JOURNAL OF FOOD COMPOSITION AND ANALYSIS
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2025
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IF 4.6
Peipei Zhou,Qi Jing,Huili Wang,Xuedong Wang,He Mei
Increasing polycyclic aromatic hydrocarbons (PAHs) pollution in dietary is becoming a significant worldwide problem due to their direct threat to human health. To achieve rapid and sensitive detection of PAHs, nanocomposites were fabricated by confining ionic liquids (ILs) within magnetic covalent organic frameworks (MCOFs). After the confinement of [C 8 MIM][PF 6 ] into MCOFs, the resulting MCOF@8 C maintained high crystallinity comparable to that of the pristine MCOF, limited the diffusion of ILs and reduced the aggregation effect caused by their high viscosity. The MCOF@8 C/HPLC-FLD method gave low detection limits (0.01-0.15 µg kg -1 ), good recoveries (85.32-99.57%) with RSDs ≤ 5.03% for seven PAHs congeners across five types of edible oils. In general, this study not only provides an excellent substitute for conventional multifunctional composites, but also develops a superior methodology for monitoring trace-level PAHs in complicated food matrices.
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高影响因子
APPLIED SURFACE SCIENCE
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2019
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IF 5.155
Li Feng,Shengtao Zhang,Yao Lu,Bochuan Tan,Shijin Chen,Lei Guo
The synergistic corrosion inhibition performance of 3, 3′-Diethylthiadicarbocyanine iodide (DI) and Thioflavin T (TT) for copper in 0.1 M HCl solution was investigated by electrochemical methods , weight loss tests and SEM . Besides, through the thermodynamics and kinetics analysis , the effects of temperature and concentration were explored. The XPS was also applied to study synergistic inhibition mechanism between anions and cations of ionic liquid . The results indicated that the inhibitor molecules interacted with copper forming protective film to inhibit corrosion by physical and chemical adsorption , also the organic cations and halogen ions had synergistic corrosion inhibition. With theoretical calculation and molecular dynamics simulation, the experiment validity was further assessed.
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ELECTROCHIMICA ACTA
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2026
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IF 5.8
Zhuqin Gui,Jiamei Zhu,Bingqian Liu,Xiaoming Yue,Junsheng Zhu
The crystal structure of PVDF is regulated by phase regulation engineering, which optimizes the ion transport kinetics and improves the interface compatibility of electrolytes. • The introduction of PMMA reduced the binding energy between polymers and ions from 52 to 16 kJ·mol -1 , which enhanced the migration movement of ions. • The optimized PVDF/PMMA iongel electrolyte achieves a high ionic conductivity of 4.115 mS cm -1 via a continuous ion diffusion pathway. The ion transport kinetics in poly(vinylidene fluoride) (PVDF)-based ion-gel polymer electrolytes (IGPEs) are limited by the polymer's high crystallinity and intrinsic phase separation, which impede ion dissociation and diffusion in supercapacitors. Herein, poly(methyl methacrylate) (PMMA) is incorporated into the PVDF matrix containing 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF 4 ), which effectively disrupts crystalline domains and mitigates phase separation, establishing a homogeneous amorphous architecture with percolated ion migration pathways. Combined experimental and theoretical analyses reveal that PMMA reduces the polymer-ionic liquid binding energy, promoting ion-pair dissociation and increasing free charge carrier concentration. The optimized IGPE exhibits an enhanced ionic conductivity of 4.115 mS cm -1 and it achieved a specific capacitance of 39.01 F g -1 at 0.1 A g -1 . Meanwhile, its rate capability and cycling stability are optimized. DFT and MD calculations further confirm that PMMA weakens the Coulombic association between BMIM + and BF 4 - ions and enhances their self-diffusion coefficients, thus accelerating overall ion transport. This work provides fundamental insights into the ion transport mechanism of ionic liquid-based IGPEs, offering valuable guidance for the rational design of high-performance solid gel electrolytes. Download: Download high-res image (417KB) Download: Download full-size image
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CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Shu Wang,Lifang Chen,Chuxin Qi,Zhen Song,Xiang Zhang,Zhiwen Qi
Dual-role ILs act as solvent and PTC for efficient aromatic O,S-glycosidations. • Multilevel screening and experimental validation identify the optimal IL. • Screened optimal IL achieves superior performance with various acceptors. • Mechanism analysis reveals the intensification mechanism.Provide a general strategy for screening ILs in aromatic O,S-glycosidations. Aromatic O,S-glycosidations between (thio)phenols and glycosyl halides are valuable for synthesizing aromatic O,S-glycosides but often limited by immiscible reactants. This work presents a reaction intensification strategy for efficient O,S-glycosidations by using dual-role ionic liquids (ILs) that act as solvent and phase transfer catalyst (PTC). Taking the reaction between 4-nitrophenol and 2,3,4,6-tetra-O-acetyl-α-D-galactopyranosyl bromide to form p-nitrophenyl-2,3,4,6-tetra-O-acetyl-beta-D-galactopyranoside as an example, multilevel computational screening, experimental validation, and comprehensive mechanistic analysis are performed to identify the optimal dual-role IL and understand the explicit intensification mechanism. Specifically, 11,890 IL candidates are first screened as solvents via solubility indicators and physical properties. The easiness of formation and hydrophobicity of ion pairs transferring the liquid–liquid interface are considered to screen ILs as PTCs. After these, 36 potential ILs are filtered out. Considering the availability, 1-octyl-3-methyl-imidazolium tetrafluoroborate is eventually tested via experiment and achieves the best performance. Compared with the basecase IL reported previously, the yield is improved from 34.2 % to 53 %. Meanwhile, this IL exhibits far more superior catalytic efficiency with different acceptors. The acceptors involved are common phenols (i.e., 4-nitrophenol, phenol and p-Cresol) and thiophenols (i.e., 4-methylbenzenethiol, 4-nitrobenzenethiol), which corresponds to O- and S-bridge products, respectively. Mechanism analyses reveal that the reaction is mainly intensified through the extraction effect of ion pair led by the IL, which promotes ion pair transfer from aqueous phase to IL phase and thus leads to better contacts of reactants and catalytic efficiency. Clearly, this work offers useful guidance to screen dual-role ILs as solvent and PTC for efficient aromatic O,S-glycosidations.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Yong Xiang,Sihan Ai,Haofeng Zhou,Jialin Chen,Daoyong Yu,Baosheng Ge,Fang Huang
Despite being a mature technology, the large-scale deployment of amine-based solvents for post-combustion carbon capture is limited by their high energy demand for regeneration, slow absorption-desorption kinetics, and susceptibility to degradation, underscoring the need for more efficient and viable solutions. This study developed an innovative hybrid absorption system that synergistically integrated monoethanolamine (MEA) with imidazolium-based ionic liquids (ILs) and zeolitic imidazolate frameworks (ZIFs) to overcome these limitations. Through systematic optimization of MEA-IL binary blends and the subsequent incorporation of ZIFs, the optimal types and concentrations of ILs and ZIFs were identified, along with key process parameters. The resulting selected formulation, 30 wt% MEA blended with 0.15 g/mL [BMIM][Br] and 0.125 g/mL ZIF-67, delivered substantial performance gains compared to 30 wt% MEA benchmark. The maximum absorption rate and capacity increased by 106.4% and 76.3%, respectively, while the desorption rate and capacity were enhanced by 51.1% and 63.4%. 13 C and 1 H NMR spectroscopy provided clear evidence of the chemical transformations during absorption, enabling the proposal and confirmation of a novel synergistic mechanism in which ILs and ZIFs complementarily enhance the capture process. Moreover, the developed composite system retained over 80% of its initial capacity over six consecutive cycles and showed reliable performance in scale-up experiments up to 40× the baseline, confirming its robustness for industrial implementation. This work elucidates the synergistic mechanisms underlying the MEA-IL-ZIF system and demonstrates its potential as a scalable, energy-efficient, and durable solution for industrial CO 2 capture.
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高影响因子
APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Pengjun Wang,Yang Rui,Tianli Hui,Tao Zheng,Rui Zhang,Xianghai Meng,Xiangping Zhang,Zhichang Liu,Haiyan Liu
Functionalized ionic liquids (FILs), as novel catalysts, offered a promising way for synthesizing methylacrolein (MAL) from formaldehyde (FA) and propionaldehyde (PA) via Mannich reaction. However, the high dosage and the difficulty in separating and recycling of FILs hindered their practical application in industry. Although immobilization of FILs onto solid supports can partially address these issues, it often leads to a significant loss of catalytic activity. To address these challenges, this work developed an immobilized functional ionic liquid catalyst ([HDEA]Ac/SG) with exceptional structural stability and high catalytic activity via sol–gel method. Taking advantage of the abundant surface hydroxyl groups of silica gel and hierarchical porosity, [HDEA]Ac was firmly immobilized within the support through interfacial hydrogen bonding and confinement effect. Benefiting from the reduced mass transfer resistance of reactants and products, the enhanced FIL dispersion in support, and the increased FIL site accessibility endowed by the hierarchical porous structure of silica gel, the [HDEA]Ac/SG catalyst achieved a PA conversion of 91.2 % and a MAL yield of 80.2 %, the highest values reported to date for heterogeneous systems. In situ FT-IR and Raman spectroscopy confirmed that the reaction mechanism over [HDEA]Ac/SG follows a typical Mannich pathway, analogous to that in homogeneous systems. The catalyst exhibited excellent recyclability and retained its catalytic activity after at least 10 cycles. This work provides a cost-effective and environmentally benign strategy for designing stable and efficient Mannich reaction catalysts, bridging the performance gap between homogeneous and heterogeneous systems in the synthesis of MAL from FA and PA.
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高影响因子
ACS Omega
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2026
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IF 4.3
Yimei Tang,Qian Bai,Tian Tian,Benquan Hu,Jian Zhang,Bo Zhang,Maofang He,Yuzhen Zhang,Jinjuan Li
To improve the bioavailability of ketoprofen and reduce its clinical risks, this study combined density functional theory (DFT) calculations with experiments and investigated the structure–activity relationship of ketoprofen-based ionic liquids (ILs). Using ketoprofen as the anion and choline, 1-butyl-3-methylimidazole, and benzalkonium as the cations, ketoprofen-based ILs were prepared through a two-step method. Their structures, solubilities, critical micelle concentrations (CMC), cytotoxicity, etc., were determined. The results show that the physical and chemical properties of the ketoprofen-based ILs have changed significantly. For example, their critical micelle concentrations in ethanol and water are 10–6 and 10–5 mol·L–1, respectively, and their solubility (converted to ketoprofen) is more than 103 times that of ketoprofen in water. The IC50 values exhibited the low cytotoxicity of the ketoprofen-based ILs, which was better than 100 μM. The DFT calculation results show that the difference in dipole moments between ketoprofen-based ILs is not significant, but the dipole moment of ketoprofen-based ILs is much larger than that of ketoprofen, which may lead to an increase in the solubility of ketoprofen-based ILs. Both DFT calculations and experimental results indicate that the stronger the ion-pair interaction energy of ILs, the higher their melting points and decomposition temperatures. These preliminary research results can lay a foundation for the application research of ketoprofen ILs (including ketoprofen choline gel and the pharmacokinetics of ketoprofen choline).
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PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2014
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IF 2.354
Ni Cheng,Xiaoyuan Ma,Xiang Sheng,Tao Wang,Rui Wang,Jingjing Jiao,Li Yu
Two structurally similar imidazolium-based anionic surface active ionic liquids (SAILs) with double hydrocarbon chains, viz. 1-butyl-3-methylimidazolium bis(2-ethylhexyl) sulfosuccinate (C 4 mim-AOT) and 1-butyl-3-methylimidazolium bis(2-ethylhexyl) phosphate (C 4 mim-DEHP), were synthesized by a straightforward ion-exchange technique. A comparative investigation of their aggregation behavior with the corresponding traditional anionic surfactants, sodium bis(2-ethylhexyl) sulfosuccinate (Na-AOT) and sodium bis(2-ethylhexyl) phosphate (Na-DEHP) in aqueous solution was performed in detail by surface tension, electric conductivity, fluorescence spectra and dynamic light scattering measurements. The critical micelle concentration (CMC) values for the surfactants with double hydrocarbon chains obtained by different techniques are in good agreement. The surface activity of C 4 mim-AOT and C 4 mim-DEHP is superior to that of the corresponding traditional anionic surfactants, Na-AOT and Na-DEHP. It is also found that for anionic SAILs the nature of the anionic active group is a dominant factor in the determination of their aggregation behavior in aqueous solution, e.g. CMC and aggregation number, while the introduced organic cation plays a minor role. Theoretical calculations show that more conformations and electronegativity for DEHP anion leads to higher aggregation number and CMC values for C 4 mim-DEHP. This work is expected to be of practical values for the environmental friendly anion SAILs in nanomaterial synthesis and phase separation, etc.
研究领域:
物理化学
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胶体与界面化学
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纳米材料合成
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环境友好材料
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分子自组装
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高影响因子
CARBOHYDRATE POLYMERS
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2026
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IF 13.2
Wang Zhao,Nuo Xu,Hao Hu,Cheng Xu,Pengwei Zhang,Zepeng Lei,Xiaohui Wang
Developing efficient solvent systems to overcome cellulose recalcitrance is pivotal for its valorization. While ionic liquids show promise, the role of cationic architecture in modulating solvation mechanisms remains underexplored. This study investigates a series of amphiphilic ionic liquids (AILs) with evolving cationic cores, from monocyclic imidazoles to bicyclic superbases (DBN, DBU), to elucidate their impact on cellulose processing. We identify a dual-action synergistic mechanism: the transition to superbase cores not only amplifies the basicity of chloride anions for hydrogen-bond disruption via charge delocalization but also enhances hydrophobic dispersion forces between the expanded cation and cellulose pyranose rings, preventing re-aggregation. Among these, [DBNC 10 ]Cl emerges as the optimal solvent, achieving rapid, complete dissolution due to its balanced basicity and viscosity. Regenerated films exhibit high transparency (∼87%), superior oxygen barrier properties, and mechanical strength comparable to engineering plastics (∼115 MPa). Furthermore, the process demonstrates sustainability through high solvent recovery (>91% after 15 cycles) and rapid biodegradability. This work establishes a molecular design principle for cationic engineering to tailor noncovalent interactions for high-performance cellulose materials.
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PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2026
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IF 2.4
Huaiwen Fan,Huiqin Zhou,Zhe Wu,Yongbo Chen,Qunsheng Li,Hongkang Zhao
The isobaric vapor–liquid equilibrium experiments for the methyl acetate + methanol + ionic liquids (ILs) system were conducted at atmospheric pressure, with 1-butyl-3-methylimidazolium acetate ([BMIM][Ac]), 1-ethyl-3-methylimidazolium acetate ([EMIM][Ac]), and 1-ethyl-3-methylimidazolium dimethyl phosphate ([EMIM][DMP]) employed as entrainers. The ILs exhibit a significant salting-out effect on methyl acetate, resulting in a substantial increase in the relative volatility of methyl acetate with respect to that of methanol. The results show that all three extractants could effectively break the azeotrope of methyl acetate + methanol. The NRTL model was selected to correlate the experimental data, yielding an average relative deviation (ARD) of 3.19% for the binary methyl acetate + methanol system. For the ternary systems of methyl acetate + methanol + [BMIM][Ac], methyl acetate + methanol + [EMIM][Ac], and methyl acetate + methanol + [EMIM][DMP], the ARDs were 1.53%, 4.10%, and 4.04%, respectively, which indicates the good applicability of the NRTL model for the investigated systems.
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高影响因子
ACS Applied Materials & Interfaces
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2026
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IF 7.8
Jia Song,Xinyu Wang,Min Deng,Zikang Qin,Yi Shen,Lin Yang,Wenju Jiang,Lu Yao,Junfeng Zheng,Zhongde Dai
Efforts for the enhancement of membranes for efficient gas separation are crucial to address challenges in carbon capture and hydrogen economy applications. A novel pore engineering strategy for CMS membranes via ionic liquids (ILs) is presented in this work. Analysis revealed that [Emim][Tf2N] functioned as a porogen and a structural modulator during carbonization, creating interconnected pore channels that facilitated efficient gas transport pathways while enabling appropriate d-spacing (3.55 Å) and precise pore formation (2.5–3.5 Å) for size-sieving of H2 (2.89 Å) and CO2 (3.3 Å). By optimizing the [Emim][Tf2N] loading and carbonization temperature, the optimal membrane with 3 wt % ILs under 550 °C (PI-3[Emim][Tf2N]-550) exhibited a simultaneous enhancement of both high permeability (H2 = 10883.1 Barrer; CO2 = 5697.6 Barrer) and selectivity (H2/N2 = 83.4, H2/CH4 = 113.7, CO2/N2 = 39.8, and CO2/CH4 = 45.5), surpassing the latest Robeson upper bound. Furthermore, the membrane exhibited superior antiplasticization properties and remained stable over 7 days, which was promising for practical H2 and CO2 separation applications.
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PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Chen Tan,Ziqing Liang,Tingting Xiao,Gary Histand,Dongen Lin
Latent curing agents are crucial in one-component epoxy resin formulations; however, the variety of liquid-state ionic liquid latent curing agents remains limited. In this study, a series of novel liquid imidazolium-carboxylate ionic liquids (ICILs) based on 1-methylimidazole (MIM) were developed. These ICILs exhibited excellent miscibility and storage stability with epoxy resin (E-51). At an optimal mass ratio of 5:100, one of the ICILs with CF 3 COO − efficiently cured the epoxy resin at 154 °C and demonstrated a workable pot life that exceeded 27 days. The curing mechanism study by nuclear magnetic resonance (NMR) indicates that the ICILs' anion attacks the epoxy group to initiate ring-opening polymerization. Compared to the MIM/E-51 thermosetting system, the ICILs/E-51 system yields thermosets with superior mechanical property while maintains excellent thermal stability and hydrophobic property. The synthesized ICILs not only serve as potent latent curing agents but also provide valuable insights for the design of next-generation latent curing agents.
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高影响因子
危险品化学品经营许可证（带存储）