Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Pin Hou,Jiaqi Yan,Xiaoyu Yang,Ridha Djellabi,Xinrui Ge,Xinyu Sun,Jianli Jia,Jianbing Wang
Metal-organic framework (MOF)-derived carbon-based electrodes have demonstrated outstanding capacitive deionization (CDI) performance, owing to their special structures and configurations. Developing novel low-cost controllable protocols to obtain highly efficient Nitrogen-doped carbon-derived MOFs is the most challenging factor to transfer widely the application of these materials at real world. This work aims to develop a low-cost one-step growth route to produce N-doped carbon (NGZC) utilizing N-doped graphene quantum dots (N-GQDs) and zeolitic imidazolate frameworks-8 (ZIF-8) as starting substrates. The surface chemistry, morphology and CDI performance of the as-synthesized NGZC electrode were investigated, compared with conventional materials. The authors found that the introduction of N-doped graphene quantum dots dramatically enhances the mesopore volume (0.742 cm 3 /g) and pyrrolic-N ratio (19.21 %) for NGZC. These improvements effectively shorten the electron and sodium ion transport paths which in turn facilitate the pseudocapacitive activity and charge transfer in NGZC. The specific capacitance and salt adsorption capacity were found to be 283.16 F/g and 17.86 mg/g, respectively, demonstrating superior values than commonly used electrodes. NGZC shows a high stability over 30 adsorption-desorption cycles with a capacity retention of 90 %. DFT results further demonstrate the pseudocapacitive superiority of pyrrolic-N to reinforce the Na + capture. This finding provides new insights into the design of an economical and controllable N-doped carbon electrode for efficient CDI desalination.
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ANALYTICAL CHEMISTRY
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2022
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IF 8.008
Yanping Sun,Tong Shu,Jianxin Ma,Qiong Dai,Peiwen Peng,Ziping Zhou,Xiang Zhou,Lei Su,Xueji Zhang
The development of modern technologies has acclimatized biosensors to complicated applicable scenarios with integrated properties as a whole instead of the pursuit of a single-point breakthrough. Here, we targeted a few concerns in the development of enzyme-based biosensors, including stability, analyte enrichment, and signal transduction, and developed a general biosensing model utilizing enzymes, aggregation-induced emission (AIE) luminogens, and stimuli-responsive framework materials as the units. We propose such proof-of-concept of glucose biosensors by coencapsulating glucose oxidase and AIE-type gold nanoclusters into acid-sensitive zeolite imidazolate framework (ZIF)-8 nanocrystals. The acid-activated degradation of ZIF-8 bridges the molecular signals produced by the enzyme-catalytic reaction of glucose and the photon signals generated by ZIF-8-induced AIE effects of gold nanoclusters, resulting in the “turn-off” model nanoprobes for glucose detection with high selectivity. After embedding the nanoprobes into hollow-out tapes, the formed paper biosensors can conveniently detect glucose with the help of a smartphone.
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高影响因子
ACS Applied Materials & Interfaces
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2017
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IF 7.504
Yi Jiang,Haiqiang Liu,Xinghua Tan,Limin Guo,Jiangtao Zhang,Shengnan Liu,Yanjun Guo,Juan Zhang,Hanfu Wang,Weiguo Chu
2D hierarchically porous carbon (2D-HPC) nanosheets with unique advantages are highly desired as host materials for lithium sulfur (Li–S) batteries and other energy storage devices. Herein, we propose a self-template and organic solvent-free approach to synthesize nanosheets of monoclinic ZIF-8 at room temperature from which 2D-HPC nanosheets (ZIF-8 nanosheets carbon denoted as ZIF-8-NS-C) are derived to be an efficient sulfur immobilizer for Li–S batteries for the first time. The anisotropic nanosheets are believed to relate to the symmetry of the monoclinic structure. The 2D ZIF-8-NS-C nanosheets with embedded hierarchical pores construct an effective conductive network through “plane-to-plane” modes to endow superior electron transfer and fast electrochemical kinetics. Moreover, the nitrogen-rich feature of ZIF-8-NS-C can increase the affinity/interaction of carbon host with lithium polysulfides, favoring the cyclic performance. The sulfur/ZIF-8-NS-C (S/ZIF-8-NS-C) cathode shows a superior rate capability with high capacities of 1226 mA h g–1 at 0.2 C and 785 mA h g–1 at 2 C, and a sustainable cycling stability with a capacity attenuation of 0.12% per cycle at 0.5 C for 300 cycles. The approach proposed here pioneers the controllable design of MOF-based structures to inspire the exploration of more variable MOF-derived porous materials for energy storage applications.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2022
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IF 8.025
Zhan Shu,Cencen Zhang,Lizhao Yan,Haoqi Lei,Caixing Peng,Shuang Liu,Lihong Fan,Yingying Chu
Repair of periodontal and maxillofacial bone defects is a major challenge in clinical. Guided bone regeneration (GBR) is considered one of the most effective methods. However, the efficacy of currently available GBR membranes for repair is frequently limited by their poor osteogenic potential and lack of antibacterial activity. The first step in this investigation was to construct a zinc-based zeolite-imidazolate framework loaded with copper ions ( [email protected] ). Following that, a novel polycaprolactone/polylactic acid/nano-hydroxyapatite/ [email protected] (PCL/PLA/n-HA/ [email protected] ) GBR membrane was developed using a simple porogen with nonsolvent-induced phase separation (NIPS) approach. The produced membrane with asymmetric porous structure (one smooth side and one rough side) possesses hydrophilicity corresponding to the roughness of its two sides. The superior mechanical property, stability of degradation, and ion release capability of the membrane all contribute to the clinical feasibility. Additionally, in vitro biological experiments demonstrated that the PCL/PLA/n-HA/ [email protected] membrane had favorable osteogenic and antibacterial properties, which suggests the high potential for application in the GBR procedure.
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高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2022
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IF 7.129
Yixuan Liang,Hanbing Li,Xiaotong Li,Qiyu Zhang,Jiaying Fei,Sumei Li,Sha Chen
Around 6.6 million tons of spent coffee is produced per year, resulting in resources loss and potential environmental risks. Hence, a green technique is required to reuse the spent coffee grains. In this study, coffee grounds were burnt at 900 °C to generate the biochar (BC) for the synthesis of the porous adsorbent (ZIF-8 @BC) by growing ZIF-8 on the surface of BC. We applied the well-prepared ZIF-8 @BC to remove Congo red (CR) in water. The maximum adsorption capacity of ZIF-8 @BC on Congo red in water was up to 1080.4 mg/g, which was significantly higher than that of many different types of BCs reported in previous studies. The reasons for its highly efficient adsorption of CR probably was attributed to metal ions and coordinatively unsaturated sites in the material. Also, BC enabled the less aggregation of ZIF-8 to provide sufficient specific surface area for CR adsorption. From the analysis of the pseudo-second-order kinetic model and Langmuir model, the adsorption of ZIF-8 @BC on CR was a homogeneously chemical adsorption process regulated by electrostatic interaction, π-π stacking and metal coordination.
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ACS ES&T Water
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2020
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IF 0
Limei Dong,Yiming Li,Dafan Chen,Xiuping Chen,Dan Zhang
The hierarchically structured Fe3O4-MnO2-ZIF-8 composite was successfully synthesized and applied to activate peroxymonosulfate (PMS) for the degradation of bisphenol A (BPA) and other organic pollutants for the first time. Catalytic experiments revealed that the as-prepared Fe3O4-MnO2-ZIF-8 showed highly efficient catalytic activity and deep mineralization for BPA because of the loading of ZIF-8. When 60 mg/L BPA was degraded by the Fe3O4-MnO2-ZIF-8/PMS system, the removal efficiency of BPA reached 100% within 15 min and the TOC removal efficiency reached 80% within 9 min, values that were much higher than those of the catalysts reported recently. Fe3O4-MnO2-ZIF-8 can be separated conveniently from the aqueous phase under magnetic field control and shows better recyclability. Simultaneously, the Fe3O4-MnO2-ZIF-8/PMS system shows an excellent removal capability for other organic pollutants, such as phenol, tetracycline, p-hydroxybenzoic acid, and rhodamine B. Through radical quenching experiments and electron paramagnetic resonance tests, the mechanism of activation of PMS by Fe3O4-MnO2-ZIF-8 was investigated. ZIF-8 loaded on the surface of the Fe3O4-MnO2 composite can accept electrons generated from the Mn(II)/Mn(III)/Mn(IV) redox conjugate triplet and react with PMS to generate more •OH and SO4•–, thus significantly enhancing the catalytic performance. Additionally, on the basis of GC-MS analysis, the intermediates in the process of BPA degradation were tested and the possible degradation pathway was determined. This study indicates that Fe3O4-MnO2-ZIF-8 is a highly efficient catalytic material for PMS-based AOPs for the removal of various pollutants from water.
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MATERIALS & DESIGN
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2025
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IF 7.9
Haowen Qi,Xue Tao,Xinyu Yang,Suqin Zhang,Shujing Wang,Changyu Shao,Chen Chen,Haifeng Xie
Resin-bonded restorations, a prevalent treatment modality for dental defects, are prone to complications including nanoleakage, secondary caries, and pulpal pathology over extended service periods. To address these challenges, this study developed a multifunctional biomaterial, HZN@PAH-ACP, specifically designed for application at the dentin bonding interface. The material was fabricated by etching ZIF-8 with tannic acid to produce HZN, which was subsequently loaded with poly(allylamine)-stabilized amorphous calcium phosphate (PAH-ACP). The structure and formation mechanism of this biomaterial were thoroughly investigated using electron microscopy and molecular dynamics simulations. Meanwhile, HZN@PAH-ACP effectively induced intrafibrillar mineralization of collagen fibers and promoted remineralization of demineralized dentin, significantly reducing nanoleakage within the hybrid layer. Furthermore, the material inhibited the activity of Streptococcus mutans and exhibits excellent biocompatibility, while simultaneously enhancing the odontogenic differentiation and mineralization of human dental pulp stem cells. All powered by the simultaneous release of calcium, phosphate, zinc ions, and tannic acid, and the reduction in pH further accelerates this process. The development of this biocompatible, multifunctional repair biomaterial presents considerable clinical potential, as it addresses multiple challenges concurrently through a single application, that can be used in adhesive primers and pulp capping agents, offering a promising solution for dental restoration.
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JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
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2020
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IF 2.69
Zhentao Lei,Qiuju Tang,Yanshan Ju,Yonghui Lin,Xiaowen Bai,Haipeng Luo,Zaizai Tong
Developing the hybrid nanosystems for controlled drug release is still a challenging task. In this work, pH-responsive core-shell nanocomposites have been prepared by the growth of zeolitic imidazolate framework-8 (ZIF-8) on the surface of polymeric aggregates self-assembled from poly(ε-caprolactone)-block-poly (quaternized vinylbenzyl chloride/bipyridine) (PCL-b-q(PVBC/BPy), BCP for short) in water. The core of the micelles or the inner cavity of vesicles serves as the drug storage reservoir for the doxorubicin hydrochloride (DOX) and the ZIF-8 shells act as the gatekeepers to prevent drug premature release at physiological environment. Upon pH stimulus, the core-shell nanocomposites (BCP@ZIF-8) show a retarded drug release behavior compared with DOX-loaded polymeric aggregates counterparts (without the shell of ZIF-8). Moreover, the as-prepared nanocomposites perform good biocompatibility towards MCF-7 cell. Meanwhile, the DOX-loaded BCP@ZIF-8 nanocomposites present lower cytotoxicity compared with DOX-loaded BCP and free DOX. The confocal microscopy study shows the core-shell nanocomposites could be efficiently internalized by cancer cells, and the loaded DOX could be successfully released under acidic intracellular environment. The above result shows that the core-shell nanocomposite could be a promising candidate for pH-responsive drug delivery system in the cancer therapy.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2025
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IF 8.5
Jiang Teng,Yuheng Liu,Pei Li,Tianqiang Liu,Xiaoqiang Liu
Herein, a novel recyclable composite microsphere PnBC/ZIF-8-CNs was successfully synthesized by incorporating the zeolitic imidazolate framework-8 (ZIF-8) into 3-aminophenylboronic acid modified bacterial nanocellulose microspheres (PnBC-MS). The structural characteristics were characterized with scanning electron microscopy (SEM), transmission electron microscopy (TEM) as well as element energy X-ray spectroscopy (EDS) mapping, X-ray diffraction (XRD), fourier transform infrared spectrometer (FT-IR), thermogravimetric analysis (TGA), XPS (X-ray photoelectron spectroscopy), and brunauer-emmett-teller (BET). The data showed that adsorption of PnBC/ZIF-8-CNs accorded with the pseudo-first-order kinetic model with spontaneous and endothermic process. The maximum adsorption capacity of tetracycline (1564.44 mg/g) enhanced by 1.2–5 folds compared with other adsorbents containing ZIF-8. The adsorption rate maintained at 81.25 % after five cycles of adsorption-desorption. The practical removal efficiency of tetracycline from real hoggery wastewater by PnBC/ZIF-8-CNs reached 89.77 %. Overall, these features suggested that PnBC/ZIF-8-CNs had simple preparation process, high removal efficiency and good reusability, and it will be a promising adsorbent for the actual antibiotics removal in water.
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高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Chao Li,Juan Lu,Yanjia Guo,Jing Wang,Yujia Song,Ruidan Li,Li Tian,Xuwen Li
In this study, a solid-state electrochemiluminescence (ECL) sensor was developed for ultrasensitive and specific detection of sulfapyridine (SPY) using graphitic carbon nitride (g-C 3 N 4 ) as a luminescent reagent. The sensor was fabricated by sequentially coating composite material g-C 3 N 4 @ZIF-8 and Nafion onto the electrode surface. The g-C 3 N 4 , synthesized through high-temperature pyrolysis of melamine, generated a sensitive ECL signal in K 2 S 2 O 8 solution. And g-C 3 N 4 served as a carrier for ZIF-8, with the latter acting as a co-reaction promoter within the g-C 3 N 4 -K 2 S 2 O 8 system, leading to a significant enhancement of the ECL signal. Additionally, molecularly imprinted polymers (MIPs) with SPY were introduced to further enhance the performance of the sensor by specifically recognizing SPY. Under optimal conditions, the prepared ECL sensor showed sensitive measurement of SPY in the linear range of 5.0 × 10 −13 ∼ 5.0 × 10 −8 mol/L, with a detection limit (LOD) of 1.67 × 10 −13 (S/N = 3). The developed MIP-ECL sensor demonstrated good stability, high sensitivity, and reliable reproducibility, thus making it suitable for detecting SPY in real samples.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Kaihua Li,Yuchao Ma,Wei Zhao,Leixin Yang,Jinwei Zhang,Qian Zhang,Xiaohua Ma,Long Jiao,Zhen Yin,Bowen Cheng
The challenges of trade-off effect and long-term stability pose huge obstacles in the application of polymer-based gas separation membranes. In this study, we proposed a novel strategy to overcome these problems by in-situ thermally treating ZIF-8/polyimide mixed-matrix membranes (MMMs) at 300 °C. After thermally treatment, the T-ZIF-8 produced some unsaturated Zn site as defects that decreased BET surface area and the shrunk of micropore size as compared with ZIF-8. The MMMs with T-ZIF-8 significantly affects their gas separation performance and long-term stability, in which, the H 2 /CH 4 and CO 2 /CH 4 separation performance of T-ZIF-8/PI(3:10) and T-ZIF-8/PI(6:10) increased from far below the 2008 trade off lines for their PI matrix to approach or even above that. Additionally, both higher permeability and selectivity were observed for T-ZIF-8/PI(6:10) as compared with its precursor for H 2 /CH 4 separation, which was contributed by its higher H 2 diffusion coefficient (3834 vs 580 × 10 -8 cm 2 s −1 ) and H 2 /CH 4 diffusion selectivity (240 vs 154). Furthermore, the T-ZIF-8/PI (1:10) and T-ZIF-8/PI(3:10) MMMs demonstrate less than 15 % H 2 decreasing after 150 days, which is much better than that of the pristine PI membrane (26.7 %). These results probably contributed by the defected ZIF-8 loading induced extra ultra-micropore that caused size sieving effect and strong interaction with polyimide matrix that formed more rigid polymer chains. These findings propose a strategy to effectively enhance the gas separation performance and long-term stability by in-situ introducing the defect MOF in the polymer matrix.
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NEW JOURNAL OF CHEMISTRY
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2024
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IF 2.7
Xinghao Li,Sara Ajmal,Penghui Fang,Xiaoxing Zhou,Maoni Lu,Sichen Li,Ping Chen,Peng Li,Manzhou Zhu
Ultrafine metal nanoclusters have been extensively studied due to their fascinating chemical characteristics. In this work, ultrafine AgCu nanoclusters are synthesized and loaded on the defective ZIF-8 (denoted as AgCu/D-ZIF-8). The findings show that the as-obtained AgCu/D-ZIF-8 catalysts with low AgCu loading (0.387 wt%) exhibit outstanding catalytic performance and recyclability for the reaction of azide–alkyne cycloaddition (click reaction) at 35 °C. Compared with monometallic Ag25/D-ZIF-8 and Cu25/D-ZIF-8 catalysts, bimetallic AgCu/D-ZIF-8 catalysts present exceptional activity for the click reaction. Additionally, AgCu/D-ZIF-8 catalysts display a higher yield of target product for this reaction compared to AgCu/ZIF-8. The experimental results suggest that some defective sites in D-ZIF-8 are occupied by AgCu nanoclusters, which may be key to improving the activity and recyclability of AgCu/D-ZIF-8 catalysts. Consequently, this work provides valuable insights for designing ultrafine bimetallic catalysts with high performance.
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