JOURNAL OF CATALYSIS
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2022
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IF 8.047
Jinxiao Ba,Hui Cheng,Zhenhan Li,Xianghai Yu,Aiying Song,Chengqun Xu,Donghua Fan,Shengye Jin
In this work, we develop Ni/Ni 3 S 2 /CdS composite photocatalytic system from annealing of CdS nanosphere coated Ni-ZIF by simple solvothermal method. The Ni/Ni 3 S 2 /CdS synthesized after calcination at 700 °C exhibits the best hydrogen evolution performance with an average hydrogen evolution rate of 2104.02 μmol/g/h, which is 152 times higher than that of pure CdS, and external quantum efficiency is 41.9% (λ = 420 nm). Using a series of characterization methods, we revealed that CdS is the photosensitizer, Ni is the catalytic active species, and Ni 3 S 2 formed between Ni and CdS formation plays an important role in charge separation as confirmed by time resolved emission spectroscopy. In addition, the regulation of Ni loading is achieved by changing the annealing time and the molar ratio of Ni salt to CdS. These results demonstrate that Ni/Ni 3 S 2 /CdS is a favorable photocatalyst for efficient photocatalytic hydrogen evolution.
研究领域:
材料科学
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能源化学
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DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2018
·
IF 6.578
Xinru Zhang,Tao Zhang,Yonghong Wang,Jinping Li,Chengcen Liu,Nanwen Li,Jiayou Liao
Mixed-matrix membranes (MMMs) for CO 2 /N 2 separation were prepared by incorporating nickel-substituted ZIF-8 (Zn/Ni-ZIF-8) into a polyether-block-amide (PEBA2533) polymer, in which the Zn and Ni ions in Zn/Ni-ZIF-8 have different affinities for CO 2 based on π-complexation; these MMMs exhibited exceptional molecular sieving properties compared to ZIF-8-PEBA MMMs. Scanning electron microscopy revealed that Zn/Ni-ZIF-8 nanoparticles were small and uniformly distributed within the PEBA, and attenuated total reflectance Fourier-transform infrared spectroscopy revealed good interfacial compatibility between the Zn/Ni-ZIF-8 and PEBA; consequently these MMMs exhibited excellent mechanical properties . The 10% Zn/Ni-ZIF-8-PEBA MMM showed a high CO 2 permeability of 321 Barrer, and a CO 2 /N 2 selectivity of 42.8 at 2 bar; these values were much higher than those of the 10% ZIF-8-PEBA MMM (266 Barrer and 33.8, respectively). We assume that different metal-ion affinities towards CO 2 resulted in the asymmetric adsorption/desorption behaviour of these MMMs, which led to a significantly higher permselectivity for the Zn/Ni-ZIF-8-PEBA MMM. The MMM loaded with 10% Zn/Ni-ZIF-8 exhibited long-term CO 2 -separation-performance stability under mixed-gas conditions, with a CO 2 permeability of 282 Barrer and a CO 2 /N 2 selectivity of 42.7. Moreover, the permselectivity of the 10% Zn/Ni-ZIF-8-PEBA MMM under pure-gas condition surpassed Robeson's upper bound reported in 2008.
研究领域:
材料科学
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环境工程
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
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IF 9
Chuanqi Zhang,Xiaomei Cheng,Ruirui Zhao,Mengxian Fu,Meifang Wang,Zhiming Chen,Changfang Zhang,Xiangzi Li
The integration of metal–organic framework (MOF) materials with magnetic cores not only serves as an effective adsorbent but also facilitates the recovery post-adsorption. In this study, we synthesized Ni@ZIF-8 composite nanotubes by introducing ZIF-8 onto the surface of Ni nanotubes, which were used as adsorbents for antibiotic removal. The Ni@ZIF-8 composite nanotubes exhibited high-efficiency and recyclable antibiotic adsorption, with the maximum adsorption capacities for tetracycline (TC) and cefixime (CFX) reaching 770.2 and 428.2 mg·g −1 , respectively. The Ni nanotubes, acting as magnetic cores, facilitated magnetic recovery after adsorption. Furthermore, the introduction of ZIF-8 not only increased the surface roughness of the composite but also incorporated a significant number of functional groups. The pseudo-second-order model, Langmuir model and intra-particle diffusion models provided better fits to the isotherm and kinetic data of the two antibiotics. Density functional theory (DFT) calculations results indicate that the π-π interactions dominate the adsorption process of both TC and CFX onto ZIF-8. And the electrostatic potential (ESP) calculations and interaction analysis indicate that the Ni atom enhances the adsorption behavior through π-π interactions between the benzene ring or carbonyl group of the two antibiotics and the imidazole of ZIF-8. This research offers a novel approach for the removal of antibiotics from contaminated water and environmental remediation using magnetic core-MOF composite materials.
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
POLYHEDRON
·
2023
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IF 2.6
Zhwan Naghshbandi,Mohammad Gholinejad,José M. Sansano
In recent years, the excellent pore volume, huge specific surface area, and easy functionalizable zeolitic imidazolate frameworks (ZIFs), as new type of porous materials, attracted the attention of scientists. In this work, the new Co-based trimetallic Cu-Ni@ZIF-67 was synthesized using embedded the Cu-Ni precursor in ZIF-67. The structure, morphology and properties of Cu-Ni@ZIF-67 was characterized by the various analysis. The catalytic performance of Cu-Ni@ZIF-67 was investigated for tetracycline (TC) degradation and nitroarenes reduction at room temperature. The resultant catalyst was demonstrated excellent TC degradation efficiency by persulfate (PS) activation in the water during 30 min, and Cu-Ni@ZIF-67 was displayed superior catalytic activity for nitroarenes reduction in the presence of NaBH 4 . Comparing catalytic activity of Cu-Ni@ZIF-67 with Cu/ZIF-67, Ni/ZIF-67, Cu-Ni and ZIF-67 indicated higher activity of Cu-Ni@ZIF-67. Moreover, the recyclability and stability of this catalyst were surveyed.
研究领域:
材料科学
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环境科学
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催化化学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Wenjing Yang,Xujie Zhang,Chenhang Ding,Wurikaixi Aiyiti,Cijun Shuai
Bacterial infections especially bacterial biofilm infections have always been a major obstacle to the reconstruction of deep skin defects. Herein, a photothermal activated multifunctional nanocatalyst (Ni@ZIF-C) is synthesized by doping Ni into zeolitic imidazolate framework-67 (ZIF-67) and carbonizing, following by introducing into polycaprolactone (PCL) to prepare porous scaffolds by selective laser sintering. Especially, the Ni@ZIF-C nanocatalyst endows scaffold favorable chemo/photodynamic/photothermal triple-mode antibacterial activity under near-infrared light irradiation. On the one hand, the highly conductive Ni@ZIF-C improves the separation efficiency of photogenerated electron-hole pairs to trigger reactive oxygen species (ROS) generation, achieving photodynamic sterilization. On the other hand, the superior photothermal conversion efficiency of Ni@ZIF-C in scaffold not only directly destruct bacterial biofilms by hyperthermia but also enhance its own peroxidase-like activity to induce more ROS production, and the latter is bactericidal by chemical mode. Importantly, the destruction of the biofilms enables the pre-generated ROS to kill deep bacteria, achieving a triple-mode combined or even synergistic antibacterial efficacy. Results demonstrated that the PCL/Ni@ZIF-C scaffold with triple bactericidal modalities presents stronger bactericidal ability than PCL/ZIF-67 and PCL scaffolds. Encouragingly, it remarkably destroyed S. aureus and E. coli biofilms and inhibited biofilm formation, effectively triggered massive ROS generation and ultimately eradicated the bacteria deep within the biofilms. Taken together, the scaffold exhibited tremendous potential in utilizing photothermal activated multimodal combined antibiofilm and antibacterial therapy.
研究领域:
生物医学工程
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材料科学
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微生物学
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DOI
高影响因子
MICROCHIMICA ACTA
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2022
·Vol. 189
·期 2
·1-12
·
IF 6.408
Li Guofu,Xie Guoqiang,Gong Chong,Chen Di,Chen Xing,Zhang Qian,Dong Hongzhou,Zhang Yingchao,Li Chengjie,Hu Jing,Chen Yingjie,Yu Liyan,Dong Lifeng
Chains of nickel nanoparticles coated with few nitrogen-doped graphitic carbon layers (Ni@NC) are synthesized by hydrogen-assisted pyrolysis of Ni-ZIF. Hydrogen and temperature can play key roles in the formation of oriented Ni@NC nanoparticle chains, and carbon shells can protect Ni nanoparticles from external oxidation and aggregations. Under the optimized potential (0.60 V vs. Ag/AgCl), the Ni@NC7H nanoparticle chains obtained at 700 °C under H 2 /Ar atmosphere (Ni@NC7H) demonstrate outstanding performances, such as high sensitivity of 1.44 mA mM −1 cm −2 (RSD = 1.0%), low detection limit of 0.34 μM (S/N = 3), broad linear range from 1 μM to 1.81 mM, and excellent application potential in artificial sweat and human serum. Therefore, the findings above indicate that this study will provide a general methodology for the synthesis of chains-like core–shell nanoparticle electrocatalysts for non-enzymatic glucose detection. Graphical abstract
研究领域:
材料科学
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电化学
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分析化学
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2020
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IF 10.652
Ihtisham Ul Haq,Shen Hui Li,Hong-Gang Zhen,Rehan Khan,Ao-Shuai Zhang,Zhi-Ping Zhao
For separating 1, 3-butadiene (BD) from BD/N 2 mixture, among numerous studied metal–organic frameworks-based adsorbents, Ni-ZIF-8 was comparatively selected here based on intelligent gravimetric analysis, simulation studies, facile synthesis, and very good IAST selectivity. Experimental results showed good butadiene uptake capacity of Ni-ZIF-8 of 7.41 mol/kg, which is 42% higher than pure ZIF-8. Additionally, Ni-ZIF-8 exhibits IAST selectivities of 2826 and 3302 at 0.1 bar, at 25 and 45 °C respectively, for 20% BD/N 2 adsorption. The molecular simulation results showed that Ni-ZIF-8 has binding energies of 65.25, 9.54 kJ/mol, while ZIF-8 has 56.07, 15.03 kJ/mol for butadiene, and nitrogen, respectively. This strongly supported the experimental results. To the best of our knowledge, Ni-ZIF-8 showed the best working capacity of 5.91 mol/kg for butadiene among all the reported adsorbents. Moreover, dynamic adsorption experiments revealed that butadiene could be recovered from BD/N 2 mixtures at room temperature, suggesting great potential for industrial BD/N 2 separation.
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
CHEMOSPHERE
·
2022
·
IF 8.943
Tao Zhang,Pan Wu,Gary Owens,Zuliang Chen
Since ofloxacin (OFX) is one of many common antibiotics, which effluxes into aquatic environment in relatively high concentration, it has become of significant environmental concern due to the potential for increased antibiotic resistance. In this study, an innovative functional Fe/Ni@ZIF-8 composite was successfully used for the Fenton-like oxidation of OFX, with a OFX removal efficiency >98% under optimal conditions. FTIR analysis confirmed that OFX removal occurred via adsorption to Fe/Ni@ZIF-8 by a combination of π-π bond intercalation and electrostatic interaction, while XPS revealed that the Fe/Ni NPs in Fe/Ni@ZIF-8 were also involved in oxidation. Furthermore, LC-MS analysis identified the presence of several OFX degradation products post exposure, which indicted that Fe/Ni NPs in Fe/Ni@ZIF-8 reacted with H 2 O 2 to form •OH, leading to Fenton-like oxidation of OFX. Thus overall, OFX removal by Fe/Ni@ZIF-8 involved both adsorption to ZIF-8 and Fenton-like oxidation by Fe/Ni NPs. A synergistic mechanism for OFX removal by Fe/Ni@ZIF-8 was thus proposed. The removal efficiency of the synthesized catalysts remained high (above 65%) even after a 5th reuse cycle, which reflected the high stability of Fe/Ni@ZIF-8. Overall, this study demonstrated that Fe/Ni@ZIF-8 had significant potential for the removal of OFX from wastewaters with a removal efficiency >90%.
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
PubMed
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
·
2025
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IF 4.9
Simin Li,Sen Mu,Ziran Chang,Fengbing Tang,Jingbo Mu,Zhennan Shi
Tetracycline hydrochloride (TCH), a widespread aquatic antibiotic contaminant, threatens environmental sustainability and human health by fostering antibiotic resistance. Here, a hierarchical quartz sand@polydopamine/Co-Ni-ZIF (QS@PDA/CoNi-ZIF) composite catalyst is developed to stimulate peroxymonosulfate (PMS) for TCH removal. In this design, the Co-Ni-ZIF component acts as a highly active PMS activator, with polydopamine (PDA) as an adhesive interface to stably immobilize ZIFs on QS. Using QS as a catalyst substrate exemplifies the concept of “functional redevelopment of traditional materials.” Component synergies enable rapid electron transfer and accelerate Co 2+ /Co 3+ and Ni 2+ /Ni 3+ redox cycling, enhancing reactive oxygen species (ROS) generation. The catalyst achieves dual radical (•SO 4 − , •O 2 − ) and non-radical ( 1 O 2 ) degradation pathways, removing 96.0% TCH within 40 min under optimized conditions. Intermediate analysis reveals three plausible degradation pathways. The composite exhibits broad environmental adaptability (>90% efficiency at pH 3.0-11.0 and in complex water matrices with competing ions) and retains >82% efficiency over four cycles, confirming robust stability and reusability. This work demonstrates QS@PDA/CoNi-ZIF as a scalable solution for treating refractory organic wastewater with high contaminant loads.
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高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2025
·Vol. 27
·期 10
·1-14
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IF 2.6
Shi Yuanteng,Li Nan,Chen Jingjie,Liu Lei,Xu Xingjie,Chai Jin,Li Peng
In view of the urgent need for efficient and low-cost treatment of organic pollutants in printing and dyeing wastewater, magnetic porous adsorbents have attracted significant attention owing to their high efficiency and reusability. Herein, magnetic bimetallic zeolitic imidazolate framework (mZIFs) nanoparticles with Fe 3 O 4 cores were synthesized as the initial precursor. Subsequently, the novel hollow mZIFs core–shell nanocomposites (defined as mNCs) were prepared through a mild tannic acid etching method, designed for efficient removal of organic pollutants from wastewater. The mNCs displayed remarkable adsorption potential, reaching up to 879.49 mg/g for methylene blue (MB) and 262.50 mg/g for tetracycline hydrochloride (TC) at 303 K, with adsorption following the pseudo-second-order kinetic model and fitting well to the Langmuir isotherm. Thermodynamic analysis revealed that the adsorption of MB and TC by mNCs proceeds spontaneously through an endothermic process, and the mNCs retained over 80% of their MB removal efficiency even after five adsorption–desorption cycles. These results highlight the potential of mNCs as an efficient and reusable adsorbent for eliminating organic contaminants in wastewater treatment. Graphical
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高影响因子
JOURNAL OF APPLIED ELECTROCHEMISTRY
·
2023
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IF 2.9
Zhan Ke,Du Yongkun,Liu Qingqing,Cui Chenxu,Xing Guangxu,Li Shanshan,Ren Hongtao,Wang Fan,Xu Chao,Wang Na
Wheat gliadin is thought to be the main cause of wheat allergy leading to celiac disease. In this study, we reported an electrochemical immunosensor based on AuNPs/Zn/Ni-ZIF-8-800@graphene for simple, efficient, and sensitive detection of gliadin. A monoclonal antibody against gliadin were prepared by hybridoma technique. Zn/Ni-ZIF-8-800 with high stability was prepared by using zinc–nickel bimetallic organic framework MOFs, and graphene and gold nanoparticles with large surface area and excellent conductivity were introduced. Chitosan was used as a binder to fixed the composite on the surface of glassy carbon electrode. The fabricated materials and the corresponding sensors were comprehensively characterized by X-ray diffractometer, scanning electron microscope, transmission electron microscopy, Fourier transform infrared spectroscopy, Brunauer–Emmett–Teller, and cyclic voltammetry analyses. Under the optimal conditions, the linear range of the electrochemical immunosensor was 0.1–100 μg mL −1 , and the detection limit was 0.950 μg mL −1 . In addition, the fabricated sensor exhibited high selectivity and long-term stability. The recovery test showed that the prepared sensor was suitable for the detection of gliadin in real food and feed, exhibiting great promising of the developed sensor in practical application. Graphical abstract
研究领域:
分析化学
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生物化学
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材料科学
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食品科学
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免疫学
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DOI
高影响因子
FUEL
·
2022
·
IF 8.035
Xu Pan,Fei Li,Ye Chen,Qing Wen,Xiaoqian Li,Junhong Wang,Haitao Xu,Liuqingying Yang
As a green conversion/energy storage device, the practical application of microbial fuel cell (MFC) was limited with its low power generation. The extracellular electron transfer efficiency was one of the key factors affecting the power generation performance of MFC. This paper reported the carbonized derivative Co-Ni-ZIF@NC derived from PANI-doped Co-Ni-ZIF with conductivity, biocompatibility and high electrocatalytic activity. Density functional theory (DFT) confirmed the strong interaction between the electrode surface and microorganisms. The maximum power density of the MFC with Co-Ni-ZIF@NC anode (8.67 W/m 3 ) was 1.47 time higher than that of Co-Ni-ZIF@C-800 (5.96 W/m 3 ). High-throughput sequencing revealed that Co-Ni-ZIF@NC catalyst facilitated the screening of relevant functional microbial communities in microbial membranes, leading to the reinforcement of power generation in MFC. PICRUSt predicted the relative abundance of functional genes, confirmed the spontaneous enrichment behaviour of functional microorganisms to the electrode surface, and identified cytochrome c552 as the dominant role in the EET process. The above foregoing mainly due to the doping of PANI, improved the content of pyrrolic N on the surface of derivatives, protected the original crystal morphology, promoted the approaching behaviour of conductive flagella to the anode surface and shortened the electron transport distance, thus Co-Ni-ZIF@NC exhibited superb bioelectrocatalytic activity.
研究领域:
能源材料
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电化学
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微生物电化学系统
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计算化学
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环境生物技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）