JOURNAL OF CHROMATOGRAPHY A
·
2014
·
IF 4.258
Mian Wu,Liying Wang,Baizhao Zeng,Faqiong Zhao
A new poly(3,4-ethylenedioxythiophene)-ionic liquid (i.e. 1-hydroxyethyl-3-methyl imidazolium-bis[(trifluoromethyl)sulfonyl]imide) functionalized graphene nanosheets (PEDOT-IL/GNs) composite coating was electrodeposited on a stainless steel wire for headspace solid-phase microextraction. The coating showed porous folded and wrinkled structure and had large surface area due to the combined effect of PEDOT and IL/GNs. In addition, it displayed high thermal stability (up to 340 °C) and durable property (could be used for more than 200 times). The PEDOT-IL/GNs coating exhibited high affinity to benzene derivatives studied (i.e. toluene, 1,4-dimethylbenzene, 1,2-dimethylbenzene, 2-chlorotoluene, 1,3,5-trimethylbenzene and 1,4-dichlorobenzene) as they can interact through π–π and hydrophobic interactions. When they were extracted the enrichment factors ranged from 1901 (for 1,4-dichlorobenzene) to 3041 (for 1,4-dimethylbenzene). Coupled with gas chromatography-flame ionization detection, the benzene derivatives were extracted and determined. Wide linear ranges with 4 orders of magnitude (0.06–500 μg L −1 ) and low limits of detection (10.7–19.8 ng L −1 ) were achieved. The RSDs of chromatographic peak areas were <5.9% ( n = 5) and <7.5% ( n = 5) for single fiber and fiber-to-fiber, respectively. The method was applied to the determination of the benzene derivatives in real samples with acceptable recoveries from 82.3% to 108.3%.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Leqing He,Shuangbai Li,Ping Liu,Jiqin Zhu,Chongpin Huang
Novel co-ethanolysis enables one-pot depolymerization of PET and cotton. • Results suggest a possible bifunctional swelling–catalysis synergy. • 48.7% EL yield and 90.7% DET yield. • LCA and TEA indicate favorable energy, carbon, and cost performance. To address the key bottlenecks in poly(ethylene terephthalate) (PET)/cotton textile recycling—namely, separation difficulty, high energy consumption, and low product value—this study developed an ionic liquid [Hnmp]HSO 4 /ethanol system for the conversion of PET and cotton into high-value chemicals, diethyl terephthalate (DET) and ethyl levulinate (EL), enabling simultaneous ethanolysis of both cotton and PET without sorting. The results suggest that the [Hnmp] + cation may interact with cotton and PET through its lactam carbonyl group, potentially promoting substrate swelling and structural disruption, while the HSO 4 − anion provides Brønsted acid sites for ethanolysis. This proposed swelling–catalysis synergy may contribute to the superior catalytic performance of [Hnmp]HSO 4 compared with conventional acid catalysts. Under optimized conditions, the PET conversion reached 95.6%, with a DET yield of 90.7%, and the cotton was converted to EL with a yield of 48.7%. The system exhibited good adaptability across different PET/cotton (P/C) blend ratios. Life cycle assessment (LCA) indicated a reduction of approximately 30–34% in NREU and GWP relative to the modeled Ni–ZnO/Al 2 O 3 –HPWV reference route. Techno-economic analysis (TEA) further indicated the economic feasibility and scale-up potential of the process at an assumed processing capacity of 1000 t year −1 . This work provides a potentially cost-effective and environmentally sustainable pathway for the valorization of mixed textile waste. Download: Download high-res image (184KB) Download: Download full-size image
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Jinxuan Li,Shuimiao Zhang,Xiaolin Zhu,Jiao Qu
First electrochemical DNA sensor for detecting vancomycin resistance genes vanA / vanB . • Synergistic AuNPs/IL-CNT nanocomposite boosts signal amplification and probe loading. • Wide linear range (0.1 pM-10 nM) with an ultra-low detection limit of 0.1 pM. • Validation in real water samples shows 96.4–106.9% recovery and correlates with qPCR. • High specificity, good stability (RSD < 2.17%), detects variable-length fragments. The widespread occurrence of antibiotic resistance genes (ARGs) has become a severe global threat to environmental and public health. The detection of vancomycin resistance genes (VRGs) is particularly critical, given vancomycin's role as a last-line agent against multidrug-resistant Gram-positive bacteria. In this study, we developed a novel electrochemical DNA sensor for the ultrasensitive detection of VRGs, representing a novel electrochemical approach for VRG detection with significant performance advantages over existing methods for ARGs. The sensor incorporated a rationally designed layered interface. This interface was formed by immobilizing ionic liquid-functionalized carbon nanotubes (IL-CNT) onto a glassy carbon electrode to form a highly conductive substrate, which facilitated electron transfer and served as an ideal platform for the subsequent electrodeposition of gold nanoparticles (AuNPs). The resulting AuNPs/IL-CNT nanocomposite significantly increased the electroactive surface area and provided abundant sites for anchoring thiolated van A-specific single-stranded DNA probes. This synergistic multi-component architecture significantly enhanced both probe loading capacity and electrochemical signal transduction efficiency. The sensor demonstrated outstanding performance, including an exceptionally low detection limit of 0.1 pM, a short assay time of 40 min, high reproducibility (RSD < 1.18%), excellent selectivity, and good stability (RSD < 2.17%). Furthermore, results from detecting van A in various water samples were highly consistent with quantitative real-time polymerase chain reaction. Hence, this work presents a rapid, reliable, and highly sensitive platform for monitoring ARGs in real-world aquatic environments. Download: Download high-res image (128KB) Download: Download full-size image
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高影响因子
MOLECULES
·
2026
·Vol. 31
·期 12
·2020
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IF 5.1
Yaqi Liu,Yanyan Huo,Quan Han,Xiaohui Yang
A new method has been established for determining trace amounts of platinum in water using ion liquid (IL)-dispersive liquid–liquid microextraction (DLLME) combined with graphite furnace atomic absorption spectroscopy (GFAAS). The method is based on the use of a self-prepared reagent, 5-(5-cyano-2-pyridineazo)-2,4-diaminotoluene (5-CN-PADAT), as a chelating agent, which reacts with Pt(IV) to form a hydrophobic chelate. The extraction solvent is 1-octyl-3-methylimidazolium hexafluorophosphate ([C8mim][PF6]), and ethyl acetate is used as the dispersive solvent. After the extraction is completed, the extraction phase formed by [C8mim][PF6] and ethyl acetate has a relatively low viscosity and can be directly used for the determination of GFAAS. A single-factor rotational method was employed to optimize conditions affecting DLLME extraction efficiency. The interactions among the factors affecting DLLME were analyzed using response surface optimization (RSM). Under optimal conditions, platinum concentrations exhibited good linearity within the range of 40–280 ng/mL, with a detection limit of 0.3 ng/mL. AGREEprep was used to discuss the ecological friendliness of the method, demonstrating its low cost, ease of operation, simple equipment requirements, and environmental friendliness. When applied to determining trace amounts of platinum in water samples, the results were satisfactory.
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PubMed
高影响因子
Materials Today Nano
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2026
·
IF 7.6
Haolin Li,Qunfeng Zeng,Mingjin Fan,Rui Dong,Zeming Pang,Wenling Zhang
The rapid advancement of miniaturized and lightweight precision instruments is placing increasingly stringent demands on the lubricating protective films at friction interfaces. In this study, a nanocomposite lubricating additive consisting of poly(ionic liquid)-P[V 6 mim]SDBS (PIL) modified graphene oxide (PGO) was synthesized. This establishes a PGO-PIL/PAO 10 composite lubrication system exhibiting tunable viscosity-temperature properties, excellent thermal stability and outstanding friction reducing and anti-wear performance. With the optimal lubricant system (2.0 wt% PIL+1.0 wt% PGO), a low coefficient of friction (CoF) as low as 0.06 and reduces wear by 92.5 % compared to PAO 10 base oil. Crucially, a multifunctional integrated tribofilm with a multilayer structure was successfully formed at the friction interface, synergistically achieving strong adsorption, superior anti wear properties and adaptive lubrication. In-depth mechanism analysis indicates that the excellent tribological performance stems from the dynamic synergistic interaction among a carbonaceous reorganized film formed by PIL and PGO, a tribochemical reaction layer containing active elements, a physicochemical adsorption layer anchored by polymer chains, and a deep metal oxide layer, providing new insights into the adaptive behavior of the PGO-PIL system at metal interfaces. This work establishes the exceptional adaptive lubrication and self-healing capabilities of the PGO-PIL nanocomposite, while further deciphering the synergistic mechanism that underpins its enhanced tribological behavior. The performance regulation achieved through noncovalent modification of GO by the flexible adsorption structure of PIL is crucial for developing multifunctional, high-performance nanolubricants with excellent structure-property relationships.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Yu Meng,Yibing Yang,Mingzi Sun,Shaozhuan Huang,Bolong Huang,Wenjun Zhang,Shuilin Wu
The development of sustainable and robust aqueous batteries is urgently needed to meet growing energy demands while addressing safety, cost, and environmental concerns. Yet their practical implementation is constrained by three fundamental challenges: the narrow electrochemical stability window (ESW) of water, its temperature sensitivity due to evaporation and freezing, and the electrode dissolution. These challenges are intrinsically governed by molecular-level interactions among water, electrolyte ions, and electrode materials. In this work, we overcome these challenges by employing the water-miscible ionic liquid 1-butyl-3-methylimidazolium trifluoromethanesulfonate (BMIMOTF) to formulate water-in-ionic-liquid (WiIL) electrolytes that deliberately modulates molecular-level interactions among water, electrolyte ions, and organic electrode materials. Spectroscopic analyses reveal the formation of a unique water-lean solvation sheath, [BMIM + (H 2 O) 2 OTF − ], that effectively suppresses water decomposition and mitigates volatility and freezing, but also strengthens ion–electrode interactions to inhibit the perylene-3,4,9,10-tetracarboxylic diimide (PTCDI) dissolution. Leveraging these interactions, we demonstrate a proof-of-concept metal-free aqueous full cell with PTCDI anode and polyaniline (PANI) cathode, which delivered 71% capacity retention after 15, 000 cycles, high-rate capability, and stable operation from −10 to 60 °C. This study established a new strategy for designing sustainable aqueous batteries through solvation and interfacial engineering with water-miscible ionic liquids.
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JOURNAL OF MEMBRANE SCIENCE
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2026
·
IF 8.8
Mengyao Yao,Zhaojing Jing,Weihao Zhang,Miaomiao Zhu,Rong Xu,Haitao Wang,Jun Li,Ning Fan,Qiuying Jia,Na Chang
The separation of dyes and salts in printing and dyeing wastewater is crucial for the recovery of valuable resource. Loose nanofiltration (LNF) membranes, which can achieve the separation of dye/salt, usually have relatively lower water permeability due to the presence of dense and thick polyamide (PA) layer on top of the polysulfone (PSf) ultrafiltration membrane. Compared to LNF membranes, tight ultrafiltration (TUF) membranes with uniform pore size and distribution will be helpful for the improvement of permeability and achieve the goal for dye/salt separation. Here, novel TUF membrane is designed by regulation of interfacial polymerization (IP) process via the introduction of ionic liquid 1-Hexyl-3-methylimidazolium chloride (HMIC) as co-solvent in aqueous phase. The π-π interaction between HMIC and monomers effectively slow down the diffusion rate, leading to the in-pore IP reaction resulting in narrowed pore size and distribution compared to the original PSf membrane, instead of the formation dense and thick PA layers on top of the PSf membrane. As a result, the resultant TUF membrane with PA located in the pore of PSf membrane possesses smaller pore size ∼10 nm and higher water permeability. The prepared TUF-40 membrane exhibits excellent separation performance with water flux up to 371.25 L m -2 h -1 , together with Congo Red (CR) rejection of 99.00% and highest dye/salt selectivity of 15.79. In addition, the TUF-40 membrane exhibits outstanding antifouling performance, with a flux recovery rate (FRR) of 82.99%, which will be benefit for the application in treating the dyeing wastewater.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
·
IF 9.1
Zhiping Gu,Fen Liu,Wenxuan Bai,Jiang Yu
Recently, the oxidative removal of hydrogen sulfide (H 2 S) using chelated iron-based ionic liquids has garnered extensive research attention owing to high H 2 S conversion efficiency and no by-salts production. Nevertheless, for natural gas, biogas, H 2 S is typically accompanied by high concentrations of carbon dioxide (CO 2 ) where excess CO 2 molecules tend to occupy the binding sites of H 2 S, thereby limiting the desulfurization efficiency. Therefore, developing H 2 S/CO 2 selective absorption materials is of great significance. In this work, the COSMO-RS method was employed to systematically screen cation–anion pairs and evaluate 13 organic solvents for their H 2 S/CO 2 selectivity and solubility. The chelated iron-based ionic liquid (HDMIFeEDTA) was identified as the most promising candidate, and its composite with NMP at a 1:2 mass ratio was selected as the optimal absorbent. This composite exhibited excellent desulfurization performance under CO 2 -rich conditions. Interestingly, the presence of CO 2 significantly enhanced H 2 S removal in the composite. FT-IR, ESI-MS, and DFT calculation revealed that after [Fe(III)EDTA] − is reduced to [Fe(II)EDTA] 2− by H 2 S, the electrons of [Fe(II)EDTA] 2− transfer to CO 2 , resulting the charge of O (CO 2 ) more negative. This negative site provides an additional binding site for H 2 S, thereby promoting its uptake through hydrogen-bond interactions. These results not only clarify the promoting role of CO 2 in the desulfurization process but also provide a new strategy for developing high-efficiency chelated iron-based ionic liquid absorbents for fuel gas purification
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2026
·
IF 3.9
Haiyan Du,Lina Gao,Xiaoxiao Liu,Ruidong Zhang,Jiaying Wang,Zhubo Liu,Tingyu Yang
Abstract Composite gels have attracted attention in recent years in the fields of smart sensing and flexible wearable electronics. Easy damage, inability to self-heal, and freeze hardening at low temperatures are still the main issues that limit the development of gel sensors. In this work, multifunctional polyionic composite gel strain sensors were fabricated by combining poly(vinyl alcohol) (PVA) with hydrophobic imidazolium-type poly(ionic liquid) (P[VPI+][Tf2N–]). The mixed polymer solution realized spontaneous gelation at room temperature, and the gels exhibited self-healing, antifreezing, high stretchability, and conductivity, making them suitable for human joint motion monitoring and speech recognition at room or low temperatures. Moreover, through modification with silica nanoparticles and heptadecafluorodecyltrimethoxysilane, the nanocomposite coating of PVA/P[VPI+][Tf2N–] achieved superhydrophobicity (a static contact angle of 159.03°), displaying effective antifogging, antifouling, and self-cleaning properties. This work provides a universal approach to preparing multifunctional polymer composite materials based on poly(ionic liquids), which could be extended to other polymers.
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高影响因子
SOLID STATE IONICS
·
2026
·
IF 3.7
Meng Wei,Yihan Li,Zihan Geng,Xin Zhao,Meng Li,Tao Zhang,Guanghui Liu,Zhanjun Yu,Shuxia Wang,Song Xu
Oxide electrolyte Li 1.5 Al 0.5 Ge 1.5 (PO4) 3 (LAGP) has attracted much attention due to their potential and are considered ideal electrolytes for next-generation high-energy-density solid-state lithium metal batteries. However, their application is still limited by problems such as poor solid-solid interface contact, high interface resistance, lithium dendrite growth, and embrittlement during operation. To address these issues, our work propose a synergistic strategy to prepare a novel flexible quasi-solid-state ceramic-polymer electrolyte. This electrolyte is composed of [N1,4,4,4]TFSI ionic liquid (IL), polyvinylidene fluoride (PVDF), LiTFSI salt, and LAGP, which significantly improves the ionic conductivity and cycle stability of the ceramic-polymer electrolyte battery. The prepared LAGP/PVDF composite electrolyte exhibits an ionic conductivity as high as 1.16 × 10 −3 S cm −1 . LAGP nanoparticles have the dual function than not only can reduce the crystallinity of the polymer matrix; but also act as lithium-ion conductors to enhance lithium-ion transport capabilities. Furthermore, the Li/LiFeO 4 battery based on this ceramic-polymer electrolyte exhibits excellent interfacial compatibility and dendrite-free characteristics, with significantly enhanced cycle stability, capable of stable operation exceeding 300 cycles. This work demonstrates the feasibility of the PVDF/LAGP ceramic-polymer electrolyte and its industrial application prospects in solid-state lithium metal batteries.
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高影响因子
FUEL
·
2026
·
IF 7.8
Pengcheng Qi,Zhenhao Xiao,Wenjing Song,Jiawei Xia,Weizuo Li,Xinmin Li,Guangyu He,Dafang He,Haiqun Chen
The escalating atmospheric CO 2 concentration necessitates its conversion into highvalue- added products like cyclic carbonates, yet existing catalysts face challenges such as poor recoverability (homogeneous ionic liquids, ILs) and insufficient activity (monometallic metal–organic frameworks, MOFs). To address this, a series of bimetallic Ni x /Zn 1-x -PTA MOFs with different Ni/Zn molar ratios were synthesized via a solvothermal method, and then composite catalysts (Ni x /Zn 1-x -PTA@Mim-6) were prepared by impregnating the MOFs with Mim-6 ILs. This work provides a promising approach for efficient and sustainable CO 2 capture and conversion by integrating the advantages of bimetallic MOFs (high porosity, recyclability) and ILs (high catalytic activity). Characterizations via FT-IR, XRD, TEM, STEM-EDS, and TGA confirmed the successful synthesis, well-defined structure (e.g., nanoflower-like morphology of Ni 0.2 /Zn 0.8 -PTA MOFs), homogeneous elemental distribution, and good thermal stability of the composites. Catalytic tests showed that Ni 0.2 /Zn 0.8 -PTA@Mim-6 exhibited optimal performance: under solvent-free and co-catalyst-free mild conditions, the yield and selectivity of styrene carbonate both exceeded 99%, which was significantly superior to monometallic Ni-PTA@Mim-6 (46% yield) and Ni 0.2 /Zn 0.8 - PTA MOFs with co-catalyst (76% efficiency). The catalyst also demonstrated excellent recyclability (no significant activity loss after 5 cycles, conversion 69% and selectivity 99%) and universality for various epoxides (e.g., high yields for 1,2-butylene oxide and epichlorohydrin). Mechanistic studies revealed that the synergistic effect of multiple active sites—Lewis acid sites (unsaturated Ni/Zn) for epoxide activation, Lewis base sites (O in Ni-O/Zn-O) for CO 2 activation, and Br - from Mim-6 for ring opening—lowered the reaction energy barrier (activation energy 35.80 kJ/mol) and enhanced catalytic efficiency.
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高影响因子
DESALINATION
·
2026
·
IF 9.9
Yaoxian Hu,Binbin Zhou,Xinyu Xiao,Hui Su,Wensen Liu,Zhaowu Zhu,Tao Qi
Dual roles of electronic effect and steric hindrance in NOPs are decoupled. • A structure-performance paradox in linear and branched NOPs is revealed. • The intrinsic Li + /Mg 2+ micro-solvation divergence (CIP vs. SSIP) is uncovered. • A dual-parameter model is established to predict extraction capacity and selectivity. This study proposes a synergistic electronic effect and steric hindrance regulation mechanism in neutral organophosphate-extraction systems targeting efficient Li and Mg extraction from salt lake brines. Using tributyl phosphate (TBP), tripentyl phosphate (TAP), and triisoamyl phosphate (TIAP) as model extractants, we decoupled the dual roles of linear-chain elongation and branching in alkyl chain structures. The former enhances the P O electron density and intrinsic Li + affinity via the positive inductive effect, whereas branched structures govern the selectivity via steric hindrance. Combined molecular dynamics (MD) simulations and density functional theory (DFT) calculations revealed that Li + forms a compact four-coordinate contact-ion pair (CIP, [Li·2L·H 2 O·TFSI]), whereas Mg 2+ exists as a bulky six-coordinate solvent-separated ion pair (SSIP, [Mg·4L·2H 2 O] 2+ ). This difference considerably amplifies steric sieving. Specifically, the bulky branched chains of TIAP impose a severe conformational energy penalty (97.5 kJ/mol) on the crowded Mg 2+ shell, strongly suppressing Mg 2+ coordination. Consequently, the extraction efficiency of TIAP is comparatively low in pure Li + systems (60.5%) but surges to 83% in high-Mg backgrounds under the synergistic action of steric Mg 2+ rejection and the Hofmeister effect, achieving a superior separation factor of 215.0. Finally, a quantitative dual-parameter model that accurately explains the extraction capacity (TAP > TBP > TIAP) and selectivity (TIAP > TAP > TBP) trends was established. This study provides deep molecular insights into Li + /Mg 2+ separation along with a robust theoretical framework for rational design of selective ligands for complex brines. Download: Download high-res image (94KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）