JOURNAL OF HAZARDOUS MATERIALS
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2013
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IF 3.925
Hejun Gao,Taotao Kan,Siyuan Zhao,Yixia Qian,Xiyuan Cheng,Wenli Wu,Xiaodong Wang,Liqiang Zheng
A novel functional ionic liquid based cross-linked polymer (PDVB-IL) was synthesized from 1-aminoethyl-3-vinylimidazolium chloride and divinylbenzene for use as an adsorbent. The physicochemical properties of PDVB-IL were investigated by Fourier transform infrared spectroscopy, scanning electron microscopy and thermogravimetric analysis. The adsorptive capacity was investigated using anionic azo dyes of orange II, sunset yellow FCF, and amaranth as adsorbates. The maximum adsorption capacity could reach 925.09, 734.62, and 547.17 mg/g for orange II, sunset yellow FCF and amaranth at 25 °C, respectively, which are much better than most of the other adsorbents reported earlier. The effect of pH value was investigated in the range of 1–8. The result shows that a low pH value is found to favor the adsorption of those anionic azo dyes. The adsorption kinetics and isotherms are well fitted by a pseudo second-order model and Langmuir model, respectively. The adsorption process is found to be dominated by physisorption. The introduction of functional ionic liquid moieties into cross-linked poly(divinylbenzene) polymer constitutes a new and efficient kind of adsorbent.
研究领域:
环境化学
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材料科学
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吸附技术
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水处理
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高分子化学
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Nanoscale
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2026
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IF 5.2
Tongpeng Zhao,Ruiqin He,Yuxin Gao,Chunmei Wang,De Yu,Xuesong Liu,Tanghao Liu,Yimu Chen
Metal halide perovskite single-crystal thin films (SCTFs) are recognized as promising light absorbers for solar cells due to their advantages of low bulk defect density, high thermal stability, and outstanding optoelectronic properties. However, their uncontrollable surface defects still pose a challenge. Widely used post-treatment strategies can passivate defects but these come at the cost of undesired damage at the buried interfaces, which results in the failure of devices. Herein, we propose an in situ passivation strategy by introducing an ionic liquid, 1-hexyl-3-methylimidazolium bromide (HMIMBr), during SCTF growth to passivate surface defects. Meanwhile, the HMIM+ cations with long alkyl chains form a hydrophobic protection barrier that suppresses corrosion induced by residual precursor solution, moisture permeation, and interfacial ion accumulation. The resultant SCTF solar cells with HMIMBr incorporation achieve an enhanced efficiency of over 23%, accompanied by significantly improved ambient stability. This in situ passivation strategy provides a simple yet effective approach for high-quality SCTFs and high-performance solar cells.
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CHEMICAL ENGINEERING COMMUNICATIONS
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2026
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IF 2.2
Xiaoxian Sun,Yining Hu,Yingtong Zhou,Xin Liu
An amino acid ionic liquid, with lysine as the cation and CF3SO3- as the anion, was synthesized by ion‐exchange between lysine and trifluoromethanesulfonic acid. This ionic liquid was then explored as a catalyst for the esterification of oleic acid with methanol to produce methyl oleate, commonly known as biodiesel. Using this catalytic ionic liquid helps to mitigate common issues in conventional biodiesel synthesis—such as difficult product separation, catalyst recovery, and waste liquid disposal. This study investigates the effect of the catalyst on the conversion of oleic acid and identifies the optimal reaction conditions, including temperature, methanol-to-oleic-acid molar ratio, catalyst loading, and reaction time. The process was first optimized using traditional single-factor experiments to evaluate the main operating variables. Subsequently, data-driven methods, including Response Surface Methodology (RSM) based on a Box–Behnken design and Random Forest regression modeling, were employed to determine the optimal conditions for maximizing methyl oleate yield. The computational approach served to significantly reduce the required number of experimental trials, and allows to systematically identify optimal reaction conditions. The verified computational results had only 0.17% deviation from the predicted values.
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ChemSusChem
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2026
·Vol. 19
·期 5
·e202501878
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IF 5.9
Jun Li,Ronghao Liu,Hao Tian,Yanzhao Yang
Precious metal recovery from secondary resources with high efficiency and minimal environmental impact remains a critical challenge in separation technology. In this study, a novel ionic liquid N6-tetramethyl-N1-(4-vinylbenzyl)hexane-1,6-diammonium chloride (TVBHDCCl 2 ) was synthesized and subsequently polymerized into bicentric poly(ionic liquid)s, designated as P(TVBHDCCl 2 )s. The P(TVBHDCCl 2 )s demonstrated exceptional adsorption capacities for gold (637 mg/g), palladium (299 mg/g) and platinum (542 mg/g) with fast adsorption kinetics to reach equilibrium within 2–4 min and appreciable stability in acidic medium (pH = 1). Combined experimental and theoretical analyses revealed that the adsorption process is governed by a synergistic mechanism involving electrostatic interactions and redox reactions, with the primary adsorption site located in the region between the double cationic center in P(TVBHDCCl 2 )s. In summary, this work introduces a highly efficient, selective, and sustainable polymeric adsorbent for simultaneously recovering precious metals from secondary resources, presenting a viable strategy for resource recycling and green separation technology. Graphical A green and efficient strategy is reported for the selective adsorption of Au(III) from wastewater containing As 3+ , Ag + , Ni 2+ , Pb 2+ , Pd 2+ , and Pt 4+ . By using poly(ionic liquid)s (PILs) as adsorbents, gold is preferentially captured. Following adsorption, efficient stripping and washing enable complete regeneration of the PILs. This closed-loop cycle offers a sustainable pathway for precious metal reclamation.
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EUROPEAN POLYMER JOURNAL
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2026
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IF 6.8
Jingshi Liang,Xiaolin Shi,Zifei Zhao,Bo Liu,Chunling Zhang
As a flexible conductive material, ionogels inherently suffer from limitations to the liquid components, potentially leading to leakage and evaporation. Here, a class of solvent-free poly(ionic liquid) elastomers (PILEs) is prepared through the copolymerization of imidazolium ionic liquid monomers with different functional groups (benzyl, butyl, heptyl, and decyl) and soft acrylate monomers. The transmittance of the PILEs in the visible range (400–800 nm) was 91 %, and the decomposition temperatures of PILEs were close to 320 °C. The PILEs with benzyl groups exhibited a tensile strength of 0.87 MPa and an elongation at break of 960 %, attributed to the structural rigidity of the benzene ring and cation-π interaction. The elongation at break of the PILEs with decyl groups reached 2920 %, attributed to the synergy of entanglement and hydrogen bond. The PILEs can adhere to various substrates and maintain adhesion across a wide temperature range (–10 °C to 60 °C). The PILEs with benzyl groups also yielded room-temperature ionic conductivity of 1.33 × 10 −4 S/m and exhibited good sensitivity to strain and temperature. These combined properties make the PILEs a candidate for flexible sensor.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yuhang Gao,Yong Luo,Zhonghao Zhao,Zhuangwei Chen,Chunting Zhang,Fengru Feng,Li Zhou,Xiaohua Huang,Chanjuan Liu,Xing-Can Shen
One-step copolymerization yields a peach gum polysaccharide/poly(ionic liquid) hydrogel with dual physicochemical semi-IPN. • The hydrogel has high tensile strength (254.5 kPa), ultrahigh stretchability (2317.7%), and 86.9% efficient self-healing. • PBA-IL served as an ionic conductor, dynamic crosslinker, and antibacterial component with > 99% antibacterial activity. • Stable ionic conduction and dual strain/temperature sensing are achieved over −20–60 ℃ for wearable health monitoring. • The hydrogel enabled electrophysiological signal acquisition and ML‑assisted hand gesture recognition (98% accuracy). Ionically conductive hydrogels (ICHs) based on natural bioresources are promising candidates for flexible electronics owing to their sustainability and biocompatibility. However, integrating mechanical robustness, high ionic conductivity, environmental tolerance, self-healing, antibacterial functionality, and practical multimodal sensing into a single polysaccharide-based hydrogel remains challenging. Herein, a peach gum polysaccharide/poly(ionic liquid) hydrogel (PAM/PBA-IL/PGP) is fabricated via a one-step copolymerization of acrylamide (AM) and a phenylboronic acid ionic liquid (PBA-IL) in the presence of peach gum polysaccharide (PGP). The hydrogel features a semi-interpenetrating architecture in which PGP chains are dynamically anchored to a covalent poly(AM-co-PBA-IL) network through reversible boronate ester bonds, together with hydrogen bonding and electrostatic interactions, yielding a dual physicochemical crosslinked network. As a result, the hydrogel combines high tensile strength (254.5 kPa), ultrahigh stretchability (2317.7%), high ionic conductivity (3.46 mS cm −1 ), excellent self-healing efficiency (86.9%), and robust antibacterial activity (>99% inhibition against Staphylococcus aureus and Escherichia coli ), while maintaining stable strain- and temperature-sensing performance from −20–60 ℃. Benefiting from its interfacial adaptability and stable ionic conduction, the hydrogel functions as a flexible multimodal sensor capable of monitoring joint motions and subtle physiological activities, as well as body temperature and fever-related variations. In addition, it serves as a soft bioelectrode for electrophysiological signal acquisition. The hydrogel-based sensing system also supports machine-learning-assisted hand-gesture recognition with an accuracy of approximately 98% and enables real-time wireless control of a robotic hand. These results highlight PAM/PBA-IL/PGP as a versatile platform for next-generation hydrogel-based wearable sensing and bioelectronic interfaces. A synergistic network integrating dynamic boronate ester bonding, together with covalent crosslinking, and multiple noncovalent interactions enables peach gum polysaccharide/poly(ionic liquid) hydrogels with high mechanical robustness, stable ionic conductivity, and environmental stability for multifunctional flexible sensing. Download: Download high-res image (238KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
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IF 9.2
Tianyu Gao,Chenchen Zhao,Guoli Yang,Han Li,Nan Wang,Weiwei Lu,Kaisheng Yao
A simple, one-step, room-temperature, aqueous-phase strategy is presented for synthesizing hierarchical bimetallic nanostructures with superior catalytic properties. This approach utilizes a poly(ionic liquid) (PIL), specifically poly(1-vinyl-3-ethylimidazolium bromide) (PVEIB), which functions as an all-in-one reaction medium and structure-directing agent in aqueous solution at ambient temperature, enabling the facile preparation of well-defined AuPd nanosnowflakes (NSFs). The resulting morphology exhibits a unique four-level hierarchy assembled from nanoparticle building blocks. Systematic investigation identifies both PVEIB concentration and Au/Pd precursor ratio as critical parameters governing this hierarchical growth. Benefiting from its open architecture and the synergistic electronic interaction between Au and Pd, AuPd NSFs-1 delivers exceptional performance: it achieves high activity and selectivity (100% conversion, 100% selectivity) in the selective hydrogenation of p -nitrostyrene to p -nitrophenylethane, and maintains robust stability over five catalytic cycles. This PIL-mediated aqueous synthesis thus provides a versatile and sustainable platform for the design of advanced multimetallic nanomaterials for catalytic and related applications.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Siqing Wang,Xiaohan Wang,Yang Cao,Xiaoyan Wang,Sijie Yin,Minmin Liang
Continuous glucose monitoring (CGM) in interstitial fluid (ISF) is often compromised by temperature and pH variations, hydration–dehydration cycles, and interfering species, which lead to unstable enzyme immobilization and inefficient electron transfer. To overcome these challenges, we developed a hybrid material comprising ionic-liquid–functionalized poly(glycidyl methacrylate) microbeads (ILMbs) with internal immobilization of GOx, interpenetrated with carboxylated carbon nanotubes (CNT). This covalently interconnected ILMbs/CNT framework establishes a dual ion–electron conductive network that maintains enzyme hydration, buffers local pH, and facilitates efficient electron transport. Glucose oxidase (GOx) immobilized within this matrix exhibits high catalytic activity and exceptional stability against microenvironmental perturbations. The resulting ILMbs/CNT/GOx sensor achieved sensitive and reliable glucose detection across physiological pH (6.5–7.5) and temperature (25–40 °C) ranges, maintaining a stable current response during extended operation and under exposure to common interferents. The sensor retained over 94% of its initial current response after 21 days of storage, exhibited less than 5% signal fluctuation over 30 continuous CV cycles and displayed a clear, stepwise amperometric response to glucose concentrations from 0 to 11 mM, demonstrating excellent long-term stability, repeatability, and sensitivity. This materials-based strategy successfully integrates microenvironmental protection with enhanced conductivity, offering a robust platform for fabricating durable, enzyme-based biosensors capable of reliable performance in complex ISF-like environments.
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ACS Applied Polymer Materials
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2025
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IF 4.7
Wenjing Zhang,Jie Ren,Minmin Zhang,Ziqiong Zhou,Yan Li,Wu Yang
Conductive hydrogels have emerged as promising candidates for flexible sensors in health monitoring systems. However, integrating multifunctionality, including mechanical robustness, tissue adhesion, strain sensitivity, and frost resistance, through simple fabrication remains challenging. Herein, we report a multifunctional hydrogel through incorporation of ionic liquids. The dynamic noncovalent interactions endow the hydrogel exceptional mechanical performance with a fracture stress of 0.057 MPa, ultrahigh elongation (1200%), toughness of 0.55 MJ/m3, and an elastic modulus of 0.009 MPa. The hydrogel also exhibits universal adhesion capabilities and high conductivity, even at subzero temperatures. As a flexible sensor, it accurately detects diverse biomechanical signals ranging from macroscale joint movements to subtle physiological activities. Furthermore, its skin-like compliance facilitates direct touchscreen interaction for digital writing, demonstrating its potential as artificial electronic skin. This multifunctional hydrogel provides a scalable solution for developing durable wearable sensors in extreme environments, bridging critical gaps in next-generation health monitoring technologies.
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ACS Applied Electronic Materials
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2025
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IF 4.7
Huimin Wu,Yuying Chen,Fei Jin,Qiong Wu,Benfeng Zhu,Hongliang Ge,Song Wang,Ying Wang
In this work, the superhydrophilic ionic liquid (IL) was loaded on a hydrophobic fullerene surface, and two humidity-sensitive materials (C60-L1 and C60-L2) were synthesized to prepare fast-response humidity sensors. The sensors exhibit excellent sensitivity with response values spanning 5 orders of magnitude (16,629 for the C60-L1 and 21,188 for the C60-L2), fast response times (0.99 s for the C60-L1 and 0.97 s for the C60-L2), and low hysteresis effects (6.73% RH for the C60-L1). The inherent hydrophobicity of C60 regulates the strong hydrophilicity of the ionic liquid, allowing it to respond normally even at high humidity, and the large specific surface area and excellent electrical properties of C60 are favorable for proton conduction. In addition, the sensor demonstrates utility in respiratory monitoring and noncontact switching, highlighting its potential for healthcare and environmental applications.
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NEW JOURNAL OF CHEMISTRY
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2025
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IF 2.5
Zhen Yang,Xian Dong,Longchao Liang,Zhuo Chen
The excellent adsorption potential of poly (ionic liquid)s was utilized in amino-functionalized poly (ionic liquid)s (PVABn) materials constructed for the efficient adsorption of volatile organic compounds (VOCs). 1-Vinyl-3-(3-aminopropyl)-imidazolium bromide was synthesized in a quaternization reaction using 1-vinylimidazole and 3-bromopropylamine hydrobromide as raw materials. Four PVABn adsorbents (PVABn-2, PVABn-3, PVABn-4, and PVABn-5) with micro-mesoporous structures were prepared by polymerization with various concentrations of divinylbenzene cross-linker (molar ratios 2:5, 3:5, 4:5, and 5:5, respectively). Preliminary static adsorption experiments with PVABn-x were conducted for five volatile organic compounds (VOCs): chloroform, toluene, diethyl ether, acetone, and acetaldehyde. The resulting demonstrated that PVABn-x exhibited significantly higher adsorption capacity for acetaldehyde than for the other VOCs and materials hosted many chemically active sites, which provided substantial adsorption capacity for acetaldehyde gas. PVABn-4 showed the greatest capacity of 310.8 mg/g, thus overcoming the limitation of insufficient specific surface area. Kinetic and isotherm studies showed that adsorption conformed to the Bangham kinetic model and the Freundlich isotherm model, indicating that it was mainly driven by physical processes. Cyclic adsorption on PVABn-4 was investigated using high-temperature nitrogen purge desorption. After five adsorption–desorption cycles, adsorption had decreased to 288.9 mg/g, which is >90% of the initial value and therefore indicates excellent stability and renewability. This work offers an effective design strategy for high-performance, reusable PIL-based adsorbents, with great promise for VOCs capture and environmental remediation.
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Materials Today Communications
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2025
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IF 4.5
Ao Men,Meng Cai,Cong Cai,Xiaoqiang Fan
The application of MXenes in organic coatings has been limited due to their tendency to agglomerate in polymer matrices, which is primarily caused by poor interfacial interactions with the polymer, and their susceptibility to oxidation under ambient conditions, resulting from the exposed Ti atoms on the surface. Here, Ti 3 C 2 T x MXene nanosheets were covalently modified with ionic liquids to prepare functionalized hybrid materials, which were subsequently incorporated as fillers into waterborne epoxy resin. The amine-functionalized ionic liquids improve the interaction between Ti 3 C 2 T x MXene and the polymer matrix, enhancing dispersion and reducing oxidation by minimizing its environmental exposure. Corrosion resistance and tribological behaviors demonstrated that the composite coating exhibited superior anti-corrosion performance, achieving a five-fold increase in the lowest frequency impedance modulus, and enhanced wear resistance, with a 64.93 % reduction in wear rate. These improvements are ascribed to the labyrinthine effect generated by the uniform dispersion of Ti 3 C 2 T x MXene nanosheets and the enhanced mechanical properties of the coating, stemming from improved interfacial compatibility with the resin. This work presents a green modification strategy for Ti 3 C 2 T x MXene, offering a viable approach to enhance its practical application in organic coatings. It also outlines potential future research directions, including further optimization of the MXene-resin interface and exploration of alternative ionic liquids for functionalization.
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