CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Xiankun Wu,Huiqin Xu,Keyi Huang,Wentao Zheng,Youting Wu,Xiaomin Zhang
Functionalized ionic liquid-cyclohexanone composites are proposed and designed. • An excellent H₂S uptake (7.34 mol·kg −1 at 313.2 K and 1.0 bar) is achieved. • Carbonyl and acetate are responsible for superior H₂S uptake. • Conversion of H 2 S into thiols and catalysts recovery by water extraction. Traditional functionalized ionic liquids (ILs) require tedious structural derivatization to boost separation yet suffer from high synthetic cost and poor industrial scalability. Herein, a facile cyclohexanone (Cyc)-based composite strategy was proposed relying on reversible H 2 S absorption enabled by carbonyl moieties instead of conventional functional-group derivatization. Four commercial ILs were blended with Cyc to construct IL − Cyc systems for efficient selective H 2 S capture and catalytic valorization. Among these candidates, [Emim][Ac] − Cyc delivered a high H 2 S uptake of 7.34 mol·kg −1 at 313.2 K and 1.0 bar. Combined spectroscopic characterizations, quantum chemical calculations and molecular dynamics simulations verified that synergistic interactions between acetate and carbonyl sites account for superior H 2 S affinity. Moreover, [Emim][Ac] − Cyc efficiently catalyzed the addition of H 2 S to epoxides for thiol synthesis, with catalyst recyclability realized by water extraction. This work provides guidance for the design of low-cost desulfurization materials toward sustainable H 2 S resource utilization. This work presents IL–Cyc composites for efficient H 2 S capture and catalytic conversion. Download: Download high-res image (150KB) Download: Download full-size image
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MICROCHEMICAL JOURNAL
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2026
·
IF 5.2
Xiangyu Li,Siyu Han,Dongshu Chen,Xiang Li,Kuihong Lv,Jie Ren,Bai Wang,Jianshe Hu
ZnBr 2 -regulated PIL/FPIL platform enables multimodal wearable sensing. • PIL-16.5 senses 0–800% strain with GF up to 5.54 and 1000-cycle stability. • Thin FPIL detects humidity, pulse, and respiration signals for wearable use. • K-means-assisted Random Forest identifies four breathing states with 95% accuracy. Soft ionic conductors are promising materials for wearable electronics, yet their practical application remains limited by the difficulty of balancing mechanical robustness, ionic transport, and multimodal sensing within a single material system. Herein, we report a ZnBr 2 -enhanced poly(ionic liquid) elastomer (PIL) prepared by UV polymerization of a [VEIM]Br-derived ionic precursor. Spectroscopic analyses, XPS, and DFT calculations indicate that ZnBr 2 reorganizes bromide-rich ionic environments within the PIL network, providing a structural basis for balancing network reinforcement and ion migration. The optimized PIL-16.5 exhibits a strain-sensing range of 0–800%, segmented gauge factors of up to 5.54, and stable electrical output over 1000 cycles at 100% strain. It also exhibits water-assisted self-healing at room temperature, recovering 89.5 ± 3.5% of its fracture strain and 87.4 ± 6.8% of its toughness, together with solution-assisted recyclability. Beyond mechanical sensing, the elastomer shows clear electrical responses to temperature and humidity, supporting multimodal sensing. This material supports wearable monitoring of joint movement, arterial pulse, and respiration. Furthermore, a machine-learning workflow was used to analyze respiratory signals, enabling differentiation among four respiratory states with an average classification accuracy of approximately 95% and demonstrating the feasibility of lightweight, data-driven physiological-state recognition. This work establishes a PIL-based sensing platform that combines large deformability, recoverability, multimodal responsiveness, and compatibility with data-driven analysis, showing potential for respiratory monitoring and wearable health applications. Download: Download high-res image (257KB) Download: Download full-size image
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Ruilin Xie,Ruisheng Guo,Wenjing Ouyang,Chenyu Qiao,Jingyu Kang,Xuqing Liu
Two-dimensional MXene nanosheets have attracted considerable attention as lubricating fillers in polymer coatings owing to their excellent interlayer sliding and high tribofilm-forming capabilities. However, their aggregation within the polymer matrix and weak interfacial interactions hinder their ability to achieve high wear resistance. Existing modification strategies for MXenes (such as silane coupling or catechol-based modifications) frequently involve complex processes, toxic reagents, and/or specific chemical reaction environments, and the direct surface modification of MXene using lubricating agents for synergistic lubrication remains underexplored. Herein, we propose a mechano-assisted surface modification strategy to synthesize ionic liquid-functionalized MXene (MX-IL) using 1-aminopropyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, a water-soluble ionic liquid (IL). The IL anchors to MXene nanosheets via Ti–N coordination bonds and electrostatic interactions, whereas its highly polar anions/cations and –NH 2 groups enhance the dispersibility and interfacial compatibility of MXene with waterborne epoxy resin, improving the storage modulus, adhesion strength, and hardness. This dual-action mechanism, involving the combination of the inherent weak interlayer shear strength of MXene with the strong adsorption effect of IL, considerably improves the tribological properties of nanocomposite coatings. Tribological tests reveal that incorporating 1.0 wt% MX-IL decreases the friction coefficient and wear rate of pure epoxy coating by 39.8 % and 84.5 %, respectively. The mechano-assisted IL modification eliminates the need for toxic reagents and intricate synthesis steps, offering a simple, ecofriendly approach for fabricating high-performance, self-lubricating polymer coatings. This study addresses critical challenges in MXene–polymer composite design and provides a foundational framework for the development of advanced lubrication materials via synergistic surface engineering.
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ACS Applied Polymer Materials
·
2026
·
IF 4.7
Guoliang Yang,Haohang Yuan,Bin Liu,Kaige Yan,Xinwei Wang,Shujuan Liu,Qian Ye,Weimin Liu
Marine biofouling imposes significant economic and ecological challenges to maritime activities. Hydrogels are considered effective antifouling materials owing to their highly hydrated surfaces. Herein, nanocomposite hydrogels incorporating ionic liquid-functionalized gallium-based liquid metal (IL-GLM) were successfully fabricated. The ionic liquid (VBBIm+Cl–) was grafted onto the surface of GLM through free radical polymerization, enhancing dispersibility and antifouling efficiency. The resulting IL-GLM microgels were embedded into an acrylic acid/acrylamide hydrogel matrix to form IL-GLM@gel nanocomposite coatings. These coatings exhibited superior antifouling activity and mechanical performance, arising from the synergistic effects of Ga3+ release and ionic liquid functionality. Notably, IL-GLM@gel achieved antibacterial and microalgae removal rates exceeding 95 and 85%, respectively, and an increase in tensile strength by 119% and elongation of break by 57%. This study demonstrates that IL-GLM@gel hydrogels hold strong potential as advanced antifouling coatings for marine applications.
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ACS Applied Materials & Interfaces
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2020
·
IF 8.758
Fengrui Zhang,Yiyang Sun,Zhicheng Wang,Daosong Fu,Jing Li,Jianchen Hu,Jingjing Xu,Xiaodong Wu
High-energy density solid-state lithium metal batteries are expected to become the next generation of energy storage devices. Polymeric ionic liquid-based solid polymer electrolytes (PIL-based SPEs) are an attractive choice among electrolytes, but their ionic conductivities are generally insufficient due to numerous crystallized polymer regions. To achieve higher conductivity, we use facile copolymerization of an ionic liquid (IL) monomer and poly(ethylene glycol) diacrylate monomer to obtain in situ plasticized polymer chains. The resultant PIL-based SPE exhibits decreased crystallinity, a lower glass-transition temperature, and improved ionic conductivity (1.4 × 10–4 S cm–1 at 30 °C). A solid-state LiFePO4 (LFP)|Li battery based on the SPE displays a high reversible specific capacity of 140 mA h g–1 at 0.2C at 25 °C and excellent cycling stability, accompanying high Coulombic efficiency of approximately 100%. The in situ plasticized PIL-based SPE is significant in developing solid-state Li metal battery systems.
研究领域:
材料科学
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电化学
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能源存储
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2019
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IF 3.375
Jinlong Li,Tingting Li,Changjun Peng,Honglai Liu
Ionic liquids (ILs) of 1-ethyl-3-methylimidazolium acetate ([EMIM][OAC]), 1-ethyl-3-methylimidazolium proline ([EMIM][PRO]), and N,N,N-dimethyl-butylethanol amine glycolic acid ([N1,1,4C2OH][GAC]) are selected as entrainers for the extractive distillation to separate the mixture of acetonitrile and water based on the COSMO-RS method. The isobaric vapor–liquid equilibrium of ternary mixtures containing ILs at atmospheric pressure is determined, verifying that the used ILs can break the azeotropy of acetonitrile and water. On the basis of the thermodynamic analysis, a typical extractive distillation process is designed with Aspen Plus to evaluate the competitiveness of IL entrainers in separation performance. Significant savings of entrainer and energy, in which the solvent ratios in moles reduce from 0.94 to 0.09, 0.12, and 0.12 and the overall heat duties on the reboiler decrease 24.9, 17.5, and 15.4% for [EMIM][OAC], [EMIM][PRO], and [N1,1,4C2OH][GAC], respectively, can be achieved compared with those of ethylene glycol used as the entrainer.
研究领域:
化学工程
·
分离技术
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JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2024
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IF 2
Yutong Zhang,Yinge Bai,Mengjun Wang,Shaojuan Zeng,Wei Han,Xiangping Zhang
Ionic liquids (ILs) show great potential for the treatment of dichloromethane (DCM)-containing waste gases, but currently there are limited data on the vapor–liquid equilibrium (VLE) of DCM + IL systems. This work uses headspace gas chromatography (HS-GC) to determine the isothermal VLE data of the DCM + [Epy][EtSO4] and DCM + [Emim][EtSO4] systems at 308.15 K, 313.15 K, 318.15 K, 323.15 K, and 328.15 K. The nonrandom two-liquid (NRTL) and universal quasi-chemical correlation activity coefficient (UNIQUAC) models are used to regress the VLE data. The results show that the fitting average relative deviations (ARDs) of the DCM + [Epy][EtSO4] and DCM + [Emim][EtSO4] systems to the NRTL model were 6.97% and 7.95% and the fitting ARDs to the UNIQUAC model were 6.10% and 6.28%, respectively. The fitting effects of the UNIQUAC models for both systems were better than those of the NRTL model. With the models, the calculated activity coefficients of DCM were all less than 1, indicating that the solutions exhibited negative deviations from Raoult’s law, and the nonideality of the solutions increased with increasing IL concentration.
研究领域:
化学工程
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环境科学
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JOURNAL OF CHROMATOGRAPHY A
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2026
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IF 4
Xin Tang,Yao Chen,Xueqin Ding
Food authentication, particularly the identification of meat species, relies on the efficient extraction of high-quality DNA from complex matrices. Conventional magnetic solid-phase extraction materials typically require multistep synthesis to coat functional layers onto an iron oxide core, which complicates their preparation and limits practical application. To address this challenge, we developed a magnetic ionic liquid-functionalized graphene adsorbent (G-MIL) that integrates the magnetic component and the functional modifier into a single material, thereby eliminating the need for a separate magnetic core and simplifying the synthesis process. This G-MIL material enabled the development of a rapid, one-step DNA extraction method that combines vortex-assisted dispersion and magnetic separation, effectively integrating isolation, enrichment, and purification without tedious centrifugation steps. The key extraction parameters were systematically optimized. The method demonstrated excellent repeatability (RSD = 2.15%, n = 3) and high selectivity for DNA in the presence of interfering proteins and amino acids. Most importantly, this approach was successfully applied to the authentication of beef products, reliably distinguishing pure beef from adulterated counterparts. This work not only presents a novel and efficient adsorbent for DNA extraction but also provides a robust and straightforward platform for enhancing traceability and ensuring authenticity in the food supply chain.
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高影响因子
Separations
·
2026
·Vol. 13
·期 2
·72
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IF 3.5
Mengshuai Liu,Xiaoman Li,Mengmeng Zhao,Xuyang Jiu,Chuang Yao,Minglei Tian
Background: Food waste contains abundant (+)-catechin, but its efficient recovery remains challenging. This study aimed to prepare ionic liquid (IL)-modified sorbents and establish an efficient method for (+)-catechin recovery from chocolate waste via solid-phase extraction (SPE). Methods: Three series of IL-modified sorbents (Sil-IL, ZIF67-IL, Sil@ZIF67-IL) were synthesized. Their adsorption performance was evaluated under different conditions; adsorption isotherm and kinetic data were fitted to Langmuir/Freundlich and pseudo-first/second-order models, respectively. Sorbent stability and (+)-catechin recovery from chocolate waste extracts were tested. Results: Sil@ZIF67-Hmim showed the highest adsorption capacity (154.4 mg/g) at 25 °C within 120 min. Adsorption followed the Langmuir model (R2= 0.99), indicating chemisorption. Sil@ZIF67-Hmim was subjected to repeated solid-phase extraction (SPE) for five consecutive days; the recovery rate ranged from 98.1% to 99.2%, and the relative standard deviation (RSD) was 3.2–4.4%. Conclusions: Sil@ZIF67-Hmim is a high-efficiency sorbent for (+)-catechin recovery from chocolate waste, providing a novel approach for food waste valorization and highlighting the application potential of IL-modified MOF-silica composites.
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FOOD CHEMISTRY
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2026
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IF 10.4
Feiyue Liu,Gaoqi Ye,Genying Li,Ruoyan Yang,Jie Liu,Lingxiao Gong,Jing Wang
This study screened eight imidazole-based ionic liquids (ILs) for the pretreatment of soybean hulls to enhance the preparation of hemicellulose-derived oligosaccharides with anti-inflammatory activity. Results identified 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) as the most effective solvent, universally improving hemicellulose yield by approximately two-fold and purity by 15% across alkali, acid, hydrothermal, organic solvent, and enzymatic extraction methods. Structural analyses revealed that [Bmim]Cl introduced significant surface voids and reduced crystallinity while effectively preserving the intrinsic chemical functional groups. Consequently, the modified hemicellulose exhibited significantly enhanced water-holding capacity, oil-holding capacity, and swelling ability. The derived oligosaccharides significantly downregulated the secretion of pro-inflammatory mediators, including NO, IL-6, and TNF-α, in LPS-induced RAW264.7 cells. The XOS4 fraction derived from Trichoderma xylanase displayed the most potent anti-inflammatory activity, resulting from a low polymerization average degree and a low arabinose/xylose ratio (0.64). In conclusion, the IL-mediated pretreatment strategy provides an efficient pathway for breaking down soybean hull recalcitrance.
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高影响因子
BIORESOURCE TECHNOLOGY
·
2026
·
IF 8.2
Jing Yao,Hong Yan,Junli Xu,Yao Zhang,Qing Zhou,Rana R. Neiber,Xingmei Lu,Dongxia Yan,Fubao Sun,Yi Li,Jiayu Xin
Photothermal pretreatment of corn stalk at low temperature was developed. • 84.68% cellulose retention and 83.03% lignin removal were achieved at 80 ℃, 4 h. • Photothermal synergistic strategy enhanced the separation of cellulose and lignin in corn stalk pretreatment. Efficient fractionation of lignocellulosic components is essential for sustainable biomass valorization. Herein, a visible-light-assisted ionic liquid (IL) composite system composed of 30% 2-hydroxy-N-(2-hydroxyethyl)- N -methylethanaminium methanesulfonate ([BHEM]mesy) and 70% ethylene glycol, containing 0.1 wt% photocatalyst g-C 3 N 4 , was developed to achieve low temperature photothermal fractionation of corn stalk. The IL provides protonic sites and hydrogen-bonding capability for lignin solubilization, while the dispersed photocatalyst absorbs light energy to accelerate mass transfer and enhance solvation selectivity between lignin and cellulose. Under the optimized conditions (80 ℃, 4 h), 83.03% of lignin is removed while 84.68% of cellulose is retained. The regenerated lignin exhibits reduced molecular weight, while the purified cellulose phase enables aerogel fabrication. Compared to conventional hydrothermal pretreatment, visible-light coupling enhances the pretreatment process. Reduces the reaction temperature and maintains cellulose crystallinity, confirming its superior pretreatment efficiency. This study establishes an integrated photothermal biomass fractionation strategy that offers a novel and highly efficient method for biomass utilization. Download: Download high-res image (124KB) Download: Download full-size image
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Polymers
·
2026
·Vol. 18
·期 9
·1109
·
IF 5.8
Liuli Zhu,Jiatian Zhu,Jingpeng Zhou,Qin Feng,Baojie Liu,Chengrong Qin,Chen Liang,Caoxing Huang,Shuangquan Yao
To address the challenges of inefficient depolymerization and undesirable condensation side reactions of lignin in lignocellulosic biomass, this study employed an ethanolamine pyruvate protic ionic liquid (EAP) pretreatment system to achieve selective separation of lignin from eucalyptus while simultaneously enabling its in situ structural activation. Under optimized conditions (pyruvate-to-ethanolamine mole ratio of 1:3, 120 °C, 40 min), the EAP system afforded a lignin separation yield of 79.0 ± 0.6%, with dissolution yields of cellulose and hemicellulose of 9.6 ± 0.3% and 11.2 ± 0.4%, respectively. According to 2D-HSQC NMR and31P NMR analyses, the relative content of β-O-4 ether linkages in the isolated lignin decreased from 18.4 ± 0.4% to 14.2 ± 0.3% after EAP treatment. The total phenolic hydroxyl content reached 2.26 ± 0.08 mmol/g, and the syringyl-to-guaiacyl (S/G) ratio declined from 1.72 ± 0.04 to 0.71 ± 0.03. Based on these observations, it is proposed that the ethanolamine component facilitates the dissociation of the lignin network through hydrogen bonding and stabilizes reactive intermediates, while the pyruvate component participates in the cleavage of β-O-4 ether linkages and the removal of methoxy groups via proton catalysis and nucleophilic attack. Compared with the ethanolamine and ethanolamine acetate systems, EAP pretreatment yielded lignin of higher purity (98.4 ± 0.3%) under milder conditions, and the isolated lignin exhibited stronger antioxidant activity (IC50= 0.17 ± 0.02 mg/mL). This work offers insights into the development of pretreatment systems that combine efficient separation with structural preservation of lignin.
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危险品化学品经营许可证（带存储）