MICROCHEMICAL JOURNAL
·
2024
·
IF 4.9
Yanjia Guo,Juan Lu,Jing Wang,Yujia Song,Ruidan Li,Li Tian
PM6 is a polymer donor characterized by a wide bandgap, commonly utilized in high-performance polymer solar cells. In this study, we applied PM6 to the field of electrochemiluminescence for the first time. By sequentially modifying PM6, CS@luminol and ZIF-8 on the electrode, we constructed a simple yet novel electrochemiluminescence (ECL) sensor for the detection of the colorant sunset yellow (SY). As a donor, PM6 enhanced the charge transfer rate within the system and improved its luminescence performance. CS served to stabilize the luminescent reagent due to its viscosity. ZIF-8 acted as an accelerator in the luminol luminescence system, facilitating the absorption of more active oxygen and generating additional reactive species on the electrode surface. The combined action of PM6 and ZIF-8 resulted in a luminol ECL sensor that exhibited a sensitive and stable signal. When exposed to sunset yellow, the ECL signal diminished consistently with increasing concentrations of SY. Under optimal conditions, the ECL attenuation signal demonstrated a linear relationship with the logarithm of SY concentration, with a linear range of 5.0 × 10 − 13 –5.0 × 10 − 8 mol L -1 , and a detection limit of 1.67 × 10 −13 mol L -1 (S/N = 3). The constructed sensor exhibited excellent stability, selectivity, and repeatability, making it suitable for the actual detection of sunset yellow in sports drinks.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Haonan Zhang,Huaibao Tang,Ling Fang,Yunchuan Luo,Jie Zhou,Leilei Shu,Olim Ruzimuradov,Shavkat Mamatkulov,Butanov Khakimjan Turamuradovich,Kamoladdin Saidov,Dae Joon Kang,Wen He,Peihong Wang
The advanced flexible wearable self-charging power system (SCPS) offers exciting development prospects for flexible electronics, medical sensing, and environmental monitoring. However, constructing a SCPS with fast charging rate still remains a significant challenge. Therefore, in this study, a flexible SCPS featuring rapid charging rate has been designed. Micro-supercapacitors (MSCs) with a synaptic structure were fabricated via electrospinning technique followed with laser engraving, employing polyethylene glycol diacrylate/sulfuric acid gel and ZIF-8@MXene/carbon nanofibers as the polymer gel electrolyte and electrodes, respectively. The specific capacitance of the synaptic-structured MSCs was measured to be 25.5 F g −1 . The power management circuit (PMC) converts the AC output generated by the Ecoflex/BTO triboelectric nanogenerator (TENG) into a stable DC output through periodic conduction, thus greatly reducing the impedance gap between TENG and MSCs, enabling SCPS to efficiently collect high-entropy energy from the environment. The average charging rate could of SCPS reach as high as 26 mV s −1 , which is 14.5 times higher than that achieved with a rectifier, and significantly higher than that reported in the literature. The as-prepared SCPS could provide important support for green energy and sustainable development.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Peiyuan Zhu,Junxian Yang,Fangfei Sun,Kun Wang,Hui Li,Lincai Peng
The widespread environmental issues caused by plastic packaging have driven the search for sustainable alternatives. In this study, we report a facile and scalable layer-by-layer (LBL) spraying strategy to fabricate superhydrophobic paper-based packaging materials with integrated photothermal and photodynamic antibacterial activities. Cellulose paper was modified through the alternate deposition of collagen (COL) and polydopamine-hybridized ZIF-8 (PDA@ZIF-8) nanoparticles to construct hierarchical micro/nano structures, followed by polydimethylsiloxane (PDMS) treatment. The resulting superhydrophobic paper demonstrated remarkable water repellency, self-cleaning and antibacterial adhesion performance. In contrast to original paper, this functional paper also exhibited enhanced mechanical properties and gas barrier. Under 808 nm near-infrared (NIR) irradiation, it generated localized heat and reactive oxygen species (ROS), achieving up to 100 % inhibition against Staphylococcus aureus and Escherichia coli . Moreover, the modified paper demonstrated good biocompatibility and biodegradability, meeting food safety requirements while addressing environmental sustainability. Preservation packaging tests revealed that this functional paper, when combined with NIR irradiation, effectively preserved the quality and freshness of blueberries for 8 days during ambient storage. This work presents a promising strategy for the development of multifunctional and biodegradable paper-based packaging materials, showing great potential for green and active food packaging applications.
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高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Le-Yan Feng,Zhenhua Tang,Nuan Xu,Jiaxin Huang,Yan-Ping Jiang,Xin-Gui Tang,You Zeng,Shang-Xian Chen
Antibiotics play an essential function in treating various diseases. However, their overuse has led to water pollution and food safety issues. This work discusses a highly sensitive ratiometric fluorescent flexible sensor based on multifunctional 4-MU@ZIF-8@PLA-PEG composite film prepared using a low-toxicity, eco-friendly and self-assembly method. The sensor combines the luminescent properties and structural tunability of ZIF-based composites with the processability and flexibility of polymers. The 4-MU@ZIF-8@PLA-PEG sensor can detect tetracycline (TC), oxytetracycline (OTC), chlortetracycline hydrochloride (CTC⋅HCl), and doxycycline hydrochloride (DOX⋅HCl) with dual-emission ratiometric fluorescence, exhibiting a visible color change from blue to yellow, with detection limits of 0.058 nM, 16.806 nM, 2.113 nM and 20.510 nM, respectively. The fluorescence characteristics exhibit excellent linear relationships with TC detection in tap water and milk, and show inhibition rates of 87.27 % and 76.61 % against E. coli and S. aureus . With its antibacterial activity, visual detection, high sensitivity, and short detection time, this sensor has significant potential for detecting antibiotics in aquatic environments and food safety applications.
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高影响因子
Gels
·
2022
·Vol. 8
·期 10
·610
·
IF 4.432
Zong-Mu Dong,Peiyi Zhang,Tong Sun,Qian Xia,Jian-Feng Wu,Guang-Chao Zhao
In this study, a hybrid composite featuring zeolitic imidazolate framework-8/carbon aerogel (ZIF-8/CA) was synthesized via in situ nucleation and growth of ZIF-8 nanoparticles inside carbon aerogels. The novel material was used as the solid-phase microextraction (SPME) coating for the five phthalic acid esters (PAEs) detection by coupling with a gas chromatography–flame ionization detector (GC-FID). Compared with bare carbon aerogel, the ZIF-8/CA presented the best performance, which is attributed to the unique advantages between the high surface area of CA and high hydrophobic properties, the thermal stability of ZIF-8, and their synergistic adsorption effects, such as molecular penetration, hydrogen bond, and π–π stacking interactions. Under the optimized conditions, the as-proposed ZIF-8/CA fiber provided a wide linearity range from 0.2 to 1000 μg L−1and a low detection limit of 0.17–0.48 μg L−1for PAEs analysis. The intra-day and inter-day of signal fiber and the fiber–fiber relative standard deviations were observed in the ranges of 3.50–8.16%, 5.02–10.57%, and 5.66–12.11%, respectively. The method was applied to the determination of five PAEs in plastic bottled and river water samples.Keywords:carbon aerogel;metal–organic framework;phthalate acid ester;solid-phase microextraction
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PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2018
·Vol. 53
·期 15
·10772-10783
·
IF 2.993
Liu Guangyang,Li Lingyun,Huang Xiaodong,Zheng Shuning,Xu Xiaomin,Liu Zhongxiao,Zhang Yanguo,Wang Jing,Lin Huan,Xu Donghui
In this study, the functional adsorbent metal–organic framework ZIF-8/magnetic multi-walled carbon nanotubes (M-M-ZIF-8) was successfully prepared for removal of eight organophosphorus pesticides from environmental water and soil samples. The M-M-ZIF-8 was characterized and their adsorption capacity was evaluated based on their isothermal adsorption curves. The results suggest that ZIF-8 particles are deposited on the surface of the magnetic MWCNTs via coordination–polymerization strategy. In addition, M-M-ZIF-8 has high static adsorption capacities for organophosphorus pesticides because of its high specific surface area and porous structure. The static adsorption data fit the Freundlich adsorption model better than the Langmuir model. Under the optimized conditions, M-M-ZIF-8 was successfully applied to remove the eight organophosphorus pesticides from environmental water and soil samples. A possible mechanism is valence-electron-driven adsorption by sharing or exchanging of electrons between the organophosphorus pesticide molecules and the vacant active sites of M-M-ZIF-8. Therefore, M-M-ZIF-8 is a promising hybrid adsorbent for adsorption and removal of organic pollutions from the environment.
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高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2022
·Vol. 51
·期 8
·4493-4508
·
IF 2.047
Chen Yuan Tao,Wang Fang,Zhang Min,Zeng Han
2-Methyl imidazole and Zn(NO 3 ) 2 were proposed as raw materials for the hemoglobin (Hb) accommodation matrix ZIF-8, and the encapsulation of Hb molecules onto ZIF-8 was achieved by hydrogen bond interaction and electrostatic attraction. The electrochemical sensing performance of H 2 O 2 for Hb integration into metal–organic framework (MOF) material was analyzed systematically and evaluated quantitatively to identify the key factor in limiting the sensing efficiency. The influence of mutual interactions between Hb and ZIF-8 on the spectroscopic features and sensing efficiency for complexes with Hb incorporation was estimated by multiple techniques to explore the impact of those interactions on the relevant steps involved in the catalysis. The results from experiments revealed that the hydrogen bond between Hb and ZIF-8 led to non-oriented aggregation of enzyme molecules onto the MOF with reduced active surface area and inhibited catalytic activity. The relatively weak interaction between heme protein and MOF material did not result in serious distortion in the structure or chemical nature of Hb entrapment into ZIF-8. The presence of a mutual interaction between Hb and ZIF-8 did not impose a serious negative effect on heterogeneous electron shuttle (28.2–91.2 s −1 ) for the heme site in Hb entrapment into ZIF-8, which was classified into a typical quasi-reversible and thin-film confining mode with the involvement of four electrons and two H + ions. The results showed that hb-induced electrocatalysis was limited by the step of substrate diffusion (1.3 × 10 −3 s −1 ). The Hb-based electrode demonstrated excellent affinity to dissolved H 2 O 2 (Michaelis constant: 28.0 μM) and desirable sensing performance (low detection limitation: 3.7 μM). Graphical Abstract Illustration of the procedure for preparing the electrode based on MOF material (ZIF-8) with hemoglobin accommodation via physical adsorption and electrostatic attraction, which gives rise to non-oriented distribution of hemoglobin attachment onto the surface and inner cavity of ZIF-8.
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高影响因子
JOM
·
2025
·
IF 2.3
Wu Shijie,Gu Haiquan,Chen Zhimin,Jia Jun,Sun Liang,Li Yafeng
Nitrogen- and oxygen-doped high specific surfaces of activated carbon with an optimized pore system have been obtained by the method of calcination at 1000°C, using ZIF-8 as the precursor. The ZnCl 2 is as the activating agent, which is reduced to Zn 0 by the carbon in the precursor. And the specific surface area of activated carbon can reach up to 2569 m 2 g −1 . This is comparable to the specific surface area of activated carbon produced with KOH as the activating agent. The N 2 isothermal adsorption–desorption at 77 K indicates that the specific surface area of N-doped super-activated carbon increases a little to 2838 m 2 g −1 , when the urea has been incorporated into the precursor as extra an nitrogen source. Interaction between N- and O-doped carbon and K + ions in KOH is illustrated by the corresponding density function theory (DFT), and the electron cloud between K and the carbon material is simulated. The electrochemical measurements were conducted in 6 M KOH and 1 M Na 2 SO 4 , which confirms that nitrogen and oxygen doping has a significant increase in specific capacitance. The super-activated carbon with an optimized pore system possesses excellent electrochemical performance, which shows good application prospects for energy storage.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Yun Xiong,Niyan Deng,Xiaoyu Wu,Quan Zhang,Shengpeng Liu,Guofeng Sun
The incorporation of attainable amine functionality in zeolitic imidazolate framework-8 (ZIF-8) is utilized to enhance the pervaporation performance for ethanol/ water separation applications. Using 2-aminobenzimidazole, a ligand with NH 2 -functionalized group, displacement of the ZIF-8 original ligand during de novo synthesis while preserving the ZIF-8 initial structure, which produces a novel mixed- linker ZIF material (ZIF-8-NH 2 ) with smaller nanocrystal size, controllable pore size, and enhanced hydrophilicity. A series of different mixed matrix membranes (MMMs) were fabricated by incorporating ZIF-8-NH 2 into poly(vinyl alcohol) (PVA) matrix. Various characterization techniques, such as FTIR, 1 H NMR, XRD, SEM, TGA, and Contact angle etc. were employed to demonstrate the properties of prepared ZIF nanoparticles and the MMMs. The results indicated that ZIF-8-NH 2 and the MMMs were perfectly fabricated, which were attributed to better dispersion and compatibility between them. In particular, 7-ZIF-8-NH 2 /PVA MMM exhibited a comparable total flux of 142 g/m 2 ·h and water/ethanol separation factor of 925, which were increased by 73 and 524%, on the basis of the pristine PVA membrane. In addition, different nanofillers, APTES crosslinking, ZIF-8-NH 2 loading, operating temperature, feed concentration, and membrane stability were evaluated in detail. This study might provide a promising prospect for designing MOF-based MMMs with the introduction of various functional groups.
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高影响因子
Chemistry-An Asian Journal
·
2021
·Vol. 16
·期 15
·2146-2153
·
IF 4.568
Liling Lei,Yiwei Zheng,Xichen Zhang,Yutian Su,Xi Zhou,Shishan Wu,Jian Shen
Graphical A new zinc-ion hybrid capacitor assembled by using a Zn@annealed ZIF-8 anode and ZIF-8 derived C cathode provides a capacity of 135.5 mAh g −1 and an energy density of 108.4 Wh kg −1 with a power density of 800 W kg −1 at 1.0 A g −1 . Zn is a promising anode for aqueous energy storage owing to it intrinsic superior properties such as large capacity, abundant reserves, low potential and safety. But, the growth of dendrites during charge and discharge leads to a decrease in reversibility. In addition, further development of zinc-ion hybrid capacitors (ZICs) is seriously challenging because of the lack of an exceptional cathode. Herein, we use ZIF-8 annealed at 500 °C (annealed ZIF-8) as a host material for stable and dendrite-free Zn anodes. Utilization of annealed ZIF-8 results in dendrite-free Zn deposition and stripping as a result of its porous construction, which contains trace Zn. Furthermore, we firstly proposed innovative N,O dual-doped carbon which was designed by the derived ZIF-8 (ZIF-8 derived C) as cathode for high-energy and power-density ZICs. The new ZIC assembled by Zn@annealed ZIF-8 anode and ZIF-8 derived C cathode provides a capacity of 135.5 mAh g −1 and an energy density of 108.4 Wh kg −1 with a power density of 800 W kg −1 at 1.0 A g −1 . In addition, it shows outstanding cycling stability of 91% capacity retention after 6000 cycles at 5.0 A g −1 . Moreover, the solid-state ZICs can drive LEDs and smart watches. This ZIC holds promise for the practical application of supercapacitors.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2021
·
IF 8.198
Cijun Shuai,Jun Zan,Fang Deng,Youwen Yang,Shuping Peng,Zhenyu Zhao
Zeolitic imidazolate framework-8 (ZIF-8) nanoparticles are able to act as effective reinforcements to enhance the overall performance of a poly-l-lactic acid (PLLA) scaffold due to its interface compatibility and natural degradability. Nevertheless, the fast degradation of ZIF-8 would release excessive zinc ions, which produces adverse effects on natural cell growth. In this study, a core–shell-structured nanoparticle, in which ZIF served as a core and hydroxyapatite (HA) served as a shell, was constructed by polydopamine (PDA)-induced in situ growth of HA on ZIF-8 nanoparticles, aiming to control the zinc ion release. Then, the core–shell-structured nanoparticle (ZIF-8@PDA-HA) was introduced into the PLLA scaffold using selective laser sintering. Results showed that the zinc ion concentration for the PLLA/ZIF-8@PDA-HA scaffold decreased by 65.3% after 28 days of immersion, as compared with the PLLA/ZIF-8 scaffold. Moreover, the in situ-synthesized HA possessed superior bioactivity, which effectively enhanced the mineralization ability of scaffolds and promoted cell adhesion, proliferation, and differentiation.
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高影响因子
MICROCHEMICAL JOURNAL
·
2022
·
IF 5.304
Qingtao Wang,Shounian Cheng,Shufang Ren,Zhixiang Zheng
In this paper, a protocol of the integration of Cu doped porous carbon (Cu C N) and molecularly imprinted polymer (MIP) was proposed to develop a sensitive, selective, and stable electrochemical sensor toward the determination of norfloxacin (NFX). Field-emission scanning electron microscopy and transmission electron microscope, energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, Brunauer–Emmett–Teller analysis and thermogravimetric analyzer, cyclic voltammetry, and electrochemical impedance spectroscopy were used to characterize the doping materials and the MIP film. Cu N C porous carbon was prepared by high-temperature carbonizing Cu/ZIF-8 precursor. The doping of Cu into ZIF-8 allows not only enhancing the conductivity for the sensor by giving active sites, but also favors the great porous structure and active surface area by prohibiting the structure collapse of ZIF-8 polyhedron. The MIP layer was prepared by in-situ electrochemical polymerization of dual monomers of dopamine and resorcinol on glassy carbon electrode (GCE) modified by Cu N C. For the electrochemical detecting, the condition of the ratio of two functional monomers, functional monomer to template molecular, the number of electric polymerization cycles, pH, and incubation time were optimized. The proposed MIP/Cu N C/GCE sensor allows the sensitive detecting toward NFX with the linear ranges of 0.01–0.5 and 0.5–100 μM and the limit of detection of 3.33 nM (S/N = 3). In addition, the sensor has good selectivity, repeatability, reproducibility, and stability. In terms of practical application, the sensor is feasible and robust in determination of NFX in the commercially available tablet with the average recovery of 96.72 %–103.88 % and RSD less than 5 %.
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高影响因子
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