodes, with good selectivity, reproducibility and stability. And the Fe@UiO-67-BDA/GCE sensor with good electrochemical performance was constructed under the optimal working potential (E pa = 0.59 V) and experimental conditions, which was utilized to rapidly and accurately detect heavy metal ions Hg 2+ by the DPV method, with a detection limit of up to 1.642 × 10 −9 M. In addition, the electrochemical behavior mechanism of the Fe@UiO-67- BDA/GCE sensor was investigated. Finally, the sensor was applied to detect cosmetic heavy metal ions, and the experimental results also showed high reliability and practicality. Therefore, MOFs composite material is applied to the field of electrochemistry, because of its simple operation technology, fast detection speed and high sensitivity, so that it has a greater application prospect.
研究领域:
分析化学
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环境科学
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材料科学
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
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2025
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IF 4.7
Shunxin Xu,Juncai Zhang,Yaru Zhao,Yanqiong Shen,Yichun Qiu,Yuhang Bao,Kui Tang,Yanfang Peng,Yuanqin Zeng,Jinjie Qian,Qipeng Li
R6G@UIO-67 consisted of the rhodamine 6G (R6G) in the nanocages or nano-pores of UIO-67 , which was successfully constructed by the one-pot method under hydrothermal conditions. Whose structure, stability and morphology were characterized by the XRD, TGA and SEM. R6G@UIO-67 exhibited the highly thermal stability up to 550 °C, and emitted the bright yellow light at 580 nm with the quantum yield of 44.66%, which could selectively detect the ornidazole (ODZ) among eight antibiotics. Furthermore, R6G@UIO-67 was associated with commercial green phosphor powder and red phosphor powder, which were encapsulated on the 455 nm blue LED chip, to obtain an exceptional warm white light emitting diode (WLED) device with the CIE coordinates of (0.385, 0.385), correlated color temperature (CCT) of 3951 K, luminous efficiency (LE) of 122.45 lm/w and color render index (CRI) of 93.8.
研究领域:
材料科学
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光学
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
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2019
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IF 4.85
Diwei Zhang,Jing Zhao,Quanlin Liu,Zhiguo Xia
All-inorganic halide perovskite (CsPbX3, X = Cl, Br, or I) nanocrystals (NCs) have been widely studied due to their outstanding optoelectronic properties. However, some inevitable factors like light, heat, and moisture affected the stability of CsPbX3 NCs and further limited their practical application. In this work, the stability of all-inorganic halide perovskite NCs can be improved by integrating them in the stable Zr-based metal–organic frameworks (Uio-67). Compared to pristine perovskite NCs, typical CsPbBr3@Uio-67 composites display a stable photoluminescence property that can be maintained for 30 days under ambient atmospheric conditions. Due to the proposed confinement effects of CsPbX3 NCs coordinated with the pore structures of Uio-67, the related structural model of CsPbX3@Uio-67 composites was elucidated. White LED device was further fabricated by combining CsPbBr3@Uio-67 composites and commercial K2SiF6:Mn4+ red phosphors with a blue-emitting chip, which demonstrated a wide color gamut (138% of National Television Standards Committee color space). The strategy on encapsulation of CsPbX3 NCs into Uio-67 will open up a stable platform for optoelectronic applications.
研究领域:
材料科学
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光学工程
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纳米技术
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产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 25
·14778-14784
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IF 3.119
Shujian Sun,Peisen Liao,Lihua Zeng,Lanqi He,Jianyong Zhang
Robust UiO-67 metal–organic framework nanoparticles have been precisely and uniformly anchored on the surface of a photonic crystal via metal–organic gelation, resulting in a nanoscale UiO-67 composite. Mott–Schottky measurements indicate that UiO-67/B is an n-type semiconductor with electron conduction, and the band gap significantly decreases with the assistance of the photonic crystal matrix with a band gap of 0.75 eV. Benefiting from the abundant photoelectrons trapped from the photonic crystal, good hydrogen evolution reaction performance is achieved under light irradiation. The current density increases from 3.2 to 7.0 mA cm−2 at −0.6 V (vs. RHE) for UiO-67/B. The optimized carrier density obtained from UiO-67/B is apparently increased 2.15 times under light irradiation for 30 min. This work provides a rational strategy to address the photo-capture and energy transfer issues of metal–organic frameworks under visible light irradiation for H2 production in artificial photosynthesis.
研究领域:
材料科学
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光化学
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能源转换
✓ 已验证
DOI
高影响因子
BIOCHEMICAL ENGINEERING JOURNAL
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2025
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IF 3.8
Rui Zhao,Wenhui Yang,Pengyan Yang,Yunhan Cao,Fenghuan Wang
Carbonic anhydrase (CA) has been suggested as a biocatalyst for carbon dioxide capture since it could effectively catalyze the hydration of carbon dioxide. Metal-organic frameworks (MOFs) have attracted significant attention in the development of immobilized enzyme carriers due to their pore tunability and excellent stability. In this study, UiO-67 materials with varying defect degrees (DUiO-67) were prepared using the organic linker missing method to enhance the catalytic performance. The results indicated that both the defect degree and the pore size of DUiO-67 materials decreased with an increase in acetic acid equivalent. After CA immobilization, all DUiO-67 materials exhibited excellent thermal, pH and recycling stability. CA@DUiO-67–25 showed higher enzyme catalytic activity and conversion ability than the other materials. After 10 cycles, CA@DUiO-67–25 retained 57 % of its initial conversion capacity. The construction of defective MOFs provides a promising new strategy for CA immobilization to achieve the catalytic conversion of CO 2 .
研究领域:
材料科学
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生物催化
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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）