JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Wu-Di Zhang,Xiao-Ye Ge,Kang-Kang Zhao,Qiang Zhang,Fu-Hu Cao,Xingyu Guo,Chuan-Ling Zhang
Tellurides are promising anode materials for lithium-ion batteries (LIBs) because of their high electronic conductivity and energy density. However, the slow kinetics and poor structural stability lead to decreased electrochemical performance. In this work, by utilizing the interface magnetization mechanism and assembly effect, high-performance CoTe 2 nanoparticles encapsulated hierarchical N -doped porous carbon nanofibers were rationally designed and prepared (ES-CoTe 2 @NC) via facile tellurization of one-dimensional (1D) ZIF-67 nanocube assemblies. Benefiting from the synergistic effects of the unique structure and component, the ES-CoTe 2 @NC anode exhibits a high reversible capacity of 1020 mAh/g at 0.1 A/g after 200 cycles, along with excellent long-term cycling stability, retaining a capacity of 780 mAh/g at 1 A g −1 after 500 cycles. Notably, the ES-CoTe 2 @NC anode retains a remarkable capacity of 502 mAh/g even after 1000 cycles at a high current density of 5 A g −1 , highlighting its exceptional cycling stability. Besides, the Full cell coupled with LiFePO 4 cathode delivers a high reversible capacity of 151.1 mAh g −1 at 0.1 A g −1 with stable cycling performance. The kinetics analysis reveals that the ES-CoTe 2 @NC anode has high pseudocapacitive properties, high electronic conductivity, and fast Li + diffusion capability. Moreover, the ex-situ characterization clarifies the conversion reaction mechanism of ES-CoTe 2 @NC. This work provides a facile but effective way to construct high-performance CoTe 2 -based electrodes.
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JOURNAL OF MEMBRANE SCIENCE
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2024
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IF 8.4
Changhai Fan,Zhengwang Xia,Haiqian Lian,Luogang Wu,Eryue Song,Jingxian Hua,Li Shen,Rujing Hou,Yichang Pan,Weihong Xing
The ZIF-8 membrane has emerged as a promising candidate for C 3 H 6 /C 3 H 8 separation. However, the feasibility of ZIF-8 membranes for applications has rarely been investigated with gas provided directly by the industry sector. Herein, the C 3 H 6 /C 3 H 8 mixture collected from the backend of the Hydrogen Peroxide to Propylene Oxide (HPPO) process was applied as feed gas to examine the separation performance of tubular ZIF-8 membranes. The membranes exhibited excellent separation performance and long-term stability under 9 bar and 50 °C. Noticeably, upon scaling up to a membrane area of 452.16 cm 2 by connecting six three-channel modules in series (multi-step membrane), its separation performance satisfied the C 3 H 6 circulation requirements during the HPPO process (purity ≥97.5 % and recovery rate ≥85 %). Furthermore, a simulation of membrane operation under industrial working conditions (22 bar and 56.3 °C) was performed. By fixing the separation factor at 15, a minimum membrane area of 800 m 2 met the requirements at the cost of membrane permeance with 120 GPU. The corresponding economic calculation indicated a maximum of 91.8 % annual capital cost saving compared with the distillation process, paving the way for the practical application of membranes.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2024
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IF 7.7
Jia Gao,Jing Ren,Hanjie Ye,Wenhui Chu,Xuankai Ding,Lingzhi Ding,Yongqian Fu
Angiogenesis is pivotal for osteogenesis during bone regeneration. A hydrogel that promotes both angiogenesis and osteogenesis is essential in bone tissue engineering. However, creating scaffolds with the ideal balance of biodegradability, osteogenic, and angiogenic properties poses a challenge. Thymosin beta 10 (TMSB10), known for its dual role in angiogenesis and osteogenesis differentiation, faces limitations due to protein activity preservation. To tackle this issue, ZIF-8 was engineered as a carrier for TMSB10 (TMSB10@ZIF-8), and subsequently integrated into the self-assembled sericin hydrogel. The efficacy of the composite hydrogel in bone repair was assessed using a rat cranial defect model. Characterization of the nanocomposites confirmed the successful synthesis of TMSB10@ZIF-8, with a TMSB10 encapsulation efficiency of 88.21 %. The sustained release of TMSB10 from TMSB10@ZIF-8 has significantly enhanced tube formation in human umbilical vein endothelial cells (HUVECs) in vitro and promoted angiogenesis in the chicken chorioallantoic membrane (CAM) model in vivo . It has markedly improved the osteogenic differentiation ability of MC 3 T3-E1 cells in vitro . 8 weeks post-implantation, the TMSB10@ZIF-8/ Sericin hydrogel group exhibited significant bone healing (86.77 ± 8.91 %), outperforming controls. Thus, the TMSB10@ZIF-8/Sericin hydrogel, leveraging ZIF-8 for TMSB10 delivery, emerges as a promising bone regeneration scaffold with substantial clinical application potential.
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ACS Applied Materials & Interfaces
·
2024
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IF 8.3
Yimeng Sun,Yifan Zhou,Liping Chen,Dandan Wang,Haiyan Liu,Weihai Ni,Xinjian Feng
Oxidase enzyme-based electrochemical bioassays have garnered considerable interest due to their specificity and high efficiency. However, in traditional solid–liquid diphase enzyme electrode systems, the low solubility of oxygen and its slow mass transfer rate limit the oxidase catalytic reaction kinetics, thereby affecting the bioassay performance, including the detection accuracy, sensitivity, and linear dynamic range. ZIF-8 nanoparticles (NPs) possess hydrophobic and high-porosity characteristics, enabling them to serve as oxygen nanocarriers. In this work, we constructed a solid–liquid–air triphase enzyme electrode by encapsulating ZIF-8 NPs within an oxidase network. Hydrophobic ZIF-8 NPs can provide a rapid and sufficient supply of oxygen for the oxidase-catalyzed reactions, which enhances and stabilizes the kinetics of oxidase-catalyzed reactions. This approach eliminates the issue of “oxygen deficiency” at the traditional solid–liquid diphase interface. Consequently, the triphase enzyme electrode exhibits a 12-fold higher linear detection range than the diphase system and possesses good detection accuracy in electrolytes even with fluctuating oxygen levels. This work proposes a novel approach to construct triphase reaction systems for addressing the gas deficiency problem in heterogeneous catalysis.
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RSC Advances
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2024
·Vol. 14
·期 14
·9996-10003
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IF 3.9
Zijie Wei,Cuifeng Jiang,Jinshan Wang,Yue Chen
Metal organic framework (MOF)-derived nanostructures display remarkable characteristics and have broad application potential. Os@ZIF-8 nanocomposites were prepared by a depositional method. The Os nanoparticles distributed on the surface of ZIF-8. The nanocomposites displayed enhanced peroxidase-like activity with smaller Km for both 3,3′,5,5′-tetramethylbenzidine (TMB) and H2O2 compared to Os NPs due to the confinement effect and large surface area that ZIF-8 provided. From the average reaction rate constants obtained from three different temperatures, the activation energy values were determined. The kinetic data indicated that the Os@ZIF-8 NCs are catalytically more active than Os NPs. In addition, quantitative measurement of Hg2+ was performed based on the formation of Os–Hg alloy. Os@ZIF-8 NCs had a wide detection range between 0 μM and 71.43 μM for Hg2+ with a limit of detection (LOD) of 2.29 μM. Using a MOF with a large surface area to load Os nanoparticles to achieve enhanced nanozyme activity is the novelty of this work.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Taotao Huo,Xiaoyu Shan,Ziyi Wang,Jiaqi Song,Liang Shao,Yuquan Bai,Xianyi Yu,Qingyuan Yang,Guangying Li,Rongqin Huang
The particle size of ZIF-8 significantly influences its benefits in drug delivery and release, thereby determining therapeutic efficacy. Here, we investigate the correlations between drugs and ZIF-8 crystallization and discover that emodin can function as a binding template for zinc ions to accelerate nucleation processes via reducing the Gibbs free energy, while also serving as a capping agent on the {100} facets to regulate crystal growth. These dual roles, based on hydroxyl-substituted anthraquinone structure of emodin, can govern ZIF-8 crystallization, enabling the precise control over both size and morphology of emodin-loaded ZIF-8 (E@Z). Consequently, by regulating the feed ratio of emodin, E@Z ranging in size from 900 nm to 80 nm are successfully prepared. The therapeutic outcomes demonstrate that, in addition to enhancing the antibacterial effect of emodin, size-dependent degradation properties of E@Z enable a controlled release of emodin within tumor, ultimately amplifying its anti-tumor efficacy. Additionally, other natural anthraquinones compounds with structures similar to emodin also possess this ability to regulate ZIF-8 size. Our study provides a fundamental framework for the advancement of anthraquinone drugs and their potential applications in the field of ZIF-8-based size-dependent nanotherapeutics.
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CRYSTENGCOMM
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2025
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IF 2.6
Chonglin Wang,Peng Gao,Xiang Yao,Xiaohui Sun,Hong Du
Metal-organic framework (MOF) materials have been extensively utilized as catalysts for the oxygen evolution reaction (OER) due to their remarkable properties. To enhance electrocatalytic performance, the modifying MOF materials has emerged as a significant research area. In this study, we synthesized MIL-100(Fe), and MOF-74(Co) MOF materials on the surface of NiCo-ZIF using 2,5-dihydroxyterephthalic acid as the ligand , successfully obtaining a ternary MOFs composite material designated as NiCo-ZIF@MM. Experimental results demonstrated that the NiCo-ZIF@MM composite formed a heterogeneous structure, which significantly enhanced electron transport efficiency and catalytic activity. Additionally, this novel material exhibits a larger electrochemical active surface area and excellent stability. Notably, the overpotential of NiCo-ZIF@MM is reduced to 190 mV at a current density of 10 mA/cm2. This study not only achieves effective modification of ZIF materials but also provides a new strategy for the development of highly efficient and stable MOF-based OER catalysts.
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ACS Applied Materials & Interfaces
·
2025
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IF 8.2
Yuanshu Weng,Jiannan Li,Dongna Xie,Song Peng,Ying Wen,Jiale Wan,Dong Ma,Guowei Li,Wu Zhang
Periodontitis is initiated by bacterial biofilms, and the removal of plaque is critical in preventing the onset and progression of periodontal diseases, including gingival inflammation, periodontitis, and even alveolar bone resorption. Clinically, mechanical methods are commonly used to remove plaque and calculus. However, conventional methods struggle to access certain regions, such as deep periodontal pockets, root furcations, and dentinal tubules. In these cases, antimicrobial agents are required to eradicate residual pathogenic microorganisms. This study designed a dextran-coated ZIF-8-based composite material (Ce6@ZIF-8/Dex) to enhance biofilm penetration and photodynamic antibacterial efficacy against periodontal pathogens. The photosensitizer, chlorin e6 (Ce6), synergizes with zinc ions (Zn2+) from the zeolitic imidazolate framework 8 (ZIF-8) to achieve a combined antibacterial effect and reduce bacterial resistance to single antimicrobial agents. Dextran modification further improves the biofilm penetration capability of the ZIF-8 composite, enhancing its overall antibacterial efficiency. In vivo, Ce6@ZIF-8/Dex demonstrated excellent biocompatibility and antibacterial activity against Porphyromonas gingivalis and Streptococcus mutans. This study presents a promising antibacterial strategy for the prevention and treatment of periodontitis.
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INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
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IF 5.4
Yan Liu,Xingnian Duan,Xiaoyu Qiu,Chengjia Luo,Xixiang Liu,Jianmei Cen
Developing efficient electrocatalysts is very important for hydrogen production. These catalysts help speed up the oxygen evolution reaction (OER). This is crucial for solving energy shortages and reducing pollution. Herein, Co-doped NiMoO 4 (Co-NiMoO 4 /NF) was successfully prepared by pyrolysis of ZIF-67 via an impregnation-hydrothermal strategy and as a catalyst for oxygen evolution reaction in alkaline solutions. The nanorod-nanosheet structure of Co-NiMoO 4 /NF provides large surface area and abundant active sites, while cobalt doping modulates the electronic structure of NiMoO 4 , which is conducive to the enhancement of the electrochemical activity of catalysts. Density-functional theory calculations further demonstrated that Co-doped Co-NiMoO 4 /NF was more favorable to the adsorption and stabilization of *OOH intermediates than NiMoO 4 /NF. As a result, Co-NiMoO 4 /NF exhibits excellent OER performance with an overpotential of 199 mV at 10 mA cm −2 and remains stable after 200 h of continuous testing under current density conditions of 10 and 500 mA cm −2 . The remarkable electrocatalytic performance of Co-NiMoO 4 /NF highlights its strong potential as an efficient catalyst for sustainable energy conversion systems.
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JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2025
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IF 6
Xin-Ran Shi,Yan Wei,Miao Chang,Hua Zou,Jie-Xin Wang
ZIF-8 as a typical metal–organic framework (MOF) is regarded as a promising adsorbent owing to its ultra-high specific surface area and well-defined porous architecture. Smaller-sized MOFs with more exposed active sites are conducive to the rapid and efficient adsorption of molecules. However, achieving precise nanoscale control of MOF particle sizes remains a challenge. Herein, we report a facile method to prepare uniform ZIF-8 nanoparticles with controllable sizes of 20–120 nm by high gravity technology in the rotating packed bed (RPB) reactor. Compared with the conventional stirred tank reactor (STR), the products prepared by RPB showed narrower size distribution and smaller particle size, with an average reduction of 30 %. The as-synthesized ZIF-8 nanoparticles demonstrated a pronounced size-dependent adsorption behavior for tetracycline in aqueous solutions. Particularly, 20 nm ZIF-8 nanoparticles exhibited the highest adsorption capacity of about 217 mg g −1 , surpassing both micro-sized ZIF-8 (189 mg g −1 ) and previously reported ZIF-8 and its composites. Moreover, the effects of adsorbent dosage, pH, temperature and coexisting ions on the adsorption performance were also investigated. A rational adsorption mechanism of TC adsorption over ZIF-8 nanoparticles was proposed. These findings are of great significance for selecting nano-absorbents with the appropriate size to achieve optimal adsorption in real-world use.
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COLLOIDS AND SURFACES B-BIOINTERFACES
·
2025
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IF 5.6
Fuyan Zhang,Dilong Zhang,Xueyan Ran,Mingzhu Xiao,Lu Gan,Xiujie Yang,Yong Xie,Qi Sun
The pervasive accumulation of tetracycline (TC) in aquatic ecosystems poses severe ecological and health threats, yet conventional technologies rarely achieve reliable removal under continuous-flow conditions. To overcome the intrinsic brittleness, aggregation and leaching of powdered ZIF-67, this study developed novel alginate-encapsulated MOF composite gel spheres (ALG/ZIF-67) via in-situ crystallization. This simple strategy generates hierarchical pores, anchors Co-N active sites and imparts mechanical robustness without sacrificing adsorption kinetics. Comprehensive characterization confirmed a hierarchical porous structure with uniformly dispersed ZIF-67 nanoparticles. Batch experiments demonstrated exceptional TC adsorption (89.45 mg/g), following pseudo-second-order kinetics and the Langmuir isotherm, indicating chemisorption-driven monolayer adsorption via π–π interactions, hydrogen bonding, and coordination with unsaturated Co²⁺ sites. Fixed-bed applications showcased remarkable stability, maintaining > 80 % TC removal over 6 h with negligible ZIF-67 leaching. The alginate matrix enhanced mechanical robustness and recyclability, mitigating MOF limitations in flow systems. This work provides a scalable, eco-friendly adsorbent for antibiotic-laden wastewater, bridging laboratory innovation and industrial deployment while addressing persistent contaminant challenges.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
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IF 5.4
Hong-Hong Wang,Jia Liu,Juan Chen
With the increasing demand for lipase inhibitors and novel anti-obesity therapies, it is of paramount importance to screen Candida rugosa lipase (CRL) inhibitors from traditional Chinese medicines (TCMs) as anti-obesity drugs. Immobilized enzyme screening technology combined with capillary electrophoresis has become a powerful tool for the exploration of CRL inhibitors due to its easy separation characteristics and high separation efficiency. In this work, tannic acid (TA)-modified ZIF-67 was adopted as a readily available carrier for CRL immobilization. ZIF-67 was fabricated by mixing Co(NO 3 ) 2 ·6 H 2 O with 2-methylimidazole under ambient conditions. TA was subsequently introduced to chelate the surface metal ions of ZIF-67, yielding a ZIF-67/TA hybrid carrier. CRL was then immobilized onto the ZIF-67/TA via physical adsorption. The immobilization of CRL on TA-modified ZIF-67 minimally alters its conformation, enabling 98.7 % recovery of enzymatic activity. Additionally, it exhibits a high CRL loading capacity of 36.5 mg·g⁻¹ determined by the Bradford protein assay. The ZIF˗67/TA/CRL demonstrated notable improvements in thermal resistance, operational durability, recyclability, and storage performance. Its calculated Michaelis constant ( K m ) was determined to be 1.41 mM, while the half-maximal inhibitory concentration (IC 50 ) of orlistat against the system was measured to be 19.74 µM. Finally, capillary electrophoresis was employed to evaluate CRL inhibitions across 18 TCMs, identifying Schisandrae Chinensis Fructus as the most potent CRL inhibitor. This investigation not only presents an innovative strategy for discovering lipase inhibitors and prospective anti-obesity agents, but also underscores the therapeutic potential of TCMs in metabolic disorder intervention.
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