CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Jincan Liu,Dejin Xu,Guangchun Xu,Xiaona Li,Jiangtao Dong,Xingkun Luan,Xuezhong Du
Nanopestcides based on metal–organic frameworks (MOFs) have attracted great attention. Highly stable mesoporous metal–organic framework PCN-777 with large pores can accommodate the biologically active insecticide avermectin (AVM) of relatively large molecular dimensions. In this work, PCN-777 nanoparticles were synthesized for the creation of double-gated nanopesticides with sodium lignosulfonate (SL) and chitosan. The double gatekeepers could realize excellent sealing performance to prevent premature leakage of AVM. The double-gated PCN-777 based nanopesticides could achieve the controlled release of AVM in response to pH, laccase, phosphate, and phytic acid (PA), which are related to the physiological environments of pests and crops. The PA-triggered controlled release of loaded cargos in MOF-based delivery systems was reported for the first time. This is the first example of PCN-777 drug/pesticide delivery system and also the first case of controlled-release MOF-based AVM nanopesticides, and the mechanisms of the stimuli-responsive controlled pesticide release were clearly elucidated. The nanopesticides prevented the ultraviolet photolysis of AVM owing to the PCN-777 organic ligands and SL coating. The nanopesticides had high insecticidal efficacy and field control efficacy against the pests Spodoptera litura Fabricius on cabbage, in comparison with traditional pesticide formulations, and the nanopesticides had no influence on plant growth and showed high biosafety toward non-target organisms and human cells. The smart controlled-release nanopesticides show high potential and application prospect in ecological agriculture.
研究领域:
农业科学
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生物技术
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环境科学
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产品关联
DOI
高影响因子
BIOMASS & BIOENERGY
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2023
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IF 6
Wen-jie Cong,Jian Yang,Jianguo Zhang,Zhen Fang,Zheng-diao Miao
Magnetic self-assembly metal-organic frameworks (MOFs) were constructed for the co-production of biodiesel and hydrogen from waste oils. The highly active MOF nanoparticles were synthesized and catalyzed crude glycerol with 126.8% hydrogen yield in subcritical water (350 °C, 5 min). By coupling alkali with MOF-derived carriers, continuous process of fast production of biodiesel (with microwave heating at 90 °C in 15 min, 15:1 methanol/oil molar ratio and 9 wt.% catalyst dosage) and hydrogen (350 °C, 5 min) were achieved with yield of 95.3% biodiesel from waste oil (AV of 3.95 mg KOH) and 102.6% H 2 from crude glycerol by-product, respectively. The nanoparticles were magnetically separated for 5 cycles with 95% biodiesel yield. Subsequently, the deactivated catalyst was used for hydrothermal gasification with 50% increasing in hydrogen yield. Characterization techniques showed active sites of MOF-derived nanoparticles were well dispersed with surface area increased by 3.9 times for highly efficient production of biodiesel and hydrogen. It revealed that MOF materials can be designed to make active catalysts and carriers for loading catalytic sites for biomass conversions to targeted biofuels.
研究领域:
能源与环境科学
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催化化学
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DOI
高影响因子
Pharmaceutics
·
2023
·Vol. 15
·期 7
·1874
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IF 5.4
Heming Zhao,Liming Gong,Hao Wu,Chao Liu,Yanhong Liu,Congcong Xiao,Chenfei Liu,Liqing Chen,Mingji Jin,Zhonggao Gao,Youyan Guan,Wei Huang
Prostate cancer (PC) is one of the common malignant tumors of the male genitourinary system. Here, we constructed PTX@ZIF-8, which is a metal-organic-framework-encapsulated drug delivery nanoparticle with paclitaxel (PTX) as a model drug, and further modified the synthesized peptide dimer (Di-PEG2000-COOH) onto the surface of PTX@ZIF-8 to prepare a nanotargeted drug delivery system (Di-PEG@PTX@ZIF-8) for the treatment of prostate cancer. This study investigated the morphology, particle size distribution, zeta potential, drug loading, encapsulation rate, stability, in vitro release behavior, and cytotoxicity of this targeted drug delivery system, and explored the uptake of Di-PEG@PTX@ZIF-8 by human prostate cancer Lncap cells at the in vitro cellular level, as well as the proliferation inhibition and promotion of apoptosis of Lncap cells by the composite nanoparticles. The results suggest that Di-PEG@PTX@ZIF-8, as a zeolitic imidazolate frameworks-8-loaded paclitaxel nanoparticle, has promising potential for the treatment of prostate cancer, which may provide a novel strategy for the delivery system targeting prostate cancer.Keywords:metal-organic framework;paclitaxel;peptide dimer;prostate cancer
研究领域:
药学
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肿瘤学
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DOI
PubMed
高影响因子
ACS Applied Energy Materials
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2023
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IF 6.4
Lele Lu,Qiang Li,Runhao Zhang,Jialong Jiang,Shiqi Zhang,Jiachen Guo,Peng Cheng,Wei Shi
Transition-metal phosphides (TMPs) are regarded as ideal HER electrocatalysts owing to their rich reserve, flexible composition, competitive activity, and excellent stability. Yet, TMPs still suffer from poor electrical conductivity and agglomeration under a high synthetic temperature of the solid-state reaction. Benefiting from the monodisperse metal sites with organic matrix surrounded, metal–organic frameworks (MOFs) have great potential as a feedstock to produce MOF-derived TMPs with tailored microenvironments of the active sites. Herein, a series of nanostructured Ni2P@SNC were facilely fabricated by a one-step phosphorization of a well-designed Ni-MOF with red phosphorus as a “P” source. The optimal Ni2P@SNC-800 displayed an overpotential of 80 mV in 1.0 M KOH and 97 mV in 0.5 M H2SO4 at 10 mA cm–2, demonstrating excellent HER performance as well as long durability in both electrolytes. The comprehensive performance of Ni2P@SNC-800 surpasses that of other heteroatom-free MOF-derived Ni2P significantly. This work provides a facile approach for the design and synthesis of MOF-derived TMPs coated with a heteroatom-doped carbon matrix as an electrocatalyst with high activity.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2023
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IF 8.6
Shi-Ming Li,Hong-Chan Jiang,Qing-Ling Ni,Liu-Cheng Gui,Xiu-Jian Wang
Ethane (C 2 H 6 ) and ethylene (C 2 H 4 ) have similar physical and chemical properties, which are critical and difficult for the separation of C 2 H 6 /C 2 H 4 mixtures in the petrochemical process. Traditional C 2 H 4 -selective adsorbents can separate the C 2 H 6 /C 2 H 4 mixtures, but need further desorption treatment to obtain pure C 2 H 4 production. On the contrary, high-pure C 2 H 4 can be prepared in one step by C 2 H 6 -selective porous material. Herein, we present a caged metal-organic framework ( GNU-2 ) based on Zn (II) clusters, which has advantageous adsorption sites and cavity pockets for the reverse capture of C 2 H 6 from C 2 H 6 /C 2 H 4 mixtures. At 298 K and 1 bar, high C 2 H 6 uptake (5.10 mmol g −1 ) and C 2 H 6 /C 2 H 4 selectivity (1.849) were attained based on the activated GNU-2 ( GNU-2a ), exceeding a number of top C 2 H 6 -selective adsorbents. Grand canonical Monte Carlo (GCMC) simulations exhibit that the appropriate chemical environment of nonpolar cage in GNU-2a allows it to continuously maintain closer van der Waals contacts between C 2 H 6 molecule, saturated Zn cluster and nonpolar pore surface through multiple C H···O hydrogen interactions and C H···π hydrogen interactions. Moreover, dynamic breakthrough studies also show that GNU-2a displays the actual separation performances of C 2 H 6 .
研究领域:
化学工程
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材料科学
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产品关联
DOI
高影响因子
Membranes
·
2025
·Vol. 15
·期 9
·261
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IF 3.6
Jinsuo Yu,Chenyang Jiang,Yanjun Wang,Zemin Li,Yawei Gu,Rujing Hou,Yichang Pan
Efficient xylene isomers’ separation remains a challenge due to their similar kinetic diameter and boiling points, particularly for the separation of the immediate size of meta-xylene (MX). A metal–organic framework (MOF) membrane offers the opportunity to realize the isomers’ separation due to the highly tunable pore size and pore environment. Herein, an In-based hierarchic MOF (MIL-100) with a size of 0.77 nm was screened, aiming at the realization for isomer separation through pore size matching. Meanwhile, the polar microenvironment in the MOF channel built through trimesic acid ligands contributes to the higher affinity to the MX relative to the PX. With the equimolar feed mixture of MX/PX, the optimal membrane demonstrated a total flux of 7.6 kg·m−2·h−1and an MX/PX separation factor of 2.54 at room temperature through pervaporation. Such performance highly indicates the possibility for efficient liquid xylene separation in future.
研究领域:
材料科学
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分离技术
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膜科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
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2025
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IF 8.2
Yue Liu,Wei Peng,Hancheng Ma,Jinsai Tian,Kao Wang,Zhaobo Zheng,Lin Xu,Yao Ding
Metal–organic frameworks have aroused growing interest in the research of energy conversion and storage. However, their specific configuration, especially the coordination environment of metal active sites, has not been well designed. Their role in regulating the structural reconstruction of pre-electrocatalysts remains ambiguous. Herein, this work reports a dual-ligand strategy to design a Ni-MOF with asymmetric Ni–O coordination, named Ni–BDC–DOBDC, which occupies unsaturated Ni sites and strengthens Ni–O bonds. As inspected by X-ray absorption near edge structure as well as a series of in situ and ex situ characterizations, this special Ni–O coordination contributes to Ov-NiOOH with rich oxygen vacancies during fast self-reconstruction at a lower potential. Moreover, theoretical results reveal that Ni sites in Ov-NiOOH occupy a higher d-band center, a lower adsorption energy barrier, and a more electronic negative surface in the oxygen evolution reaction, leading to good electrocatalytic performance. Overall, Ni–BDC–DOBDC catalysts exhibit a low overpotential of 202 mV at 10 mA cm–2 and outstanding stability within 240 h. The insights in this work pave the way for high-performance MOF-based catalysts by regulating their self-reconstruction kinetics through a new aspect of asymmetric ligand engineering.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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2024
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IF 4.3
Luyao Shen,Faqiang Guo,Yundong Hang,Jingming Yang,Zhifen Guo,Wenhui Liang,Pan Du,Wenmei Jiao
Water resources contaminated by industrial dyes can pose a significant threat to the environment and human health. Herein, we conducted a study on the removal of cationic and anionic dyes, such as methylene blue (MB) and methyl orange (MO), using MIL-140A, a zirconium-based metal-organic framework. MIL-140A is synthesized in a Schlenk flask at 120 °C, whereas its conventional synthesis route involves a teflon-sealed autoclave at 220 °C, highlighting the cost reduction and lower equipment requirements of the low-temperature synthesis. The structure of MIL-140A is characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscope (SEM), and nitrogen adsorption techniques. The optimal pH for the adsorption of two dyes by MIL-140A is pH 5–8 for MB and pH 3 for MO. The adsorption equilibrium can be reached within 60 min at room temperature, and the adsorption of both dyes on MIL-140A follows pseudo-second-order kinetics and Langmuir isotherm, and the maximum adsorption capacity of MO and MB by MIL-140A were 163.6 and 89.2 mg/g, respectively. Thermodynamic studies indicate an entropy-driven spontaneous process. The adsorption mechanism of MO and MB on MIL-140A is investigated using FT-IR and X-ray photoelectron spectroscopy. The adsorption of MO involves coordination between Zr and sulfonate, while MB adsorption occurs via π-π interactions. Additionally, MIL-140A exhibits better removal efficiency for MO from lithium battery wastewater compared to MB, primarily due to stronger coordination interactions than π-π interactions. These findings demonstrate that MIL-140A is a promising adsorbent for effectively removing both anionic and cationic dyes from water resources.
研究领域:
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 Sciences
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2024
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IF 5.9
Linyu Shen,Zhiquan An,Xiaoyu Jian,Minjie Li,Bihong Zhang,Liang-Hong Guo
The arbitrary discharge of tetracycline (TC) residuals has seriously influenced the ecosystem and human health. Laccase (Lac)-based biodegradation technology is considered a more effective way to remove TC due to its high catalytic efficiency and less by-product. Nevertheless, free Lac suffers from poor stability, easy inactivation and difficult recovery, restricting its application. Immobilization of Lac is considered an efficient strategy for addressing these obstacles. In this study, a magnetic metal-organic framework of Fe 3 O 4 @SiO 2 @UiO-66-NH 2 (MMOF) was prepared and used as a carrier to immobilize Lac (Lac@MMOF) for TC degradation. Benefiting from the multiple binding sites, adsorption, and protection effect of MMOF, Lac@MMOF displayed a wider pH application range (2–7) and better thermal (15–85 °C), repeatability, and storage stability than free Lac. Furthermore, owing to the synergism of MOF adsorption and Lac biocatalysis, the removal rate of Lac@MMOF for TC could be up to 98 % at pH = 7 within 1 hr, which was 1.29 and 1.24 times that of free Lac and MMOF, respectively. More importantly, Lac@MMOF could easily be separated from aqueous solution under a magnetic field and maintained good removal performance (80 %) after five cycles. The degradation products were identified by applying LC-MS/MS, and possible degradation mechanisms and pathways were proposed. Finally, the antibacterial activity of intermediate products was evaluated using Escherichia coli , which revealed that the toxicity of TC was reduced effectively by the degradation of Lac@MMOF. Overall, Lac@MMOF is a green alternative for residual antibiotic removal in water.
研究领域:
环境科学
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生物技术
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材料科学
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产品关联
DOI
PubMed
高影响因子
LUMINESCENCE
·
2024
·Vol. 39
·期 10
·e4916
·
IF 3.2
Chen Wang,Wenheng Li,Xiaohong Wang,Dongshan Xiang,Kun Zhai
In this paper, a highly sensitive method for sulfur ion (S 2− ) detection was developed based on a four-color fluorescence probe constructed from copper-containing metal–organic framework (CuBDC) and four dye-labeled single-strand DNA (ssDNA). In the absence of S 2− , dye-labeled ssDNA can be adsorbed on the surface of CuBDC, and the dyes are close to copper ion on the CuBDC surface, their fluorescence is quenched by copper ion, and their fluorescence signals are weak. In the presence of S 2− in the system, S 2− reacts with copper ion in CuBDC to form CuS, which has a more stable structure than complex CuBDC, resulting in the decomposition of CuBDC. In this case, dye-labeled ssDNA are detached from the CuBDC surface and dissolved in the solution, and the fluorescence of the dyes is restored. Under the optimized conditions, there is a good linear relationship between the total fluorescence intensity of four dyes and the concentration of S 2− in the range of 2 × 10 −9 to 5 × 10 −8 mol/L; the detection limit is 2.2 × 10 −10 mol/L. The method has a good selectivity and accuracy, and it can be applied to the analysis and detection of S 2− in actual water samples.
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 of Advanced Materials
·
2023
·Vol. 15
·期 9
·1159-1165
·
IF 0.9
Ren Qinhui,Chen Peng,Yang Yaqi,Wei Fuhua,Chen Hongliang,Wang Siyuan,Liang Zhao
In this paper, metal–organic frameworks (MOFs) are applied to get rid of Congo red from effluent in an inexpensive and effective manner. Co-containing MOFs (Co-MOF) were prepared via solvothermal treatment, and their structures were tested by performing SEM, TG, and XRD. The MOFs
were studied for the removal of CR from wastewater, and the kinetics of the adsorption process were investigated. The results indicated that the pseudo second-order kinetic model properly describes the removal of CR and the maximum adsorption capacity within 5 h is 355.2 mg/g for Co-MOF. The
adsorption capacity of the MOFs was evaluated under different pH conditions. This work highlights the broad application prospect of MOFs in sewage disposal.
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
Food Analytical Methods
·
2022
·Vol. 15
·期 10
·2801-2809
·
IF 3.498
Wang Xiaofei,Zhang Lu,Ye Nengsheng,Xiang Yuhong
A new metal–organic framework heterostructure composite (MOF@MOF, ZIF-8@PCN-128Y) was synthesized by an internal extension growth method and used as a sensor for the detection of tetracycline (TC). In this method, TC was enriched by virtue of the adsorption capacity of ZIF-8 and detected by PCN-128Y acting as an optical tentacle in virtue of its luminescence advantage. TC was rapidly detected with sensitivity and selectivity, and the limit of detection was 60 nM. At the same time, this method has good linearity and a wide linear range. TC in milk and beef samples was determined by this sensor, and the recovery rate was 94.2–106.3%. This work provided guidance for the construction and application of the MOF@MOF fluorescence sensor.
研究领域:
材料科学
·
分析化学
✓ 已验证
DOI
高影响因子
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