JOURNAL OF MOLECULAR LIQUIDS
·
2019
·
IF 4.561
Huawei Yang,Jinhao Zhang,Yu Liu,Li Wang,Liangjiu Bai,Lixia Yang,Donglei Wei,Wenxiang Wang,Yuzhong Niu,Hou Chen
A poly(ionic liquid) (PIL) functionalized magnetic responsive nanocomposite was developed and utilized as a highly efficient sorbent for dyes removal . The adsorbent was prepared by grafting PIL onto silicon coated Fe 3 O 4 nanoparticles via Cu(0)-mediated reversible-deactivation radical polymerization (RDRP) method. The obtained Fe 3 O 4 @SiO 2 @PIL nanocomposite was characterized by various techniques, and tested for removal of different ionic dyes, including alizarin red (AR), thionin acetate (TA), malachite green (MG) and acid orange II (AO). The adsorbent showed ultrafast adsorption and large adsorption capacity by reaching a maximum adsorption amount of AR up to 510.2 mg·g −1 . Furthermore, the sorbent was capable to selectively adsorb the anionic dyes from aqueous solutions of mixed dyes. In addition, influences of some important factors upon the adsorption process were investigated, including adsorption temperature and time, pH value and initial dye concentration. The magnetic nanoparticles could be readily collected by applying a magnetic field and regenerate with a salt solution. The results demonstrate that the Fe 3 O 4 @SiO 2 @PIL nanocomposite has great potential as an efficient, functional and durable sorbent for water treatment.
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JOURNAL OF POLYMER RESEARCH
·
2013
·Vol. 20
·期 6
·1-7
·
IF 2.019
Wu Xueli,Qiu Jianhui,Liu Peng,Sakai Eiichi,Lei Lin
DENKA BLACK/polystyrene nanocomposites (DB/PS) were successfully prepared through a facile strategy. Some of the styrene molecules were grafted and polymerized onto the surface of the DB via the in situ free radical addition process in ionic liquid, and others self-polymerized and coated on the polystyrene grafted DB. The ionic liquid improves the grafting percentage because of its high viscosity. The electrical properties of polymer composites before and after the grafting were measured. It was found that the electrical conductivity of the DB/PS composites decreased with increasing amounts of monomer styrene and initiator 2, 2′-azobis (isobutyronitrile) (AIBN). The microstructure, morphology and thermal properties of the composites were characterized by Fourier transform-infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Raman spectroscopy. The results proved that the polystyrene had been successfully grafted onto the DB surface.
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Soft Matter
·
2014
·Vol. 10
·期 33
·6161-6171
·
IF 4.151
Wenlong Li,Peiyi Wu
Influence of bovine serum albumin on the phase transition behavior of the synthetic ionic liquid tetrabutylphosphonium styrenesulfonate ([P4,4,4,4][SS]) together with the interactions between [P4,4,4,4][SS] and bovine serum albumin (BSA) was investigated by differential scanning calorimetry (DSC), turbidity measurements, FT-IR, in combination with perturbation correlation moving window (PCMW) and two-dimensional correlation spectroscopy (2DCOS). Our results reveal that the addition of BSA would increase the phase transition temperature but weaken the transition behavior of [P4,4,4,4][SS] solution. DSC and turbidity data show us that the transition temperature of a ternary system with 20 wt% BSA added is 3 °C higher than that with 20% (w/v) [P4,4,4,4][SS] solution. Interactions between [P4,4,4,4][SS] and BSA together with the phase transition behavior of [P4,4,4,4][SS] are responsible for the denaturation of BSA upon heating. PCMW determined the obvious distinctions in LCST of different chemical groups manifesting their various response sequences in the phase separation and denaturation upon heating. Finally, 2DCOS was employed to elucidate the sequential order of chemical group motions during heating. It is worth noting that the appearance of the isosbestic point in the CO groups of FTIR spectra indicates the direct transformation of the conformation of α-helix, random coil to β-sheet and β-turn without an intermediate transition state. Additionally, the phase separation process of ionic liquid is able to recover to the original state before heating while the denaturation of BSA is irreversible after a cooling process.
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GREEN CHEMISTRY
·
2012
·Vol. 14
·期 11
·3204-3210
·
IF 6.32
Jing Wang,Zhengping Liu
Herein we report the novel use of ionic liquid (IL)/zwitterion (ZI) as a reaction medium for the efficient synthesis of polysulfones (PSFs) with high molecular weight and high yield. The results showed that ZI can significantly improve the solubility of 2,2-bis(4-hydroxyphenyl) propane (bisphenol A), and an intermediate sulphonic-type IL with high acidity was formed by ZI and bisphenol A, resulting in 80% reduction in dehydration time compared with conventional methods.
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ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Li Fang,Wang Sun,Wenshuo Hou,Zhenhua Wang,Kening Sun
Developing high-safety electrolytes is very important to improve the safety and operative temperature of lithium batteries. In this study, a heat-resistant and non-flammable electrolyte is constructed by introducing a functionalized ionic liquid N-methyl-N-methoxyethyl-pyrrolidinium bis(fluorosulfonyl)imide (Pyr 12O1 FSI, IL1) into porous polyurethane (PU) matrix. IL1 contains ether functional group, which can increase the chain flexibility of IL and provide more ion migration channels. Moreover, IL1 shows high compatibility with PU matrix because the intermolecular hydrogen bond is formed by N H groups of PU and ether oxygen of IL1, which is evidenced by Fourier transform infrared spectroscopy (FTIR) tests and density functional theory (DFT) calculations. The binding energy further corroborates the enhanced intermolecular interaction between IL1 and PU. Owing to the superior characteristics of IL1 and synergetic coupling with PU, PU-IL1 electrolyte exhibits good electrochemical performance and endows LiFePO 4 /Li (LFP/Li) battery with a high specific capacity of 135 mA h g −1 and 99% capacity retention after 100 cycles at 0.2C, 30 °C. In addition, the LFP/Li battery with PU-IL1 electrolyte exhibits a high capacity of 134 mA h g −1 (0.5C) and it remains 98% after 100 cycles at a high temperature of 80 °C.
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NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Han Xue,Hailong Xu,Miaomiao Chen,Huili Zhao,Xinkui Wang,Min Ji,Min Wang
Dimethyl carbonate (DMC), a green chemical, plays a pivotal role in the advancement of green chemistry. Among the various approaches for its synthesis, utilizing carbon dioxide (CO₂) has garnered significant attention due to its dual benefits of CO₂ utilization and sustainable production. In this study, two heterogeneous supported ionic liquid catalysts, IL-NH₂-MIL-101(Cr) and DBUIM-MCM-41, were synthesized via a chemical grafting method. These catalysts demonstrated outstanding performance in the one-pot synthesis of DMC from CO₂, propylene oxide (PO), and methanol, achieving 100 % PO conversion and a 54 % DMC yield under solvent-free and optimal reaction conditions. The catalysts exhibited excellent stability, and recyclability. A notable synergistic interaction between the supports and ionic liquids was identified, contributing to the enhanced efficiency of the one-pot DMC synthesis.
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POLYMER COMPOSITES
·
2025
·
IF 4.7
Keke Ma,Xiang Gao,Zhiji Liu,Jian Wu,Lingjie Zhang,Zhen Huang,Zhiqiang Zhou,Ningzhong Bao
To develop high-performance polypropylene (PP)-based composite bipolar plates (BPs) with enhanced processability and electrical conductivity, this work introduces a halogen-free ionic liquid (IL) containing long alkyl chains in cation and anion, namely trihexyl(tetradecyl)phosphonium di(2-ethylhexyl) phosphate ([P 66614 ][DEHP]), as a multifunctional plasticizer. The composite BPs containing binary graphite (Gr) and carbon black (CB) conductive fillers and IL are fabricated by twin-screw extrusion and compression molding. Results show that after adding 4 wt% IL to the 30PP/63Gr/7CB BP, the torque decreases from 14.3 to 7.8 N m, the storage modulus at processing temperature (210°C) lowers from 1894 to 856 MPa, and the electrical conductivity increases by 192%. The added IL enhances melt fluidity, ensuring uniform filler dispersion; at the same time, it provides additional electron pathways boosting conductivity. Moreover, IL also reduces the density and improves the hydrophobicity of the composite BP. The incorporation of the IL-based plasticizer offers a novel approach for designing easily processable and high-performance composite BPs.
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Small
·
2025
·
IF 12.1
Yu-Ren Xue,Guang-Chang Xu,Kai Li,Xin-Yu Guo,Jian Wu,Hong-Qing Liang,Hao-Cheng Yang,Chao Zhang,Zhi-Kang Xu
The growing demand for energy-efficient carbon capture has spurred significant advancements in supported ionic liquid membranes (SILMs), which utilize ionic liquid (IL) with high CO 2 solubility for continuous gas purification processes. However, conventional SILMs are hindered by a persistent limitation: thick IL layers (> 50 µm) significantly reduce CO 2 permeance to below 1 GPU, while also causing mechanical failure under prolonged operational pressure. Inspired by the interlocking elytra of Tenebrionidae beetles, which use microscale “teeth” to withstand mechanical stress, locked ionic liquid membranes (LILMs) are engineered by composeing two interpenetrating polyamide nanofilms with biomimetic protrusions. These nanofilms confine ILs within cavities formed by protrusions, thinning IL layers to sub-0.5 µm while resisting shear stresses. The LILMs demonstrate a CO 2 /N 2 selectivity of 55 and an enhanced CO 2 permeance of 8.2 GPU, surpassing the performance of conventional SILMs by ≈20-fold while maintaining stability over 168 h of continuous mixed gas separation. By dual-purposing ILs as both solvents for interfacial polymerization and CO 2 transporters, this bio-inspired architecture overcomes the thickness-stability limitations, enabling energy-efficient carbon capture.
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PubMed
高影响因子
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
·
2017
·Vol. 19
·期 17
·10835-10842
·
IF 4.123
Wenbin Jin,Yuqi Ke,Xianxian Liu,Qiwei Yang,Zongbi Bao,Baogen Su,Qilong Ren,Yiwen Yang,Huabin Xing
The development of new solvents combining greatly enhanced solubility for sparingly soluble compounds and good kinetic properties is challenging. In this study, we constructed a family of new molecular solvent/ionic liquid (IL) mixtures with amphiphilic, anionic functional long-chain carboxylate ionic liquids (LCC-ILs) as a key component for the solubilization of sparingly soluble compounds, using cholesterol as a model solute. Polarized optical microscopy (POM), wide angle X-ray diffraction (WAXD), Fourier-transform infrared (FTIR) spectra and 1H NMR showed that ordered mesoscopic structures, such as liquid crystals (LCs), were formed when cholesterol was dissolved in the mixtures, presenting a self-assembly induced dissolution mechanism driven by H-bond interaction and van der Waals forces in the mixtures. A synergistic effect between the molecular solvents and LCC-ILs was revealed, which contributed to enhanced solute–solvent self-assembly in dissolution over pure LCC-ILs and thus elevated solubility. Additionally, the effect of IL concentration, solvent type and anionic alkyl-chain length on self-assembly and solubility was investigated. These mixtures showed unparalleled solubilities for cholesterol, while maintaining a low viscosity. The quantitative solubilities (g g−1) of cholesterol were as high as 0.70, 0.84 and 0.82, respectively, at 25 °C in ethyl acetate/[P4444][C15H31COO] (50 wt%), n-heptane/[P4444][C15H31COO] (40 wt%) and ethyl acetate/[P4444][C17H35COO] (50 wt%) mixtures, which were the highest solubilities of cholesterol ever reported, six- to 980-fold higher than traditional molecular solvents and even one- to seven-fold higher compared to pure LCC-ILs. These results demonstrated the considerable potential of molecular solvent/LCC-ILs mixtures as promising solvents for solubilization and advanced separation processes.
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TALANTA
·
2025
·
IF 6.1
Weiyi Bu,Yan Zhang,Dan Huang,You Zhou,Na Liu,Wenjiang Han,Xiaohong Chuai,Zhijie Zhou,Changhua Hu,Geyu Lu
Due to the unique physiochemical properties of ionic liquids, they are extensively used as agent or solvent in the synthesis process of nanomaterials. The tailored growth process of functional nanomaterials might result in performance modification for them. In this work, In 2 O 3 nanoparticles were prepared via the hydrothermal method and subsequent calcination (400°C, 500°C, 600°C and 700°C). An ionic liquid (1-hexadecyl-3-methylimidazolium chloride, [C 16 Mim] Cl) was introduced in the hydrothermal process. After calcination, trace of [C 16 Mim] Cl inclusion in In 2 O 3 was pyrolyzed with Cl residue (Cl-In 2 O 3 ). In compare with control sample synthesized without [C 16 Mim] Cl (pure In 2 O 3 ), In 2 O 3 -600 (Cl-In 2 O 3 calcinated at 600°C) exhibited an excellent UDMH sensing performance at 225°C. The fabricated sensor achieved a high response value (71.0 ± 2.1 to 100 ppm), rapid response time (2 s), good selectivity and a low theoretical limit of detection (1.72 ppb) to UDMH gas. Various characterizations, in regard to oxygen vacancy, surface texture structure, energy band structure and surface acidity, were utilized to analyze the cause for enhanced performance. The ionic liquid inclusion increases the contents of adsorbed oxygen species and improves the adsorption capacity to UDMH gas. This work indicates that the synthesized In 2 O 3 nanoparticles could be the potential candidates for rapid UDMH detection in some specific application scenarios.
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TALANTA
·
2017
·
IF 4.162
Zhouyang Li,Yiwen Yang,Yanbo Zeng,Jianbo Wang,Haiqing Liu,Longhua Guo,Lei Li
This paper reports novel imidazole fluorescent poly(ionic liquid) nanoparticles (FPILNs) of poly(1-[(4-methyphenyl)methyl]-3-vinyl-imidazolium bromide (poly([MVI]Br) for selective and sensitive determination of pyrogallol . An imidazole ionic liquid of 1-[(4-methyphenyl)methyl]-3-vinyl-imidazolium bromide ([MVI]Br) was synthesized and used as the only monomer to obtain poly([MVI]Br) possessing phenyl fluorophores using a radical polymerization technique. The obtained poly([MVI]Br) can form nanoparticles in water. Scanning electron microscopy and dynamic light scattering results revealed majority of poly([MVI]Br) FPILNs with diameters ranging from 40 to 400 nm. Although [MVI]Br showed weak fluorescence intensity , poly([MVI]Br) FPILNs exhibited strong fluorescence intensity with a quantum yield of 0.192, which is attributed to the presence of significant number of phenyl fluorophores and rigid construction. The selective and sensitive determination of pyrogallol was achieved through fluorescence quenching of poly([MVI]Br) FPILNs, and the quenching was attributed to the oxidation of poly([MVI]Br) FPILNs by O 2 ˙¯ produced by pyrogallol autoxidation . The poly([MVI]Br) FPILNs-based sensor demonstrated a good linear relationship between the extent of fluorescence quenching and the concentration of pyrogallol in a range of 0.05 – 10.0 μM, achieving a detection limit of 0.01 μM. Furthermore, the poly([MVI]Br) FPILNs-based assay detected pyrogallol in environmental water samples, suggesting its potential to be applied for practical purposes.
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ENERGY & FUELS
·
2025
·
IF 5.3
Xingyu Lin,Hongsheng Lu,Ruoxin Zhang,Yingjiang Chen,Li Wang,Baiwen Huang
Underground CO2 storage is a key strategy for mitigating climate change by reducing greenhouse gas emissions. However, the heterogeneity of reservoirs poses challenges to effectively storing CO2 in designated spaces. In this study, an environmentally friendly CO2-responsive ionic liquid (IL) DA-Ch was synthesized by choline hydroxide (Ch) and dodecanedioic acid (DA) at a 2:1 mol ratio. The innovative system enhances the sweep efficiency and storage capacity of CO2 by enabling the transition of DA-Ch ILs aqueous solution from low-viscosity liquids (0.5 mPa·s at 0.1 mol/L) to solid microparticles upon CO2 introduction. After CO2 injection, DA precipitated again from the DA-Ch ILs aqueous solution with a volume mean particle size of micrometers, even under high-salinity conditions. This phase transition effectively plugs preferential flow channels, expanding CO2 storage space by 82% compared to conventional CO2 flooding. Our findings propose a novel, sustainable approach to address gas channeling challenges in subsurface CO2 storage, offering dual benefits for carbon sequestration and enhanced oil recovery.
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