INORGANIC CHEMISTRY COMMUNICATIONS
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2025
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IF 5.4
Qifan Yang,Haodong Xie,Xiang Ni,Li Liu,Yuan Xue,Yan Liu,Lei Wang,Hongjun Zhu
Adsorptive separation of C 2 H 2 from C 2 H 4 , which could deal with multi-steps for their similar kinetic diameter and physical properties, still poses a significant challenge. In this work, we prepared two metal cations (Co 2+ , Zn 2+ )-exchanged aluminosilicate FAU zeolites as an inorganic porous matrix, and grafted an organic zeolitic imidazole framework crystal layer to construct the inorganic–organic composites for gas separation process of C 2 H 4 among the mixed gas components. Such inorganic–organic porous composites can adsorb C 2 H 2 and hinder the large-sized C 2 H 4 . The Co-FAU@ZIF-8 composite was verified through breakthrough experiments and demonstrated a promising adsorptive volume of 1.46 mmol g −1 with an IAST selectivity of C 2 H 2 /C 2 H 4 of 5.6 at 298 K, respectively. Via powder X-ray diffraction crystallography and combined spectroscopy, we found that the exchanged metallic cation located at the accessible s 6 r , and served as the anchor point for the epitaxy of different crystals. Such tunable features ( i.e. , metallic centers and pore diameter) provide a potential pathway for the sub-sequential development of highly efficient adsorptive materials.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Rui Ding,Yan Dai,Wenji Zheng,Xiangcun Li,Xiaoming Yan,Yi Liu,Xuehua Ruan,Shaojie Li,Xiaochen Yang,Kai Yang,Gaohong He
The trade-off between gas permeability and selectivity represents a huge challenge for membrane separation. In this work, we design unique polystyrene-acrylate (PSA) modified hollow ZIF-8 (PHZ) nanospheres via a facile hard template-incomplete etching strategy as fillers for mixed matrix membranes (MMMs). In the vesicles shaped PHZ, the hollow core builds a low-resistance CO 2 transport freeway, leading to improved CO 2 permeability. Meanwhile, the outside PSA layer intensifies the interface affinity between ZIF-8 and Pebax through molecular chains entanglements and hydrogen bonding, enhancing membrane selectivity. Through controlling the PSA etching process, both the hollow core with tunable size and the outside PSA layer with adjustable thickness are achieved. The 10 wt% PHZ-2/Pebax MMMs present the best performance with a CO 2 permeability of 172.4 Barrer and CO 2 /N 2 selectivity of 87.9. The higher CO 2 /N 2 selectivity proves that the PSA layer on the PHZ has better compatibility with Pebax. The higher CO 2 permeability is attributed to the low-resistance hollow core. The gas separation performance of PHZ-based MMMs not only well exceeded the 2008 Robeson upper-bond line but also was superior to those of other published MOF-based MMMs. The concept of vesicle-shaped PHZ paves a way to concurrently enhance both the gas permeability and selectivity of MMMs.
研究领域:
材料科学
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化学工程
✓ 已验证
DOI
高影响因子
Aggregate
·
2024
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IF 13.9
Shuqi Wu,Fang Nan,Kewen Zhang,Wan Hao,Di Shi,Yang Li,Wei Deng,Nur Jarhen,Kaixuan Li,Yunyun Xiao,Jun Li,Xiao Lin
Osteoarthritis (OA) is associated with metabolic imbalance of articular cartilage and an increase of intracellular reactive oxygen species (ROS). Synergistic therapy based on the codelivery of ROS scavengers and antisense oligonucleotides (ASO) into chondrocytes has the potential to effectively treat OA. Here, we developed a novel biocompatible metal-organic framework (MOF)-encapsulated nanozyme/ASO delivery platform (miR/IrO 2 @ZIF-8) for OA treatment. IrO 2 nanoparticles with the catalytic activities of superoxide dismutase/catalase were synthesized using a hydrothermal method, resulting in excellent ROS scavenging performance. IrO 2 was further loaded into zeolitic imidazolate framework-8 (ZIF-8) to maintain its catalytic efficacy and regulate its size, surface charge, and biocompatibility to enhance the therapeutic effect of the platform. As an effective ASO delivery carrier, the synthesized IrO 2 @ZIF-8 exhibited high antagomiR-181a loading and lysosomal escape capacity, enabling it to rebalance cartilage metabolism. In vitro experiments showed that miR/IrO 2 @ZIF-8 could restore ROS levels, mitochondrial membrane potential, and lipid peroxidation in chondrocytes. At the same time, the expression levels of proinflammatory markers (IL-1β, IL-6, and COX-2) as well as the extracellular matrix degrading enzymes (ADAMTS-5 and MMP13) were downregulated, indicating effective antioxidant, anti-inflammatory, and anticartilage degradation effects. Notably, miR/IrO 2 @ZIF-8 was able to deliver IrO 2 nanoparticles and antagomiR-181a to the cartilage tissue at a depth of up to 1.5 mm, thus solving the problems of poor permeability and difficult retention of drugs in cartilage tissue. This further improves the synergistic therapeutic effect on OA by inhibiting cartilage degradation. The combination of MOF-encapsulated IrO 2 nanozymes with antagomiR-181a has an excellent therapeutic effect on OA, offering a promising translational medicine paradigm.
研究领域:
纳米技术
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药学
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生物医学工程
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骨科
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF CHEMICAL RESEARCH
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2024
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IF 1
Lei Yang,Tangxuan Xu,Chenghao Li,Yuezhu Yang,Jing Huang
The zinc(II) bis-(8-hydroxyquinoline) (Znq2) has excellent photoluminescence properties, and its fluorescence emission can be significantly quenched by Fe3+ in water. To accelerate the detection response of Znq2 to Fe3+, a luminescent metal–organic framework Znq2@ZIF-8 based on guest molecular luminescence was constructed by growing zeolite imidazolate framework-8 (ZIF-8) on the outer surface of Znq2. The results show that the prepared Znq2@ZIF-8 has an octahedral core–shell structure, a particle size of approximately 1–3 μm, an enhanced specific surface area of 1105.41 m2 g−1, and with a stable green luminescence at 495 nm. A fluorescence analytical method was developed for the detection of Fe3+ in water, the correlation coefficients were significant in the Fe3+ concentration range of 0–600 μmol L−1, and the limit of detection was as low as 3.89 μmol L−1. The spiked recoveries of tap water samples demonstrated that the method could be applied to practical applications. The mechanism of fluorescence detection is that Fe3+ participates in the competitive coordination of Znq2@ZIF-8 metal centers, leading to the collapse of the crystal structure, meanwhile, Fe3+ produces a certain degree of competitive absorption of the excitation light of Znq2@ZIF-8. This method was applied for the detection of Fe3+ in water with good selectivity, anti-interference ability, and has the potential to be used as a rapid detection method.
研究领域:
分析化学
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材料科学
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环境科学
✓ 已验证
DOI
高影响因子
MATERIALS LETTERS
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2019
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IF 3.019
Fei-Fei Wang,Zan Liu,Zhi-Lin Cheng
In this study, the zeolitic imidazolate frameworks-8 (ZIF-8) with nano- and micro-sized morphologies was successfully fabricated by solvothermal method. The dispersibility of as-obtained ZIF-8 in oil was studied. As an application, the tribological behavior of the as-obtained ZIF-8 in the based oil was investigated. The nano- and micro-sized morphologies of as-obtained ZIF-8 were conductive to reduce the friction coefficient and wear, and raise the carrying capacity in the base oil. In addition, the friction reducing mechanism was proposed.
研究领域:
材料科学
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摩擦学
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化学工程
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
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2021
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IF 9.229
Yajian Li,Ding Yuan,Qian Geng,Xue Yang,Huizhi Wu,Yuze Xie,Liming Wang,Xin Ning,Jinfa Ming
Herein, a unique hierarchically structured composite nanofiber membrane, consisting of a zeolitic imidazolate framework-8-embedded polyethersulfone (PES@ZIF8) fiber layer and a polysulfonamide/polyethersulfone (PSA/PES) fiber layer, was successfully developed to cope with the complex environments during the actual filtration/separation process and overcome the conflict between high filtration efficiency and low air pressure resistance. Due to the advantages of the synergistic effect of multicomponents and the bi-layer hierarchical structure, the integrated PES@ZIF8–PSA/PES filter possesses an extremely high air filtration efficiency (up to 99.986%) under a very low pressure drop (only 15 Pa), superior PM0.3 purification capacity (close to 99.95%), long-term recycling ability for purifying real smoke PM2.5 from >800 to <10 μg/m3, extremely high temperature resistance (exceed 200 °C), flame retardancy, good chemical stability, satisfactory transmittance, and robust self-cleaning ability. Apart from these, it achieves effective separation of oil–water mixtures and oil–water emulsions as a result of selective wettability including hydrophobicity and superoleophilicity. In particular, the PES@ZIF8–PSA/PES nanofiber membranes maintain outstanding air filtration and oil/water separation properties under the high temperature or strong acid/alkali conditions. This special comprehensive performance gives the PES@ZIF8–PSA/PES-based filtration/separation membranes a wider application prospect ranging from environmental governance to individual protection and industrial security.
研究领域:
材料科学
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环境科学
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化学工程
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
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2021
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IF 9.229
Jia Wang,Yinghui Xu,Hongqiang Qu,Haiyun Ma,Ran Chang,Jing Ma
Delicately regulating the distribution morphology of a filler is an effective strategy to promote the separation performance of mixed matrix membranes (MMMs). Herein, we describe a highly permeable metal–organic framework (MOF)-based MMM comprising vertically aligned ZIF-8 (V-ZIF-8) and polysulfone (PSF). The V-ZIF-8 is distributed uniformly within the PSF matrix. With this unique distribution morphology of ZIF-8, the shortest gas transport pathways are formed in the membrane. Meanwhile, the molecular-sieving pores of ZIF-8 can allow CO2 to pass through and crowding out N2. The obtained V-ZIF-8/PSF membrane shows a high CO2 permeability of 89.7 Barrer and a CO2/N2 selectivity of 30.0 that is stable over a period of 50 h. The CO2 permeability is enhanced about 11.8 times than that of the pure PSF membrane. The results prove that the vertically aligned distribution morphology of an MOF in a polymer matrix is an effective method to improve the separation performance of a membrane, providing a new concept for designing more advanced membranes.
研究领域:
材料科学
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化学工程
✓ 已验证
DOI
PubMed
高影响因子
Journal of Environmental Sciences
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2025
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IF 6.3
Shuai Dou,Qi-Jun Zhang,Peng Wu,Hui-Wen Huo,Lu-Bin Zhong,Yu-Ming Zheng
A novel hierarchical porous metal-organic framework (MOF)-based hollow carbon nanofiber mat (CNFM) was prepared through a facile electrospinning process followed by carbonization. Two immiscible polymers, polyacrylonitrile/polymethyl methacrylate (PAN/PMMA), and porous zeolitic imidazolate framework-8 (ZIF-8) particles were selected as components for the electrospinning suspension. The resulting PPZ-CNFM-1-2-2 (PAN:PMMA:ZIF-8 = 1:2:2, mass ratio) exhibited a hollow tubular structure with uniformly distributed dense hollow-spheres on the tube walls. The obtained CNFM possessed a high Brunauer-Emmett-Teller specific surface area ( S BET ) of 1696 m 2 /g and total pore volume of 2.74 cm 3 /g, which are comparable to those achieved by traditional physical or chemical activation methods. This MOF-based CNFM demonstrated excellent adsorption performance towards ciprofloxacin (CIP), exhibiting a high static adsorption capacity of approximately 600 mg/g and achieving adsorption equilibrium withing only 1 h. The exceptional adsorption capacity can be attributed to its high S BET and abundant pores that accommodate CIP molecules, while the rapid adsorption rate is facilitated by the presence of hollow-sphere and hollow tubular structures in the carbon nanofibers. Furthermore, the study revealed the significant contributions of pore-filling effect during the adsorption process. Fixed-bed experiments confirmed that this MOF-based hollow CNFM holds great potential for large-scale applications in purifying CIP-contaminated water.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Pharmaceutical Analysis
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2025
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IF 8.9
Lingyun Fu,Shidie Tai,Jiajia Liao,Youqi Du,Guangqiong Zhang,Die Guo,Xingmei Chen,Tian Zheng,Xiaoxia Hu,Wenbing Yao,Ling Tao,Xueting Wang,Yini Xu,Xiangchun Shen
Vascular endothelial senescence is an important pathophysiological factor in the development and exacerbation of cardiovascular health problems linked to diabetes mellitusn (DM). Accumulating evidence confirms that 1,8-cineole has multiple pharmacological properties, including anti-inflammatory, anti-microbial, and antioxidant activities. We investigated whether 1,8-cineole could ameliorate cardiovascular diseases and endothelial dysfunction, as the pharmacological properties and mechanism of diabetic vascular ageing remain unknown. Our results revealed notable senescence biomarkers in both in vivo and in vitro models. Treatment with 1,8-cineole alleviated lipid profiles and vascular senescence in mice with DM. Additionally, bioinformatics analysis suggested that peroxisome proliferator-activated receptor-γ (PPAR-γ) plays a crucial role in DM and ageing. We confirmed the binding capacity PPAR-γ with 1,8-cineole. Accordingly, experiments with the PPAR-γ agonist rosiglitazone, the PPAR-γ inhibitor GW9662, and PPAR-γ siRNA were performed to validate the pharmacological characteristics of 1,8-cineole. Finally, we clarified that 1,8-cineole can directly target PPAR-γ protein, as verified by cellular thermal shift assay, drug affinity responsive target stability, and surface plasmon resonance analyses. Taken together, these results provide the first evidence that 1,8-cineole ameliorates DM-induced vascular endothelial ageing via stabilising PPAR-γ protein by promoting deubiquitination at the Lys-466 site.
研究领域:
药理学
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心血管疾病
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分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Fuel Cells
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2022
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IF 2.948
Yanqi Hao,Lin Ge,Siew Hwa Chan
Looking for non-noble metal catalysts with low cost, high activity, and high stability to replace platinum in oxygen reduction reaction (ORR) has aroused great concern. According to previous studies, Fe-N x /C material is one of the most promising non-noble metal catalysts for ORR. In this study, new Fe-N x /C material was synthesized by introducing CeO 2 and Fe 3 O 4 nanoparticles into a Fe-N x /C material derived from ZIF-8 as precursors. The new material was called CeO 2 -Fe 3 O 4 @Fe-N/C catalyst and the activity of the catalyst was found to be significantly improved in 0.1 mol L −1 KOH. The half-wave potential of CeO 2 -Fe 3 O 4 @Fe-N/C (0.892 V) is higher than that of Pt/C by 67 mV. In the stability test, the half-wave potential of CeO 2 -Fe 3 O 4 @Fe-N/C was only reduced by 4 mV after 5,000 cycles. The high performance is attributed to the introduction of CeO 2 and Fe 3 O 4 , which gives CeO 2 -Fe 3 O 4 @Fe-N/C enhanced electrocatalytic activity and long-term stability. This approach makes CeO 2 -Fe 3 O 4 @Fe-N/C a promising candidate for cathode catalysts in renewable energy conversion devices.
研究领域:
材料科学
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能源化学
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
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IF 5.518
Ting Zhang,Li Xia Chen,Yun Qian Zhang,Qian Jiang Zhu,Ying Huang,Zhu Tao
The outer surface interaction of cucurbit[ n ]urils (Q[ n ]s) is an important supramolecular interaction that results from the positive electrostatic potential on the outer surface of Q[ n ]s. It cannot only result in the formation of various novel Q[ n ]-based supramolecular frameworks, but can also lead to clustering emission of Q[ n ]s. In this work, three different Q[8]-based supramolecular frameworks, assembled through the outer surface interaction of Q[ n ]s (OSIQ), were prepared according to the literature. The solid-state clustering-triggered emission (CTE) characteristics of the frameworks were also determined. Moreover, investigation of their adsorption properties showed that the solid-state CTE of the three Q[8]-based supramolecular frameworks was quenched in the presence of certain chemicals and that they exhibited high selectivity for pyridine. Framework B exhibited the highest adsorption of pyridine.
研究领域:
超分子化学
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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2026
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IF 1.7
Gao Shan,Wang Li-peng,Gu Dongxu
With the rapid growth of nuclear power generation and fuel processing, the treatment of nuclear industry wastewater has become a major problem, and if not handled properly, it will pose a potential threat to the ecological environment and human health. A novel ZIF-8@Balsa wood composite aerogel was synthesized for efficient uranium adsorption from water. The material exhibited a maximum capacity of 399 mg·g⁻ 1 at pH 4, following the Langmuir model and pseudo-second-order kinetics. It demonstrated excellent selectivity, reusability over four cycles, and effective performance in complex water matrices. The composite presents a sustainable adsorbent for uranium recovery in environmental remediation.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）