PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Yijing Chen,Han Feng,RanRan Li,Chunhong Zhang,Yuhui Ao,Lei Shang
In this work, the synthesis of simple and convenient flame retardant curing agents for epoxy resin (EP) was investigated to solve the problems of existing flame retardant curing agents due to their complicated preparation process and poor mechanical properties. In this paper, a new type of ionic liquid curing agent (ZIM) was successfully synthesized by introducing a one-step reaction between n-octylphosphoric acid (OPA), which contains a flexible chain, and imidazole (IM) at room temperature. The results showed that the curing agent had a gel time of only 3.5 min at 120 °C, and could achieve UL94 V-0 rating with an ultimate oxygen index of 32 % or more at any additive amount of 15 phr or more. The peak exothermic rate and total exothermic rate are reduced by 55.45 % and 33.45 %, which can meet the requirements of fire safety standards in the industrial field. In addition, the incorporation of flexible chain segments and the absorption of energy dissipation by ionic bonding resulted in a 118.33 % increase in elongation at break and 127.44 % increase in impact strength of EP/ZIM-15, which greatly improved the mechanical properties. This work provides an efficient and simple method for preparing high performing EP curing agents.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Xin Zhao,Jun Xiao,Dingxian Jia,Pengfei Qi,Mingjie Wei,Shuang Hao,Yunxia Hu
Thin-film composite (TFC) nanofiltration (NF) membranes fabricated via conventional interfacial polymerization (IP) inherently suffer from the permeability-selectivity trade-off due to diffusion-limited monomer transport. Here, we unveil an ionic liquid (IL)-based surfactants ([C 12 mim][Cl]) as a dynamic bidirectional regulator of piperazine (PIP) and trimesoyl chloride (TMC) that uniquely reengineers IP kinetics to fabricate high-performance NF membranes with simultaneous enhancement in both water permeability and ion selectivity. Unlike existing additives that often passively decelerate amine diffusion, [C 12 mim][Cl] establishes a critical diffusion asymmetry ( D TMC > D PIP ) by simultaneously accelerating TMC mobility while spatially confining PIP through intermolecular binding and viscosity modulation. This diffusion-driven instability triggers spontaneous Turing patterning, yielding an ultrathin (≈24 nm) polyamide (PA) layer with a loosely packed hierarchical network and enhanced carboxyl density (59.8 mM m −2 ). The synergistic interplay of Turing structure and intensified Donnan exclusion achieves unprecedented performance of NF membrane: water permeance (19.3 LMH bar −1 , +210 %) and mono-/divalent ion selectivity (83), surpassing over current leading benchmarks. This work establishes a universal strategy to fabricate high-performance NF membranes with large permeable surface and enhanced carboxyl density through an ionic liquid‐based surfactants-mediated IP, breaking the permeability-selectivity trade-off and offering transformative potential for precision separations.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2025
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IF 4.1
Yonghui Li,Guihong Gao,Tian Han,Jingjing Ruan,Shenshen Li,Hailin Fan,Ziqiang Niu,Tongfei Wang,Shengjie Liang,Feng Huo
Lithium-sulfur batteries are regarded as promising alternatives for next-generation energy storage systems. Developing high-performance lithium-sulfur battery cathode materials requires the efficient synthesis of electrocatalysts that can both anchor LiPS and catalyze their conversion. Herein, we synthesized a composite of ionic liquid-derived nitrogen-doped carbon-coated Fe 3 O 4 loaded on graphene (Fe 3 O 4 @NC/G) by utlizing the π-π interaction between [Bmim][FeCl 4 ] and graphene. Fe 3+ ions were uniformly dispersed, effectively preventing particle aggregation during the carbonization process and producing Fe 3 O 4 nanoparticles averaging 20.64 nm in size. This structure provides plentiful active sites for adsorbing and catalyzing LiPS, thereby accelerating the redox reaction. Additionally, the nitrogen-doped carbon coating not only stabilizes the Fe 3 O 4 nanoparticles and firmly anchors them to the graphene nanosheets , significantly enhancing structural integrity, but also increases the adsorption of LiPS due to the introduction of the heteroatom nitrogen. The assembled LSBs demonstrated excellent cyclic stability with a capacity fade rate of 0.35 % per cycle over 1200 cycles at 1C.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Ying Xue,Ruijia Wang,Qing Liu,Xiaonan Hao,Yue Wu,Jingxuan Zhao,Shulin Sun
The pollution of water resources is becoming increasingly severe, and the development of separation membranes with excellent purification performance is crucial for addressing this issue. Conventional membrane modification methods often suffer from multi-stepprocedures and the susceptibility of functional components to leaching. This study introduces a novel one-step melt-blending strategy that utilizes ionic liquids (ILs) as both grafting monomers and intercalation agents. This approach simultaneously achieves graft modification of poly(vinylidene fluoride) ( PVDF) chains and intercalation into Sodium-based montmorillonite (Na⁺MMT) interlayers. The proposed “grafting-intercalation co-construction” mechanism not only significantly streamlines the preparation process but, more importantly, fundamentally prevents IL leaching during membrane formation and operation. Furthermore, the intercalated structure creates additional selective transport pathways for water molecules. The PVDF-g-ILs/MMT composite membrane demonstrates hydrophilic and underwater superoleophobic characteristics, achieved the PWF of 310.8 L·m⁻²·h⁻¹ , represented the 330 % enhancement compared to pristine PVDF membranes, while maintained rejection rates exceeding 98 % for both dye molecules and oily wastewater. The membrane exhibits remarkable long-term stability, maintained flux recovery rates (FRR) of 92 % for dyes and 90 % for emulsions after 5 filtration cycles, significantly outperforming PVDF membranes. The study not only provides an efficient membrane for wastewater purification, but more importantly offers a highly promising paradigm for membrane material design. By integrating multiple functionalities through a one-step synergistic strategy, it provides new insights for addressing the challenges of complex industrial wastewater treatment.
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JOURNAL OF CHROMATOGRAPHY A
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2016
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IF 3.926
Mei-Qiang Cai,Jie Su,Jian-Qiang Hu,Qian Wang,Chun-Ying Dong,Sheng-Dong Pan,Mi-Cong Jin
A planar graphene oxide-based magnetic ionic liquid nanomaterial (PGO-MILN) was synthesized. The prepared PGO-MILN was characterized by transmission electronmicroscopy (TEM) and Fourier-transform infrared spectrometry (FTIR). The results of adsorption experiments showed that the PGO-MILN had great adsorption capacity for 2-chlorophenol (2-CP), 2,4-dichlorophenol (2,4-DCP), 2,4,6-trichlorophenol (2,4,6-TCP), 2,3,4,6-tetrachlorophenol (2,3,4,6-TeCP) and pentachlorophenol (PCP). Based on the adsorption experimental data, a sensitive magnetic method for determination of the five CPs in environmental water samples was developed by an effective magnetic solid-phase extraction (MSPE) procedure coupled with high-performance liquid chromatography–tandem mass spectrometry (LC–MS/MS). The effects of main MSPE parameters including the solution pH, extraction time, desorption time, and volume of desorption solution on the extraction efficiencies had been investigated in detail. The recoveries ranged from 85.3 to 99.3% with correlation coefficients ( r ) higher than 0.9994 and the linear ranges were between 10 and 500 ng L −1 . The limits of detection (LODs) and limits of quantification (LOQs) of the five CPs ranged from 0.2 to 2.6 ng L −1 and 0.6 to 8.7 ng L −1 , respectively. The intra- and inter- day relative standard deviations (RSDs) were in the range from 0.6% to 7.4% and from 0.7% to 8.4%, respectively. It was confirmed that the PGO-MILN was a kind of highly effective MSPE materials used for enrichment of trace CPs in the environmental water.
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高影响因子
NEW JOURNAL OF CHEMISTRY
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2026
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IF 2.6
Mengjia Sheng,Xiang Zhang,Zhen Song,Hongye Cheng,Zhiwen Qi
The rapid development of dye industry has led to a significant amount of wastewater discharged. As a widely-used dye, toxic and non-degradable methylene blue is becoming a serious threat to our ecosystem. Thus, wastewater containing methylene blue must be treated properly. Considering the strengths of ionic liquid (IL) and metal organic framework (MOF) in molecular separation, a convenient solution strategy is proposed in this work for designing and preparing IL@MOF composite adsorbent in order to efficiently remove methylene blue from water. As a kind of water-stable MOFs, UiO-66 was synthesized by a one-pot method under very mild conditions using deep eutectic solvent (DES) as reaction media instead of conventional organic solvents. The easily obtained UiO-66-DES has superior MB adsorption kinetics but limited adsorption capacity. To mitigate this weakness, a computational and systematic IL screening framework is developed. [EtOHMIM][PF6] is eventually selected from 3569 candidates and incorporated into the UiO-66-DES. The resulted IL@MOF composite maintains the fast MB adsorption while importantly increasing the adsorption capacity from 45.85 mg/g to 227.57 mg/g. Given 10 mg/L MB solution, the removal rate is improved from 34% to 91% in 5 minutes. Meanwhile, the adsorption capacity is almost unchanged after 5 regeneration cycles, which offers great potentials for practical applications. Finally, the detailed mechanism analysis reveals that the loaded IL introduces new adsorption sites with stronger interactions with MB. These results show that the [EtOHMIM][PF6]@UiO-66-DES composite resulted from DES-assisted MOF synthesis and IL-based post-synthesis is a promising material for efficient MB wastewater treatment.
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CONSTRUCTION AND BUILDING MATERIALS
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2026
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IF 8
Guoping Zhu,Jingjing Gao,Yu Huang,Zhennan Wang,Yadong Wang,Zongmin Zhu
Epoxy resins (EP) are widely used in construction and electronic packaging， however, their flammability and the substantial smoke generation during combustion remain critical issues that need to be addressed. In this study, a novel ionic liquid, VIPA, was synthesized via a one-step method and co-introduced into the EP system along with DOPO. When 3 wt% DOPO and 1 wt% VIPA were added, the composite achieved a V-0 rating in the UL-94 test, with the LOI increasing to 32.3 %. The fire hazard of the EP-3DOPO/1VIPA composite significantly decreased, with a 36.3 % reduction in pHRR, while maintaining excellent mechanical properties: the tensile strength increased by 44.2 %, and the impact strength improved by 65.9 %. The synergistic effect of DOPO and VIPA also endowed the material with high transparency, UV resistance, acid and alkali stability, and significant fluorescence properties. The multifunctional enhancement mechanisms under the synergistic action of multiple components were revealed, providing experimental evidence for the development of multi-component thermosetting composites with both high safety and multifunctionality.
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JOURNAL OF CATALYSIS
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2026
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IF 6
Kexin Li,Bin He,Huanghao Ning,Ruiyi Yan,Ruirui Wang,Ruirui Zhang,Ruixia Liu
The highly selective and direct oxidation of cyclohexane to adipic acid (AA) using molecular oxygen under solvent-free conditions represents a “dream reaction” in industrial catalysis, yet is severely hampered by the inherent chemical inertness of C-H bond and the challenging activation of O 2 . Addressing this grand challenge, we report a non-metal heterointerface engineering strategy to construct an advanced B/F-doped h-BN/g-C 3 N 4 heterojunction catalyst (known as BN/CN-BF 4 ) via a facile synergistic ultrasonication and thermal treatment utilizing the ionic liquid. The resulting BN/CN-BF 4 exhibits a powerfully ability to regulate interfacial electronic microenvironment, as evidenced by spectroscopic, electrochemical analysis, and DFT calculations, which reveal a type-II staggered band alignment and an internal electric field (IEF) formation across the heterojunction. This precisely engineered heterointerface achieved a remarkable breakthrough in catalytic performance, yielding a high cyclohexane conversion of 18.8% with an unprecedented selectivity for AA reaching 51.3% (a significant advancement over the typical 3%-5% conversion) in solvent-free system. Mechanistic investigations established a multi-step synergistic catalytic mechanism that B-N sites and H-bonding facilitate the initial C-H bond adsorption and activation; simultaneously, the IEF-driven directional electron transfer and C-F bond formation significantly accelerate the activation of O 2 to generate highly reactive oxygen species, steering the reaction pathway directly towards the terminal product, adipic acid. This work provides a novel strategy for enhancing industrial selective oxidation by manipulating the interfacial electronic microenvironment with IEF, offering a promising route for advanced solvent-free and metal-free selective oxidation catalysts.
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POLYMER
·
2026
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IF 5.1
Haiyan Du,Haochen Jiao,Qigeng Li,Lina Gao,Xiaoxiao Liu
Recently, wireless flexible strain sensors have attracted increasing attention in the fields of soft robotics, electronic skin, and health monitoring. Wireless signal transmission overcomes the wiring constraints and immobility of traditional sensors, while the widespread application of gel-based sensors is often limited by the inherent shortcomings of different materials, including low mechanical strength, poor conductivity, and inadequate cold resistance. To address this, this work synthesized the imidazole type poly (ionic liquid) (P(VIm-NH 2 [Tf 2 N])), and fabricated the self-healable, anti-freezing and conductive polyionic gels for use in wireless strain sensors. A key highlight is the direct conversion of a mixed solution of P(VIm-NH 2 [Tf 2 N]), poly (vinyl alcohol), and phytic acid into the polyionic gel at room temperature via supramolecular self-assembly driven by hydrogen bonds and electrostatic interactions, without external stimulation. These dynamic and reversible non-covalent bonds constructed a stable network, endowing the gel with a tensile strength of 705 kPa, an elongation at break of 600%, and 85% self-healing efficiency after 24 h at room temperature. The gel also maintained good flexibility and conductivity at −20 °C. Integrated with a Bluetooth module, the gel sensor enabled wireless monitoring of joint movement, handwriting, and speech recognition on mobile terminals. This work not only provides a new material platform for high-performance wireless strain sensors but also demonstrates an efficient, safe, and environmentally friendly supramolecular assembly strategy that is readily extendable to other functional polymer gels.
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ULTRASONICS SONOCHEMISTRY
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2026
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IF 10.2
Yaru Ji,Xinyue Liu,Mengyang Hou,Shuai Hao,Yangyang Ye,Yu Rao
Large quantities of agri-food by-products arise from citrus processing, creating disposal challenges but also opportunities for valorization. To address this, this study aimed to recover bioactive phenolics from C itrus aurantium leaves (CAL) and to define their composition and bioactivity. First, was screened 16 ionic liquids and identified 1-hexyl-3-methylimidazolium chloride ([C 6 mim]Cl) as the optimal-polarity solvent for phenolic extraction. Building on this, an ionic liquid–ultrasound synergistic extraction (IL–USE) process was developed and optimized using single-factor experiments combined with response surface methodology. Under the optimal conditions (0.35 mol/L [C 6 mim]Cl, liquid-to-solid ratio 27 mL/g, ultrasonic power 280 W, 50 min, 55 °C), the total phenolics yield reached 80.57 ± 0.60 mg/g. Compared with ultrasound-assisted extraction and conventional heat-reflux extraction, IL-USE delivered higher yields. This enhancement was macroscopically reflected in the scanning electron microscopy (SEM) analysis, which revealed more pronounced cell-wall disruption. For downstream enrichment, among five macroporous resins evaluated, HPD-826 performed best, and subsequent optimization of breakthrough and elution parameters afforded a CAL total phenolics (CAL-TP) fraction with 77.45 ± 1.63% purity. Furthermore, UPLC-QTOF-MS/MS tentatively identified 47 constituents, establishing a robust chemical profile of CAL-TP. Functionally, in insulin-resistant HepG2 cells, CAL-TP increased glucose consumption and glycogen synthesis and enhanced hexokinase and pyruvate kinase activities, thereby indicating hypoglycemic potential. Collectively, this study provides a green and efficient process that yields phenolic-rich fractions from CAL with defined composition and promising antidiabetic activity.
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PubMed
高影响因子
CARBON
·
2025
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IF 11.6
Bingyu Tian,Kun Cui,Ping Wen,Rui Dong,Mingjin Fan
The tribofilm is crucial for the improvement of tribological properties, and the modulation of interfacial tribofilm through system construction and component optimization has become an important strategy to obtain excellent lubrication stability. In this work, ionic liquid (IL) functionalized hydrotalcite composites (IL-LDH) were designed and prepared as lubricating additives. The hydrotalcite was successfully exfoliated by ILs, and obtained a thinner and more flexible lamellar morphology structure. Meanwhile, the composite additives significantly improve the friction reduction, anti-wear and load-bearing properties of the basic system. The significantly improved tribological properties by IL-LDH are attributable not only to the formation of in-situ carbon layer contributed by the release and capture of ILs between the composite layers under shear, but also to the friction-induced organic-inorganic doped tribofilm under the coupling of multiple effects.
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JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
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2025
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IF 3.5
Xiangyu Zhao,Yue Wu,Wei Lan,Siying Che,Yanmin Rao,Xinyi Min,Yi Zhao,Hengye Chen,Wanjun Long,Yuanbin She,Haiyan Fu
BACKGROUND Sulfur dioxide (SO 2 ) is commonly used as a preservative and antioxidant in food processing; however, its residues can pose significant health risks. The accurate and rapid detection of SO 2 residues in food is crucial for ensuring food safety and protecting consumer health. In this study, we have developed a novel multicolor fluorescent sensor system that combines N -acetyl- l -cysteine-modified CdTe quantum dots with a trihexyl(tetradecyl)phosphonium hydroxyphenylbenzoxazole ionic liquid. RESULTS The developed dual-response sensor exhibits a remarkable fluorescent color transition, shifting from blue to purple, pink and finally yellow, in response to SO 2 concentrations ranging from 10 to 800 mg kg −1 in acid-distilled samples. This color transition enables the semiquantitative visual detection of SO 2 residues, providing a rapid and intuitive assessment method. Furthermore, a smartphone application integrated with advanced machine learning algorithms has been developed to facilitate the precise quantification of SO 2 through the red–green–blue analysis of fluorescence images, achieving a limit of detection of 9.22 mg kg −1 . The sensor system exhibited high accuracy with recovery rates ranging from 94.86% to 109.28% for complex food matrices. CONCLUSION The proposed multicolor fluorescent sensor represents a significant advancement in the intelligence, simplicity and efficiency of SO 2 residue detection in food samples. This method also offers a valuable reference for improving food safety and quality assurance. © 2025 Society of Chemical Industry.
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高影响因子
危险品化学品经营许可证（带存储）