RENEWABLE ENERGY
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2024
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IF 9
Wenli Zhang,Jifei Liu,Hongwei Gu,Cheng Pan,Yifei Long,Qunpeng Cheng,Guozhi Fan
The metal-organic framework materials ZIF-8 and UiO-66-NH 2 , synthesized by hydrothermal methods, were characterized in detail and combined to catalyze the transfer hydrogenation of 5-hydroxymethylfurfural (5-HMF) to 2,5-di(hydroxymethyl)furan (2,5-DHMF) using isopropanol as the hydrogen source. The ZIF-8/UiO-66-NH 2 catalyst mixture exhibited abundant Lewis acid-base sites and a hierarchical multiporous structure with a large specific surface area (564.0 m 2 /g). The conversion of 5-HMF reached 98.2 %, and the selectivity and yield of 2,5-DHMF were 96.2 % and 94.5 %, respectively. The recycling performance of ZIF-8/UiO-66-NH 2 was also investigated, and the conversion of 5-HMF and selectivity of 2,5-DHMF significantly decreased to 78.4 % and 79.1 % in the second run, respectively. The loss of −NH 2 groups was found to be the main reason for the decrease in activity. However, the catalytic activity of the recovered catalyst can be almost completely restored by the addition of a small amount of fresh UiO-66-NH 2 and ZIF-8, and the conversion of 5-HMF and selectivity of 2,5-DHMF were increased to 89.4 % and 95.5 %, respectively. In the proposed reaction mechanism, Lewis acid-base sites play important roles and exhibit a synergistic catalytic effect in the selective conversion of 5-HMF to 2,5-DHMF.
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高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Yuqing Chai,Xuan Zhou,Gang Yuan,Wei Wang,Jingjing Zhang
ZIF-67-C 5 H 4 IN/MWCNT composites were successfully synthesized by doping 4-Iodopyridine (C 5 H 4 IN) and integrating multi-walled carbon nanotubes (MWCNT) IN cobalt dimethylimidazole (ZIF-67) via solvothermal and self-assembly methods. The composite was drop-cast on a glassy carbon electrode (GCE) for non-enzyme glucose detection IN alkaline media. The incorporation of C 5 H 4 IN modulated the three-dimensional metal-organic framework (MOF) structure of ZIF-67 and improved the molecular permeability, whereas the MWCNTs improved the electrical conductivity. As a result, the sensor offers excellent performance with a low limit of detection (LOD) of 0.78 μM, a linear range of 0.18–1.98 mM, and a sensitivity of 1033 μA mM −1 cm −2 . In addition, the sensor offers excellent stability, reproducibility and selectivity for common interferences.
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高影响因子
ELECTROCHIMICA ACTA
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2025
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IF 5.6
Junchun Guo,Li Xu,Lian Ou,Jinmi Zhang,Jianlong Li,Hongmei Huang,Xiaoli Xiong
As a persistent industrial pollutant, the accurate detection of nitrobenzene (NB) holds critical importance in environmental monitoring and health risk mitigation. Recently, the strategy of using metal-organic frameworks (MOFs) as self-sacrificial precursors/templates to design electrocatalysts with unique structures and excellent electrochemical sensing properties has been regarded as a promising approach. Herein, using ZIF-8 supported on hollow carbon spheres as a self-sacrificing model, a hierarchical electrocatalyst (N HCS@HSC) with a dual - hollow carbon nanostructure composed of N-doped hollow carbon spheres (N HCS) and fishnet-like nanonesh (HSC) was prepared. Benefiting from the interconnected hollow channels in the carbon nanomesh, accelerated electron transfer is achieved, with N-doping further engineering the catalyst's local charge density to optimize active sites. The micro-mesoporous ZIF-8-derived carbon is not only beneficial to the selective recognition of NB, but also enhances the electrically conductive of the catalyst and greatly alleviates the aggregation of active sites. The N HCS@HSC sensing platform demonstrates a broad dynamic response range (0.3–254 μM) with a low detection threshold (0.042 μM) toward NB, coupled with remarkable selectivity and long-term operational stability, which has important implications for human health and environmental safety.
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高影响因子
ADVANCED POWDER TECHNOLOGY
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2025
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IF 4.2
Bingyan Li,Yinglin Yan,Xingsheng Zhang,Bing Ren,Zhiying Meng,Rongfu Xu,Yiming Zou,Qijiu Deng,Wei Yu,Xianhui Wang,Nana Zhao,Lisheng Zhong,Rong Yang,Yunhua Xu
Although lithium-sulfur (Li-S) batteries have broad market prospects owing to their high theoretical energy density and potential cost-effectiveness, their practical application still faces serious shuttle effects of polysulfides (LiPSs) and sluggish redox kinetics. In this study, a cobalt-organic framework, ZIF-67, decorated balsa wood matrix (ZIF-67/BW) was utilized to prepare a cobalt-nitrogen-encapsulated carbon host (Co-N/CBW) with dual-stage-order microchannels for self-standing cathodes in high-performance Li-S batteries. The first-stage-order microchannels inherited from wood provided fast transmission paths for electrolyte. The ZIF-67 derived Co-N carbon particles with the second-stage-order microchannels provided strong chemical adsorption and enhanced conversion kinetics for LiPSs. Owing to these advantages, the Co-N/CBW/Li 2 S 8 cathode exhibited a high initial discharge specific capacity of 1213.1 mAh g −1 at 0.1 C and good cycling stability at 0.5 C (590 mAh g −1 after 200 cycles). By increasing the sulfur loading to 5.97 mg cm −2 , the cathode maintained a remarkable area-specific capacity (3.42 mAh cm −2 ) after 100 cycles. This work proposes a strategy for the cooperation of the catalyst and matrix, providing more possibilities for the development of Li-S batteries.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
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IF 6.3
Junzhou Men,Yi Zheng,Chen Luo,Hui Xian,Yuxia Zhang,Yating Wang,Tao Jiang
Defect engineering is crucial for optimizing the band structures and charge separation of photocatalysts. Herein, the quantity and distribution (core/shell) of organic ligand defects in leaf-shaped zeolite imidazole framework (ZIF-L) composites were modulated via a multi-step method. VZ-12@ZIF-L (with 12 % 1-vinylimidazole in the core) exhibited the highest carrier separation efficiency and the strongest driving force for the hydrogen evolution reaction (HER), achieving a hydrogen evolution rate of 443.19 μmol·h⁻¹ ·g⁻¹ . This rate is 1.81 times that of VZ-25@ZIF-L (with a high defect quantity) and 1.40 times that of ZIF-L@VZ-12 (with defects in the shell). Mechanistically, core defects facilitated the transport of photogenerated carriers, while shell defects narrowed the band gap. Notably, the impact of carrier transport capacity on photocatalytic activity was more significant than that of light absorption. This study provides new insights for the design of efficient defect-engineered metal-organic frameworks (MOFs).
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高影响因子
ACS Applied Polymer Materials
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2025
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IF 4.7
Yanyan Zheng,Yueyue Xie,Xu Dong,Shulin Shen,Gensuo Zheng,Jiaqi Weng,Qinying Yan
Biofilms, which are dense bacterial aggregates that form protective adhesion layers on surfaces, are associated with chronic wound infections, severe acne, and various other bacterial infection sites. However, the increasing antibiotic resistance of bacteria within biofilms and the limited penetration capacity of conventional treatments pose significant therapeutic challenges. To address these issues, we engineered a freeze-drying microneedle system integrating indocyanine green-loaded ZIF-8/hyaluronic acid nanoparticles (ICG@ZIF@HA NPs) and graphene oxide (GO) for dual-modal phototherapy. Notably, the microneedles demonstrated robust mechanical strength, enabling penetration through 140 μm-thick Staphylococcus aureus biofilms. Subsequently, the disruption of the biofilm’s structural integrity facilitated the release of ICG@ZIF@HA NPs from the microneedle tips into deeper biofilm regions. Moreover, the nanoparticles exhibited pH-triggered release kinetics, with over 80% of ICG released at pH 5.5 within 2 h, and generated reactive oxygen species (ROS) under 808 nm near-infrared (NIR) irradiation. Meanwhile, the GO in the backing provided localized hyperthermia, reaching 55 °C within 500 s under NIR exposure. By combining ROS generation and bacterial membrane disruption, the microneedle system achieved a synergistic antimicrobial effect, effectively inhibiting bacterial growth and eliminating biofilms under NIR irradiation. Thus, this study establishes a robust foundation for integrating antimicrobial therapy with microneedle technology, offering a safer and more efficient strategy for biofilm eradication.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2025
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IF 9
Yixin Pan,Bo Sun,Yingying Zhou,Jian Jiao,Liping Deng,Xiaowu Dong
This study reported a Ni 0 @ZIF-8 nanocomposite synthesized via co-precipitation that synergistically integrated the high adsorption capacity of ZIF-8 with the redox activity of zero-valent nickel (Ni 0 ) for efficient uranium(VI) extraction. The composite with an optimized 1:1 ZIF-8:Ni 0 molar ratio achieved an exceptional adsorption capacity of 830.5 mg/g. Kinetic and thermodynamic analyses confirmed chemisorption-dominated monolayer adsorption following pseudo-second-order kinetics (R 2 > 0.999) and spontaneous endothermic behavior. Mechanistic investigations through spectroscopy and density functional theory (DFT) calculations revealed a dual-function mechanism that ZIF-8 facilitated U(VI) capture through electrostatic/coordination interactions, while Ni 0 mediated partial reduction of U(VI) to U(IV) via electron transfer, enhancing immobilization stability. Notably, only Pb 2+ , Cu 2+ , Cr 6+ , and organic ligands inhibited adsorption through redox competition and solution complexation. Comparative studies demonstrated minimal matrix interference-deionized water versus seawater systems exhibit merely 4.7 % deviation in adsorption efficiency at trace U(VI) concentrations (0.1–0.6 mg/L). Critically, direct uranium extraction from unprocessed natural seawater (ambient U: 4.27 μg/L) with only pH adjustment (5.0) achieves 86.02 % efficiency at ultra-low adsorbent dosage (0.001 g/L), yielding residual uranium concentrations of 0.597 ± 0.04 μg/L. By harmonizing adsorption and redox pathways, Ni 0 @ZIF-8 overcome limitations of conventional materials, establishing itself as a paradigm-shifting solution for uranium remediation in complex ionic matrices and real marine environments.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2025
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IF 9
Shiwei Tian,Yaqi Zhang,Qiankun Sha,Yixuan Wang,Xingxiang Zhang,Xuhuan Yan,Na Han
Polyphenylene sulfide (PPS) membrane materials have attracted significant attention for separating oily wastewater due to their remarkable separation precision and permeation capability. Nevertheless, the inherent hydrophobic characteristics result in a single wetting property, which restricts their broad applicability in treating diverse types of oily wastewater. In this study, the PPS/TA-PEI/CaAlg/ZIF-8 composite membranes exhibit outstanding under-liquid dual superlyophobicity, which were formed via constructing a composite coating containing polyphenol-polycation and calcium alginate (CaAlg) hydrogel, and assembling ZIF-8 nanocrystals with suitable surface chemistry. Through the solvent pre-wetting approach, the surface wettability of the PPS composite membranes can be flexibly transitioned between under-water superoleophobicity and under-oil superhydrophobicity, thus realizing on-demand separation of oily wastewater. It is noteworthy that the treatment efficiency of the PPS/TA-PEI/CaAlg/ZIF-8 composite membranes for the various oil-water mixtures (surfactant-free) and emulsions (stabilized by surfactants) attained greater than 98.1%. Meanwhile, the rapid transport capability of diverse types of oil-water emulsions can also be exhibited, with a permeance of 1652.4 L m -2 h -1 bar -1 for water-in-oil (W/O) emulsions and 2087.5 L m -2 h -1 bar -1 for oil-in-water (O/W) emulsions. In addition, the PPS composite membranes demonstrated outstanding anti-fouling capacity, recyclability, and switchable separation capacity. This work extended the utilization of the PPS membrane material in the controllable treatment of oily wastewater.
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
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2024
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IF 4.8
Yiwen Li,Shikuan Xu,Yangyang Zhang,Rui Du,Rong Li,Yanjun Xing
MimDES-ZIF-8 with rich active sites as positive charges and metal coordination sites were prepared based on imidazole based deep eutectic solvent (MimDES) using interface permeation method. 2-Methylimidazole (2-Mim) simultaneously acted as a hydrogen bond acceptor (HBA) in MimDES (hydrogen donner was 1,6-hexanediol) and an organic ligand in MimDES-ZIF-8, affecting the coordination of ZIF-8 during permeation. Four different zinc salt solutions (ZnCl 2 , Zn(NO 3 ) 2 ·6H 2 O, Zn(OAc) 2 ·2H 2 O, ZnSO 4 ·7H 2 O) were permeated into MimDES to obtain MimDES-ZIF-8 with different morphologies. All MimDES-ZIF-8 had higher Zn/N ration (>0.25), specific surface area and surface positive charges. The dye adsorption results indicated that MimDES-ZIF-8 showed high adsorption efficiencies for acid fuchsin (all exceeded 97.75 % under pH 7.5) and a fast adsorption rate (exceeding 93 % in 5 min and reaching equilibrium in 60 min). Among MimDES-ZIF-8, the adsorption capacity of ZIF-8-C was 4845.3 mg/g. After five cycles of adsorption, the AF removal efficiency of ZIF-8-C remained over 93.23 %. Moreover, ZIF-8-C also had good adsorption capacity for anionic dyes CR, cationic dyes MB and BB. The adsorption process aligned well with both the Langmuir model and the pseudo-second-order kinetic model. Based on FTIR, XPS, and electrostatic potential calculation, the adsorption mechanism was elucidated.
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高影响因子
ACS Applied Materials & Interfaces
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2019
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IF 8.456
Ya-Ting Qin,Hui Peng,Xi-Wen He,Wen-You Li,Yu-Kui Zhang
A multifunctional diagnosis and treatment integration platform is crucial in cancer treatments. Here, we show that by integrating Gd-doped silicon nanoparticles (Si–Gd NPs), chlorine e6 (Ce6), doxorubicin (DOX), zeolitic imidazolate framework-8 (ZIF-8), poly(2-(diethylamino)ethyl methacrylate) polymers (HOOC-PDMAEMA-SH), and folic acid–poly(ethylene glycol)–maleimide (MaL–PEG–FA) into one single nanoplatform by a self-assembly method, novel multifunctional MOFs (named FZIF-8/DOX–PD–FA) are synthesized with great biocompatibility and tumor targeting as well as pH responsiveness and no drug leakage for drug delivery. In the design, Si–Gd NPs and Ce6 embedded in the nanocomposites are used for magnetic resonance and fluorescence dual-modal imaging, respectively. DOX loaded by the FZIF-8/DOX–PD–FA porous structure is used for chemotherapy, while Ce6 is excited by near-infrared radiation (NIR) for photodynamic therapy. In addition, the pH-responsive ability of HOOC-PDMAEMA-SH to effectively prevent drug leakage is demonstrated by drug release studies in vitro. From the results of confocal microscopy imaging in vitro and fluorescence/magnetic resonance imaging in vivo, FZIF-8/DOX–PD–FA showed a targeting effect on MCF-7 cancer cells. More importantly, the results of treatment experiments on tumor-bearing mice showed that the tumor volume of the FZIF-8/DOX–PD–FA + NIR group is decreased the most compared to the original volume. Owing to the unique dual-modal imaging capability and excellent chemo-/photodynamic combinational cancer therapy effect, the present hybrid nanocarrier provides a new research platform for a new generation of theranostic nanoparticles.
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DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Chao Yang,Sining Yun,Jing Shi,Menglong Sun,Nosheen Zafar,Asim Arshad,Yongwei Zhang,Lishan Zhang
The elaborate design of electrode materials plays a critical role in developing high-performance supercapacitors. In the present work, a convenient avenue is adopted to adjust the supercapacitive behavior of carbon-based electrodes by incorporating transition metals (Co, Nb, Mo, and Fe) into Co/Zn-ZIF derived nitrogen-doped porous carbon (NDPC). The experiment results demonstrated that incorporating transition metal species tuned the microstructure, nanoporous textures, and hydrophilicities of as-prepared Co-NDPC and M/Co-NDPC (M = Nb, Mo, or Fe), which further tailored their supercapacitive performance. Owing to the higher surface area, abundant pores, and superior wettability of Nb/Co-NDPC sample, the corresponding electrode showed the highest specific capacitance of 293 F g −1 at 0.5 A g −1 with an outstanding capacitance retention of 82% at 20 A g −1 . All the electrodes displayed remarkable stability over 15,000 charge–discharge cycles. The first-principle density functional theory (DFT) calculations revealed that the superior capacitive behaviors of Nb/Co-NDPC electrode could be attributed to the uneven electrostatic potential surface and robust K + ion adsorption ability. This work provides an elaborate strategy for designing novel and high-performance electrode materials by adopting DFT calculations for supercapacitors.
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高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2019
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IF 3.218
Huanhuan Zhang,Xuan Cai,Hongli Zhao,Wenqian Sun,Zhenxing Wang,Minbo Lan
Developing nanomaterials as alternatives of enzymes is of great significance to realize qualification and quantitation of superoxide anion (O 2 − ), which has been proved to play a crucial role in physiological condition. In this work, a novel electrochemical catalyst of cobalt nanoparticle doped porous cubic carbon (Co-PCC) was prepared through the calcination of zeolitic imidazolate framework-67 (ZIF-67), which was obtained from one-step synthesis. Then Co-PCC was used to construct enzyme-free electrochemical sensor for the detection of O 2 − . The response of H 2 O 2 , though much lower than that of O 2 − , was also caught by the Co-PCC/SPCE. The fabricated sensor exhibited obvious response towards O 2 − in the range of 0.8–76.8 μM (R 2 = 0.997) with a high sensitivity of 3.59 × 10 −4 mA μM −1 cm −2 and a limit of detection of 0.41 μM (S/N = 3). In addition, the proposed sensor can be used to detect O 2 − released from SK-BR-3 cells, which makes it possible to monitor the dynamic change of O 2 − in living cells.
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高影响因子
危险品化学品经营许可证（带存储）