FUEL
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2025
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IF 7.5
Menglong Niu,Jiabin Zheng,Yuhang Fang,Ben Niu,Zheng Fan,Xiaogang Shi
The feasibility of effectively oxidizing polycyclic aromatic hydrocarbons (PAHs) in coal tar (CT) to high-value products using five traditional oxidants and the ionic liquid [Et 3 NH] [HSO 4 ] was investigated, and relevant methods were established. The results showed that the oxidation effects of the six oxidants on CT were different. In terms of the yield of target products and the ease of separation, [Et 3 NH][HSO 4 ] performed the best, with a target product yield of 18.72%. Based on the experimental results, several oxidation products were characterized, and the area of characteristic functional groups increased by 200% after oxidation, with the area of characteristic carbon signals accounting for 10%. Further kinetic analysis indicated that the oxidation of PAHs in CT does not conform to first-order kinetics, and its oxidation rate is mainly determined by reaction temperature, time, and the concentration of IL. Moreover, the results showed that there is a maximum yield of target products in the oxidation of CT by IL.
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产品关联
DOI
高影响因子
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
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2020
·
IF 2.734
Jing Yuan,Jieyu Wu,Tianxiang Yin
Ionic liquids have recently been found to be effective ingredient in formulation of transdermal drug delivery system . In this work, we synthesized two cholinium-animo acid based ionic liquids CHAAILs, cholinium glycinate [Ch][Gly] and cholinium analinate [Ch][Ala], and investigated their ability to enhance the solubility and permeation of model drug ibuprofen . The solubility measurements showed that slight amount of CHAAILs can significantly increase the solubility of ibuprofen. Besides, the effective enhancement of permeation of ibuprofen across polyethersulfone (PES) membrane was clearly presented at low concentration (0.8 wt%) of CHAAILs. It is more valuable that the addition of CHAAILs brings little cytotoxicity. Therefore, [Ch][Gly] and [Ch][Ala] can be served as green and effective constituents in transdermal drug delivery system.
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DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2014
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IF 2.235
Qin Wu,Min Wang,Yu Hao,Hansheng Li,Yun Zhao,Qingze Jiao
Catalytic reaction of methylal (DMM) with trioxane (TOX) for preparation of polyoxymethylene dimethyl ethers (PODMEn, CH3O(CH2O)nCH3, where n > 1) was investigated in a series of Brønsted acid ionic liquids with alkanesulfonic acid groups. The structures, acidities, and properties of ionic liquids were experimentally characterized and theoretically analyzed. The Brønsted acidity–activity correlation for the ionic liquids was studied. Among all these ionic liquids, 1-(4-sulfonic acid) butylpyridinium hydrogen sulfate ([PY-BS][HSO4–]) exhibited the best catalytic performance, which was ascribed to its strong Brønsted acidity. The influences of ionic liquid dosage, molar ratio of DMM to TOX, and reaction temperature on the catalytic reaction were explored using [PY-BS][HSO4–] as the catalyst. Under the optimal conditions of n(methylal):n(trioxane):n(ILs) = 180:60:1, 170 °C, and 10h, the conversion of trioxane and the selectivity of PODME3–8 were as high as 91.18% and 70.90%, respectively. The ionic liquid [PY-BS][HSO4–] could be reused.
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2013
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IF 2.108
Zhiping Du,Enze Li,Yang Cao,Xiang Li,Guoyong Wang
The aggregation behavior of two trisiloxane-tailed surface active ionic liquids (ILs), 1-methyl-3- trisiloxaneimidazolium chloride ([Si(3)Mim]Cl) and trisiloxanepyridinium chloride ([Si(3)Py]Cl), in aqueous solution was investigated by the measurement of surface tension, electrical conductivity, transmission electron microscopy (TEM), dynamic light scattering (DLS), and X-ray diffraction (XRD). The surface tension measurement showed the critical aggregation concentration (cac) of [Si(3)Mim]Cl and [Si(3)Py]Cl is 15.5 and 24.8 mmol l −1 respectively, and the corresponding surface tension at cac ( γ cac ) is 23.8 and 23.0 mN m −1 , respectively. The phenomenon was mainly ascribed to the branched trisiloxane hydrophobic moieties and these results demonstrated that the surface activity of these trisiloxane-tailed ILs was somewhat superior to that of conventional ILs. The vesicular-like structure of the aggregates was observed by TEM while DLS provided the diameter distribution of these aggregates. In addition, a probable two-layered arrangement of molecules in aggregates for the two ILs in aqueous solution was proposed based upon the results of XRD studies. This investigation may contribute to expand understanding of trisiloxane-tailed ILs. Furthermore, high thermal stability of such compounds may improve their potential applications in the fields of colloids and interfaces science.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Wenjun Zhang,Tingyan Ye,Shuangjiang Li,Yiyan Liu,Xiliang Li,Juan Li,Yunfei Zhi,Tianding Hu,Donghui Liu,Shaoyun Shan,Yi Liu
Incorporating hydrogen bond donor (HBD) groups into poly(ionic liquids) (PILs) has emerged as an effective strategy to enhance their catalytic performance in the cycloaddition of CO 2 and epoxides. However, developing polymeric catalysts that combine a high density of ionic sites with tunable HBD functionalities remains challenging. Accordingly, this study adopts a synergistic functional design strategy to construct bifunctional PILs catalysts bearing either hydroxyl or carboxyl groups on imidazolium and pyridinium backbones via a facile two-step synthetic route. In the cycloaddition of CO 2 and epoxides, all HBD-functionalized PILs exhibited significantly enhanced catalytic activity. Among them, the carboxyl-functionalized imidazolium-based PIL (PIMIBr-COOH) demonstrated the highest performance, affording a 95 % yield of chloropropylene carbonate (CPC) under relatively mild conditions (90 °C, 4 h, 0.5 MPa CO 2 ). In addition, PIMIBr-COOH exhibited excellent recyclability and broad substrate scope. Density functional theory (DFT) calculations revealed that the HBD groups effectively activate epoxide substrates. In situ FT-IR spectroscopy further revealed the critical nucleophilic role of bromide ions (Br - ) in facilitating the epoxide ring-opening process. Based on these findings, a plausible reaction mechanism was proposed for the PIMIBr-COOH catalyzed cycloaddition of CO 2 and epoxides, involving epoxide activation, nucleophilic ring opening, and cyclic carbonate formation through the synergistic interaction between the carboxyl group and Br - . This work not only elucidates the catalytic mechanism but also provides theoretical guidance for the functional design of ionic polymer catalysts toward efficient and sustainable CO 2 valorization.
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
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2015
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IF 2.679
Yujuan Chen,Kelei Zhuo,Jing Chen,Guangyue Bai
Apparent molar volumes V Φ ,DIL and viscosity B -coefficients of the dicationic ionic liquids (DILs) in {glucose (Glc) + water} solutions were determined from density and viscosity measurements at T = 298.15 K. Limiting apparent molar volumes V Φ ,DIL 0 of the DILs, volumetric interaction parameters, and activation energies Δ μ DIL 0 ≠ were also obtained, together with the contributions of the solvent property B 1 and the dicationic ionic liquid – solvent interaction B 2 to the B -coefficient. A linear relation was observed between V Φ ,DIL 0 and the number of methylene groups n (CH 2 ) in the alkyl linkage chain of DILs. Volumetric interaction parameters and B 2 values are positive and increase with increasing the length of alkyl linkage chain of the dication. The DIL – glucose interactions were discussed in terms of the size and solvation of the DILs and glucose.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2023
·Vol. 141
·期 10
·e55068
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IF 3
Zhu Mian,Wang Bin,Lv Chao,Yu Zhenhui,Jingxian Liu
Gas separation membranes offer a cost-effective solution for capturing greenhouse gases, mitigating the global greenhouse effect. Ionic liquids (ILs) have emerged as one of the promising materials for greenhouse gas separation due to their strong affinity for CO 2 . In this study, we propose a laboratory-scale method for preparing IL–PVDF blend membranes with high CO 2 /N 2 selectivity. The separation performance of the membranes was evaluated using a custom gas permeation measurement system. The effects of casting solution composition, solidification method, and film-forming processes on separation performance were experimental investigated, and the obtained experimental data were used to train a back propagation neural network (BPNN) optimized by the Gray Wolf Optimizer (GWO) algorithm. This hybrid GWO–BPNN model was utilized to predict separation membrane efficiency, optimize the film-forming process, and identify the optimal range of process parameters. Notably, the GWO–BPNN model demonstrated a 2.76% higher prediction accuracy compared to a standalone BPNN. The results indicated that the GWO–BPNN algorithm has a great potential to accurately predict membrane separation efficiency and apply in optimal membrane process design (OMPD), and this method can significantly reduce the number of experimental trials required to achieve OMPD.
研究领域:
材料科学
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化学工程
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环境科学
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膜分离技术
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计算材料学
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DOI
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
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2017
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IF 2.726
Jiao Ren,Zhiyong Li,Jing Liu,Yuanchao Pei,Huiyong Wang,Jianji Wang
Searching for environmentally friendly aqueous two-phase systems is imperative for the sustainable development of separation technologies. In this work, five kinds of environmentally benign choline derivative ionic liquids were synthesized and used for the formation of aqueous two-phase systems with K 3 PO 4 , K 3 C 6 H 5 O 7 or K 2 CO 3 . In order to understand the phase formation processes of these aqueous two-phase systems and their possible application in extraction, phase diagrams and partition coefficients of purine alkaloids were determined at T = 298.2 K, and the effects of structure of the ionic liquids, nature of the purine alkaloids, composition and temperature of the systems on the partitioning behaviour of purine alkaloids were investigated systematically. It was shown that caffeine, theobromine and 2,6-amino purine could be extracted effectively into the ionic liquid-rich phase of the aqueous two-phase systems, and the partition coefficients were as high as 4.5–42 under the optimized conditions. The partitioning was found to decrease with the increase of the ratio of H 2 O weight fraction (in the ionic liquid-rich phase and in the salt-rich phase) and hydrophobicity of both the purine alkaloids and the ionic liquids, but not sensitive to the change of temperature.
研究领域:
分离科学
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绿色化学
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离子液体
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化学工程
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分析化学
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DOI
高影响因子
APPLIED SPECTROSCOPY
·
2016
·
IF 1.798
Xing Dong,Yunchang Fan,Peng Yang,Jichuan Kong,Dandan Li,Juan Miao,Shaofeng Hua,Chaobing Hu
The inhibitory effects of nine ionic liquids (ILs) on the catalase activity were investigated using fluorescence, absorption ultraviolet-visible spectroscopy. The interactions of ILs and catalase on the molecular level were studied. The experimental results indicated that ILs could inhibit the catalase activity and their inhibitory abilities depended on their chemical structures. Fluorescence experiments showed that hydrogen bonding played an important role in the interaction process. The inhibitory abilities of ILs on catalase activity could be simply described by their hydrophobicity and hydrogen bonding abilities. Unexpected less inhibitory effects of trifluoromethanesulfonate (TfO−) might be ascribed to its larger size, which makes it difficult to go through the substrate channel of catalase to the active site.
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Jing Ma,Ziyan Yang,Yaxuan Du,Jun Wu,Jiali Li,Zhongfeng Geng,Zhaobang Zhang,Jing Zhu
The development of efficient and eco-friendly catalysts for the conversion of CO2 and propylene oxide (PO) to propylene carbonate (PC) is vital for carbon-neutral goals. To overcome the corrosion and environmental issues of halogenated ionic liquids (ILs), two novel halogen-free ILs were designed by pairing a p-toluenesulfonate anion with a carboxyl- or ether-functionalized 1-butyl-3-methylimidazolium cation. The carboxyl-functionalized IL, [HCPMIM][p-TSA], showed superior performance, achieving 98.60% PO conversion and 98.21% PC selectivity. Density functional theory (DFT) calculations confirmed its strong hydrogen-bond-donating ability, which led to the lowest energy barrier in the rate-determining step, consistent with the experimental data. This study provides a theoretical basis for designing efficient halogen-free catalysts and elucidates the reaction mechanisms.
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2026
·
IF 2.4
Yongbo Chen,Niangeng Wu,Hao Liu,Huaiwen Fan,Qunsheng Li,Hongkang Zhao
This study examines the vapor–liquid equilibrium (VLE) of the butyl acetate + butanol binary system and the corresponding ternary mixtures containing [EMIM][OAC], [EMIM][Cl], or [BMIM][OAC]. The results show that [EMIM][OAC] and [BMIM][OAC] enhance the separation driving force and effectively eliminate azeotropic behavior. Among the tested ionic liquids, [EMIM][OAC] provides the strongest enhancement. The phase equilibrium data were correlated with the NRTL model, yielding average relative deviations (ARDs) of 4.80% for the binary system and 3.48, 3.65, and 3.57% for the ternary systems. Thermodynamic consistency tests further support the reliability of both the experimental data and the fitted model. Overall, these findings highlight the potential of ionic liquids (particularly [EMIM][OAC]) to improve separation efficiency in azeotropic systems.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Sicheng Su,Wenli Miao,Zejia Zhao,Chaocan Zhang,Lili Wu,Wanyu Chen
Ionogels, combining ionic conductivity with soft mechanical properties, have shown broad prospects in wearable electronics and flexible bioelectronic devices. However, conventional ionogels predominantly rely on imidazolium-based ionic liquids, which suffer from potential biotoxicity, limited degradability, and challenges in achieving multifunctional integration. Herein, a green strategy is proposed to construct high-performance ionogels by developing bio-ionic liquids from natural small biomolecules. Through the cooperative action of multiple noncovalent interactions, l -carnitine and citric acid were combined to form a biocompatible ionic liquid, which was subsequently introduced into a poly(vinyl alcohol)-polyethyleneimine network to fabricate an ionogel via a freeze-thaw-induced physical crosslinking. With the participation of the ionic liquid, the cohesive energy within the gel matrix and the interfacial binding energy are synergistically optimized, enabling the resulting ionogel to simultaneously exhibit high stretchability (elongation exceeding 1000%), strong interfacial adhesion (shear stress up to 1357 kPa on glass substrates), and stable strain-sensing performance (maintaining reliable responses over more than 7000 loading-unloading cycles) without the need for chemical crosslinkers or complex synthetic routes. In addition, the ionogel demonstrates intrinsic antibacterial activity and favorable biocompatibility. The ionogel enables reliable monitoring of human motions and effective discrimination of different massage manipulation modes, highlighting its promising potential for wearable ionic skins and flexible bioelectronic devices. This work provides a new design paradigm for the green and bio-friendly construction of multifunctional ionogels.
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高影响因子
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