Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 42
·21029-21038
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IF 9.931
Liang Zhang,Jing Wang,Xinyi Ren,Wentao Zhang,Tianshu Zhang,Xinnan Liu,Ting Du,Tao Li,Jianlong Wang
The excessive accumulation of toxic copper species makes it imperative to develop smart dual-functional materials for the simultaneous removal and detection of Cu(II) in drinking water. In this work, novel core–shell NH2-MIL-101(Al)@ZIF-8 nanoflowers were successfully fabricated via an internal extended growth mode under the regulation of polyvinylpyrrolidone (PVP) to achieve this goal. Benefiting from the specific affinity of imidazole nitrogen in ZIF-8 toward Cu(II), the resultant NH2-MIL-101(Al)@ZIF-8 shows high adsorption capacity (526.74 mg g−1). Moreover, the fluorescence of NH2-MIL-101(Al) shows a Cu(II)-dependent change, causing this composite to possess superior selective/sensitive detection with a broad linear range (1.5–625 μM) and a low detection limit (0.17 μM) for Cu(II). Specifically, the hybrid MOF@MOF structure provides greater sensitivity as compared to the individual constituent (pristine NH2-MIL-101(Al)) and the mixed state, which is ascribed to the rational optimization of the smart adsorbent based on the following two aspects. (i) The synergistic effect of the core–shell nanostructure improves the preconcentration ability at the interface between single MOFs. (ii) The existence of the three-dimensional hierarchical nanoflower architecture (structure optimization) accelerates the mass transport and sculpts the final composite with enhanced adsorption and detection ability. These indicate that the smart NH2-MIL-101(Al)@ZIF-8 nanoflower could be an excellent candidate for the synchronous remediation and selective detection of Cu(II) in aqueous systems, which could be potentially useful in wastewater treatment and water quality monitoring.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2022
·
IF 4.326
Chenxu Wang,Feng Yu,Ke Lu,Zhimou Wang,Jie Yu,Wentao Bao,Gang Wang,Banghua Peng,Xuhong Guo
The traditional preparation methods for metal–organic framework (MOF) materials include direct mixing, solvothermal, and mechanical methods. These methods are conducted through several days of slow coordination reactions and discontinuities. Presently, pure organic solvents are used to synthesize MOFs, leading to harsh conditions for MOF synthesis. Therefore, this study used the multi-inlet vortex mixer and MeOH, EtOH, H2O, and Baijiu to synthesize the Co-MOF. They can solve the problem of the uneven macromixing and slow penetration of materials into the microchannel compared to the traditional synthetic intermittent method, while providing continuous rapid industrial magnification and other characteristics. MOF materials were synthesized using Baijiu as a solvent for the first time. Baijiu as the solvent reduced the synthetic conditions of MOF materials and allowed for the reuse of industrial ethanol wastewater, making the synthesis of MOF materials convenient. The catalyst, Co@N-C-FNP-Baijiu, prepared by carbonizing ZIF-67-FNP-Baijiu using Baijiu as the solvent has Eonset = 0.93 VRHE and E1/2 = 0.82 VRHE, which is second to the oxygen reduction reaction performance of the catalyst prepared using MeOH as the solvent. The open-circuit voltage, peak power density, and specific capacity of Zn-air batteries assembled with Co@N-C-FNP-Baijiu as cathode catalysts are similar to those of Pt/C batteries.
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CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Jianan Cui,Tingting Liu,Qian Zhang,Ting Wang,Xiaohong Hou
Various metal-based heterogeneous catalysts activated peroxymonosulfate for organic pollutants degradation are increasingly recognized as an environmentally important sewage treatment technology. In this study, polyvinyl pyrrolidone (PVP) modified Fe 3 O 4 loaded ZIF-67 magnetic catalyst with transition metal cobalt ion was prepared for the first time by microwave-assisted solvothermal (MS) method within 30 min to activate peroxymonosulfate. The microwave synthesis process changed the time-consuming shortcoming of conventional method. The catalytic activity of the synthesized Fe 3 O 4 -PVP@ZIF-67 was assessed on bisphenol F (BPF) removal. The result showed 99.8% BPF was removed under the conditions of catalyst content of 0.15 g·L −1 , PMS content of 0.3 mM, and pH without adjustment in 60 min. And the Fe 3 O 4 -PVP@ZIF-67/PMS system exhibited a quality catalytic performance when the solution pH of BPF varied from 3 to 11. Compared with humic acid (HA), inorganic anions (Cl − , H 2 PO 4 − , SO 4 2− , HCO 3 − , and CO 3 2− ) showed slight effect to the degradation system. The quenching experiment verified that the main active substance in this system was SO 4 − •. Based on the degradation intermediates identified by gas chromatography-mass spectrometer (GC–MS), the main degradation pathways were proposed for the degradation of BPF. Overall, Fe 3 O 4 -PVP@ZIF-67 as PMS activator is promising catalyst for sulfate radical-based wastewater treatment.
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CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Ming Li,Xiaofei Fan,Jianfeng Li,Jianwei Mao,Yuchen Zhang,Rujie Wang,Huining Xiao
In this study, a novel alginate-based composite hydrogel sphere embedded with zeolite imidazole framework (ZIF-8) and carbon dots (CDs) was developed for simultaneous efficient adsorption and selective detection of mercury ions (Hg 2+ ). The hydrogel spheres (Z8S-CDs) integrate the porous structure of ZIF-8 for efficient Hg 2+ adsorption and the fluorescence properties of CDs for visual detection. The adsorption capacity of Z8S-CDs reached 381.67 mg/g for Hg 2+ , significantly surpassing conventional alginate hydrogels, attributed to synergistic chemisorption and pore-filling mechanisms. Meanwhile, the hydrogel spheres exhibited selective fluorescence quenching upon Hg 2+ binding, enabling rapid detection with a low detection limit (3.63 × 10 −8 M) and high specificity against competing ions. The hydrogel spheres maintained structural stability and reusability over multiple cycles. This work provides a dual-functional platform for effective Hg 2+ removal and real-time monitoring in contaminated water, highlighting its potential for environmental remediation applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Qing Fu,Manxia Wang,Jia Shu,Guangjun Xiao,Zhujun Ai,Xin Gao,Huan Cai,Yan Zhao,Xuhuai Fu,Zhizhong Li,Mengjie Zhang,Jinzhou Feng,Juan Li,Rui Chen
Neuromyelitis optica spectrum disorder (NMOSD) is a neurological disease with rapid progression that can lead to severe visual impairment and paralysis. Rapid diagnosis at presentation significantly improves its prognosis, but there is a lack of available point-of-care testing (POCT) methods. Herein, for the first time, a colorimetric-fluorescent bifunctional nanoparticles (CFNPs)-based bimode lateral-flow immunoassay (LFIA) was developed for rapid and sensitive on-site diagnosis of NMOSD biomarker (AQP4-IgG). We first developed a novel sonochemistry-assisted strategy for the ordered self-assembly of CdTe quantum dots (QDs) using metal-organic framework (MOF) and polydopamine (PDA) flexible scaffold modification to fabricate CdTe@ZIF-8@PDA. Through rational design, the synthesis efficiency and fluorescence intensity of CdTe@ZIF-8 were 15-times and 9.67-times higher than those of the traditional synthesis method, respectively, and the colorimetric signal brightness and stability were significantly improved. The limit of detection of the CdTe@ZIF-8@PDA-labelled LFIA for AQP4-IgG titer detection by naked-eye colorimetric and smartphone-based fluorescence signal were 1:1.56 and 1:0.78, which were comparable to those of the gold standard cell-based assay (CBA). The diagnostic specificity and sensitivity for 121 clinical samples were 100 % and 82.35 % (colorimetric), and 100 % and 80.39 % (fluorescent). Our work has demonstrated an innovative strategy for constructing CFNPs and NMOSD on-site diagnostic approach that can be used for POCT.
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高影响因子
Materials Today Bio
·
2025
·
IF 10.2
Yeyang Sun,Xietao Ye,Lin Yang,Shuo Dong,Chen Chen,Yani Wang,Jianan Qiao,Congyan Liu,Yuping Liu,Yan Chen
Programmed cell death protein 1 (PD-1) inhibitors are integral to contemporary cancer immunotherapy. However, their objective response rate in microsatellite-stable colorectal cancer (MSS CRC) remains below 5 %. This limited efficacy is primarily due to insufficient tumor-infiltrating lymphocytes (TILs), a consequence of the combined effects of low tumor immunogenicity and impaired dendritic cell (DC)-mediated antigen presentation. The combination of ursolic acid (Ua) and ginsenoside Rg3 (Rg3) enhances TIL infiltration by inducing immunogenic cell death (ICD) in tumor cells and promoting DC maturation. Due to their poor oral bioavailability, an oral ZIF nanoplatform was engineered with a chitosan oligosaccharide (Cos) and inulin (In) bilayer coating [(In/Cos)@Ua-Rg3-ZIF] for targeted delivery of Ua and Rg3 to the CRC microenvironment. Efficient dual-drug co-loading was achieved with a loading efficiency of 24.07 wt%. After oral administration, the (In/Cos) coating protects the formulation from degradation in the upper gastrointestinal tract, while specific enzymatic cleavage by colonic microbiota releases Ua-Rg3-ZIF into tumor tissues. The ZIF platform responds to elevated adenosine triphosphate (ATP) in the tumor microenvironment, enabling controlled release of Ua and Rg3 to enhance cytotoxic T lymphocyte (CTL) levels. In vivo studies demonstrate that combining (In/Cos)@Ua-Rg3-ZIF with α-PD-1 results in an 80.86 % tumor inhibition rate, significantly outperforming monotherapies. This strategy presents an innovative oral delivery system capable of resisting gastrointestinal degradation and facilitating microbiota-responsive drug release, effectively enhancing antitumor immunity and improving the therapeutic outcome of immunotherapy in MSS CRC.
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DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Wenxuan Zu,Xinye Shao,Mojie Sun,Yu Sun,Ziang Liu,Xinghui He,Tianhong Zhou,Shijie Wang,Xiaojun Zhang
The frequent spills of offshore oil pose a great threat to the ecological environment and human health. Therefore, developing an adsorption material that is efficient, environmentally friendly, and easy to operate in complex environments to replace traditional technologies with low efficiency has become a major challenge in the field of oil-water separation. In this work, a green and superhydrophobic melamine sponge was first developed, inspired by lotus leaves. Then, a core-shell structure of inorganic metal oxide @ metal-organic framework (SiO 2 @ZIF-8) was synthesized by a simple sol-gel method. Finally, the structure was anchored onto the melamine sponge using low-surface-energy polydimethylsiloxane (PDMS), forming a unique hierarchical micro-nano structure. The modified sponge exhibited excellent superhydrophobicity (water contact angle = 156°) and oil adsorption capacity (ranging from 58.5 to 114.3 g/g). It still exhibited perfect mechanical properties, hydrophobicity stability, and thermal stability even under prolonged high temperatures, strong acids/bases, and multiple cycles of extreme compression. Furthermore, the material also demonstrated remarkable flame retardancy, which significantly enhances the safety of the sponge in practical applications. This study provides an efficient and sustainable practical solution for responding to oil spills, with broad application prospects.
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高影响因子
Journal of Environmental Chemical Engineering
·
2025
·Vol. 13
·期 6
·120391
·
IF 7.2
Chenshi Luo,Jingfan Chen,Runan Chen,Geer Huo,Mengyuan Zhang,Yongli Liu,Guifen Zhu
Residual chloramphenicol (CAP) in environment can have adverse effects on health of organism and ecosystems, so accurate detection and effective removal are crucial. Although molecularly imprinted polymers (MIPs) possess excellent selectivity, their pursuit of high specificity often results in relatively low adsorption capacities, restricting their practical application in large-scale pollutant removal. In order to achieve high-capacity and high selectivity adsorption of CAP, in this work, a novel molecularly imprinted polymer (ZIF-67@MIP) was synthesized by using ZIF-67, a metal-organic framework with a high specific surface area, as the carrier. The result demonstrated that the proposed ZIF-67@MIP had a superior adsorption capacity and imprinting factor of 87.80 mg g⁻ 1 and 2.35, respectively. The adsorption equilibrium can be reached within 30 min, which was consistent with the pseudo-second-order kinetic model and Langmuir isothermal model. And that the ZIF-67@MIP had strong anti-interference across a wide range of pH values (3−12) and coexisting ions, making it suitable for complex environmental matrices. Adsorption mechanism analysis verified that the excellent adsorption was attributed to the synergistic effect of π-π stacking, hydrogen bonding, van der Waals forces, hydrophobic interactions, electrostatic attraction, and the spatial matching of imprinted sites. Furthermore, the prepared ZIF-67@MIP was successfully applied to the adsorption and removal of CAP in environmental samples, with recoveries of 80.58 %-106.37 % and a detection limit of 0.001 mg L⁻ 1 . It also exhibited excellent regeneration and stability, maintaining high adsorption efficiency even after 24 cycles. Therefore, the strategy of preparing MIPs by using MOFs as carriers can significantly improve the adsorption performance of imprinting materials, which is of great significance for highly efficient removal of pollutants from the environment.
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高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Cheng Zhou,Lina Wang,Junting Sun,Hongbo Wu,Jian Zhang,Zhong Li
Enhancing oxygen reduction reaction (ORR) efficiency relies heavily on designing non-noble metal single-atom catalysts (SACs) with high-density and high-activity sites. For efficient ORR, Fe single atoms are precisely regulated and embedded into porous concave carbon derived from ZIF-8 in this work. ORR performance is significantly improved by the catalyst's concave design and microporous features, which optimize mass transfer and expose more active sites. Furthermore, the high-density, high-activity, and high-spin Fe (III) sites inside the material help to explain the increased intrinsic activity of the catalyst. Due to its unique carrier structure and iron site coordination, this catalyst exhibits outstanding ORR activity in a 0.1 M KOH solution. Additionally, zinc-air batteries constructed with this catalyst display a maximum peak power density of 151 mW cm −2 and a high specific capacity of 818 mAh g Zn −1 , outperforming Pt/C-based systems. This study presents a method for precursor treatment to efficiently and conveniently synthesize microporous carbon-based ORR SACs, aiming to advance ORR catalyst design.
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高影响因子
ACS Applied Electronic Materials
·
2023
·
IF 4.7
Yueming Xin,Haiyan Xu,Yang He,Dandan Chen,Dongcai Li,Aiguo Wang,Daosheng Sun
The regular channels and pores of metal–organic frameworks facilitate Li diffusion and insertion, reduction of polarization, and stabilization of electrolyte–electrode interfaces in lithium-ion batteries. In this paper, a thin layer of zeolitic imidazolate framework-8 (ZIF-8) with a thickness of about 2–4 nm was decorated on the surface of V2O5 by a one-step wet chemical method at room temperature. Various techniques were used to characterize the sample, including X-ray diffraction, transmission electron microscopy, field emission scanning electron microscopy coupled with energy-dispersive X-ray analysis, X-ray photoelectron spectroscopy, Brunauer–Emmett–Teller analysis, and Fourier-transform infrared spectroscopy. Cyclic voltammetry, electrochemical impedance spectroscopy, and hybrid pulse power characteristic and galvanostatic intermittent titration techniques were also used to test the electrochemical performance. The electrochemical test results showed that the capacity of V2O5@ZIF-8 was 14 and 58% higher than that of V2O5 at 0.3 and 3 C, respectively, and the capacity retention of V2O5@ZIF-8 still reached 81% after 100 cycles at 0.3 C, which means better structural stability and excellent rate performance of V2O5@ZIF-8. High-speed ion channels of V2O5@ZIF-8 led to smaller polarization. The overpotential of oxidation–reduction from V2O5@ZIF-8 reduced the maximum by more than 90%. The intervention of the porous coating prevented the erosion of V2O5 by the electrolyte and maintained the structure stability. This work aimed to improve the overall electrochemical performance of lithium-ion batteries and provided guidance for future research.
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高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Parviz Sukhrobov,Sodik Numonov,Xamxikamar Mamat,Yongtao Li,Thomas Wågberg,Guangzhi Hu
The present study demonstrated a highly sensitive non-enzymatic glucose biosensor in real blood samples based on simple evaluated nickel deposited on N-doped porous carbon modified glassy carbon electrode (Ni/NPC/GCE) by applying electrochemical deposition method. The prepared material initially were characterized by cyclic voltammetry, the morphology structure of the as-prepared samples was observed by SEM, and composition, crystals structure of Ni/NPC were identified by SEM mapping and EDS tests. The Ni/NPC/GCE compared with NPC/GCE and NiNPs/GCE performed the best electrocatalytic behavior towards oxidation of glucose in 0.1 M KOH medium. By applied potential of +0.6 V Ni/NPC/GCE showed very high sensitivity of 3753.78 μAmM -1 cm -2 in linear range of 1-7940 μM with the correlation coefficient of R 2 =0.995. The linear ranges get views above the concentration up to 7940 μM with the detection limit of 0.3 μM (S/N=3). Amperometric time responses of prepared electrode towards different glucose concentrations are 0.8-1.3s. Finally, several positive characteristics such as very high sensitivity, weak working potential, nice anti-interference properties, long stability, good selectivity, and comparison with some other non-enzymatic sensors Ni/NPC/GCE executed high sensitivity, low detection limit and wide linear range to glucose sensing, thus the selected electrode is supplying for future glucose level determination design.
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高影响因子
Nano Research
·
2020
·Vol. 13
·期 8
·2259-2267
·
IF 8.183
Lei Zhiwen,Shen Jinlai,Zhang Weide,Wang Qingrong,Wang Jun,Deng Yonghong,Wang Chaoyang
The incorporation of inorganic fillers into poly(ethyleneoxide)(PEO)-based solid polymer electrolytes (SPEs) is well known as a low-cost and effective method to improve their mechanical and electrochemical properties. Porous zeolitic imidazolate framework-8 (ZIF-8) is firstly used as the filler for PEO-based SPEs in this work. Due to the introduction of ZIF-8, an ionic conductivity of 2.2 × 10 −5 S/cm (30 °C) is achieved for the composite SPE, which is one order of magnitude higher than that of the pure PEO. ZIF-8 also accounts for the broader electrochemical stability window and lithium ion transference number (0.36 at 60 °C) of the composite SPE. Moreover, the improved mechanism of ZIF-8 to the composite SPE is investigated by zeta potential and Fourier transform infrared spectrograph characterizations. The stability at the composite SPE/lithium interface is greatly enhanced. The LiFePO 4 ||Li cells using the composite SPE exhibit high capacity and excellent cycling performance at 60 °C, i.e., 85% capacity retention with 111 mA·h/g capacity retained after 350 cycles at 0.5 C. In comparison, the cells using the pure PEO show fast capacity decay to 74 mA·h/g maintaining only 68 capacity. These results indicate that the PEO-based SPEs with ZIF-8 are of great promise for the application in solid-state lithium metal batteries.
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高影响因子
危险品化学品经营许可证（带存储）