CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Meiling Xu,Linchun Nie,Jiawei Liao,Dejing Meng,Wenjing Liu,Haobo Yang,Ranhao Zhao,Qingxiang Zhou
A novel and visible ratiometric fluorescence sensor based on magnesium and nitrogen co-doped carbon dots (Mg, N-CDs) encapsulated in zeolitic imidazolate framework-8 (Mg, N-CDs@ZIF-8) was designed for effective detection of oxytetracycline (OTC), employing a “turn-off/turn-on” fluorescence sensing strategy. The blue-emission Mg, N-CDs@ZIF-8 was quenched owing to fluorescence resonance energy transfer by OTC, while the green fluorescence of OTC was significantly enhanced through the interaction of Mg 2+ and Zn 2+ with OTC, enhancing the visual tracking of OTC through a distinct blue-to-green color transition. This sensor displayed a wide linearity range (0.02 − 25 μg/mL), a low detection limit (14.2 ng/mL), and a fast response time (6 min). The validity of the sensor was successfully verified by detecting OTC in milk, honey, tap water, and lake water samples. Additionally, an expandable fluorescence sensor array was constructed for the discrimination of four tetracycline antibiotics (TCs) in real samples, indicating significant application in complex environmental samples.
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高影响因子
INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Zhenguo Wang,Tingting Chen,Zhiwen Zheng,Bocheng Su,Kangwei Wen,Lin Qin,Changqing Song,Binbin Liu,Haihong Yin
Lithium–sulfur batteries (LSBs) are regarded as a competitive candidate for future energy storage systems due to their exceptionally high theoretical capacity and energy density, but their practical use is limited by severe lithium polysulfides (LiPSs) shuttling and uncontrolled lithium dendrite growth, harming cycling stability and Coulombic efficiency. Herein, a multifunctional Ce-ZIF-8/PDA@PP separator is fabricated via in situ growth. Theoretical and experimental studies confirm it integrates synergistic functionalities from polydopamine (PDA), ZIF-8, and Ce doping. The PDA interlayer, rich in polar groups, enhances electrolyte wettability, homogenizes Li+ flux, acts as a chemical anchor and nucleation facilitator, enabling uniform Ce-ZIF-8 growth on inert PP. ZIF-8 provides uniform microporous channels for size-selective Li+ transport and LiPSs anchoring sites. Redox-active Ce3+/Ce4+ centers enable dynamic electron transfer via 4f–5d orbitals, accelerating LiPSs redox kinetics, enhancing adsorption, and regulating Li+ deposition through local electric field modulation. Consequently, symmetric cells with this separator achieve ultralong stability over 3600 h at 1 mA cm–2/1 mAh cm–2, while full cells cycle stably over 600 cycles at 1 C with 0.040% per cycle capacity decay. This study offers a robust separator strategy to concurrently address polysulfide diffusion and lithium dendrite growth in high-performance LSBs.
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PubMed
高影响因子
RARE METALS
·
2024
·Vol. 43
·期 6
·2623-2635
·
IF 9.6
Hong Fei-Fan,Shi Wei-Tao,Zhao Ruo-Lin,Fan Yi,Liu Zi-Qi,Ding Si-Zhi,Liu Hai-Zhen,Zhou Wen-Zheng,Guo Jin,Lan Zhi-Qiang
Herein, the successful preparation of a single-atom catalyst V–N–C using vanadium-doped zeolitic imidazolate framework (ZIF)-8 as a precursor is reported. The experimental results showed that the V–N–C had a good promoting effect on the hydrogen storage performance of MgH 2 , and the optimal addition amount of V–N–C was 10 wt%. The hydrogenation and dehydrogenation apparent activation energies of 10 wt% V–N–C-catalyzed MgH 2 were reduced by 44.9 and 53.5 kJ·mol −1 , respectively, compared to those of additive-free MgH 2 . The 10 wt% V–N–C-catalyzed MgH 2 could reabsorb 5.92 wt% of hydrogen in 50 min at 150 °C, with a capacity retention rate of 99.1% after 30 cycles of hydrogen absorption and desorption. Mechanism analysis showed that V–N–C was partially transformed into VN and metallic V when it was milled with MgH 2 ; the in-situ-formed VN and metallic V played an important role in improving the hydrogen storage performance of MgH 2 . This approach provides a potential solution for obtaining high-performance Mg-based hydrogen storage materials through synergistic interactions between V, N and C. Graphical abstract
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高影响因子
Desalination and Water Treatment
·
2024
·
IF 1
Gongduan Fan,Jing Luo,Israel de Jesus Lopez Prieto,Rujing Lin,Xiaomei Zheng,Liang Hong
The synthesis conditions of zeolitic imidazolate framework-8 (ZIF-8) have been optimized by a response surface method using central composite design (CCD) to obtain the high adsorption capability for the Pb(II) removal in aqueous solution. The physic-chemical properties of the as-prepared ZIF-8, such as morphology, structure and chemical composition, were characterized by field emission scanning electron microscopy (FE-SEM), powder X-ray diffraction (XRD) and energy-dispersive X-ray photoelectron spectroscopy (XPS), respectively. The adsorption capability, influence factors, isotherms, thermodynamics, kinetics and mechanism of Pb(II) in aqueous solutions were investigated. The optimal parameters of which have the highest adsorption capability for Pb(II) were 200 mL of water as the solvent, and the molar mass ratio of 2-methylimidazole and Zn(NO 3 ) 2 ·6H 2 O was 45.63. At this condition, the as-prepared ZIF-8 was a pure hexagonal three-dimensional crystal structure. The equilibrium adsorption capacity up to 668 mg/g for 300 mg/L of initial Pb(II) solutions and the adsorption was a spontaneous process. The largest adsorption capacity from Langmuir isotherm model was 686.25 mg/g. The adsorption kinetics followed the pseudo-second-order model. The equilibrium adsorption time and the optimal adsorption pH was 4 h and 6.0–7.0, respectively. The ZIF-8 still kept well adsorption effect after three times of usage. Therefore, this study showed that ZIF-8 is a promising sorbent for removing environmental pollutants.
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高影响因子
Catalysis Science & Technology
·
2026
·
IF 4.2
Kaifa Liu,Yingzi Huang,Xin Wang,Zhi Ling,Di Chen,Fengying Yan,Beili Pang,Qian Zhang,Jianhua Yu,Liyan Yu,Lifeng Dong
The performance of zinc–air batteries (ZABs) is often hindered by the limited activity and sluggish kinetics of bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). In this work, a high-performance bifunctional catalyst (FeCo-NC@rGO) was synthesized by anchoring ZIF-derived Co5.47N and CoFe nanoparticles (NPs) onto a reduced graphene oxide (rGO) aerogel, accompanied by in situ growth of carbon nanotubes (CNTs). The M–N–C sites within the carbon matrix provide abundant ORR active centers, while Co5.47N and CoFe NPs impart excellent OER activity. As a result, FeCo-NC@rGO exhibits a high ORR half-wave potential of 0.85 V (vs. RHE) and a low OER overpotential of 400 mV at 10 mA cm−2, outperforming Pt/C (0.82 V) and RuO2 (508 mV), respectively. A liquid ZAB using this catalyst achieves an open-circuit voltage of 1.51 V, a power density of 114.6 mW cm−2, a specific capacity of 838.2 mAh g−1, and stable cycling for 250 h. The solid-state ZAB also demonstrates strong performance with excellent durability. This study provides an effective and scalable strategy for developing advanced bifunctional electrocatalysts for high-performance ZABs.
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高影响因子
DYES AND PIGMENTS
·
2014
·
IF 3.468
Kun Zhou,Chao Qin,Li-Kai Yan,Wen-E Li,Xin-Long Wang,Hai-Ning Wang,Kui-Zhan Shao,Zhong-Min Su
Three silver(Ι) alkynyl compounds, [Ag 5 (C C t Bu)(CF 3 COO) 7 ( n Bu 4 N) 3 ·H 2 O] ( 1 ), [Ag 8 (C C t Bu) 2 (CF 3 COO) 10 (Et 3 N) 4 ] ( 2 ), and [Ag 12 (C C t Bu) 6 (CF 3 COO) 8 ( n Bu 4 N) 2 (Et 3 N) 2 (CF 3 COO) 2 ] ( 3 ), have been obtained. Concomitantly, isolated [Ag 5 (C C t Bu)(CF 3 COO) 7 ] 3– , [Ag 8 (C C t Bu) 2 (CF 3 COO) 10 ] 4– and [Ag 12 (C C t Bu) 6 (CF 3 COO) 8 ] 2– clusters ( Ag 5 , Ag 8 and Ag 12 for short) appear in 1 – 3 , respectively. The synthesis of 1 – 3 demonstrates silver(I) alkynyls are better systems for the study of the template effect. ESI-MS analysis indicates compounds 1 – 3 can stably exist in methanol, and they have been proved to be potential wide gap semiconductor materials by the reflectance spectra. Notably, the second hyperpolarizabilities ( γ values) of Ag 5 , Ag 8 and Ag 12 have been studied by using time-dependent density functional theory (TDDFT) calculations and the finite filed (FF) approach combining CAM-B3LYP. The calculated results show that they can be applied as potential third-order nonlinear optical (NLO) materials owing to their second hyperpolarizabilities rising from 39.1 × 10 −36 , 60.3 × 10 −36 to 97.7 × 10 −36 esu with the growth of the number of Ag atoms and C C groups.
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高影响因子
CRYSTAL GROWTH & DESIGN
·
2026
·Vol. 26
·期 15
·5988-6000
·
IF 3.6
Zhang Ge,Deng Lihan,Li Jin
Formaldehyde, a common indoor air pollutant, poses a
serious threat
to human health. Therefore, there is an urgent need to develop highly
selective and sensitive formaldehyde gas sensors that operate at room
temperature. Doping with rare-earth elements is an effectively proven
strategy for optimizing the gas-sensing performance at room temperature.
This study developed a method to modify ZnO derived from ZIF-8 by
doping it with the rare-earth element cerium (Ce). The Ce-doped ZnO
(ZCO) series of sensors inherit the shell-and-core architecture derived
from the ZIF-8 precursor, featuring a high specific surface area that
provides support for gas-sensing reactions. Additionally, Ce doping
induces the formation of more oxygen vacancies, thereby enhancing
the formaldehyde adsorption. Among these, the ZCO-2 gas sensor exhibits
the best formaldehyde sensing properties at room temperature, with
a responsiveness of 1006 for 500 ppm formaldehyde (77.4 times that
of a pure ZnO gas sensor) and a response/recovery time of 9/3 s. Because
of the high response value, fast response/recovery time, excellent
selectivity, repeatability, and stability of this gas sensor, it has
a very promising prospect in practical applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Yi-Fei Hui,Duan-Ping Hu,Yi Zhao,Shulin Li,Zhi-Feng Cai,Lin-Yi Li,Yuming Xie,Yong-Nian Zeng,Zu-Jin Lin,Fa-Qiang Tang
Sacrificial template strategy builds ZnO 2 @Hemin-ZIF-8 core-shell structure. • The seamless ZIF-8 shell prevents premature ZnO 2 leakage at physiological pH. • Hierarchical ZnO 2 @Hemin-ZIF-8@PB (ZHZHP) enables on-demand H 2 O 2 release. • ZHZHP enables dual-nanozyme cascade-based CDT and PTT to eradicate bacteria. • ZHZHP orchestrates anti-inflammation and angiogenesis to accelerate wound healing. Chemodynamic therapy (CDT) has emerged as a promising strategy for combating bacterial infections; however, the scarcity of endogenous H 2 O 2 within infection sites often bottlenecks therapeutic efficacy. Herein, a pH-responsive, H 2 O 2 self-supplying nanoplatform is meticulously engineered for spatiotemporally controlled chemodynamic–photothermal antibacterial therapy. This platform leverages ZnO 2 nanoparticles dual-role cores and sacrificial template to drive the in situ epitaxial growth of dense ZIF-8 shells (optionally encapsulated with Hemin), yielding the core–shell ZnO 2 @ZIF-8 (or ZnO 2 @Hemin-ZIF-8) intermediate. Stepwise surface engineering with hyaluronic acid (HA) and Prussian blue (PB) leads to the formation of a hierarchical core–shell structured ZnO 2 @Hemin-ZIF-8@HA@PB nanoplatform (ZHZHP). Under neutral physiological conditions, ZHZHP exhibits excellent stability as the interracially-bonded ZIF-8 shell effectively shields the ZnO 2 core from premature hydrolysis. Conversely, within the weakly acidic infection microenvironment, ZHZHP undergoes programmed disassembly, triggering the on-demand release of H 2 O 2 . Simultaneously, Hemin and PB act as peroxidase mimics to catalyze the conversion of liberated H 2 O 2 into highly toxic hydroxyl radicals (‧OH) via dual nanozyme cascades, while the PB component provides robust photothermal conversion under 808 nm NIR irradiation. This synergistic CDT/PTT approach achieves complete eradication of S. aureus and E. coli at an extremely low concentration of 50 μg mL −1 and demonstrates remarkable efficacy in disrupting both immature and mature biofilms. In vivo assays further confirm that ZHZHP significantly accelerates infected wound healing through potent antimicrobial and anti-inflammatory activities, alongside the promotion of angiogenesis. With high biocompatibility and negligible toxicity, ZHZHP represents a sophisticated strategy for the clinical management of refractory wound infections. Download: Download high-res image (156KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Weikun Sun,Jiahui Zou,Yufang Liao,Can Li,Jian Zhang,Mohammad Younas,Zumin Qiu
A Zn dosage-mediated thermal reconstruction strategy was proposed to fabricate LDH@ZIF derived catalyst. • Moderate Zn addition achieves uniformly dispersed ZnCo 2 O 4 spinel. • Optimized LZ-0.2 removes levofloxacin rapidly through multiple ROS pathways involving 1 O 2 . • The catalyst realizes stable 144 h continuous degradation in fixed-bed reactor. Peroxymonosulfate-based advanced oxidation processes (PMS-AOPs) are effective for refractory antibiotic removal, yet conventional layered double hydroxide (LDH) catalysts often suffer from lamellar collapse, active site aggregation and poor pore accessibility after calcination. Herein, a series of LDH(Co/Al)@ZIF-8 derived catalysts (LZ-x) were prepared through the growth of ZIF-8 on LDH(Co/Al), followed by pyrolysis, for PMS activation and levofloxacin (LFX) degradation. Regulating the Zn dosage controlled ZIF-8 growth and the subsequent thermal reconstruction of the hybrid precursor. Among them, LZ-0.2 exhibited an open hierarchical architecture and the highest catalytic activity, achieving 95.11% LFX removal within 5 min with a k obs of 0.576 min −1 . In addition, structural characterization indicated that an appropriate Zn dosage favored the formation and dispersion of ZnCo 2 O 4 -containing spinel domains within the porous nanosheet architecture. Meanwhile, mechanistic investigations supported a hybrid radical/non-radical oxidation pathway involving 1 O 2 , •OH, SO 4 •- and • O 2 − . Additionally, the LZ-0.2 + PMS system maintained effective performance in various real water matrices and stable fixed-bed operation for 144 h in hospital wastewater, with low Co and Zn leaching. Moreover, phytotoxicity, antibacterial activity, and zebrafish developmental toxicity were reduced after treatment. This work highlights Zn-dosage regulation as an effective strategy for directing the thermal reconstruction of LDH@MOF derived catalysts for efficient PMS activation and antibiotic abatement.
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高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2026
·
IF 5.4
Jie Xia,Liping Zhu,Yongqiang Ye,Yue Chen,Yangting Zeng,Kaiyuan Li,Fei Xiao
A facile and eco-friendly strategy was developed to synthesize IL@MOF hybrid FR. • The optimized composite achieved a UL-94 V-0 rating with a LOI value of 27.1%. • The peak heat release rate and total smoke production were reduced by −76.1% and −83.1%. • The reaction to fire and its underlying mechanisms were systematically characterized. The deployment of thermoplastic polyurethane (TPU) in high-safety applications is critically hindered by its inherent flammability and the emission of toxic smoke during combustion. To address these limitations, this study proposes a new strategy driven by structural engineering and spatial confinement. Specifically, a zeolitic imidazolate framework-8 (ZIF-8) precursor was selectively etched using an eco-friendly tannic acid to engineer a mesoporous host architecture (TZIF-8). By encapsulating a bespoke phosphorus-containing ionic liquid (PMDP) within these tailored cavities, a highly efficient inorganic-organic hybrid (PM@TZ) was synthesized. It was subsequently compounded with piperazine pyrophosphate (PAPP) to construct a synergistic fire-protection network within the TPU matrix. The optimized composite (incorporating 6.5 wt% PAPP and 1.5 wt% PM@TZ) demonstrated excellent flame retardancy, achieving a UL-94 V -0 rating alongside a limiting oxygen index (LOI) of 27.1%. Forced-flaming evaluations confirmed dramatic reductions in the peak heat release rate (−76.1%), total heat release (−62.1%), and total smoke production (−83.1%) relative to the TPU. Mechanistic investigations across the volatile and condensed phases elucidated a robust synergic reaction to fire. The liberation of active phosphorus radicals facilitates profound gas-phase flame quenching, whereas the confined ionic liquid and MOF-derived catalytic zinc nodes cooperatively accelerate the formation of a highly graphitized, heteroatom-doped (P/Zn) char barrier. In summary, this study provides a versatile structural engineering route for resolving the interfacial incompatibilities of ionic liquids, paving the way for next-generation, high-performance, fire-safe elastomers. Download: Download high-res image (170KB) Download: Download full-size image
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Keyang Feng,Da Wang,Yufan Zhang,Dini Zou,Xinyue Zhang,Chu Chu,Yan Liu,Min Xu,Wanying Zhu
Glutamate, the main excitatory neurotransmitter, exhibits release imbalance associated with epilepsy, Down syndrome, and other disorders. However, limited human tissue, interspecies differences, and inadequate in situ detection hinder mechanistic studies and interventions for glutamatergic dysfunction. Here, we constructed an integrated glutamatergic neuron-MNP@ZIF-8/ENZ platform that combines hiPSC-based directional differentiation of glutamatergic neurons on the enzyme-modified sensing surface with in situ neurotransmitter detection. Owing to the high porosity and electrical conductivity of the MNP@ZIF-8 nanocomposite, the platform exhibited a linear range of 1–50 μM (R 2 = 0.999), a detection limit of 0.76 μM, and high selectivity against common interferents such as DA, 5-HT, and Glc. After seven days of cell culture, the sensor response current retention rate is approximately 90.1%. Notably, the integrated platform was applied to Down syndrome (DS) research, revealing that depolarization-evoked glutamate release from DS patient iPSC-derived glutamatergic neurons was only approximately 28% of that from normal controls, providing direct quantitative evidence of excitatory transmitter secretion deficit in DS. This integrated sensing disease modeling platform provides a personalized, reproducible, and scalable analytical tool for disease pathogenesis research and drug screening, representing a promising technological platform.
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高影响因子
DESALINATION
·
2026
·
IF 9.9
Yongsi Xie,Jiemei Fu,Chunxue Li,Juan Luo,Rui Ma,Shichang Sun
Microwave synthesis enables atomic Fe dispersion in ZIF-8 - derived carbon. • Fe-doped carbon boosts low-concentration Li + adsorption via CDI. • Fe doping tunes porous structure and active sites. • Li + adsorption on Fe-N 4 is clarified by characterization and DFT. Lithium ions are widely present in various water resources, but their extraction has long been constrained by low lithium concentration in various water resources, necessitating the development of efficient extraction technologies. Capacitive deionization (CDI) is an emerging, energy-efficient technology for lithium recovery, yet its efficacy is largely constrained by the limited adsorption capacity of existing electrode materials. Herein, we developed a facile method to fabricate Fe N co-doped porous carbon materials (Fe-NC-M) derived from Zeolitic Imidazolate Framework-8 (ZIF-8) via a microwave-aided pyrolysis route. Microwave-assisted pyrolysis, leveraging rapid volumetric heating and selective energy absorption to achieve uniform Fe N 4 dispersion and construct a hierarchically porous carbon skeleton, effectively suppressing metal agglomeration. By modulating the Fe doping content, the electronic structure and surface chemistry of the carbon skeleton are refined, resulting in a remarkable enhancement in Li + adsorption. The optimized Fe-NC-M-150 electrode demonstrates an appreciable adsorption capacity for lithium ions, measuring 17.34 mg/g, surpassing most reported carbon-based CDI materials. Moreover, the electrode exhibits stable cyclic performance with 84.4% capacity retention after 20 adsorption-desorption cycles. A combination of physicochemical characterization, electrochemical analysis, and Density Functional Theory (DFT) calculations reveals that the Fe N 4 sites improve conductivity and ion diffusion kinetics, and provide strong coordination sites for Li + adsorption. This work provides a feasible strategy for designing high-performance CDI electrode materials toward efficient lithium resource recovery from low-concentration lithium resources. Download: Download high-res image (319KB) Download: Download full-size image
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高影响因子
危险品化学品经营许可证（带存储）